{"id":"bca97809-e13d-4432-9120-fcf8a00a3701","title":"张掖市叶面积指数（基于半球图像）连续观测数据集（2019-2021）","title_en":"Continuous observation data set of leaf area index (based on hemispheric image) in Zhangye City (2019-2021)","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":"数据以图片jpg格式存储，文件的名称为“yyyy,.mmm.ddd.jpg”，其中yyyy代表年，mmm代表月份。ddd代表日期，","description":"叶面积指数，是生态系统的一个重要结构参数，用来反映植物叶面数量、冠层结构变化、植物群落生命活力及其环境效应，为植物冠层表面物质和能量交换的描述提供结构化的定量信息，并在生态系统碳积累、植被生产力和土壤、植物、大气间相互作用的能量平衡，植被遥感等方面起重要作用。数据来源于项目自主研发的分布式叶面积指数仪（基于半球图像），定时、定点、自下向上拍摄林冠的半球图像，并通过无线网络上传。本数据采集为原始的半球图像，需进一步处理才可计算叶面积指数，可使用Hemiview等软件处理。","doi":"10.11888/Ecolo.tpdc.271779","projection":"","language":"zh","share_type":"protected","east":99.98,"west":99.73,"south":38.33,"north":38.5,"scale":null,"crs":null,"filesize":2600.0,"share_policy":"a","ts_created":"2021-10-29T02:04:56.102798+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-11-01T10:51:33.754235+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"郭群","username":"guoq@igsnrr.ac.cn","email":"guoq@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":"--","spatial_resolution":"--","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[667],"subtopics":{"metadata":"bca97809-e13d-4432-9120-fcf8a00a3701","three_pole":null,"third_pole":null},"username":"陈世苹","review_time":null,"protected_duration":24,"protected_describe":null,"is_important":false,"hit_count":410}