Effects of Biological Soil Crust on Soil Enzyme Activities and Nutrients Content in Wind-water Erosion Crisscross Region, Northern Shaanxi Province, China
MENG Jie, BU Chong-feng, ZHAO Yu-jiao, ZHANG Xing-chang
JOURNAL OF NATURAL RESOURCES . 2010, (11): 1864 -1874 .  DOI: 10.11849/zrzyxb.2010.11.006