Effect of Snow Depth and Snow Duration on Soil N Dynamics and Microbial Activity in the Alpine Areas of the Eastern Tibetan Plateau

被引：9
|
作者：
Xia, Hu [1 ,2 ]
Peng, Yin [1 ]
Yan, Wu [2 ]
Ning, Wu [1 ]
机构：
[1] Leshan Normal Univ, Coll Life Sci, Leshan 614000, Sichuan, Peoples R China
[2] Chinese Acad Sci, Chengdu Inst Biol, ECORES Lab, Chengdu 610041, Sichuan, Peoples R China
来源：
RUSSIAN JOURNAL OF ECOLOGY | 2014年 / 45卷 / 04期
基金：
对外科技合作项目（国际科技项目）;
关键词：
Snow depth; Snow duration; Soil N cycle; Soil microbe; Invertase; Catalase; Cellulase; Alpine area; Tibetan Plateau; DEEPENED SNOW; NITROGEN; TUNDRA; WINTER; MINERALIZATION;
D O I：
10.1134/S106741361404016X
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
The effects of snow regimes (including the depth and duration of snow cover) on soil N dynamics and microbial activity in situ were explored in the alpine belt of the eastern Tibetan Plateau. Deeper snowcover reduced NH4+-N content, microbial biomass carbon and nitrogen, fungi count, and enzyme activities, whereas did not change net N mineralization. No differences in N pools in the soil, microbial biomass, microbial counts, and enzyme activity were found under the different duration of snow cover, showing that accumulation and release in soil N pools did not be significantly changed by earlier continuous snow cover.
引用
收藏
页码：263 / 268
页数：6
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