干旱区生态环境知识资源中心(Arid): Spatiotemporal variations and underlying mechanism of the floodplain wetlands in the meandering Yellow River in arid and semi-arid regions

Arid

DOI	10.1016/j.ecolind.2022.108709
	Spatiotemporal variations and underlying mechanism of the floodplain wetlands in the meandering Yellow River in arid and semi-arid regions
	Ablat, Xarapat; Qi Wang; Arkin, Nurmemet; Tang Guoping; Sawut, Rukeya
通讯作者	Tang, GP
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2022
卷号	136
英文摘要	Floodplain wetlands in the arid and semi-arid regions are highly threatened by complex changing environments. In order to better understand the response of wetland landscape patterns to floodplain hydro-geomorphology and landuse changes in drylands, this study aims to explore the spatiotemporal variation and underlying mechanisms of the floodplain wetland landscape patterns of the Yellow River in the arid and semi-arid region during 1973-2014. Based on the time-series Landsat observations, land use and hydrological data, the directional distribution, connectivity indicators, as well as univariate and multivariate linear regressions were used to analyze the trends and variations of wetland landscape pattern changes and their relationship with floodplain hydro-geomorphology and land use changes. Our results showed that the floodplain wetlands became more fragmented during 1973-2014, characterized by a decrease (6756 ha) in the total wetland patch area and an increase (353) in the number of patches. The center point of the wetlands in the whole study area migrated from the southwestern to northeastern part (0.8 km in the east direction and 1.7 km in the north direction). The greatest migration of the center point of wetlands occurred during the combined operation of the Longliu reservoirs, indicating that the decreasing frequency of large floods and unstable channel resulted in the fragmentation and migration of the overall wetlands. In addition, the operation of dam augmented the influence of hydro-geomorphology on the wetlands. Ice flooding benefed the formation of new wetlands and accelerated the migration of the overall wetlands. Land use changes due to the practice of various protection policies did not pose impact on the spatiotemporal changes of wetlands. Thus, a better understanding of the wetland landscape pattern changes in unstable floodplains requires considering both the floodplain hydro-geomorphology and land use changes, which is supportive to sustainable river floodplain management.
英文关键词	Floodplain wetland changes Hydro-geomorphology Natural and anthropogenic factors River-floodplain connectivity Remote sensing The Yellow River
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000809739800002
WOS关键词	RIPARIAN VEGETATION RESPONSE ; LANDSCAPE CONNECTIVITY ; CHANNEL GEOMETRY ; DYNAMICS ; FLOW ; SCALE ; REACH ; GEOMORPHOLOGY ; ESTABLISHMENT ; VARIABILITY
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392301
推荐引用方式 GB/T 7714	Ablat, Xarapat,Qi Wang,Arkin, Nurmemet,et al. Spatiotemporal variations and underlying mechanism of the floodplain wetlands in the meandering Yellow River in arid and semi-arid regions[J],2022,136.
APA	Ablat, Xarapat,Qi Wang,Arkin, Nurmemet,Tang Guoping,&Sawut, Rukeya.(2022).Spatiotemporal variations and underlying mechanism of the floodplain wetlands in the meandering Yellow River in arid and semi-arid regions.ECOLOGICAL INDICATORS,136.
MLA	Ablat, Xarapat,et al."Spatiotemporal variations and underlying mechanism of the floodplain wetlands in the meandering Yellow River in arid and semi-arid regions".ECOLOGICAL INDICATORS 136(2022).