摘要
土壤侵蚀和沉积作用可导致土壤有机碳在空间上发生水平迁移,从而改变植被生产力和土壤呼吸作用,显著影响生态系统碳源汇的空间格局.本文介绍了国内外相关的研究结果,综述了土壤侵蚀对生态系统碳源汇的影响,并着重分析了EDCM(erosion deposition carbon model)即侵蚀沉降碳模型等相关的土壤有机碳迁移和沉积模型.当前的研究倾向于土壤侵蚀是"碳汇",但由于土壤有机碳动态变化受到多种因素的同时影响及对土壤侵蚀大范围长时间测定的不确定性,所以对土壤侵蚀"碳源""碳汇"的讨论仍存在很大的争议.当前的土壤有机碳迁移和沉积模型由于开发者侧重点的不同,应用区域有限,有待进一步优化,应加强参数区域化和尺度转换方面的研究,扩大模型适用范围.
Soil erosion and deposition induces substantial lateral redistribution of soil organic carbon（SO（2）, this will change vegetation productivity and soil respiration, to have profound effect on carbon budgetof terrestrial ecosystems. The aim of this work is to summarize current researches in this field and evaluateeffect of soil erosion on carbon budget of terrestrial ecosystems, and to analyze erosion deposition carbon model（EDCM） and other related soil organic carbon（SOC） migration and deposition models. However, it is difficultto make a clear statement of erosion effect on soil organic carbon（SOC） dynamics, as there are many factorsaffecting soil organic carbon （SOC） dynamics and it is difficult to measure long term erosion effect on soilorganic carbon（SOC） redistribution. Current models of migration and deposition of soil organic carbon fromdifferent developers have varied focus, this limits the application area. Further optimizations are needed.Parameter regionalization and scaling studies should be strengthened and the scope of model applications needsto be expanded.
作者
崔利论
袁文平
张海成
CUI Lilun YUAN Wenping ZHANG Haicheng(State Key Laboratory of Cryospheric Science Northwest Institute of Eeo-Environment and Resources, CAS, University of Chinese Academy of Sciences, 730000, Lanzhou, Gansu, China State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, 100875, Beijing, China)
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2016年第6期816-822,共7页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金优秀青年科学基金资助项目(41322005)
中国科学院百人计划资助项目(Y329k71002)
中国科学院重点资助项目(KJZDEW-G03-04)
关键词
碳源汇
碳水平迁移
土壤侵蚀
carbon source and sink
lateral movement of carbon
soil erosion
