Research on Soil Quality Change after Returning Farmland to Forest on the Loess Sloping Croplands
PENG Wen-ying, ZHANG Ke-li, CHEN Yao, YANG Qin-ke
JOURNAL OF NATURAL RESOURCES . 2005, (2): 272 -278 .  DOI: 10.11849/zrzyxb.2005.02.016