干旱区生态环境知识资源中心(Arid): Carbon budget for a plastic-film mulched and drip-irrigated cotton field in an oasis of Northwest China

Arid

DOI	10.1016/j.agrformet.2021.108447
	Carbon budget for a plastic-film mulched and drip-irrigated cotton field in an oasis of Northwest China
	Ming, Guanghui; Hu, Hongchang; Tian, Fuqiang; Khan, Mohd Yawar Ali; Zhang, Quan
通讯作者	Hu, HC (corresponding author), Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China.
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2021
卷号	306
英文摘要	Plastic-film mulched drip irrigation (PFMDI), a new crop management technique which combines plastic film mulching (PFM) and drip irrigation (DI), has been widely practiced in arid areas to save water. While this management enhances crop yield and respiration, the consequences for the net ecosystem carbon (C) budget (NECB) of PFMDI fields remain poorly unknown. Here, an investigation of the NECB over five years was conducted in a PFMDI cotton field in an arid oasis in Northwest China. The NECB was calculated by subtracting the C output associated with harvest from the Net Ecosystem Productivity (NEP). NEP was obtained as the reverse CO2 flux measured with the eddy covariance (EC) method. C output associated with harvest was estimated with biomass collections. The PFMDI field lost C with the annual NECB of -67 +/- 37g C m(-2) yr(-1) on average. Considering CO2 emission associated with the use of PFM and DI, C loss of the production system reached -120 g C m(-2) yr(-1). PFMDI enhanced both assimilation (i.e., GPP) and respiration (i.e., R-eco), but R-eco increased more than GPP, and the ratio of R-eco to GPP reached 0.93, resulting in a reduction of NEP and NECB comparing with non-PFMDI fields. Tillage increased C loss through increasing respiration while straw return decreased C loss through decreasing C output. In addition to straw return, organic fertilizer and less tillage, PFM and DI recovery should be applied in the management practices to counteract C loss in the system.
英文关键词	Net ecosystem carbon budget Plastic film mulching Drip irrigation Cotton Arid oasis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000659137200024
WOS关键词	MAIZE ROTATION CROPLAND ; SOIL RESPIRATION ; INTERANNUAL VARIATIONS ; EDDY COVARIANCE ; WINTER-WHEAT ; DIOXIDE EXCHANGE ; DAIRY PASTURE ; ARID AREA ; BALANCE ; EVAPOTRANSPIRATION
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
来源机构	清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349320
作者单位	[Ming, Guanghui] Yellow River Engn Consulting Co Ltd, Inst Adv Technol & Strategy, Zhengzhou 450000, Peoples R China; [Ming, Guanghui; Hu, Hongchang; Tian, Fuqiang] Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China; [Khan, Mohd Yawar Ali] King Abdulaziz Univ, Dept Hydrogeol, Jeddah 21589, Saudi Arabia; [Zhang, Quan] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Ming, Guanghui,Hu, Hongchang,Tian, Fuqiang,et al. Carbon budget for a plastic-film mulched and drip-irrigated cotton field in an oasis of Northwest China[J]. 清华大学,2021,306.
APA	Ming, Guanghui,Hu, Hongchang,Tian, Fuqiang,Khan, Mohd Yawar Ali,&Zhang, Quan.(2021).Carbon budget for a plastic-film mulched and drip-irrigated cotton field in an oasis of Northwest China.AGRICULTURAL AND FOREST METEOROLOGY,306.
MLA	Ming, Guanghui,et al."Carbon budget for a plastic-film mulched and drip-irrigated cotton field in an oasis of Northwest China".AGRICULTURAL AND FOREST METEOROLOGY 306(2021).