Effect of different land use types on soil nutrient contents under grassland,woodland and cultivated land in the farming-pastoral ecotone in the Siziwang Banner of Inner Mongolia
YU Yajing;LI Yuejin;LI Qingchun;WANG Danlan(College of Grassland,Resources and Environment,Inner Mongolia Agricultural University,Hohhot 010018,China)
Journal of Northern Agriculture . 2019, (2): 66 -72 .  DOI: 10.3969/j.issn.2096-1197.2019.02.11