{"id":"588a356c-89f6-441f-93dd-d4b1dff318e0","title":"中亚大湖区基础数据集-土壤（2015）","title_en":"Basic dataset of soil over the Great Lakes in Central Asia - Soil (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":"命名规则：mid-asia. 数据类型\n使用方法：解压后，直接在arcgis中打开 mid-asia. soil文件，格式为：tif","description":"土壤是岩石经过风化作用形成的不同大小的矿物颗粒。土壤不仅仅为作物提供养分和水分,同时也对各种养分有转化作用。此外，土壤还有自净功能，可以改良有机物含量、土壤温湿度、pH值、阴阳离子。而土壤污染导致几个方面的环境问题：工业污水, .酸雨, 尾气排放, 堆积物, 农业污染。土地受到污染后，含重金属浓度较高的污染表土容易在风力和水力的作用下分别进入到大气和水体中，导致大气污染、地表水污染、地下水污染和生态系统退化等其他次生生态环境问题。该数据集来源于联合国粮农组织（FAO）和维也纳国际应用系统研究所(IIASA)所构建的世界土壤数据库(Harmonized World Soil Database version 1.1 )(HWSD)，该数据为建模者提供模型输入参数，同时为生态农业分区,粮食安全和气候变化等研究提供依据。","doi":"","projection":"WGS84","language":"zh","share_type":"offline","east":87.31,"west":46.49,"south":35.14,"north":55.45,"scale":null,"crs":null,"filesize":45.1,"share_policy":"c","ts_created":"2019-01-12T20:31:58.975252+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-04-19T09:28:20.961502+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"李建轩","username":"liujin834@live.com","email":"liujin834@live.com","is_cancel_expert":true},{"user_name":"秦军","username":"秦军","email":"shuairenqin@itpcas.ac.cn","is_cancel_expert":true},{"user_name":"冯金良","username":"冯金良","email":"fengjl@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":"","temporal_resolution":"Yearly","spatial_resolution":"10km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"588a356c-89f6-441f-93dd-d4b1dff318e0","three_pole":null,"third_pole":"XDA20060303"},"username":"XDA20060303","review_time":"2019-06-23T16:01:57.653476+08:00","protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":2026}