退化草原土壤有机质对氮素添加梯度的响应

周丽娜^1,2,鲍雅静^*,李政海^*,张靖^*,孙振^1,2

Response of The Soil Organic Matter Content to Nitrogen Addition Rate in Degraded Grasslands

ZHOU Li-na ^1,2, BAO Ya-jing^1*, LI Zheng-hai^*, ZHANG Jing^*, SUN Zhen^1,2

大连民族大学学报 . 2015, (3): 202 -206 .