Stability Characteristics of Soil Organic Carbon Under Brushwood Vegetation in Dry Valley of the Upper Reaches of Minjiang River
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JIANG Guang-zheng1,GONG Yuan-bo1,CHEN Lin-wu2,ZUO Qin1,LIU Jin-xin1,YUE Yan-jie1,ZHANG Xing-hua1(1.Sichuan Agriculture University,Key Laboratory of Forestry Ecological Engineering in Sichuan Province of the Upper ChangJiang River,Ya'an,Sichuan 625014,2.Sichuan Academy of Forestry,Chengdu 610081)

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    Abstract:

    As an important species in arid valley,brushwood is widespread in the upper reaches of Minjiang river,human deforestation,reclamation and overgrazing are the fundamental driving forces for its degradation.By selecting soil profiles under brushwood vegetation,meanwhile,taking farmland(50 a) and abandoned land(10 a) as references,soil organic carbon(SOC),heavy-fraction organic matter(HF-OM) and readily oxidizable carbon(ROC) for these soil profiles were analyzed and compared.The results indicated that:The SOC...

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  • Online: October 25,2012
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