干旱区生态环境知识资源中心(Arid): Application of remote sensing in alpine grasslands cover mapping of western Himalaya, Uttarakhand, India

Arid

DOI	10.1007/s10661-021-08956-9
	Application of remote sensing in alpine grasslands cover mapping of western Himalaya, Uttarakhand, India
	Pandey, Arvind; Singh, Gajendra; Palni, Sarita; Chandra, Naveen; Rawat, J. S.; Singh, Ajit Pratap
通讯作者	Singh, AP (corresponding author), Birla Inst Technol & Sci, Dept Civil Engn, Pilani 333031, Rajasthan, India.
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2021
卷号	193 期号:4
英文摘要	Grasslands are the world's most extensive terrestrial ecosystem, which provides a variety of services for humans, such as carbon storage, food production, crop pollination, pest regulation, and are a major feed source for livestock. However, grasslands are today one of the most endangered ecosystems due to land-use change, agricultural intensification, land abandonment, as well as climate change. Grasslands are an integral part of human societies across the globe, which are broadly known as tropical savannah and temperate grasslands. In the Himalayan region, grasslands are found in more than 55% of the area and different climatic conditions lead to different varieties of grasslands like Danthonia grasslands, kobresia sedge meadow, etc. Grasslands deal with the spatial and temporal distribution of heterogeneous landscapes, which support a high diversity of various species. Owing to very rugged terrain and inaccessibility, the information on the extent of alpine grassland and percent grass cover (%) across the meadows is limited. Therefore, the present attempt was made to assess the current status of grassland in the alpine region of Uttarakhand above 3000 m asl. LANDSAT-8 (OLI and TIRS sensors) satellite data were used to delineate the grasslands using normalized difference vegetation indices (NDVIs) of the alpine region with the help of over 179 ground truth points out of which 50 points are testing points and 129 points are training points. Grass covers (%) were also assessed in the whole alpine region of Western Himalaya of Uttarakhand which nearly consists of over 75 meadows by using random plots (1x1 m, total 10 per site) in each meadow. Overall, 89.52% accuracy was achieved based on 50 randomly selected testing points. A total of 4949.25 sq. km area is under the different percentage of grass cover in the alpine region of Uttarakhand, Western Himalaya. Danthonia grasslands below 4000 m and Kobresia sedge meadows above 4000 m elevation are dominant in the state. In the alpine region, over 1056 sq. km grassland area have less than 10% grass cover indicating higher degraded and cold desert areas and only 565.69 sq. km area have more than 60% grass cover, which is highly favorable for rich biodiversity and grazing.
英文关键词	Alpine landscape Danthonia grassland Grass cover Grassland mapping Himalayan region NDVI
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000626580100004
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350134
作者单位	[Pandey, Arvind; Palni, Sarita] Soban Singh Jeena Univ, Dept Remote Sensing & GIS, SSJ Campus, Almora 263601, Uttarakhand, India; [Singh, Gajendra; Chandra, Naveen] Uttarakhand Space Applicat Ctr, Forestry & Climate Change Div, Dehra Dun 248006, Uttarakhand, India; [Rawat, J. S.] Soban Singh Jeena Univ, Dept Geog, SSJ Campus, Almora 263601, Uttarakhand, India; [Singh, Ajit Pratap] Birla Inst Technol & Sci, Dept Civil Engn, Pilani 333031, Rajasthan, India
推荐引用方式 GB/T 7714	Pandey, Arvind,Singh, Gajendra,Palni, Sarita,et al. Application of remote sensing in alpine grasslands cover mapping of western Himalaya, Uttarakhand, India[J],2021,193(4).
APA	Pandey, Arvind,Singh, Gajendra,Palni, Sarita,Chandra, Naveen,Rawat, J. S.,&Singh, Ajit Pratap.(2021).Application of remote sensing in alpine grasslands cover mapping of western Himalaya, Uttarakhand, India.ENVIRONMENTAL MONITORING AND ASSESSMENT,193(4).
MLA	Pandey, Arvind,et al."Application of remote sensing in alpine grasslands cover mapping of western Himalaya, Uttarakhand, India".ENVIRONMENTAL MONITORING AND ASSESSMENT 193.4(2021).