干旱区生态环境知识资源中心(Arid): Seasonality and moisture regime control soil respiration, enzyme activities, and soil microbial biomass carbon in a semi-arid forest of Delhi, India

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DOI	10.1186/s13717-020-00252-7
	Seasonality and moisture regime control soil respiration, enzyme activities, and soil microbial biomass carbon in a semi-arid forest of Delhi, India
	Tomar, Urvashi; Baishya, Ratul
通讯作者	Baishya, R
来源期刊	ECOLOGICAL PROCESSES
EISSN	2192-1709
出版年	2020
卷号	9 期号:1
英文摘要	Soil respiration, soil enzymes, and microbial biomass are important in carbon cycling in the terrestrial ecosystem which is generally limited by environmental factors and soil carbon availability. Hence, we tried to assess the factors affecting the functional aspects of these processes in a semi-arid climate. We monitored soil respiration (surface) using a portable infrared gas analyzer (Q-Box SR1LP Soil Respiration Package, Qubit Systems, Canada) equipped with a soil respiration chamber (Model: G 180). Soil respiration was measured at midday during each season throughout the study period. Soil enzymatic activities and microbial biomass carbon (MBC) were analyzed following the standard protocol for a year during peak time in four seasons at 0-10 cm and 10-20 cm depth. Soil respiration shows significant variation with highest in monsoon (3.31 mu mol CO(2)m(-2)s(-1)) and lowest in winter (0.57 mu mol CO(2)m(-2)s(-1)). Similarly, beta-glucosidase, dehydrogenase, and phenol oxidase activity ranged from 11.15 to 212.59 mu g PNP g(-1)DW h(-1), 0.11 to 16.47 mu g TPF g(-1)DW h(-1), and 4102.95 to 10187.55 mu mol ABTS(+)g(-1)DW min(-1), respectively. MBC ranged from 17.08 to 484.5 mu g C g(-1). Besides, soil respiration, soil enzymes (except beta-glucosidase), and MBC were significantly correlated with soil moisture. Seasonality, optimum moisture and temperature played a significant role in determining variations in soil microbiological processes (except beta-glucosidase activity); the carbon cycling in the study area is assisted by enzyme activity; dehydrogenase and phenol oxidase played a significant role in soil respiration; hence, this landscape is sensitive to environmental changes.
英文关键词	Soil respiration Enzyme activities Microbial biomass carbon Seasons Semi-arid forest
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000576375900002
WOS关键词	SUBTROPICAL HUMID FOREST ; PHENOL OXIDASE ACTIVITY ; ORGANIC-MATTER ; EXTRACELLULAR ENZYMES ; NITROGEN DEPOSITION ; ARTEMISIA-ORDOSICA ; DYNAMICS ; PLANT ; ECOSYSTEMS ; MINERALIZATION
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326686
作者单位	[Tomar, Urvashi; Baishya, Ratul] Univ Delhi, Dept Bot, Ecol & Ecosyst Res Lab, Delhi 110007, India
推荐引用方式 GB/T 7714	Tomar, Urvashi,Baishya, Ratul. Seasonality and moisture regime control soil respiration, enzyme activities, and soil microbial biomass carbon in a semi-arid forest of Delhi, India[J],2020,9(1).
APA	Tomar, Urvashi,&Baishya, Ratul.(2020).Seasonality and moisture regime control soil respiration, enzyme activities, and soil microbial biomass carbon in a semi-arid forest of Delhi, India.ECOLOGICAL PROCESSES,9(1).
MLA	Tomar, Urvashi,et al."Seasonality and moisture regime control soil respiration, enzyme activities, and soil microbial biomass carbon in a semi-arid forest of Delhi, India".ECOLOGICAL PROCESSES 9.1(2020).