Effects of a conversion from grassland to cropland on soil physical-chemical properties in the agro-pastoral ecotone of Inner Mongolia: analysis of a 50-year chronosequence
JIAO Yan, ZHAO Jiaohong, XU Zhu. Effects of a conversion from grassland to cropland on soil physical-chemical properties in the agro-pastoral ecotone of Inner Mongolia: analysis of a 50-year chronosequence[J]. Ecology and Environment, 2009, 18(5): 1965-1970.