Effects of Green Manure Intercropping and Straw Mulching on Winter Rape Rhizosphere Soil Organic Carbon and Soil Respiration

Under the background of global warming, the farmland soil respiration has become the main way of agricultural carbon emissions. And green manure has great potential to curb greenhouse gas emissions and achieve energy conservation and emissions reduction. However, in purple soil region of Southwest,...

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Bibliographic Details
Published inHuanjing kexue Vol. 37; no. 3; p. 1114
Main Authors Zhou, Quan, Wang, Long-chang, Xiong, Ying, Zhang, Sai, Du, Juan, Zhao, Lin-lu
Format Journal Article
LanguageChinese
Published China 15.03.2016
Subjects
Agriculture - methods
Brassica rapa - growth & development
Carbon - analysis
China
Environmental Monitoring
Manure
Rhizosphere
Seasons
Soil - chemistry
Temperature
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Summary:Under the background of global warming, the farmland soil respiration has become the main way of agricultural carbon emissions. And green manure has great potential to curb greenhouse gas emissions and achieve energy conservation and emissions reduction. However, in purple soil region of Southwest, China, soil respiration under green manure remains unclear, especially in the winter and intercropping. Through the green manure ( Chinese milk vetch) intercropping with rape, therefore, we compared the effects of rape rhizosphere under straw mulching. The soil organic carbon and soil respiration were examined. The results showed, compared with straw mulching, root separation was the major influencing factors of soil organic carbon on rape rhizosphere. Soil organic carbon was significantly decreased by root interaction. In addition, straw mulching promoted while green manure intercropping inhibited the soil respiration. Soil respiration presented the general characteristics of fall-rise-fall due to the strong influ
ISSN:0250-3301
DOI:10.13227/j.hjkx.2016.03.042