Underlying reasons and factors associated with changes in earthworm activities in response to biochar amendment:a review  

作　　者：Jiaqi Cui Jun Jiang E.Chang Feng Zhang Lingyu Guo Di Fang Renkou Xu Yujun Wang 

机构地区：[1]State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,P.O.Box 821,Nanjing 210008,China [2]College of Resources and Environmental Sciences,Nanjing Agriculture University,Nanjing 210095,China [3]Institute of Information Science and Technology,Southeast University,Nanjing 210096,China

出　　处：《Biochar》2023年第1期1360-1376,共17页生物炭（英文）

基　　金：National Key Agricultural Science and Technology Project of China(NK2022180104);National Key Research and Development Program of China(2021YFD1500202,2019YFC1803403).

摘　　要：Numerous studies have unequivocally demonstrated that biochar and,to a lesser degree,earthworms can independently improve soil fertility and crop productivity,although information about their co-application effects on soil characteristics is limited.In this review,(1)earthworm biomarkers and underlying influencing factors,as well as the changes in the amended soil quality in response to co-application of earthworms and biochar are presented,(2)the functional interactions between earthworms and biochar in soil are summarized;(3)the principles governing the synergetic effects of biochar and earthworms on soil quality enhancement are probed;and(4)alternative strategies to optimize the efficacy of earthworm and biochar amendments are provided.It is noteworthy that while low doses of biochar can have a positive effect on various earthworm biomarkers,including growth and reproduction,restoration of the intestinal environment,and the mitigation of cellular organelle toxicity and genetic damage,high biochar dosages can yield adverse effects.Conversely,earthworms play a crucial role in distributing biochar particles deeper into the soil matrix,bolstering carbon sequestration potential,and enhancing the persistence and efficiency of biochar utilization.Moreover,earthworms stimulate the production of soil extracellular enzymes by microorganisms,which are pivotal to the processing,stabilization,and decomposition of soil organic matter,as well as nutrient cycling in terrestrial ecosystems.Additionally,they enhance the binding affinities of these enzymes to biochar.Significantly,changes in earthworm biomarkers in response to biochar integration are predominately governed by biochar properties and dosage,contact time,and soil type.

关 键 词：BIOCHAR EARTHWORM Earthworm biomarkers Soil health Soil fertility 

分 类 号：S15[农业科学—土壤学]