{"id":"25f71b90-ec05-447b-8982-63eeb0ff0d8a","title":"金佛山不同土地利用类型土壤理化性质数据集","title_en":"Regional Rock Desertification Groundwater Hydrochemical Evolution Database from 2017 to 2022","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":"数据命名格式：\n命名规则为“YYYY.DDD.csv”，其中YYYY代表年份，DDD代表一年某一天。","description":"本数据集的观测生产过程严格遵循土壤理化性质检测规范，聚焦金佛山区域，围绕砂岩、碳酸盐岩两种不同母岩，以及其上发育的林地、灌丛、旱耕地三种土地利用类型，系统开展土壤样品采集与多指标检测，确保数据精准完整。生产前期，工作人员结合母岩分布及土地利用类型差异，科学布设采样点位，兼顾不同区域代表性，采用标准化方法分层采集土壤样品，采集后及时封装、标记，严格避免样品污染、失水，保障样品理化性质稳定。后续将样品送至专业实验室，按规范流程系统测定多项核心指标，包括土壤含水量（WC）、容重(BD)、pH、总有机碳（OC）、全氮（TN）、速效氮（AN）、全磷（TP）、速效磷（AP）、全钾（TK）、速效钾（AK）。","doi":"","projection":"WGS84","language":"zh","share_type":"offline","east":110.2,"west":97.3,"south":21.1,"north":34.4,"scale":null,"crs":null,"filesize":1.0,"share_policy":"c","ts_created":"2026-04-16T15:22:26.812085+08:00","doi_type":"拥有自主知识产权","ts_updated":"2026-04-16T16:33:22.890506+08:00","time_description":"100万年来","datas_group":3,"time_description_en":"","data_format":null,"project":[10],"specials":[],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"1000 year < x","spatial_resolution":"1km - 10km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"25f71b90-ec05-447b-8982-63eeb0ff0d8a","three_pole":null,"third_pole":null},"username":"weber","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":15}