干旱区生态环境知识资源中心(Arid): Responses of plant distributions in drainage ditch banks to soil salinity in an arid agricultural irrigation region of Northwest China

Arid

DOI	10.1080/02757540.2019.1640684
	Responses of plant distributions in drainage ditch banks to soil salinity in an arid agricultural irrigation region of Northwest China
	Wu, Pan; Lu, Yongjun; Lu, Yan; Dai, Jiangyu; Huang, Tingjie
通讯作者	Lu, Yongjun ; Lu, Yan
来源期刊	CHEMISTRY AND ECOLOGY
ISSN	0275-7540
EISSN	1029-0370
出版年	2019
卷号	35 期号:8 页码:693-708
英文摘要	In arid agricultural irrigation regions, drainage ditches are important ecotones subjected to both soil salinity and artificial drainage. To explore plant community structures under varying levels of salt stress and the long-term distribution patterns of salt-tolerant species in arid open-ditch banks, a comprehensive study of soil-plant interrelationships was conducted in 39 drainage ditches of a Yellow River irrigation area of Northwest China. The results showed that larger drainage ditches exhibited higher NaCl-induced salt levels (mean >4.8 dS/m) but lower plant coverage and diversity in banks. In all, 21 families, 47 genera, and 62 plant species were detected; Phragmites australis presented the highest frequency and coverage. The high-salinity environment of >6.0 dS/m inhibited the appearance of nearly half of all species, and halophytes preferred K+-rich soils. Canonical correspondence analysis showed that mineral ions including K+, Ca2+, Mg2+, HCO3- and SO42- rather than macronutrients significantly affected the distributive heterogeneity of glycophytes under salt stress. This research revealed that smaller-sized drainage ditch habitats provided more abundant halophyte resources than larger ones and that high-diversity drainage ditches deserve more positive protection in ecologically fragile arid regions. The results of this study can aid the optimisation of plant diversity conservation strategies in agroecosystem management.
英文关键词	Salt stress plant diversity drainage ditch bank agricultural ecosystem arid and semi-arid region species maintenance
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000475049400001
WOS关键词	MINERAL-NUTRITION ; SALT-TOLERANCE ; YELLOW-RIVER ; STRESS ; WATER ; BIODIVERSITY ; COMMUNITIES ; MANAGEMENT ; DIVERSITY ; GROWTH
WOS类目	Biochemistry & Molecular Biology ; Ecology ; Environmental Sciences
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214878
作者单位	Nanjing Hydraul Res Inst, State Key Lab Hydrol Water Resources & Hydraul En, 223 Guangzhou Rd, Nanjing 210029, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Wu, Pan,Lu, Yongjun,Lu, Yan,et al. Responses of plant distributions in drainage ditch banks to soil salinity in an arid agricultural irrigation region of Northwest China[J],2019,35(8):693-708.
APA	Wu, Pan,Lu, Yongjun,Lu, Yan,Dai, Jiangyu,&Huang, Tingjie.(2019).Responses of plant distributions in drainage ditch banks to soil salinity in an arid agricultural irrigation region of Northwest China.CHEMISTRY AND ECOLOGY,35(8),693-708.
MLA	Wu, Pan,et al."Responses of plant distributions in drainage ditch banks to soil salinity in an arid agricultural irrigation region of Northwest China".CHEMISTRY AND ECOLOGY 35.8(2019):693-708.