Pastures Degradation and the Relation with Pedo-Geomorphological Attributes in Watershed
ABSTRACT The objective of this study was to map the levels of degradation of pastures and its association with chemical properties of the soil and relief. We selected a sub-basin located in the municipality of Viçosa, Minas Gerais, and we mapped the degradations through Ikonos images that were submi...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Cristiano Marcelo Pereira de Souza [verfasserIn] Marcio Rocha Francelino [verfasserIn] Liovando Marciano da Costa [verfasserIn] Elpidio Inacio Fernandes Filho [verfasserIn] |
|---|
| Format: |
E-Artikel |
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| Sprache: |
Englisch ; Portugiesisch |
| Schlagwörter: |
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| Übergeordnetes Werk: |
In: Floresta e Ambiente - Universidade Federal Rural do Rio de Janeiro, 2016 |
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| Links: |
|---|
| DOI / URN: |
10.1590/2179-8087.061617 |
|---|
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DOAJ073734357 |
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Pastures Degradation and the Relation with Pedo-Geomorphological Attributes in Watershed |
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ABSTRACT The objective of this study was to map the levels of degradation of pastures and its association with chemical properties of the soil and relief. We selected a sub-basin located in the municipality of Viçosa, Minas Gerais, and we mapped the degradations through Ikonos images that were submitted for classification. Soil samples were collected and analyzed chemically; the results were transformed in spatial data using cokriging, based on variables of the digital elevation model. We associated the maps (cokriging) with data from exposure of the hillside, levels of solar radiation and levels of the pastures’ degradation. The pastures were mainly classified in moderate (44%) and very strong (30%) degradation levels. The areas with mild degradation tend to increase when there is a higher sum of bases, cationic exchange capacity and organic matter. The portions facing North and the increase of solar radiation showed more advanced stages of degradation. |
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ABSTRACT The objective of this study was to map the levels of degradation of pastures and its association with chemical properties of the soil and relief. We selected a sub-basin located in the municipality of Viçosa, Minas Gerais, and we mapped the degradations through Ikonos images that were submitted for classification. Soil samples were collected and analyzed chemically; the results were transformed in spatial data using cokriging, based on variables of the digital elevation model. We associated the maps (cokriging) with data from exposure of the hillside, levels of solar radiation and levels of the pastures’ degradation. The pastures were mainly classified in moderate (44%) and very strong (30%) degradation levels. The areas with mild degradation tend to increase when there is a higher sum of bases, cationic exchange capacity and organic matter. The portions facing North and the increase of solar radiation showed more advanced stages of degradation. |
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ABSTRACT The objective of this study was to map the levels of degradation of pastures and its association with chemical properties of the soil and relief. We selected a sub-basin located in the municipality of Viçosa, Minas Gerais, and we mapped the degradations through Ikonos images that were submitted for classification. Soil samples were collected and analyzed chemically; the results were transformed in spatial data using cokriging, based on variables of the digital elevation model. We associated the maps (cokriging) with data from exposure of the hillside, levels of solar radiation and levels of the pastures’ degradation. The pastures were mainly classified in moderate (44%) and very strong (30%) degradation levels. The areas with mild degradation tend to increase when there is a higher sum of bases, cationic exchange capacity and organic matter. The portions facing North and the increase of solar radiation showed more advanced stages of degradation. |
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Marcio Rocha Francelino Liovando Marciano da Costa Elpidio Inacio Fernandes Filho |
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Marcio Rocha Francelino Liovando Marciano da Costa Elpidio Inacio Fernandes Filho |
| ppnlink |
1040433499 |
| callnumber-subject |
SD - Forestry |
| mediatype_str_mv |
c |
| isOA_txt |
true |
| hochschulschrift_bool |
false |
| doi_str |
10.1590/2179-8087.061617 |
| callnumber-a |
SD1-669.5 |
| up_date |
2024-07-03T19:20:29.567Z |
| _version_ |
1803586822026035200 |
| fullrecord_marcxml |
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7.399748 |