农业环境科学学报2012，Vol.31Issue(10)：1972-1975,4.
冻融次数和含水量对棕壤总有机碳和可溶性有机碳的影响
Effect of Freeze/Thawing Frequency and Soil Water Content on Total Organic Carbon and Dissolved Organic Carbon of Burozem
摘要
Abstract
This paper studied the effect of freeze/thawing frequency and water content on organic carbon of burozem by simulating the temperature conditions. Burozem was collected from the China northeast as the experiment soil. The results showed that the effect of freeze/thawing frequency and water content on total organic carbon(TOC) was not significant. The effect of freeze/thawing frequency on dissolved organic carbon( DOC) was significant. The DOC content decreased firstly and then increased with the increasing frequency of freeze/thawing cycles. The freeze/thawing decreased the DOC content within this experiment range. The ratio change of DOC/TOC with the freeze/thawing cycles was same to the DOC. DOC was a good indicator of the quality of soil organic carbon under different freeze/thawing treatments for its stronger sensitivity to the freeze/thawing cycles.关键词
冻融/含水量/棕壤/总有机碳/可溶性有机碳Key words
freeze/thawing/ water content/ burozem/ total organic carbon/ dissolved organic carbon分类
农业科技引用本文复制引用
王展,张玉龙,张良,范庆锋,刘畅..冻融次数和含水量对棕壤总有机碳和可溶性有机碳的影响[J].农业环境科学学报,2012,31(10):1972-1975,4.基金项目
国家重点基础研究发展(973)计划(No.2004CB418504) （973）
