Drying-rewetting rather than sieving stimulates soil respiration  

作　　者：Junjie LIN Weixin CHENG Shuai ZHANG Biao ZHU 

机构地区：[1]Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir,Chongqing Three Gorges University,Chongqing 404100,China [2]Department of Environmental Studies,University of California,Santa Cruz CA 95064,USA [3]Institute of Ecology,College of Urban and Environmental Sciences,Key Laboratory for Earth Surface Processes of the Ministry of Education,Peking University,Beijing 100871,China

出　　处：《Pedosphere》2022年第2期359-363,共5页土壤圈（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 31770529, 31971528, and 31988102);the Program of Chongqing Science and Technology Commission, China (No. cstc2020jcyj-msxmX0095);the Science and Technology Research Program of Chongqing Municipal Education Commission, China (Nos. KJZD-K202001203 and KJZD-K202003501)。

摘　　要：Dear Editor,Soils contain the largest carbon(C) pool in terrestrial ecosystems.Even a small change in soil C pool may significantly influence atmospheric carbon dioxide(CO_(2)) concentration.Thus,it is critical to accurately assess the response of soil C pool to global change.Soil incubation is a frequently used method to assess soil C decomposition rate because it allows environmental variables to be under control(Unger et al.,2010;Shi and Marschner,2014).However,pre-treatments during soil sampling and processing,such as sieving and drying-rewetting,inevitably bring physical disturbances which may affect soil respiration rate(Franzluebbers,1999;Thomson et al.,2010;Curtin et al.,2014).

关 键 词：SOIL dioxide THOMSON 

分 类 号：S154.1[农业科学—土壤学]