期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Availability and Use of Willow Species in Representative Cold Desert Areas of Northwestern Himalaya,India
1
作者 Yashwant S.RAWAT Colin S.EVERSON 《Journal of Mountain Science》 SCIE CSCD 2013年第3期472-481,共10页
Willow species (Salix fragilis L. and S. alba L.) are important elements of cold desert agroforestry systems in the Lahaul valley, north- western Himalaya. Their ability to grow through shoot-cuttings plantations un... Willow species (Salix fragilis L. and S. alba L.) are important elements of cold desert agroforestry systems in the Lahaul valley, north- western Himalaya. Their ability to grow through shoot-cuttings plantations under extreme and xeric climatic conditions of cold deserts, makes them ecologically suited and socially accepted for forestry programmes. Willow species in cold deserts may combat desertification and can thrive well in these areas as compared to any other species. Salixfragilis L. and S. alba L. are under cultivation in the Lahaul valley. However, S. fragilis is widely cultivated under the agroforestry and plantation forestry systems. In the Lahaul valley, willow species are used as subsistence resources and for socio-religious purposes. The present study was carried out to examine the vegetation analysis, density, diversity and distribution of willow species, present status and potential willow plantation sites and uses. The results of present study revealed that a higher species density was recorded at middle altitude villages (Jahlma-3,ooo m asl and Hinsa-2,7oo m asl), except, a higher density of S. fragilis was at Khoksar (3,200 m asl) in plantation forestry on south-facing slopes. In forests, S. fragilis was planted mainly along the water channels, resulted a low density. The shrubby willow species occurred naturally in the entire Lahaul valley up to an altitude of 3,850 m asl. 81% of households felt the scarcity of willow trees, whereas, 19% of households were satisfied with the willow trees they owned. The majority of willow species were planted in middle altitudes on privately owned irrigated lands. It was rated most potential prospective willow planting siteby the farmers. Small size of land-holdings was one of the main constraints for establishing a large number of willow plantations. Commercial aspects of willow species need to be investigated to encourage the farmers to plant more willows further. 展开更多
关键词 WILLOW AGROFORESTRY FORESTRY speciesdiversity HIMALAYA
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部