2005-2020年中国西北干旱区典型生态系统土壤有机碳密度数据集  

A dataset of soil organic carbon density of typical ecosystems in the arid areas of Northwest China from 2005 to 2020

作　　者：苏文[1] 郭学兵[1] 初玉[2] 樊博 姬洪飞[4] 兰中东[5] 李国振[6] 李小军 罗永清 热普开提[9] 王小亮 吴瑞俊[11] 杨荣 SU Wen;GUO Xuebing;CHU Yu;FAN Bo;JI Hongfei;LAN Zhongdong;LI Guozhen;LI Xiaojun;LUO Yongqing;RAPKIT;WANG Xiaoliang;WU Ruijun;YANG Rong(Key Laboratory of Ecosystem Network Observation and Modeling,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,P.R.China;Ordos Station,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,P.R.China;Haibei Station,Northwest Institute of Plateau Biology,Chinese Academy of Sciences,Xining 810008,P.R.China;Changwu Station,Institute of Soil and Water Conservation,Chinese Academy of Sciences&Ministry of Water Resources,Yangling 712100,P.R.China;Fukang Station,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,P.R.China;Akesu Station,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,P.R.China;Sapotou Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,P.R.China;Naiman Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,P.R.China;Cele Station,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,P.R.China;Inner Mongolia Station,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,P.R.China;Ansai Station,Institute of Soil and Water Conservation,Chinese Academy of Sciences&Ministry of Water Resources,Yangling 712100,P.R.China;Linze Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,P.R.China)

机构地区：[1]中国科学院地理科学与资源研究所,生态系统网络观测与模拟重点实验室,北京100101 [2]中国科学院植物研究所,鄂尔多斯站,北京100093 [3]中国科学院西北高原生物研究所,海北站,西宁810008 [4]中国科学院水利部水土保持研究所,长武站,陕西杨凌712100 [5]中国科学院新疆生态与地理研究所,阜康站,乌鲁木齐830011 [6]中国科学院新疆生态与地理研究所,阿克苏站,乌鲁木齐830011 [7]中国科学院西北生态环境资源研究院,沙坡头站,兰州730000 [8]中国科学院西北生态环境资源研究院,奈曼站,兰州730000 [9]中国科学院新疆生态与地理研究所,策勒站,乌鲁木齐830011 [10]中国科学院植物研究所,内蒙古站,北京100093 [11]中国科学院水利部水土保持研究所,安塞站,陕西杨凌712100 [12]中国科学院西北生态环境资源研究院,临泽站,兰州730000

出　　处：《中国科学数据（中英文网络版）》2024年第3期36-49,共14页China Scientific Data

基　　金：国家重点研发计划(2019YFE0126500)。

摘　　要：土壤有机碳库是陆地生态系统碳库中最大、最为活跃的部分,在全球碳循环过程和全球气候变化中起着重要的作用。中国西北旱区位于欧亚大陆的腹地,生态系统极其脆弱,对气候变化的响应也极为敏感,是近年来众多学者关注的热点地区,土壤有机碳储量估算以及空间分布特征日益成为该区域的研究焦点之一,但是数据共享不足与实测数据相对缺乏是造成研究结果不确定性的重要因素。在收集中国生态系统研究网络(CERN)位于中国西北六省区的农田、荒漠、草地生态系统野外科学观测研究站土壤长期观测数据的基础上,通过筛选、质量控制后,采用有机碳估算模型计算生成了中国西北干旱区典型生态系统土壤有机碳密度数据集。本数据集涵盖了11个站点2005-2020年各类长期观测样地的表层(0-20 cm)和剖面分层土壤有机碳密度数据,以期为中国西北干旱区土壤碳储量估算和碳循环过程研究提供有价值的实测数据。As the largest and most active part of the terrestrial ecosystem carbon pool,the soil organic carbon pool plays an important role in the global carbon cycle and global climate change.The arid areas in Northwest China,located in the hinterland of Eurasia,are characteristic of extremely fragile ecosystems that exhibit highly sensitive responses to climate change.These areas have become a focal point of interest for many scholars in recent years.The estimation and spatial distribution of soil organic carbon storage have increasingly become a key research focus.However,a scarcity of shared data and measured data contribute significantly to the uncertainty in research findings.Based on the long-term soil observation data collected from the ecological field stations of the China Ecosystem Research Network(CERN)located in five provinces and regions of northwest China,we produced a dataset of soil organic carbon density of typical ecosystems in the arid areas of Northwest China using the organic carbon estimation model.This dataset contains the soil organic carbon density data of topsoil(0-20 cm)and soil profile of various long-term observation plots at 11 ecological field stations from 2005 to 2020,so as to provide valuable measured data for the estimation of soil carbon storage and the study of carbon cycle process in the arid area of Northwest China.

关 键 词：中国西北干旱区 典型生态系统 土壤有机碳密度 土壤观测 生态站 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论] S153.6[自动化与计算机技术—计算机科学与技术]