气候变化领域集成服务门户(CCPortal): Vegetation Degradation of Guanshan Grassland Suppresses the Microbial Biomass and Activity of Soil

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DOI	10.3390/land10020203
	Vegetation Degradation of Guanshan Grassland Suppresses the Microbial Biomass and Activity of Soil
	Liu, Yanmei; Yang, Hangyu; Xing, Zisheng; Zou, Yali; Cui, Zheming
通讯作者	Liu, YM (通讯作者)，Tianshui Normal Univ, Sch Biol Engn & Technol, Tianshui 741001, Peoples R China. ; Liu, YM (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China.
发表日期	2021
EISSN	2073-445X
卷号	10 期号:2
英文摘要	Changes in vegetation influence the function of grassland ecosystems. A degradation of the vegetation type has been found from high to low altitudes in Guanshan grassland in the order of forest grassland (FG) < shrub grassland (SG) < herb grassland (HG). However, there is poor information regarding the effect of vegetation degradation on soil microbes in Guanshan grassland. Therefore, our study evaluated the impact of vegetation degradation on the microbial parameters of soil, as well as the mechanisms responsible for these variations. Soils were sampled from 0 to 30 cm under the FG, SG, and HG in Guanshan grassland for determining the microbial biomass, enzymatic activities, basal respiration (BR), and metabolic quotient (qCO(2)) in April and July 2017. The results showed that vegetation types are important factors that obviously influence the above-mentioned soil microbial properties. The FG and SG had significantly higher soil microbial biomass, enzymatic activities, and BR than those of the HG, but markedly lower qCO(2) (p < 0.05). Soil pH, available nitrogen (AN), organic carbon (SOC), total phosphorus (TP), available P (AP), and total N (TN) were key factors in the decline in the soil microbial biomass and microbial activities of the degraded vegetation. Moreover, slope aspects also affected the soil microbial properties, with the east slope having higher soil microbial biomass, enzymatic activities, and BR and lower qCO(2) than the west slope. Conclusively, vegetation degradation has led to a decline in the soil microbial biomass and microbial activities, indicating the degradation of the Guanshan grassland ecosystem.
关键词	ENZYME-ACTIVITIES EXTRACTION METHOD ORGANIC-CARBON NITROGEN PHOSPHORUS ECOSYSTEM MINERALIZATION RESTORATION COMMUNITIES PHOSPHATASE
英文关键词	vegetation degradation; soil microbial biomass; soil enzymatic activities; BR; qCO(2); Guanshan
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Studies
WOS记录号	WOS:000622720600001
来源期刊	LAND
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254607
作者单位	[Liu, Yanmei; Zou, Yali; Cui, Zheming] Tianshui Normal Univ, Sch Biol Engn & Technol, Tianshui 741001, Peoples R China; [Liu, Yanmei] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China; [Yang, Hangyu] Gansu Forestry Technol Coll, Tianshui 741020, Peoples R China; [Xing, Zisheng] Agr & Agri Food Canada, Portage Prairie Site Brandon Res & Dev Ctr, Brandon, MB R7C 1A1, Canada
推荐引用方式 GB/T 7714	Liu, Yanmei,Yang, Hangyu,Xing, Zisheng,et al. Vegetation Degradation of Guanshan Grassland Suppresses the Microbial Biomass and Activity of Soil[J]. 中国科学院西北生态环境资源研究院,2021,10(2).
APA	Liu, Yanmei,Yang, Hangyu,Xing, Zisheng,Zou, Yali,&Cui, Zheming.(2021).Vegetation Degradation of Guanshan Grassland Suppresses the Microbial Biomass and Activity of Soil.LAND,10(2).
MLA	Liu, Yanmei,et al."Vegetation Degradation of Guanshan Grassland Suppresses the Microbial Biomass and Activity of Soil".LAND 10.2(2021).