干旱区生态环境知识资源中心(Arid): Exploring sandy vegetation sensitivities to water storage in China's arid and semi-arid regions

Arid

DOI	10.1016/j.ecolind.2022.108711
	Exploring sandy vegetation sensitivities to water storage in China's arid and semi-arid regions
	Liu, Xinyi; Lai, Quan; Yin, Shan; Bao, Yuhai; Qing, Song; Mei, Li; Bu, Lingxin
通讯作者	Lai, Q
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2022
卷号	136
英文摘要	Hulunbuir, Otindag, Horqin and Mu Us are the four greater sandy lands in China. They are typical ecologically fragile areas with limited ability to resist interference and are susceptible to changes in the external environment. With climate change in recent decades, these areas have experienced severe land desertification and decreased groundwater levels. The ecological environment is at risk of further deterioration, and continuous vegetation restoration and management should be adapted to the local climate and maintain the water balance with natural precipitation. This paper combines multi-source satellite observations to explore the relationship between vegetation growth and water supply. The results show four main points. (1) Although the vegetation growth in Otindag and Horqin had degraded before 2010, it improved after 2010. The vegetation growth and soil moisture (SM) of the four sandy lands both generally increased from 2003 to 2016. The SM of the Horqin increased significantly (84% anomaly > 1.4 x 10-2 cm3/cm3). Other than the Hulunbuir, the other sandy lands show a downward trend in terrestrial water storage (TWS), especially the Mu Us declined the most (97% anomaly < -40 mm). (2) Solar-induced chlorophyll fluorescence (SIF) has specific advantages in characterizing the sandy vegetation productivity and water composition changes compared to vegetation index (EVI) or gross primary productivity (GPP). (3) The regional pattern of the vegetation-moisture relationship is mainly affected by the precipitation-driven SM and depends on the types of underlying vegetation functions. (4) Both SM and TWS have approximately one-month persistence in the four sandy lands, especially the Mu Us has the longest persistence (0.94 months and 1.1 months). The persistence in the early period is generally longer than that in the late period, implying that the resilience of water components after the mutation year is stronger than before it. This study provides a scientific basis for the management and restoration of sandy lands. It is recommended that different vegetation restoration and protection strategies should be developed for specific sandy land moisture conditions in arid/semi-arid regions of northern China, which includes the improvement of water use efficiency to maintain soil moisture and the reduction of excessive groundwater uses.
英文关键词	The four greater sandy lands Soil moisture Terrestrial water storage Solar-induced chlorophyll fluorescence Remote sensing Vegetation-moisture relationship
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:000784200800001
WOS关键词	INDUCED CHLOROPHYLL FLUORESCENCE ; GROSS PRIMARY PRODUCTION ; EVI TIME-SERIES ; GROUNDWATER TABLE ; USE EFFICIENCY ; ULMUS-PUMILA ; LAND ; DESERTIFICATION ; RESTORATION ; DYNAMICS
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/2XILL650/392300
推荐引用方式 GB/T 7714	Liu, Xinyi,Lai, Quan,Yin, Shan,et al. Exploring sandy vegetation sensitivities to water storage in China's arid and semi-arid regions[J],2022,136.
APA	Liu, Xinyi.,Lai, Quan.,Yin, Shan.,Bao, Yuhai.,Qing, Song.,...&Bu, Lingxin.(2022).Exploring sandy vegetation sensitivities to water storage in China's arid and semi-arid regions.ECOLOGICAL INDICATORS,136.
MLA	Liu, Xinyi,et al."Exploring sandy vegetation sensitivities to water storage in China's arid and semi-arid regions".ECOLOGICAL INDICATORS 136(2022).