Belowground carbon allocation and dynamics under rice cultivation depends on soil organic matter content

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• 作者：Zhenke Zhu ; Tida Ge ; Mouliang Xiao ; Hongzhao Yuan ; Tingting Wang…
• 关键词：Rhizodeposition ; Microbial biomass ; Paddy soils ; 13C labeling ; Root exudation ; Carbon losses ; Above ; belowground coupling
• 刊名：Plant and Soil
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：410
• 期：1-2
• 页码：247-258
• 全文大小：
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Plant Sciences; Soil Science & Conservation; Plant Physiology; Ecology;
• 出版者：Springer International Publishing
• ISSN：1573-5036
• 卷排序：410

文摘

Background and aimsThe cycling of photosynthate carbon (C) released in the rhizosphere has significant implications for C sequestration, microbial activities, and nutrient availability in the soil. It is known that the soil organic matter (SOM) content affects the nutrient status, root growth, rhizodeposition, and microbial composition and activity; however, the effects of SOM and consequently of soil fertility on the belowground allocation and dynamics of photosynthetic C remain unknown.