Deep soil carbon pool responses to climate change in the Chinese Loess Plateau  

黄土高原深层土壤碳库对气候变化的响应

作　　者：Guangyao Gao Binbin Li Karl J.Niklas Yuanyuan Huang Mingxiang Xu Guobin Liu Bojie Fu 高光耀;李彬彬;Karl J.Niklas;黄元元;许明祥;刘国彬;傅伯杰

机构地区：[1]State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China [2]College of Soil and Water Conservation Science and Engineering,Northwest A&F University,Yangling 712100,China [3]School of Integrative Plant Science,Cornell University,Ithaca,NY 14853,USA [4]Key Laboratory of Ecosystem Network Observation and Modeling,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China [5]National Observation and Research Station of Earth Critical Zone on the Loess Plateau in Shaanxi,Xi’an 710061,China [6]University of Chinese Academy of Sciences,Beijing 100049,China [7]Shaanxi Yan'an Forest Ecosystem Observation and Research Station,Beijing 100085,China

出　　处：《Science Bulletin》2025年第4期504-507,共4页科学通报(英文版)

基　　金：supported by the National Natural Science Foundation of China(41991230,U2243231,and 42201099);the Youth Innovation Promotion Association CAS(Y202013).

摘　　要：Soil carbon(C)reservoirs,encompassing both organic(SOC)and inorganic(SIC)forms,represent the largest terrestrial carbon sink,surpassing the carbon stored in vegetation and the atmosphere combined[1].In light of the pressing concerns surrounding global warming and its cascading effects on climate dynamics,the scientific community has devoted significant attention to delineating the quantity,typology,and spatial distribution of soil C[2],[3].While research efforts have predominantly concentrated on SOC,given its substantial contribution to soil C content compared with SIC,it is important to recognize that SIC also plays a significant role,particularly in deeper soil horizons[4].Notably,in arid and semi-arid regions,which encompass approximately 41%of the Earth’s terrestrial surface,SIC is the dominant form of soil C[5],[6],with SIC pools in both top and deep soils exceeding SOC by factors ranging from 2 to 10[7].Consequently,there is a critical imperative to accurately quantify both SOC and SIC stocks across various soil depths in these water-limited regions[7].

关 键 词：SOIL CARBON PLATEAU 

分 类 号：S15[农业科学—土壤学]