{"id":"c6d5c6f2-e80a-4e6f-bf79-2986c64e8266","title":"青藏高原农牧区人类活动强度1km网格数据集（1990-2015）","title_en":"1 km grid datasets of human activity intensity in agricultural and pastoral areas of the Qinghai-Tibet Plateau","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：每期人类活动强度数据以TIFF格式存储，文件的名称为“yyyy.tif”，其中yyyy代表年。 数据读取方式：数据可使用ArcGIS, QGIS, ENVI, and ERDAS等软件打开。","description":"作为世界的“第三极”，青藏高原的生态敏感性和脆弱性极高，同时面临人类活动和放牧活动加剧。在本研究中，人类活动强度评估首先选取8个反映人类活动强度的因子，包括放牧强度，夜间灯光指数，人口密度，国内生产总值（GDP）密度，耕地比例，归一化植被指数（NDVI）的变化率，距离道路的距离以及距离居民点的距离，然后采用熵权法确定各因子的权重，最后通过空间叠置法获得1990、1995、2000、2005、2010和2015年共6期青藏高原农牧区人类活动强度数据集。通过人类活动强度空间数据集的制备，我们的研究将有助于探索人类干扰对青藏高原高寒生态系统的影响，并在区域生态系统管理和可持续发展方面为政府决策提供有效支持。","doi":"http://www.dx.doi.org/10.11922/sciencedb.00171","projection":"Albers","language":"zh","share_type":"protected","east":104.67,"west":73.45,"south":25.99,"north":39.83,"scale":null,"crs":null,"filesize":63.6,"share_policy":"c","ts_created":"2021-01-12T09:05:08.012989+08:00","doi_type":"沿用数据已有DOI","ts_updated":"2021-05-14T11:40:59.503411+08:00","time_description":"1990-2015","datas_group":0,"time_description_en":"1990-2015","data_format":null,"project":[11],"specials":["b6500306-f60b-4aa1-b0b6-0324d94866df"],"cite":null,"review_status":5,"review_invite":[{"user_name":"黄庆旭","username":"黄庆旭","email":"qxhuang@bnu.edu.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 4.0 International (CC BY 4.0)","fund":[21],"subtopics":{"metadata":"c6d5c6f2-e80a-4e6f-bf79-2986c64e8266","three_pole":null,"third_pole":null},"username":"刘焱序","review_time":null,"protected_duration":12,"protected_describe":null,"is_important":false,"hit_count":1772}