{"id":"e70c9b51-7e69-404c-b423-b142fd4292d0","title":"青藏高原农业适宜性与分级图（2018）","title_en":"Grading map of agricultural suitability on the Tibet Plateau (2018)","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":"栅格形式，可以用ArcGis打开查看和分析.","description":"本研究以青藏高原范围内土地资源为评价对象，阐明区域内适宜于农、林、牧业生产的现状及其后备土地资源数量、质量及其分布情况。通过实地调查，收集整理研究区域的相关数据，结合相关文献和专家经验确定评价因子（海拔、坡度、年降水量、积温、日照时数、土壤有效深度、质地、侵蚀强度、植被类型、NDVI）并对其分等定级和标准化，通过主成分分析法确定各评价因子的权重，采用加权指数和模型确定评价单元总分值，最后用ArcGis自然间断点分级法得出青藏高原宜农、宜林以及宜牧用地的适宜等级，输出90m分辨率的青藏高原农业适宜性图纸，并对结果校验分析。","doi":"10.11888/Socioeco.tpdc.270483","projection":"Albers","language":"zh","share_type":"online","east":104.0,"west":74.0,"south":25.0,"north":40.0,"scale":null,"crs":null,"filesize":71.2,"share_policy":"a","ts_created":"2019-01-25T01:02:25.567925+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-09-22T09:48:44.653032+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":"吴锋","username":"simlab3825","email":"wufeng@igsnrr.ac.cn","is_cancel_expert":false}],"review_editor":null,"data_sources":"","temporal_resolution":"10 year < x < 100 year","spatial_resolution":"km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"e70c9b51-7e69-404c-b423-b142fd4292d0","three_pole":null,"third_pole":"XDA20040301"},"username":"XDA20040301","review_time":"2019-01-25T01:15:04.346511+08:00","protected_duration":0,"protected_describe":"","is_important":false,"hit_count":3607}