Effects of short-term and long-term warming on soil nutrients, microbial biomass and enzyme activities in an alpine meadow on the Qinghai-Tibet Plateau of China

Interannual Variability of Soil N and C Forms in Response to Snow—Cover duration and Pedoclimatic Conditions in Alpine Tundra, Northwest Italy

“…This is consistent with soil microorganisms showing a high level of sensitivity to variation in temperature, and displaying increasing soil temperatures throughout the typical ambient ranges (Schutt et al, 2014;Bing et al, 2016). This is in accordance with Wang et al (2014) and Rui et al (2011) who reported an increase of N-NH 4 + and microbial biomass after soil warming experiments in an alpine meadow. Also, Harrison et al (2008) reported that soil DOC concentration increased after a rise in temperature in the upland soils on the Northern Pennines, which was mainly associated with solar radiation and temperature.…”

Response of Soil Carbon and Nitrogen to 15-year Experimental Warming in Two Alpine Habitats (Kobresia Meadow and Potentilla Shrubland) on the Qinghai-Tibetan Plateau

“…Global warming could stimulate carbon (C) sequestrations in soil [1][2], therefore, with the context of climatic warming, understanding the effects of changes in temperature on soil C and nitrogen (N) in terrestrial ecosystems is vital to global C and N cycling [3][4]. In the past decades, inconsistent results on the responses of soil C and N pools to climatic warming have been observed [5][6][7]. Some research has demonstrated that warming can have pronounced effects on soil C and N [8][9], while some concluded that warming had no significant effect [10][11][12].…”

“…In the past decades, inconsistent results on the responses of soil C and N pools to climatic warming have been observed [5][6][7]. Some research has demonstrated that warming can have pronounced effects on soil C and N [8][9], while some concluded that warming had no significant effect [10][11][12]. These findings indicate that there are a great many uncertainties in the response of soil C and N to warming, and that clarifying the effect of warming on soils needs to consider ecosystem types, initial soil characteristics, their local climate, and the years of warming [10,13].…”

“…The annual mean ground surface temperature increase over the QTP during the period of 1980-2007 was about 0.60ºC/ decade, which was more pronounced than the increase of mean annual air temperature on the plateau [14]. Simulation experiments have been carried out in this area to examine the impacts of experimental warming on soil C and N dynamics [1,6,[11][12]15] and soil microbial community [16]. Some of this research has shown that warming can have pronounced effects on soil nutrients [9], and microbial community structure and activity [16][17], while others have shown that warming had no obvious effect on soil nutrients [11][12].…”

“…Simulation experiments have been carried out in this area to examine the impacts of experimental warming on soil C and N dynamics [1,6,[11][12]15] and soil microbial community [16]. Some of this research has shown that warming can have pronounced effects on soil nutrients [9], and microbial community structure and activity [16][17], while others have shown that warming had no obvious effect on soil nutrients [11][12]. Klein et al [18][19][20] and Wang et al [21] observed the impacts of shortterm warming on microclimate, plant species diversity, and primary productivity of alpine meadow (Kobresia meadow and Potentilla scrubland) on the QTP.…”