水土保持学报2017，Vol.31Issue(2)：209-214,6.DOI:10.13870/j.cnki.stbcxb.2017.02.035
有机物料对红壤团聚体稳定性的影响
Effects of Organic Materials on Soil Aggregate Stability in Red Soil
摘要
Abstract
This paper studied the dynamics of soil aggregation in responses to organic materials and their incorporation methods through a laboratory cultivating experiments.Five treatments were involved:no addition as a control (CK),mixing straw (M-Str),straw mulching (Str),biochar (BC) and swine manure (SM).The results showed that the M-Str and SM treatments significantly increased soil organic carbon (SOC),hot water extractable carbon (HWC),tensile strength (TS) and mean weight diameter (MWD) of aggregate stability (p＜0.05),whereas the Str treatment did not enhance SOC and MWD (p＞0.05).Compared to the CK treatment,the BC treatment did not improve MWD although it increased SOC significantly (p＜0.05).The aggregate stability in the M-Str and SM treatments was linearly related to soil respiration (CO2) (p＞ 0.05).Our results demonstrated that organic materials and their incorporation methods played a critical role in soil aggregate stability.关键词
团聚体稳定性/热水溶性有机碳/土壤有机碳/秸秆还田Key words
aggregate stability/hot water extractable carbon/soil organic matter/straw return分类
农业科技引用本文复制引用
潘艳斌,朱巧红,彭新华..有机物料对红壤团聚体稳定性的影响[J].水土保持学报,2017,31(2):209-214,6.基金项目
国家自然科学基金项目(41371235,41571130053) （41371235,41571130053）
