干旱区生态环境知识资源中心(Arid): Mapping the distribution and extent of India's semi-arid open natural ecosystems

Arid

DOI	10.1111/jbi.14471
	Mapping the distribution and extent of India's semi-arid open natural ecosystems
	Madhusudan, M. D.; Vanak, Abi Tamim
通讯作者	Vanak, AT
来源期刊	JOURNAL OF BIOGEOGRAPHY
ISSN	0305-0270
EISSN	1365-2699
出版年	2023
卷号	50 期号:8 页码:1377-1387
英文摘要	Aim Non-forested open natural ecosystems (ONEs) support high biodiversity as well as livelihoods of millions of pastoralists, but are highly threatened due to land conversion. To improve the recognition of their value, we generated a high-resolution (30 m) map of ONEs in the low elevation arid and semi-arid regions of India. Location Indian subcontinent. Taxon Open natural ecosystems, consisting of a range of non-forested habitats. Methods We used public datasets in the Google Earth Engine catalogue to identify and mask out pixels with non-ONE land-cover types, and biophysical attributes outside the environmental envelopes of ONEs. We used 181,812 ONE and 116,447 non-ONE training points along with the input composite image to train random forest classifiers to estimate the probability of a pixel being an ONE. We developed a series of local classifiers for each of eight regions of interest and created a mask of pixels with >= 50% probability of being an ONE. Results The overall classification accuracy for this map was 85%, with a Kappa statistic of 0.70. We find that ONEs cover approximately 320,000 km(2) (10%) of India's land surface, but <5% of ONEs are covered under the existing protected area network of India. ONE areas vary greatly by region, from 6 km(2) in New Delhi (0.4% area) to 115,069 km(2) in Rajasthan (33% area). Main Conclusions A large proportion of India's geographical area represents an ecosystem that is un-recognized and under-protected. This open data source can be used by policy makers and planners to exclude these habitats when considering the location of renewable energy, tree planting for carbon sequestration and other development projects that negatively impact ONEs. We encourage further refinement of ONE maps in India, incorporating vegetation and floristic characteristics, as well as further consideration of these vulnerable neglected ecosystems in other regions of the world.
英文关键词	landscape conservation savanna grasslands spatial planning wastelands
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000843910900001
WOS关键词	GRASSY BIOMES ; DIVERSITY
WOS类目	Ecology ; Geography, Physical
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397199
推荐引用方式 GB/T 7714	Madhusudan, M. D.,Vanak, Abi Tamim. Mapping the distribution and extent of India's semi-arid open natural ecosystems[J],2023,50(8):1377-1387.
APA	Madhusudan, M. D.,&Vanak, Abi Tamim.(2023).Mapping the distribution and extent of India's semi-arid open natural ecosystems.JOURNAL OF BIOGEOGRAPHY,50(8),1377-1387.
MLA	Madhusudan, M. D.,et al."Mapping the distribution and extent of India's semi-arid open natural ecosystems".JOURNAL OF BIOGEOGRAPHY 50.8(2023):1377-1387.