{"id":"6613e6b8-9fca-45d0-99f1-36c9beed7ae4","title":"泛第三极65国1km分辨率土壤侵蚀强度数据集（2015）","title_en":"Dataset of soil  erosion intensity with 1km resolution in  Pan-TEP 65 countries (2015)","serial":"","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":"XDA200402022-CSLE_65G_A.tif：表示泛第三极65国区域土壤侵蚀强度栅格数据，其中XDA20040202是子课题编号，2是子子课题编号，CSLE是中国土壤流失方程，65G代表65个国家；Geotiff格式，可以采用ArcGIS打开查看和分析.","description":"1）数据内容包含泛第三极65国区域土壤侵蚀强度栅格数据。2）土壤侵蚀强度数据采用中国土壤侵蚀预报模型（CSLE）计算获取。土壤侵蚀预报模型公式中包含降雨侵蚀力因子、土壤可蚀性因子、坡长因子、坡度因子、植被覆盖与生物措施因子、工程措施因子、耕作措施因子。65国降雨侵蚀力因子由美国气候预测中心(CPC)发布的日降雨量产品计算获得；土壤可蚀性因子采用250mSoilGrid网格土壤数据计算；耕作措施因子利用植被覆盖度结合土地利用和降雨侵蚀力比例计算；工程措施初稿暂未考虑，暂时取值为1；坡长因子、坡度因子通过30m高程数据计算后重采样得到；植被覆盖与生物措施因子由植被覆盖度结合土地利用数据和降雨侵蚀力比例计算得出，其中植被覆盖度是由MODIS的植被指数产品通过像元二分法计算得到。3）通过和同年同区域已有土壤侵蚀强度数据对比，无明显差异，数据质量良好。4）土壤侵蚀强度数据对研究泛第三极65国土壤侵蚀现状，更好的贯彻“一带一路”发展政策具有重要的意义。","doi":"10.11888/Disas.tpdc.270222","projection":"WGS84","language":"zh","share_type":"online","east":180.0,"west":0.0,"south":-10.0,"north":82.0,"scale":null,"crs":null,"filesize":839.0,"share_policy":"a","ts_created":"2019-07-28T02:03:26.714113+08:00","doi_type":"","ts_updated":"2021-04-19T20:38:12.319117+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"吴锋","username":"simlab3825","email":"wufeng@igsnrr.ac.cn","is_cancel_expert":false},{"user_name":"何思明","username":"何思明","email":"hsm@imde.ac.cn","is_cancel_expert":false}],"review_editor":{"id":21054,"last_login":"2022-04-10T10:49:12.540341+08:00","username":"tingting","email":"panxd@itpcas.ac.cn","is_active":true,"is_staff":true,"user_name":"潘小多"},"data_sources":"","temporal_resolution":"Yearly","spatial_resolution":"km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"6613e6b8-9fca-45d0-99f1-36c9beed7ae4","three_pole":null,"third_pole":"XDA20040202"},"username":"XDA20040202","review_time":"2019-07-31T08:33:24.038710+08:00","protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":3280}