{"id":"b0a84976-8bf2-4286-a835-85f34c1b279e","title":"重点区域20国300米分辨率植被覆盖与生物措施B因子数据集（2014-2016）","title_en":"Dataset of vegetation coverage and biological measure factor B with 300 m resoluton in 20 countries in key regions（2014-2016）","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-G20Bzip：其中XDA20040202是子课题编号，2是子子课题编号，G20表示20国，B表示水土保持生物措施，数据为Geotiff格式，可以采用ArcGIS打开查看和分析.","description":"1）数据内容包含重点区域20国植被覆盖与生物措施因子B栅格数据，空间分辨率为300米。2）基础数据源为2014~2016年的MODIS MOD13Q1产品，空间分辨率250m，据此计算得到3年平均的24个半月植被覆盖度栅格数据，然后按地类计算土壤流失比例，进一步利用24个半月的降雨侵蚀力进行加权平均，得到植被覆盖与生物措施B因子栅格图。3）MOD13Q1遥感植被数据侧重进行了去云预处理，计算的B因子按地类进行统计并进行合理性分析，最终取得的数据质量良好。4）植被覆盖与生物措施B因子反映了地表土地利用/植被覆盖对土壤侵蚀的影响，对重点区域20国的土壤侵蚀模拟及其空间格局分析具有重要意义。","doi":"10.11888/Soil.tpdc.271738","projection":"WGS84","language":"zh","share_type":"online","east":48.0,"west":135.0,"south":0.0,"north":52.0,"scale":null,"crs":null,"filesize":527.0,"share_policy":"a","ts_created":"2021-10-03T11:20:26.938809+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-10-11T10:28:37.908134+08:00","time_description":"2014-2016","datas_group":0,"time_description_en":"2014-2016","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"方海燕","username":"fanghy@igsnrr.ac.cn","email":"fanghy@igsnrr.ac.cn","is_cancel_expert":false}],"review_editor":{"id":42421,"last_login":"2022-04-08T15:16:51.670544+08:00","username":"任慧霞","email":"510727846@qq.com","is_active":true,"is_staff":true,"user_name":"任慧霞"},"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"b0a84976-8bf2-4286-a835-85f34c1b279e","three_pole":null,"third_pole":"XDA20040202"},"username":"XDA20040202","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":562}