[1]WANG Yao,CAI Yun-long,PAN Mao.Analysis on the Relationship between Soil Erosion and Land Use in Wujiang River Basin in Guizhou Province[J].Research of Soil and Water Conservation,2013,20(03):11-18.
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Analysis on the Relationship between Soil Erosion and Land Use in Wujiang River Basin in Guizhou Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 03
Page number:
11-18
Column:
Public date:
2013-06-28
- Title:
- Analysis on the Relationship between Soil Erosion and Land Use in Wujiang River Basin in Guizhou Province
- CLC:
- S157.1;F301.24
- DOI:
- -
- Abstract:
- Based on 15 remote sensing images and relevant image processing techniques, and statistic methods, the spatial-temporal characteristics of land use change in Wujiang River Basin, Guizhou Province during the period of 1980—2000 was analyzed. The images involved the Multispectral Scanner (MSS) data acquired around 1980, Landsat-ETM data around 2000, soil erosion data acquired in 2000, GIMMS/AVHRR NDVI data acquired in 2000. The results show that forest land, farm land and grassland were the main land use types in WRB. There was an obvious good change in land use in the study area during 1980—2000. Analysis on the relationship between soil erosion and land use suggests that different land use types had different degrees of soil erosion, i.e. barren land < other land < onstruction land < forest land < water area < paddy field < grassland with low coverage < shrub land < grassland with high coverage < open forest land < grassland with medium coverage < dry land. Among these land use types, dry land, grassland with medium coverage and open forest land were mostly frequently accompanied with soil erosion. All types of soil erosion concentrate on areas with vegetation coverage of 50%~60%. When the vegetation coverage fell to 50%~60%, the most serious soil erosion happened, which was different with the situation in non-karst areas where soil erosion intensified along with the degradation of vegetation.
- References:
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1900-01-01