2005–2015年中国生态系统研究网络农田生态系统生态站表层土壤有机碳密度数据集  

A dataset of topsoil organic carbon density for agricultural ecosystem field stations of Chinese Ecosystem Research Network(2005-2015)

作　　者：苏文[1] 陈春兰[2] 党廷辉[3] 樊月玲[4] 郝翔翔[5] 何永涛[6] 况福虹[7] 兰中东[8] 李国振[8] 李小军 李小丽 李玉强 热甫开提[8] 苏永中 田振荣[6] 王书伟[10] 吴瑞俊 杨风亭 张玉铭[11] 宗海宏[10] Su Wen;Chen Chunlan;Dang Tinghui;Fan Yueling;Hao Xiangxiang;He Yongtao;Kuang Fuhong;Lan Zhongdong;Li Guozhen;Li Xiaojun;Li Xiaoli;Li Yuqiang;Refkat;Su Yongzhong;Tian Zhenrong;Wang Shuwei;Wu Ruijun;Yang Fengting;Zhang Yuming;Zong Haihong(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;Institute of Subtropical Agriculture,Chinese Academy of Sciences;Institute of Soil and Water Conservation,Chinese Academy of Sciences&Ministry of Water Resources;Institute of Applied Ecology,Chinese Academy of Sciences;Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences;Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences;Institute of Mountain Hazards and Environment,Chinese Academy of Sciences&Ministry of Water Resources;Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences;Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences;Institute of Soil Science,Chinese Academy of Sciences;Institute of Genetics and Developmental Biology,Chinese Academy of Sciences)

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]中国科学院亚热带农业生态研究所 [3]中国科学院水利部水土保持研究所 [4]中国科学院沈阳应用生态研究所 [5]中国科学院东北地理与农业生态研究所 [6]中国科学院地理科学与资源研究所 [7]中国科学院成都山地灾害与环境研究所 [8]中国科学院新疆生态与地理研究所 [9]中国科学院西北生态环境资源研究院 [10]中国科学院南京土壤研究所 [11]中国科学院遗传与发育生物学研究所

出　　处：《中国科学数据（中英文网络版）》2020年第1期52-64,共13页China Scientific Data

基　　金：国家重点研发计划(2017YFC0503803).

摘　　要：耕地有机碳是农田土壤碳库的重要组成部分。中国耕地土壤分布广泛,土壤的区域异质性高,利用方式和种植制度复杂多样,因此研究耕地有机碳及储量的变化规律,摸清耕地土壤的固碳能力,认识耕地固碳与生产力保持的耦合机制,对中国来讲尤其重要。国内很多学者利用全国第二次土壤普查数据、文献报道的数据开展相关研究,但总体上看,系统的、长期的耕地土壤观测与试验数据相对缺乏。本数据集利用中国生态系统研究网络19个涵盖不同农田生态系统的生态站多年系统的表层土壤理化性质实测数据,结合有机碳估算模型,计算出2005–2015年来中国主要农田生态系统生态站的表层土壤有机碳密度,可以为更准确地估算中国农田耕层土壤有机碳储量、研究其空间分布特征提供数据基础。Soil organic carbon in cultivated land is an important component of farmland soil carbon pool.Because of wide distribution and high soil heterogeneity of the cultivated land in China,the land use patterns and planting systems are complex and diverse.It is particularly important for China to study the changes of organic carbon and its storage in cultivated land,to figure out the carbon sequestration capacity of cultivated land,and to understand the coupling mechanism between carbon sequestration and productivity maintenance of cultivated land.A number of Chinese scholars use the data of the second national soil survey and the data reported in the literature to carry out relevant research,but generally speaking,systematic and long-term observational and experimental data of cultivated land soil are relatively scarce.This dataset calculates the topsoil organic carbon density of ecological stations covering main agricultural ecosystems in China from 2005 to 2015 based on the estimation model of organic carbon as well as the measured data of physical and chemical properties of topsoil from 19 China Ecosystem Research Network(CERN)agricultural stations.It can serve as the basis for estimating more accurately the soil organic carbon storage and studying its spatial distribution characteristics of farmland in China.

关 键 词：表层土壤有机碳密度 农田生态系统 中国生态系统研究网络 长期观测 

分 类 号：G250.74[文化科学—图书馆学] S153.6[农业科学—土壤学]