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云南省公里格网植被保持土壤肥力氮、磷、钾价值量数据(2000)

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国家地球系统科学数据中心2017-03-08 更新2024-03-04 收录
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https://www.geodata.cn/data/datadetails.html?dataguid=225788708614262&docId=30116
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包含云南省2000年公里格网植被生态系统保持土壤肥力氮、磷、钾价值量,空间分辨率为1km,时间分辨率为年。将降水数据经过降水降尺度处理,数据分辨率为1km。基于arcgis工具利用DEM提取坡长、坡度因子,基于三峡库区中部涪陵区的径流小区观测得到的降雨侵蚀力回归模型计算降雨侵蚀力,通过土壤类型提取土壤可蚀性因子等,在arcigis10.2工具箱里,使用栅格计算器计算得到

This dataset contains the monetary value of soil fertility conservation (covering "nitrogen, phosphorus, and potassium") provided by vegetation ecosystems across Yunnan Province in 2000, presented as a 1-kilometer spatial grid with a spatial resolution of 1 km and an annual temporal resolution. Precipitation data was processed using precipitation downscaling to achieve a spatial resolution of 1 km. Slope length and slope steepness factors were extracted from a Digital Elevation Model (DEM) via ArcGIS tools. Rainfall erosivity was calculated using a regression model for rainfall erosivity developed from runoff plot observations conducted in Fuling District, central Three Gorges Reservoir Area. Soil erodibility factors were extracted based on soil type datasets. Finally, the complete dataset was generated using the Raster Calculator tool within the ArcGIS 10.2 toolbox.
提供机构:
重庆师范大学
创建时间:
2016-10-25
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