Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1016/j.geoderma.2021.115505 |
| Effect of snow cover on water content, carbon and nutrient availability, and microbial biomass in complexes of biological soil crusts and subcrust soil in the desert | |
Hui, Rong; Zhao, Ruiming; Liu, Lichao; Li, Xinrong
| |
| Corresponding Author | Hui, R (corresponding author), Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Donggang West Rd 320, Lanzhou 730000, Gansu, Peoples R China. |
| Journal | GEODERMA
 |
| ISSN | 0016-7061 |
| EISSN | 1872-6259 |
| Year Published | 2022 |
| Volume | 406 |
| Abstract in English | Winter snowfall is an important water resource for organisms in desert ecosystems. Changing snow depth is expected to exert a potential influence on growth and ecological functions of biological soil crusts (BSCs), which are known as a dominant functional vegetation unit of desert ecosystems. However, limited attention has been paid to this potential effect on BSCs. A field simulation experiment was conducted to measure the water content, nutrient concentrations (organic carbon; total nitrogen; available nitrogen; available phosphorus; available potassium; ammonium nitrate; and nitrate nitrogen), and microbial biomass (carbon, nitrogen, and phosphorus) in samples (cyanobacterial and lichen crusts and subcrust soil) under snow cover of different depths after a four year experiment (from October 2013 to April 2017) in the Gurbantunggut Desert. The results showed that water content increased with increasing snow depth (P < 0.05). Snow removal and snow cover reduction decreased nutrient and microbial biomass concentrations in both biocrust types (P < 0.05). The concentrations of most measured nutrients and microbial biomass decreased significantly when snow depth was increased to twice ambient conditions (P < 0.05). Moreover, the concentrations of nutrients and microbial biomass were significantly influenced by snow depth (P < 0.05), crust type (P < 0.001), and their interaction (P < 0.05). The results demonstrated that variation in snow depth adversely affect the carbon and nutrient availability and microbial biomass in BSCs. Such changes might lead to a cascading effect in species composition and function of BSC communities in arid regions. |
| Keyword in English | Biological soil crusts (BSCs) Desert ecosystem Freeze-thaw cycle Snow depth Microbial biomass |
| Subtype | Article |
| Language | 英语 |
| Indexed By | SCI-E |
| WOS ID | WOS:000708893700003 |
| WOS Keyword | BACTERIAL COMMUNITY STRUCTURE ; GURBANTUNGGUT DESERT ; DISTRIBUTION PATTERNS ; SEASONAL DYNAMICS ; ORGANIC-MATTER ; TENGGER DESERT ; NITROGEN ; PRECIPITATION ; DEPTH ; PLANT |
| WOS Subject | Soil Science |
| WOS Research Area | Agriculture |
| Document Type | 期刊论文 |
| Identifier | http://119.78.100.177/qdio/handle/2XILL650/363398 |
| Affiliation | [Hui, Rong; Liu, Lichao; Li, Xinrong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Donggang West Rd 320, Lanzhou 730000, Gansu, Peoples R China; [Zhao, Ruiming] Gansu Agr Univ, Coll Agron, 1 Yingmen Village, Lanzhou 730070, Gansu, Peoples R China |
| Recommended Citation GB/T 7714 | Hui, Rong,Zhao, Ruiming,Liu, Lichao,et al. Effect of snow cover on water content, carbon and nutrient availability, and microbial biomass in complexes of biological soil crusts and subcrust soil in the desert[J],2022,406. |
| APA | Hui, Rong,Zhao, Ruiming,Liu, Lichao,&Li, Xinrong.(2022).Effect of snow cover on water content, carbon and nutrient availability, and microbial biomass in complexes of biological soil crusts and subcrust soil in the desert.GEODERMA,406. |
| MLA | Hui, Rong,et al."Effect of snow cover on water content, carbon and nutrient availability, and microbial biomass in complexes of biological soil crusts and subcrust soil in the desert".GEODERMA 406(2022). |
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