Nutrient Dynamics and Eutrophication Patterns in a Semi-Arid Wetland: The Effects of Fluctuating Hydrology

Abstract A three-year study was carried out in Las Tablas de Daimiel National Park, a Spanish semi-arid wetland, to describe eutrophication patterns and the responses of the main primaryproducers in contrasting inundation years. Total and dissolved nitrogen and phosphorus, phytoplankton chlorophyll-...
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Autor*in:	Sánchez-Carrillo, S. [verfasserIn] Álvarez-Cobelas, M.

Format:	Artikel
Sprache:	Englisch

Erschienen:	2001

Systematik:	ZC 7520 ZC 7520

Anmerkung:	© Kluwer Academic Publishers 2001

Übergeordnetes Werk:	Enthalten in: Water, air & soil pollution - Kluwer Academic Publishers, 1971, 131(2001), 1-4 vom: Okt., Seite 97-118
Übergeordnetes Werk:	volume:131 ; year:2001 ; number:1-4 ; month:10 ; pages:97-118

Links:	Volltext

DOI / URN:	10.1023/A:1011903300635

Katalog-ID:	OLC2084483794

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520			\|a Abstract A three-year study was carried out in Las Tablas de Daimiel National Park, a Spanish semi-arid wetland, to describe eutrophication patterns and the responses of the main primaryproducers in contrasting inundation years. Total and dissolved nitrogen and phosphorus, phytoplankton chlorophyll-a(monthly) and emergent macrophyte cover (yearly) were measured together with water levels. Water balances were taken to assessphosphorus and nitrogen annual nutrient budgets. The wetland could be termed hypertrophic. Nutrients displayed distinct seasonality because nitrogen peaked both in winter and summer,whereas phosphorus did so in late spring and early summer. A reduction in both total nitrogen and phosphorus in humid yearsdue to higher water levels was also observed. An important spatial heterogeneity in nutrient content occurred throughout the study, part of which could be ascribed to hydrological fluctuations since the input site showed higher mean values in rainy years. Mass balances suggested that sedimentation played a key role in nutrient dynamics, with macrophyte leaching and waterfowl additions being minor sources. Internalloading was much higher than external loading in this wetland,thereby being responsible for higher sedimentation rates.Phytoplankton chlorophyll-a displayed seasonality, withpeaks in late summer, when macrophyte activity was decreasing.No relationship between either chlorophyll-a and nutrients or hydrological conditions could be ascertained formost sampling stations and years of study. However, the waterlevel-dependent, emergent macrophyte sawgrass (Cladium mariscus) presented a statistically significant relationship with both nitrogen and phosphorus. Our results demonstrate thatmacrophytes must be taken into account in wetland eutrophicationmodels. A conceptual model comparing the responses of primary producers to eutrophication in lakes and wetlands is outlined.
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spelling	10.1023/A:1011903300635 doi (DE-627)OLC2084483794 (DE-He213)A:1011903300635-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Sánchez-Carrillo, S. verfasserin aut Nutrient Dynamics and Eutrophication Patterns in a Semi-Arid Wetland: The Effects of Fluctuating Hydrology 2001 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2001 Abstract A three-year study was carried out in Las Tablas de Daimiel National Park, a Spanish semi-arid wetland, to describe eutrophication patterns and the responses of the main primaryproducers in contrasting inundation years. Total and dissolved nitrogen and phosphorus, phytoplankton chlorophyll-a(monthly) and emergent macrophyte cover (yearly) were measured together with water levels. Water balances were taken to assessphosphorus and nitrogen annual nutrient budgets. The wetland could be termed hypertrophic. Nutrients displayed distinct seasonality because nitrogen peaked both in winter and summer,whereas phosphorus did so in late spring and early summer. A reduction in both total nitrogen and phosphorus in humid yearsdue to higher water levels was also observed. An important spatial heterogeneity in nutrient content occurred throughout the study, part of which could be ascribed to hydrological fluctuations since the input site showed higher mean values in rainy years. Mass balances suggested that sedimentation played a key role in nutrient dynamics, with macrophyte leaching and waterfowl additions being minor sources. Internalloading was much higher than external loading in this wetland,thereby being responsible for higher sedimentation rates.Phytoplankton chlorophyll-a displayed seasonality, withpeaks in late summer, when macrophyte activity was decreasing.No relationship between either chlorophyll-a and nutrients or hydrological conditions could be ascertained formost sampling stations and years of study. However, the waterlevel-dependent, emergent macrophyte sawgrass (Cladium mariscus) presented a statistically significant relationship with both nitrogen and phosphorus. Our results demonstrate thatmacrophytes must be taken into account in wetland eutrophicationmodels. A conceptual model comparing the responses of primary producers to eutrophication in lakes and wetlands is outlined. Álvarez-Cobelas, M. aut Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 131(2001), 1-4 vom: Okt., Seite 97-118 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:131 year:2001 number:1-4 month:10 pages:97-118 https://doi.org/10.1023/A:1011903300635 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_11 GBV_ILN_22 GBV_ILN_23 GBV_ILN_31 GBV_ILN_40 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2027 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 ZC 7520 ZC 7520 AR 131 2001 1-4 10 97-118
allfields_unstemmed	10.1023/A:1011903300635 doi (DE-627)OLC2084483794 (DE-He213)A:1011903300635-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Sánchez-Carrillo, S. verfasserin aut Nutrient Dynamics and Eutrophication Patterns in a Semi-Arid Wetland: The Effects of Fluctuating Hydrology 2001 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2001 Abstract A three-year study was carried out in Las Tablas de Daimiel National Park, a Spanish semi-arid wetland, to describe eutrophication patterns and the responses of the main primaryproducers in contrasting inundation years. Total and dissolved nitrogen and phosphorus, phytoplankton chlorophyll-a(monthly) and emergent macrophyte cover (yearly) were measured together with water levels. Water balances were taken to assessphosphorus and nitrogen annual nutrient budgets. The wetland could be termed hypertrophic. Nutrients displayed distinct seasonality because nitrogen peaked both in winter and summer,whereas phosphorus did so in late spring and early summer. A reduction in both total nitrogen and phosphorus in humid yearsdue to higher water levels was also observed. An important spatial heterogeneity in nutrient content occurred throughout the study, part of which could be ascribed to hydrological fluctuations since the input site showed higher mean values in rainy years. Mass balances suggested that sedimentation played a key role in nutrient dynamics, with macrophyte leaching and waterfowl additions being minor sources. Internalloading was much higher than external loading in this wetland,thereby being responsible for higher sedimentation rates.Phytoplankton chlorophyll-a displayed seasonality, withpeaks in late summer, when macrophyte activity was decreasing.No relationship between either chlorophyll-a and nutrients or hydrological conditions could be ascertained formost sampling stations and years of study. However, the waterlevel-dependent, emergent macrophyte sawgrass (Cladium mariscus) presented a statistically significant relationship with both nitrogen and phosphorus. Our results demonstrate thatmacrophytes must be taken into account in wetland eutrophicationmodels. A conceptual model comparing the responses of primary producers to eutrophication in lakes and wetlands is outlined. Álvarez-Cobelas, M. aut Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 131(2001), 1-4 vom: Okt., Seite 97-118 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:131 year:2001 number:1-4 month:10 pages:97-118 https://doi.org/10.1023/A:1011903300635 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_11 GBV_ILN_22 GBV_ILN_23 GBV_ILN_31 GBV_ILN_40 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2027 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 ZC 7520 ZC 7520 AR 131 2001 1-4 10 97-118
allfieldsGer	10.1023/A:1011903300635 doi (DE-627)OLC2084483794 (DE-He213)A:1011903300635-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Sánchez-Carrillo, S. verfasserin aut Nutrient Dynamics and Eutrophication Patterns in a Semi-Arid Wetland: The Effects of Fluctuating Hydrology 2001 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2001 Abstract A three-year study was carried out in Las Tablas de Daimiel National Park, a Spanish semi-arid wetland, to describe eutrophication patterns and the responses of the main primaryproducers in contrasting inundation years. Total and dissolved nitrogen and phosphorus, phytoplankton chlorophyll-a(monthly) and emergent macrophyte cover (yearly) were measured together with water levels. Water balances were taken to assessphosphorus and nitrogen annual nutrient budgets. The wetland could be termed hypertrophic. Nutrients displayed distinct seasonality because nitrogen peaked both in winter and summer,whereas phosphorus did so in late spring and early summer. A reduction in both total nitrogen and phosphorus in humid yearsdue to higher water levels was also observed. An important spatial heterogeneity in nutrient content occurred throughout the study, part of which could be ascribed to hydrological fluctuations since the input site showed higher mean values in rainy years. Mass balances suggested that sedimentation played a key role in nutrient dynamics, with macrophyte leaching and waterfowl additions being minor sources. Internalloading was much higher than external loading in this wetland,thereby being responsible for higher sedimentation rates.Phytoplankton chlorophyll-a displayed seasonality, withpeaks in late summer, when macrophyte activity was decreasing.No relationship between either chlorophyll-a and nutrients or hydrological conditions could be ascertained formost sampling stations and years of study. However, the waterlevel-dependent, emergent macrophyte sawgrass (Cladium mariscus) presented a statistically significant relationship with both nitrogen and phosphorus. Our results demonstrate thatmacrophytes must be taken into account in wetland eutrophicationmodels. A conceptual model comparing the responses of primary producers to eutrophication in lakes and wetlands is outlined. Álvarez-Cobelas, M. aut Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 131(2001), 1-4 vom: Okt., Seite 97-118 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:131 year:2001 number:1-4 month:10 pages:97-118 https://doi.org/10.1023/A:1011903300635 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_11 GBV_ILN_22 GBV_ILN_23 GBV_ILN_31 GBV_ILN_40 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2027 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 ZC 7520 ZC 7520 AR 131 2001 1-4 10 97-118
allfieldsSound	10.1023/A:1011903300635 doi (DE-627)OLC2084483794 (DE-He213)A:1011903300635-p DE-627 ger DE-627 rakwb eng 570 333.7 VZ 12 13 ssgn BIODIV DE-30 fid ZC 7520 VZ rvk ZC 7520 VZ rvk Sánchez-Carrillo, S. verfasserin aut Nutrient Dynamics and Eutrophication Patterns in a Semi-Arid Wetland: The Effects of Fluctuating Hydrology 2001 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2001 Abstract A three-year study was carried out in Las Tablas de Daimiel National Park, a Spanish semi-arid wetland, to describe eutrophication patterns and the responses of the main primaryproducers in contrasting inundation years. Total and dissolved nitrogen and phosphorus, phytoplankton chlorophyll-a(monthly) and emergent macrophyte cover (yearly) were measured together with water levels. Water balances were taken to assessphosphorus and nitrogen annual nutrient budgets. The wetland could be termed hypertrophic. Nutrients displayed distinct seasonality because nitrogen peaked both in winter and summer,whereas phosphorus did so in late spring and early summer. A reduction in both total nitrogen and phosphorus in humid yearsdue to higher water levels was also observed. An important spatial heterogeneity in nutrient content occurred throughout the study, part of which could be ascribed to hydrological fluctuations since the input site showed higher mean values in rainy years. Mass balances suggested that sedimentation played a key role in nutrient dynamics, with macrophyte leaching and waterfowl additions being minor sources. Internalloading was much higher than external loading in this wetland,thereby being responsible for higher sedimentation rates.Phytoplankton chlorophyll-a displayed seasonality, withpeaks in late summer, when macrophyte activity was decreasing.No relationship between either chlorophyll-a and nutrients or hydrological conditions could be ascertained formost sampling stations and years of study. However, the waterlevel-dependent, emergent macrophyte sawgrass (Cladium mariscus) presented a statistically significant relationship with both nitrogen and phosphorus. Our results demonstrate thatmacrophytes must be taken into account in wetland eutrophicationmodels. A conceptual model comparing the responses of primary producers to eutrophication in lakes and wetlands is outlined. Álvarez-Cobelas, M. aut Enthalten in Water, air & soil pollution Kluwer Academic Publishers, 1971 131(2001), 1-4 vom: Okt., Seite 97-118 (DE-627)12929134X (DE-600)120499-3 (DE-576)014472643 0049-6979 nnns volume:131 year:2001 number:1-4 month:10 pages:97-118 https://doi.org/10.1023/A:1011903300635 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OLC-IBL SSG-OPC-GGO GBV_ILN_11 GBV_ILN_22 GBV_ILN_23 GBV_ILN_31 GBV_ILN_40 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2027 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4219 GBV_ILN_4309 GBV_ILN_4311 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4315 ZC 7520 ZC 7520 AR 131 2001 1-4 10 97-118
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author	Sánchez-Carrillo, S.
spellingShingle	Sánchez-Carrillo, S. ddc 570 ssgn 12 fid BIODIV rvk ZC 7520 Nutrient Dynamics and Eutrophication Patterns in a Semi-Arid Wetland: The Effects of Fluctuating Hydrology
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title	Nutrient Dynamics and Eutrophication Patterns in a Semi-Arid Wetland: The Effects of Fluctuating Hydrology
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title_full	Nutrient Dynamics and Eutrophication Patterns in a Semi-Arid Wetland: The Effects of Fluctuating Hydrology
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title_sort	nutrient dynamics and eutrophication patterns in a semi-arid wetland: the effects of fluctuating hydrology
title_auth	Nutrient Dynamics and Eutrophication Patterns in a Semi-Arid Wetland: The Effects of Fluctuating Hydrology
abstract	Abstract A three-year study was carried out in Las Tablas de Daimiel National Park, a Spanish semi-arid wetland, to describe eutrophication patterns and the responses of the main primaryproducers in contrasting inundation years. Total and dissolved nitrogen and phosphorus, phytoplankton chlorophyll-a(monthly) and emergent macrophyte cover (yearly) were measured together with water levels. Water balances were taken to assessphosphorus and nitrogen annual nutrient budgets. The wetland could be termed hypertrophic. Nutrients displayed distinct seasonality because nitrogen peaked both in winter and summer,whereas phosphorus did so in late spring and early summer. A reduction in both total nitrogen and phosphorus in humid yearsdue to higher water levels was also observed. An important spatial heterogeneity in nutrient content occurred throughout the study, part of which could be ascribed to hydrological fluctuations since the input site showed higher mean values in rainy years. Mass balances suggested that sedimentation played a key role in nutrient dynamics, with macrophyte leaching and waterfowl additions being minor sources. Internalloading was much higher than external loading in this wetland,thereby being responsible for higher sedimentation rates.Phytoplankton chlorophyll-a displayed seasonality, withpeaks in late summer, when macrophyte activity was decreasing.No relationship between either chlorophyll-a and nutrients or hydrological conditions could be ascertained formost sampling stations and years of study. However, the waterlevel-dependent, emergent macrophyte sawgrass (Cladium mariscus) presented a statistically significant relationship with both nitrogen and phosphorus. Our results demonstrate thatmacrophytes must be taken into account in wetland eutrophicationmodels. A conceptual model comparing the responses of primary producers to eutrophication in lakes and wetlands is outlined. © Kluwer Academic Publishers 2001
abstractGer	Abstract A three-year study was carried out in Las Tablas de Daimiel National Park, a Spanish semi-arid wetland, to describe eutrophication patterns and the responses of the main primaryproducers in contrasting inundation years. Total and dissolved nitrogen and phosphorus, phytoplankton chlorophyll-a(monthly) and emergent macrophyte cover (yearly) were measured together with water levels. Water balances were taken to assessphosphorus and nitrogen annual nutrient budgets. The wetland could be termed hypertrophic. Nutrients displayed distinct seasonality because nitrogen peaked both in winter and summer,whereas phosphorus did so in late spring and early summer. A reduction in both total nitrogen and phosphorus in humid yearsdue to higher water levels was also observed. An important spatial heterogeneity in nutrient content occurred throughout the study, part of which could be ascribed to hydrological fluctuations since the input site showed higher mean values in rainy years. Mass balances suggested that sedimentation played a key role in nutrient dynamics, with macrophyte leaching and waterfowl additions being minor sources. Internalloading was much higher than external loading in this wetland,thereby being responsible for higher sedimentation rates.Phytoplankton chlorophyll-a displayed seasonality, withpeaks in late summer, when macrophyte activity was decreasing.No relationship between either chlorophyll-a and nutrients or hydrological conditions could be ascertained formost sampling stations and years of study. However, the waterlevel-dependent, emergent macrophyte sawgrass (Cladium mariscus) presented a statistically significant relationship with both nitrogen and phosphorus. Our results demonstrate thatmacrophytes must be taken into account in wetland eutrophicationmodels. A conceptual model comparing the responses of primary producers to eutrophication in lakes and wetlands is outlined. © Kluwer Academic Publishers 2001
abstract_unstemmed	Abstract A three-year study was carried out in Las Tablas de Daimiel National Park, a Spanish semi-arid wetland, to describe eutrophication patterns and the responses of the main primaryproducers in contrasting inundation years. Total and dissolved nitrogen and phosphorus, phytoplankton chlorophyll-a(monthly) and emergent macrophyte cover (yearly) were measured together with water levels. Water balances were taken to assessphosphorus and nitrogen annual nutrient budgets. The wetland could be termed hypertrophic. Nutrients displayed distinct seasonality because nitrogen peaked both in winter and summer,whereas phosphorus did so in late spring and early summer. A reduction in both total nitrogen and phosphorus in humid yearsdue to higher water levels was also observed. An important spatial heterogeneity in nutrient content occurred throughout the study, part of which could be ascribed to hydrological fluctuations since the input site showed higher mean values in rainy years. Mass balances suggested that sedimentation played a key role in nutrient dynamics, with macrophyte leaching and waterfowl additions being minor sources. Internalloading was much higher than external loading in this wetland,thereby being responsible for higher sedimentation rates.Phytoplankton chlorophyll-a displayed seasonality, withpeaks in late summer, when macrophyte activity was decreasing.No relationship between either chlorophyll-a and nutrients or hydrological conditions could be ascertained formost sampling stations and years of study. However, the waterlevel-dependent, emergent macrophyte sawgrass (Cladium mariscus) presented a statistically significant relationship with both nitrogen and phosphorus. Our results demonstrate thatmacrophytes must be taken into account in wetland eutrophicationmodels. A conceptual model comparing the responses of primary producers to eutrophication in lakes and wetlands is outlined. © Kluwer Academic Publishers 2001
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title_short	Nutrient Dynamics and Eutrophication Patterns in a Semi-Arid Wetland: The Effects of Fluctuating Hydrology
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