干旱区生态环境知识资源中心(Arid): Use of a Satellite-Based Aridity Index to Monitor Decreased Soil Water Content and Grass Growth in Grasslands of North-East Asia

Arid

DOI	10.3390/rs12213556
	Use of a Satellite-Based Aridity Index to Monitor Decreased Soil Water Content and Grass Growth in Grasslands of North-East Asia
	Kimura, Reiji; Moriyama, Masao
通讯作者	Kimura, R
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2020
卷号	12 期号:21
英文摘要	Numerous simulation studies of the effect of global warming on arid regions have indicated that increases in temperature and decreases in precipitation will trigger water shortages, drought, and further aridification. In north-east Asia, especially China and Mongolia, the area of degraded land has increased since 2000. Land use in arid regions is mainly natural grasslands for grazing. Growth in this land use is limited by the precipitation amount and intensity. To develop sustainable management of grasslands, it is essential to examine the relationship between water consumption and the growth patterns of the grasses. This study examined the applicability of a satellite-based aridity index (SbAI) as a way to measure the water consumption and growth of grasslands in China and Mongolia. The effective cumulative reciprocal SbAI was strongly correlated with the cumulative decreased soil water content in the root zone and changes in the normalized difference vegetation index in Shenmu, China. Application of the effective cumulative reciprocal SbAI to grasslands in Mongolia and in north-east Asia revealed a high correlation between the effective cumulative reciprocal SbAI and changes in the normalized difference vegetation index (NDVI). The effective cumulative reciprocal SbAI might be suitable for the detection of water consumption and growth in grasslands from satellite data alone.
英文关键词	desertification drylands remote sensing thermal inertia
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:000589334800001
WOS关键词	THERMAL INERTIA ; DUST ERODIBILITY ; SOURCE REGIONS ; LOESS PLATEAU ; HEAT-FLUX ; MOISTURE ; RICE ; MODEL ; AREA ; PREDICTION
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327509
作者单位	[Kimura, Reiji] Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan; [Moriyama, Masao] Nagasaki Univ, Grad Sch Engn, Nagasaki 8528521, Japan
推荐引用方式 GB/T 7714	Kimura, Reiji,Moriyama, Masao. Use of a Satellite-Based Aridity Index to Monitor Decreased Soil Water Content and Grass Growth in Grasslands of North-East Asia[J],2020,12(21).
APA	Kimura, Reiji,&Moriyama, Masao.(2020).Use of a Satellite-Based Aridity Index to Monitor Decreased Soil Water Content and Grass Growth in Grasslands of North-East Asia.REMOTE SENSING,12(21).
MLA	Kimura, Reiji,et al."Use of a Satellite-Based Aridity Index to Monitor Decreased Soil Water Content and Grass Growth in Grasslands of North-East Asia".REMOTE SENSING 12.21(2020).