Comparison of Seasonal Soil Microbial Process in Snow-Covered Temperate   Ecosystems of Northern China

doi:10.1371/journal.pone.0092985

CORC > 北京大学 > 城市与环境学院

	Comparison of Seasonal Soil Microbial Process in Snow-Covered Temperate Ecosystems of Northern China
	Zhang, Xinyue ; Wang, Wei ; Chen, Weile ; Zhang, Naili ; Zeng, Hui
刊名	plos one
	2014
关键词	ARCTIC TUNDRA SOILS FATTY-ACID PROFILES FOREST SOIL COMMUNITY COMPOSITION NITROGEN DYNAMICS EXTRACTION METHOD DECIDUOUS FOREST GLOBAL PATTERNS CLIMATE-CHANGE ELEVATED CO2
DOI	10.1371/journal.pone.0092985
英文摘要	More than half of the earth's terrestrial surface currently experiences seasonal snow cover and soil frost. Winter compositional and functional investigations in soil microbial community are frequently conducted in alpine tundra and boreal forest ecosystems. However, little information on winter microbial biogeochemistry is known from seasonally snow-covered temperate ecosystems. As decomposer microbes may differ in their ability/strategy to efficiently use soil organic carbon (SOC) within different phases of the year, understanding seasonal microbial process will increase our knowledge of biogeochemical cycling from the aspect of decomposition rates and corresponding nutrient dynamics. In this study, we measured soil microbial biomass, community composition and potential SOC mineralization rates in winter and summer, from six temperate ecosystems in northern China. Our results showed a clear pattern of increased microbial biomass C to nitrogen (N) ratio in most winter soils. Concurrently, a shift in soil microbial community composition occurred with higher fungal to bacterial biomass ratio and gram negative (G-) to gram positive (G+) bacterial biomass ratio in winter than in summer. Furthermore, potential SOC mineralization rate was higher in winter than in summer. Our study demonstrated a distinct transition of microbial community structure and function from winter to summer in temperate snow-covered ecosystems. Microbial N immobilization in winter may not be the major contributor for plant growth in the following spring.; Multidisciplinary Sciences; SCI(E); PubMed; 0; ARTICLE; wangw@urban.pku.edu.cn; 3; e92985; 9
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/160555]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Zhang, Xinyue,Wang, Wei,Chen, Weile,et al. Comparison of Seasonal Soil Microbial Process in Snow-Covered Temperate Ecosystems of Northern China[J]. plos one,2014.
APA	Zhang, Xinyue,Wang, Wei,Chen, Weile,Zhang, Naili,&Zeng, Hui.(2014).Comparison of Seasonal Soil Microbial Process in Snow-Covered Temperate Ecosystems of Northern China.plos one.
MLA	Zhang, Xinyue,et al."Comparison of Seasonal Soil Microbial Process in Snow-Covered Temperate Ecosystems of Northern China".plos one (2014).