Determining bioclimatic space of Himalayan alder for agroforestry systems in Nepal.

KIB OpenIR

	Determining bioclimatic space of Himalayan alder for agroforestry systems in Nepal.
	Rana, Santosh Kumar; Rana, Hum Kala; Shrestha, Krishna Kumar; Sujakhu, Suresh; Ranjitkar, Sailesh
	2018
发表期刊	Plant diversity
ISSN	2468-2659
卷号	40 期号:1 页码:1-18
摘要	Himalayan alder species are proven to be very useful in traditional as well as contemporary agroforestry practice. These nitrogen-fixing trees are also useful in the land restoration. Therefore, understanding the distribution of Himalayan alder and the potential zone for plantation is meaningful in the agroforestry sector. Suitable climatic zones of Alnus spp. were modelled in MaxEnt software using a subset of least correlated bioclimatic variables for current conditions (1950-2000), topographic variables (DEM derived) and Landuse Landcover (LULC) data. We generated several models and selected the best model against random models using ANOVA and t-test. The environmental variables that best explained the current distribution of the species were identified and used to project into the future. For future projections, ensemble scenarios of climate change projection derived from the results of 19 Earth System Models (ESM) were used. Our model revealed that the most favorable conditions for Alnus nepalensis are in central Nepal in the moist north-west facing slope, whereas for Alnus nitida they are in western Nepal. The major climatic factor that contributes to Alnus species distribution in Nepal appears to be precipitation during the warmest quarter for A.nepalensis and precipitation during the driest quarter for A.nitida. Future projections revealed changes in the probability distribution of these species, as well as where they need conservation and where they can be planted. Also, our model predicts that the distribution of Alnus spp. in hilly regions will remain unchanged, and therefore may represent sites that can be used to revitalize traditional agroforestry systems and extract source material for land restoration.
语种	英语
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/64822
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Rana, Santosh Kumar,Rana, Hum Kala,Shrestha, Krishna Kumar,et al. Determining bioclimatic space of Himalayan alder for agroforestry systems in Nepal.[J]. Plant diversity,2018,40(1):1-18.
APA	Rana, Santosh Kumar,Rana, Hum Kala,Shrestha, Krishna Kumar,Sujakhu, Suresh,&Ranjitkar, Sailesh.(2018).Determining bioclimatic space of Himalayan alder for agroforestry systems in Nepal..Plant diversity,40(1),1-18.
MLA	Rana, Santosh Kumar,et al."Determining bioclimatic space of Himalayan alder for agroforestry systems in Nepal.".Plant diversity 40.1(2018):1-18.