土壤与作物Issue(1)：34-41,8.DOI:10.11689/j.issn.2095-2961.2015.01.005
土壤团聚体结构与有机碳的关系、定量研究方法与展望
Soil Aggregate Structure and the Relationship between Organic Carbon, Quantitative Research Methods and Prospect
摘要
Abstract
Soil carbon sequestration has turned into a key issue in the global carbon research and been given great attentions .The physi-cal protection of soil organic carbon through aggregates is one of the most important mechanisms of C sequestration .The initial soil or-ganic carbon plays an irreplaceable role in the formation of soil aggregates and aggregate structure .When land use ,tillage practices and fertilization change ,the role of aggregates and aggregate structure in soil organic carbon sequestration become more prominent .There are numerous pores existing inter-and intra-aggregates ,so aggregate pore structure is used to characterize the aggregates structure.The num-ber of pores,pore size,pore shape and spatial distribution of pores affect soil water movement ,plant root growth,soil biological activity and soil organic carbon distribution , and thereby affect soil C sequestration.This paper analyzes the relationships among water , plant roots,soil organisms and aggregate pore structure ,and the roles of these factors in the dynamics of soil organic carbon ,and outlines the deficiency of the present research.Meanwhile,it expounds the applications of different computed tomography (CT) techniques in detec-ting soil aggregate structure and corresponding data extraction method ,also discusses the effects of organic carbon stabilization by aggre-gate pore structure.In the end ,this paper points out further studies which needs be strengthened in this area .关键词
团聚体结构/土壤有机碳固定/团聚体孔隙/CT技术Key words
aggregates structure/soil organic carbon sequestration/aggregates pores/CT technology分类
农业科技引用本文复制引用
陈升龙,梁爱珍,张晓平,陈学文..土壤团聚体结构与有机碳的关系、定量研究方法与展望[J].土壤与作物,2015,(1):34-41,8.基金项目
国家自然科学基金项目（31170483）、中国科学院重点部署项目（KZZD－EW－TZ－16－02）、中国科学院东北地理与农业生态研究所＂优秀青年人才＂基金项目 （）
