干旱区生态环境知识资源中心(Arid): Change in Spatial Distribution Patterns and Regeneration of Populus euphratica under Different Surface Soil Salinity Conditions

Arid

DOI	10.1038/s41598-019-42306-7
	Change in Spatial Distribution Patterns and Regeneration of Populus euphratica under Different Surface Soil Salinity Conditions
	Zhang, Pei 1,2; Deng, Xiaoya 1; Long, Aihua 1; Xu, Hailiang2 ; Ye, Mao 3; Li, Junfeng 4
通讯作者	Deng, Xiaoya
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2019
卷号	9
英文摘要	Ecological conservation and restoration have increasingly captured attention worldwide due to the degradation of ecosystems. As one of the most ecologically fragile areas, the Tarim River Basin, of Xinjiang, China, encountered serious decline of desert riparian forests. The Chinese government has implemented the Ecological Water Conveyance Project (EWCP) since 2000, protecting and restoring the dominant natural species of the desert riparian forests, i.e., Populus euphratica Oliv. The regenerative effect after the water conveyance was noteworthy. For the purpose of clarifying the mechanism of P. euphratica forest regeneration to find a better prescription for the ecological restoration works in the Tarim River Basin, we investigated the relationship between the distribution of P. euphratica and soil salinity. Experimentally evaluated the effects of surface soil salinity on P. euphratica seed germination and the influence of river flooding on the salinity of surface soils. The results showed that (1) P. euphratica trees mainly spread along the river channel within 2 km; with increasing vertical distance to the channel, the number of trees declined significantly; (2) where the salinity of the surface soil is high, there are less living P. euphratica trees; (3) the germination of P. euphratica seeds decreases with increased soil conductivity; when the soil conductivity was higher than 7 ms/cm, the germination of P. euphratica seeds was severely curtailed. (4) Flooding regimes were a pre-condition of P. euphratica restoration; they had profound effects on improving the germination of the seeds via ameliorating water conditions and reducing salinity. Our results point out that the most efficient ecological prescription for restoring and protecting desert riparian forests is to induce flooding twice yearly during June to August with 10- to 15-day durations each time. Such a plan (especially in the Tarim River Basin) should prioritize the protection of seedlings.
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000472597400026
WOS关键词	PLANT-SPECIES RICHNESS ; TARIM RIVER ; FLOOD DISTURBANCE ; LOWER REACHES ; ECOLOGICAL RESTORATION ; TAMARIX-RAMOSISSIMA ; GROUNDWATER LEVEL ; WATER-RESOURCES ; LAND-USE ; VEGETATION
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218794
作者单位	1.China Inst Water Resources & Hydropower Res, Dept Water Resources, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100038, Peoples R China; 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; 3.Xinjiang Normal Univ, Sch Geog Sci & Tourism, Urumqi 830054, Peoples R China; 4.Shihezi Univ, Coll Water Conservancy & Architectural Engn, Shihezi 832003, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Pei,Deng, Xiaoya,Long, Aihua,et al. Change in Spatial Distribution Patterns and Regeneration of Populus euphratica under Different Surface Soil Salinity Conditions[J]. 中国科学院新疆生态与地理研究所,2019,9.
APA	Zhang, Pei,Deng, Xiaoya,Long, Aihua,Xu, Hailiang,Ye, Mao,&Li, Junfeng.(2019).Change in Spatial Distribution Patterns and Regeneration of Populus euphratica under Different Surface Soil Salinity Conditions.SCIENTIFIC REPORTS,9.
MLA	Zhang, Pei,et al."Change in Spatial Distribution Patterns and Regeneration of Populus euphratica under Different Surface Soil Salinity Conditions".SCIENTIFIC REPORTS 9(2019).