Seasonal variation of soil nitrogen and its relationship to environmental factors under two alpine grassland ecosystems in permafrost regions on the Qinghai-Tibet Plateau
Meizhen XIE, Lin ZHAO, Xiaodong WU, Huayun ZHOU, Guangyang YUE
Journal of Glaciology and Geocryology . 2022, (5): 1631 -1639 .  DOI: 10.7522/j.issn.1000-0240.2022.0143