{"id":"15ecb5d0-2deb-489d-9d79-4cec2b01ca28","title":"咸海流域种植结构数据集（2019）","title_en":"A dataset of planting structure in the Aral Sea basin (2019)","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":"文件命名：将咸海流域分为了锡尔河和阿姆河两个子流域，又将每个子流域分成了不同的灌区，文件名称为“nukus.shp”表示为nukus灌区的种植结构情况。\n数据读取方式：该数据集中的所有.shp文件可以直接用ArcGIS打开，所显示的shp文件就是该数据的图形表达。","description":"数据内容：咸海流域2019年种植结构数据集。\n数据来源及加工方法：将2019年分为三个时间段，将每个时间段内云量最少，质量最高的哨兵2号数据拼接为一张完整地图，得到咸海流域三期哨兵2号遥感影像，并求出三期影像的NDVI值，再结合得到的耕地数据和实地采样数据，用随机森林算法对其分类，最终得到每个地块上的种植结构类型。\n数据质量：空间分辨率为10m×10m，时间分辨率为年，Kappa系数0.8。\n数据应用成果：可用于农作物产量估算和水资源利用效率计算。","doi":"10.11888/Ecolo.tpdc.271186","projection":null,"language":"zh","share_type":"online","east":78.21,"west":53.37,"south":33.48,"north":47.12,"scale":null,"crs":null,"filesize":449.0,"share_policy":"a","ts_created":"2021-02-09T19:21:28.791059+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-19T10:32:42.855533+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"张扬建","username":"naqu3228","email":"zhangyj@igsnrr.ac.cn","is_cancel_expert":true},{"user_name":"冯敏","username":"mfeng","email":"mfeng@itpcas.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":"1m - 10m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"15ecb5d0-2deb-489d-9d79-4cec2b01ca28","three_pole":null,"third_pole":"XDA20060303"},"username":"XDA20060303","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":888}