围封对黄土高原草地土壤铵态氮和硝态氮的影响
廖圣祥1, 任运涛1, 袁晓波1, 李旭东1, 郭丁1, 李金博2, 傅华1

Effects of fencing on contents of soil ammonium nitrogen and nitrate nitrogen in the Loess Plateau, northern China
Liao Sheng-xiang1, Ren yun-tao1, Yuan Xiao-bo1, Li Xu-dong1, Guo Ding1, Li Jin-bo2, Fu Hua
围封与放牧草地不同土层土壤铵态氮、硝态氮与土壤含水量、土壤微生物生物量碳及植被地上绿色生物量的RDA排序图