高寒山区退耕还林不同年限土壤理化性质研究——以青海省大通县为例
马志林, 周心澄, 史常青
Improvement of Soil Physical and Chemical Properties after “Conversion of Farmland to Forest” in Alpine Areas——Take Datong County of Qinghai Province as an Example<
MA Zhilin, ZHOU Xincheng, SHI Changqing
林草资源研究
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2008, (3): 72
-76
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DOI: 10.13466/j.cnki.lyzygl.2008.03.010
