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- W170360186 abstract "Loess Plateau in China is well known for its unique landscape and severe soil erosion. To meet the need of decision-makers, Soil and Water Conservation Monitoring Information System (SWCMIS) was developed, which is oriented to supply the data on the current situation of soil and water erosion and appropriate decision-making models of soil conservation for this region. The system consists of two parts: database of soil erosion and conservation including data collection and processing; and knowledge library including models involved. The Multi-level Remote Sensing Monitoring Information System in the Loess Plateau, as the sub-system of data-collection, consists of 3 levels. Soil erosion is a very complex process and it is affected by many factors, such as climate, landform, soil, vegetation and human activities. Therefore it is necessary to integrate remotely sensed data and other data, such as, DEM, observed data, the fluvial sediments and runoff plot data, as well as social economy. Based on the database and results of related researches a model of soil erosion evaluation at regional scale was developed. It is exponential function correlation erosive ability with rainfall in rain-season, gully density, ration of slope-land, content of soil particle (>0.25 mm), and vegetation cover. The main procedures of model developing include to making base-map by overlaying maps of main factors mentioned above, to extract parameters from remote sensing data and thematic maps or observing data, to establish a statistical regression model and to evaluate and predict the regional situation of soil and water conservation on the Loess plateau. Multi-correlative modulus R=0.9369, F=2984.64>>F0.05=2.21. The relativity is very remarkable." @default.
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- W170360186 date "2007-01-01" @default.
- W170360186 modified "2023-09-25" @default.
- W170360186 title "Regional monitoring and evaluation of soil and water conservation - a case study on Loess Plateau, China." @default.
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