Meta-analysis of 21^(st)century studies shows that deforestation induces profound changes in soil characteristics,particularly soil organic carbon accumulation  

作　　者：Abubakari Said Mgelwa Mbezele Junior Yannick Ngaba Bin Hu Geshere Abdisa Gurmesa Agnes Godfrey Mwakaje Mateg Pascale Bernadette Nyemeck Feifei Zhu Qingyan Qiu Linlin Song Yingying Wang Yunting Fang Heinz Rennenberg 

机构地区：[1]CAS Key Laboratory of Forest Ecology and Management,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China [2]Key Laboratory of Stable Isotope Techniques and Applications,Shenyang 110016,China [3]College of Natural Resources Management&Tourism,Mwalimu Julius K.Nyerere University of Agriculture&Technology,P.O.Box 976,Musoma,Tanzania [4]Center of Molecular Ecophysiology(CMEP),College of Resources and Environment,Southwest University,Chongqing 400715,China [5]Higher Technical Teacher’Training College of Ebolowa,University of Ebolowa(HTTTC),886,Ebolowa,Cameroon [6]Multipolar Consulting Firm,1092,Elig Essono,Yaounde,Cameroon [7]Qingyuan Forest CERN,Chinese Academy of Sciences,Shenyang 110016,China [8]Forest Ecology&Stable Isotope Center,College of Forestry,Fujian Agriculture and Forestry University,Fuzhou 350002,China [9]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Forest Ecosystems》2025年第1期46-55,共10页森林生态系统(英文版)

基　　金：This study was financially supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA28020300);the National Natural Science Foundation of China(Grant No.42250410332);the Key Foreign Cooperation Program of the Bureau of International Cooperation of the Chinese Academy of Sciences(Grant No.177GJHZ2022020BS);the‘Double-First Class’Initiative Program for Foreign Talents of Southwest University(Grant No.cstc2021ycjh-bgzxm0002);the‘Prominent Scientist Program’of Chongqing Talents(Grant No.cstc2021ycjh-bgzxm0020)。

摘　　要：Deforestation is one of the most serious environmental problems facing humankind.It continues to escalate rapidly across many regions of the world,thereby deteriorating the forest soil quality.This has prompted a large number of field-based studies aimed at understanding the impacts of deforestation on soil properties.However,the lack of comprehensive meta-analyses that utilized these studies has limited our deeper understanding of how different soil properties,including the soil organic carbon(SOC)pool,respond to deforestation.To address this critical knowledge gap,we conducted a meta-analysis of 144 studies to explore the impacts of deforestation on soil chemical,physical,and biological properties,with special emphasis on the long-term changes in SOC,such as concentrations,stocks,and sequestration.The results revealed that deforestation significantly decreased soil organic matter,electrical conductivity,and base saturation by 52%,50%,and 98%,respectively.While deforestation increased soil total nitrogen content and decreased available phosphorus content by 51%and 99%,respectively,it resulted in slight decreases in some chemical properties,including soil pH(1%)and base cations(1%–13%).Deforestation significantly increased bulk density by 27%and soil erosion by 47%,but significantly decreased soil aggregate stability by 39%and saturated hydraulic conductivity by 63%.Soil microbial biomass C and N concentrations and enzyme activities were significantly decreased as a consequence of deforestation.Soil biological properties were much more affected by deforestation than soil physical and chemical properties.Regarding the SOC,the land use conversion from forest to pasture significantly increased SOC concentrations,stocks,and sequestration rates(11%–13%),whereas the land use conversions from forest to both plantation and cropland significantly decreased SOC concentrations,stocks,and sequestration rates(10%–43%).This observed decline in SOC accumulations decreased with increasing years after deforestation.The SOC

关 键 词：DEFORESTATION Land-use change Soil properties Soil organic carbon 

分 类 号：S714[农业科学—林学]