Human disturbance changes based on spatiotemporal heterogeneity of regional ecological vulnerability: A case study of Qiqihaer city, northwestern Songnen Plain, China
Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Yang, Yijia [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Self-assembled 3D hierarchical MnCO - Rajendiran, Rajmohan ELSEVIER, 2020, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:291 ; year:2021 ; day:1 ; month:04 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.jclepro.2020.125262 |
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ELV053204468 |
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| 245 | 1 | 0 | |a Human disturbance changes based on spatiotemporal heterogeneity of regional ecological vulnerability: A case study of Qiqihaer city, northwestern Songnen Plain, China |
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| 520 | |a Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. | ||
| 520 | |a Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. | ||
| 650 | 7 | |a Spatial auto-correlation analysis |2 Elsevier | |
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| 650 | 7 | |a Ecological risk |2 Elsevier | |
| 650 | 7 | |a Ecological vulnerability |2 Elsevier | |
| 650 | 7 | |a Ecological sensitivity |2 Elsevier | |
| 700 | 1 | |a Song, Ge |4 oth | |
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10.1016/j.jclepro.2020.125262 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001308.pica (DE-627)ELV053204468 (ELSEVIER)S0959-6526(20)35306-3 DE-627 ger DE-627 rakwb eng 540 VZ 35.18 bkl Yang, Yijia verfasserin aut Human disturbance changes based on spatiotemporal heterogeneity of regional ecological vulnerability: A case study of Qiqihaer city, northwestern Songnen Plain, China 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. Spatial auto-correlation analysis Elsevier ArcGIS Elsevier Ecological risk Elsevier Ecological vulnerability Elsevier Ecological sensitivity Elsevier Song, Ge oth Enthalten in Elsevier Science Rajendiran, Rajmohan ELSEVIER Self-assembled 3D hierarchical MnCO 2020 Amsterdam [u.a.] (DE-627)ELV003750353 volume:291 year:2021 day:1 month:04 pages:0 https://doi.org/10.1016/j.jclepro.2020.125262 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 35.18 Kolloidchemie Grenzflächenchemie VZ AR 291 2021 1 0401 0 |
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10.1016/j.jclepro.2020.125262 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001308.pica (DE-627)ELV053204468 (ELSEVIER)S0959-6526(20)35306-3 DE-627 ger DE-627 rakwb eng 540 VZ 35.18 bkl Yang, Yijia verfasserin aut Human disturbance changes based on spatiotemporal heterogeneity of regional ecological vulnerability: A case study of Qiqihaer city, northwestern Songnen Plain, China 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. Spatial auto-correlation analysis Elsevier ArcGIS Elsevier Ecological risk Elsevier Ecological vulnerability Elsevier Ecological sensitivity Elsevier Song, Ge oth Enthalten in Elsevier Science Rajendiran, Rajmohan ELSEVIER Self-assembled 3D hierarchical MnCO 2020 Amsterdam [u.a.] (DE-627)ELV003750353 volume:291 year:2021 day:1 month:04 pages:0 https://doi.org/10.1016/j.jclepro.2020.125262 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 35.18 Kolloidchemie Grenzflächenchemie VZ AR 291 2021 1 0401 0 |
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10.1016/j.jclepro.2020.125262 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001308.pica (DE-627)ELV053204468 (ELSEVIER)S0959-6526(20)35306-3 DE-627 ger DE-627 rakwb eng 540 VZ 35.18 bkl Yang, Yijia verfasserin aut Human disturbance changes based on spatiotemporal heterogeneity of regional ecological vulnerability: A case study of Qiqihaer city, northwestern Songnen Plain, China 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. Spatial auto-correlation analysis Elsevier ArcGIS Elsevier Ecological risk Elsevier Ecological vulnerability Elsevier Ecological sensitivity Elsevier Song, Ge oth Enthalten in Elsevier Science Rajendiran, Rajmohan ELSEVIER Self-assembled 3D hierarchical MnCO 2020 Amsterdam [u.a.] (DE-627)ELV003750353 volume:291 year:2021 day:1 month:04 pages:0 https://doi.org/10.1016/j.jclepro.2020.125262 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 35.18 Kolloidchemie Grenzflächenchemie VZ AR 291 2021 1 0401 0 |
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10.1016/j.jclepro.2020.125262 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001308.pica (DE-627)ELV053204468 (ELSEVIER)S0959-6526(20)35306-3 DE-627 ger DE-627 rakwb eng 540 VZ 35.18 bkl Yang, Yijia verfasserin aut Human disturbance changes based on spatiotemporal heterogeneity of regional ecological vulnerability: A case study of Qiqihaer city, northwestern Songnen Plain, China 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. Spatial auto-correlation analysis Elsevier ArcGIS Elsevier Ecological risk Elsevier Ecological vulnerability Elsevier Ecological sensitivity Elsevier Song, Ge oth Enthalten in Elsevier Science Rajendiran, Rajmohan ELSEVIER Self-assembled 3D hierarchical MnCO 2020 Amsterdam [u.a.] (DE-627)ELV003750353 volume:291 year:2021 day:1 month:04 pages:0 https://doi.org/10.1016/j.jclepro.2020.125262 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 35.18 Kolloidchemie Grenzflächenchemie VZ AR 291 2021 1 0401 0 |
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10.1016/j.jclepro.2020.125262 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001308.pica (DE-627)ELV053204468 (ELSEVIER)S0959-6526(20)35306-3 DE-627 ger DE-627 rakwb eng 540 VZ 35.18 bkl Yang, Yijia verfasserin aut Human disturbance changes based on spatiotemporal heterogeneity of regional ecological vulnerability: A case study of Qiqihaer city, northwestern Songnen Plain, China 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. Spatial auto-correlation analysis Elsevier ArcGIS Elsevier Ecological risk Elsevier Ecological vulnerability Elsevier Ecological sensitivity Elsevier Song, Ge oth Enthalten in Elsevier Science Rajendiran, Rajmohan ELSEVIER Self-assembled 3D hierarchical MnCO 2020 Amsterdam [u.a.] (DE-627)ELV003750353 volume:291 year:2021 day:1 month:04 pages:0 https://doi.org/10.1016/j.jclepro.2020.125262 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 35.18 Kolloidchemie Grenzflächenchemie VZ AR 291 2021 1 0401 0 |
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(2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. 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Human disturbance changes based on spatiotemporal heterogeneity of regional ecological vulnerability: A case study of Qiqihaer city, northwestern Songnen Plain, China |
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Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. |
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Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. |
| abstract_unstemmed |
Scientists have assessed the assessment of ecological vulnerability (EV) under conditions of human activity; however, the performance of existing frameworks still needs to be improved to meet the challenges of assessment. In this study, a framework that combines ecological sensitivity and ecological risk as the end point of EV assessment was established, and was used to investigate the spatiotemporal characteristics and major environmental issues of EV in Qiqihaer City, northwest of the Songnen Plain. At the same time, the Hemeroby index was introduced to explore the level of human disturbances in the high-high (HH) and low-low (LL) agglomeration areas of the ecological vulnerability index (EVI). The results show the following: (1) For the temporal dimension, from 2000 to 2015, the level of EV of the study area was moderate. For the subsystems, the land desertification sensitivity index (LSI), soil erosion sensitivity index (SSI) and ecological risk index (ERI) all showed downward trends; among these indices, the SSI and LSI decreased significantly, and the reductions were 0.0644 and 0.0516, respectively. (2) For the spatial dimension, from 2000 to 2015, EVI and subsystems showed strong spatial autocorrelation, and their spatial structural differences were more significant. Moreover, these indicators have certain internal connections, and their spatial distribution is clustered rather than random. (3) In the HH and LL regions of the EVI, the level of the human disturbance index was VI, and the proportion of this level in the HH region was higher than that in the LL region. The research results are of great significance for ecological protection, land resource utilization and sustainable development in similar areas. |
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