干旱区生态环境知识资源中心(Arid): Effects of irrigation management on arid soils enzyme activities

Arid

DOI	10.1016/j.jaridenv.2020.104330
	Effects of irrigation management on arid soils enzyme activities
	Diaz, Francisco J.; Sanchez-Hernandez, Juan C.; Notario, Jesus S.
通讯作者	Diaz, FJ
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2021
卷号	185
英文摘要	Unconventional water resources such as treated wastewater (TWW) are being increasingly used for irrigation in regions with limited freshwater availability. Likewise, subsurface drip irrigation (SSDI) has been proposed for improving water use efficiency in arid lands. The combined effects of both factors (SSDI/TWW) on soil health have received little attention. This study assessed the mid-term (6 years) impact of irrigation with TWW apply by SSDI and surface drip irrigation (SDI) on soil chemical properties and enzyme activities under arid climate. The calculation of a numerical index (integrated biological response version 2; IBRv2) for enzymatic activities showed a significant deviation in soils irrigated with TWW with regard to control soils (irrigated with desalinated brackish water-DBW), particularly after SSDI. That combination TWW/SSDI inhibited most of assessed enzyme activities, save for catalase, with respect to the reference treatment (for example in a clay-loamy soil, decrease varied between 69% for esterase and 12% for dehydrogenase). Increased soil salinity (up to EC similar to 15 dS m(-1)) due to SSDI/TWW appears as one of the potential factors involved. These results suggest that current irrigation strategies in arid lands might accelerate soil degradation processes in regions where desertification is of particular concern.
英文关键词	Arid land agriculture Nonconventional water resources Subsurface drip irrigation Soil quality indicators Soil enzyme
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000589890800001
WOS关键词	SUBSURFACE DRIP IRRIGATION ; RECLAIMED WASTE-WATER ; SALINE ; PRETREATMENT ; CARBON ; CROP
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/2XILL650/327991
作者单位	[Diaz, Francisco J.; Notario, Jesus S.] Univ La Laguna, Dept Anim Biol Soil Sci & Geol, San Cristobal la Laguna 38206, Canary Islands, Spain; [Sanchez-Hernandez, Juan C.] Univ Castilla La Mancha, Inst Environm Sci, Lab Ecotoxicol, Toledo 45071, Spain
推荐引用方式 GB/T 7714	Diaz, Francisco J.,Sanchez-Hernandez, Juan C.,Notario, Jesus S.. Effects of irrigation management on arid soils enzyme activities[J],2021,185.
APA	Diaz, Francisco J.,Sanchez-Hernandez, Juan C.,&Notario, Jesus S..(2021).Effects of irrigation management on arid soils enzyme activities.JOURNAL OF ARID ENVIRONMENTS,185.
MLA	Diaz, Francisco J.,et al."Effects of irrigation management on arid soils enzyme activities".JOURNAL OF ARID ENVIRONMENTS 185(2021).