气候变化领域集成服务门户(CCPortal): Soil respiration in an irrigated oasis agroecosystem: linking environmental controls with plant activities on hourly, daily and monthly timescales

CCPortal

DOI	10.1007/s11104-019-04354-w
	Soil respiration in an irrigated oasis agroecosystem: linking environmental controls with plant activities on hourly, daily and monthly timescales
	Ma, Ting; Zhu, Gaofeng; Ma, Jinzhu; Zhang, Kun; Wang, Shangtao; Han, Tuo; Shang, Shasha
通讯作者	Zhu, GF (通讯作者)
发表日期	2020
ISSN	0032-079X
EISSN	1573-5036
起始页码	347
结束页码	364
卷号	447 期号:1-2
英文摘要	Aim To investigate the responses of different components of soil respiration to environmental factors at different timescales in a vineyard ecosystem. Methods The trenching method was used to separate total soil respiration (TSR) into autotrophic respiration (AR) and heterotrophic respiration (HR). Soil respiration rates were measured by an LI-8100 automated flux system. Results On the hourly scale, there were contrasting responses in TSR, HR and AR to soil temperature at 5 cm (ST5), with clockwise hysteresis loop responses of TSR and HR to ST5 but a counterclockwise hysteresis loop between AR and ST5. The daily TSR didn't exponentially response to ST5 during the growing season. On the monthly scale, the relationship between TSR and ST5 showed a counterclockwise hysteresis loop. Meanwhile, the diel respiration peak lagged the peak of gross primary productivity (GPP), but the monthly peak of TSR preceded the monthly peak of GPP. The daily TSR and the daily soil water content at 5 cm (SWC5) in different months showed a quadratic relationship, but there was an exponential correlation between the monthly TSR and the monthly SWC5. Conclusions The relationship between soil respiration and environmental factors derived for a specific timescale cannot be directly applied to other timescales.
关键词	CARBON-DIOXIDE FLUX TEMPORAL VARIATION HETEROTROPHIC RESPIRATION ECOSYSTEM RESPIRATION INTERANNUAL VARIATION BIOPHYSICAL CONTROLS AGRICULTURAL SOILS DIEL VARIATION CO2 FLUXES TIME-LAG
英文关键词	Vineyard; Soil respiration; Soil temperature; Soil moisture; Gross primary productivity; Timescales
语种	英语
WOS研究方向	Agriculture ; Plant Sciences
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS记录号	WOS:000519658900023
来源期刊	PLANT AND SOIL
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259690
推荐引用方式 GB/T 7714	Ma, Ting,Zhu, Gaofeng,Ma, Jinzhu,et al. Soil respiration in an irrigated oasis agroecosystem: linking environmental controls with plant activities on hourly, daily and monthly timescales[J]. 中国科学院青藏高原研究所,2020,447(1-2).
APA	Ma, Ting.,Zhu, Gaofeng.,Ma, Jinzhu.,Zhang, Kun.,Wang, Shangtao.,...&Shang, Shasha.(2020).Soil respiration in an irrigated oasis agroecosystem: linking environmental controls with plant activities on hourly, daily and monthly timescales.PLANT AND SOIL,447(1-2).
MLA	Ma, Ting,et al."Soil respiration in an irrigated oasis agroecosystem: linking environmental controls with plant activities on hourly, daily and monthly timescales".PLANT AND SOIL 447.1-2(2020).