土壤有机碳库与土壤结构稳定性关系的研究进展  

A REVIEW ON RELATIONSHIP BETWEEN SOIL ORGANIC CARBON POOLS AND SOIL STRUCTURE STABILITY

作　　者：彭新华[1] 张斌[1] 赵其国[1] 

机构地区：[1]中国科学院南京土壤研究所,南京210008

出　　处：《土壤学报》2004年第4期618-623,共6页Acta Pedologica Sinica

基　　金：国家自然科学基金项目(40371059)资助

摘　　要：土壤有机碳的形成抵押了二氧化碳的排放 ,也促进了土壤结构的形成并提高其稳定性。本文介绍土壤结构的层次性和稳定性 ,阐述不同土壤有机碳库影响土壤结构及其性质的作用机制 ,着重评述土壤活性碳库 ,颗粒有机物和可溶性有机物的数量及质量对土壤结构的层次性及其稳定性的影响机制 ,并突出土壤有机物的疏水性对土壤结构及其性质的影响等方面的研究工作。今后应深入研究不同土地利用和土壤管理措施下土壤活性碳库组成与土壤结构稳定性的关系 ;定量描述不同土壤碳库和土壤结构稳定性的形成过程 ;重视研究土壤碳库、土壤稳定性和土壤回复力三者之间的关系 ;深入研究有机碳库的性质影响土壤水分湿润速率的机制 ;应用获得的土壤有机碳库和土壤结构稳定性的新知识 。Soil organic carbon has been regarded as one of the most important pools that retain CO 2, and a binding agent influencing soil structure formation and stability. This paper reviews latest researches on soil structure hierarchy and different soil organic carbon pools contributing to soil structure formation and stability, mechanisms of soil structure hierarchy and stability being affected by the quantity and quality of soil active organic carbon pools, such as particulate organic matter and dissolved organic matter, and effects of hydrophobic organic matter on soil structure stability and soil properties. In the end, the authors propose researches in future to elucidate the relationship between soil organic carbon pools and soil structure stability under different land uses and soil managements; to quantify the formation processes of soil organic carbon pools and soil structure hierarchy; to investigate the relationship between soil organic carbon pools, soil structure stability and soil resiliency; to clarify effect of the quality of soil organic carbon on water infiltration and to consummate the models of soil organic carbon and water recycling.

关 键 词：土壤有机碳库 土壤结构 土壤稳定性 土壤团聚体 颗粒有机物 可溶性有机物 全球气候变化 

分 类 号：S153.6[农业科学—土壤学] S152.4[农业科学—农业基础科学]