干旱区生态环境知识资源中心(Arid): Vegetation growth variation in relation to topography in Horqin Sandy Land

Arid

DOI	10.1016/j.ecolind.2020.106215
	Vegetation growth variation in relation to topography in Horqin Sandy Land
	Fan, Jiaqi 1; Xu, Yan 1,2; Ge, Haoyuan 1; Yang, Wei 1
通讯作者	Xu, Yan
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2020
卷号	113
英文摘要	Water availability is a major limiting factor for vegetation growth in semi-arid areas. Soil moisture availability is related to topography, which therefore, influences vegetation growth. To examine the response of vegetation growth to topography, we calculated an index of vegetation growth (GRNDVI) and analyzed its distribution along a topography index in Horqin Sandy Land, Inner Mongolia, China. Cropland growth improved and then deteriorated as topography increased, while wetness initially increased and then declined. In contrast, grassland growth initially declined and then improved with increasing topography, while wetness continuously declined. Grassland growth was affected by soil moisture and by different plant species. Cover and height of herbaceous species decreased from flat to hilltop while the cover and height of shrub species increased, especially those species with stronger drought tolerance. Different optimal land use scenarios were proposed based on water availability and topographic position. In the lowest areas, wetlands are proposed to promote natural habitat for aquatic plants and animals. In low areas, water facilities could be constructed and crops planted to supply food. In the middle area, grassland should be utilized to provide some pastures. In the upper and highest areas, drought tolerant shrubs should be planted to stabilize slopes and enhance native biodiversity and ecological integrity. The study could be used as a functional model to reduce desertification in semi-arid areas through optimizing land utilization, maintaining and enhancing ecological integrity and promoting sustainable development.
英文关键词	GRNDVI Vegetation growth Wetness Topography index Horqin Sandy Land
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000523335900104
WOS关键词	CARAGANA-MICROPHYLLA ; SOIL-MOISTURE ; TIME-SERIES ; AEOLIAN DESERTIFICATION ; SPATIAL-DISTRIBUTION ; CAP TRANSFORMATION ; GRAZING EXCLUSION ; NITROGEN STORAGE ; INNER-MONGOLIA ; DESERT STEPPE
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319254
作者单位	1.China Agr Univ, Coll Land Sci & Technol, Beijing 100193, Peoples R China; 2.Key Lab Agr Land Qual & Monitoring Nat Resource, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Fan, Jiaqi,Xu, Yan,Ge, Haoyuan,et al. Vegetation growth variation in relation to topography in Horqin Sandy Land[J]. 中国农业大学,2020,113.
APA	Fan, Jiaqi,Xu, Yan,Ge, Haoyuan,&Yang, Wei.(2020).Vegetation growth variation in relation to topography in Horqin Sandy Land.ECOLOGICAL INDICATORS,113.
MLA	Fan, Jiaqi,et al."Vegetation growth variation in relation to topography in Horqin Sandy Land".ECOLOGICAL INDICATORS 113(2020).