封育和添加牛粪对退化亚高山草甸土壤恢复的影响
李永进1,2, 代微然1, 杨春勐1, 任健1, 毕玉芬1

Effects of fencing and cattle dung addition on soil rehabilitation of degraded sub-alpine meadow
Li Yong-jin1,2, Dai Wei-ran1, Yang Chun-meng1, Ren Jian1, Bi Yu-fen1
封育、添加牛粪对土壤有机质含量的影响