Juniperus polycarpos L. is one of the most threatened and livelihood plant species of the Himalayan region. The present study provides information about monitoring of its populations and proliferation rate in high altitude regions of Trans-Himalaya. The survey revealed comprehensive information on J. polycarpos such as distribution range, habitat characteristics, composition, structural pattern, population size, uses and diversity status. Its distribution and density were maximum in pure forest habitats as compared to mixed habitats recorded. Middle forest altitudinal zone (3100–3500 m for dominant J. polycarpos community and 2710–3100 m for mixed communities) showed suitability for its growth and high density. The occurrence of species above treeline altitudinal zone (4000 m) indicates effect by climate change. A total 281 species (158 genera, 48 families, 37.04% native, 2.06% endemic, 23.87% near-endemic, 74.44% economically important and 20.28% threatened species) were recorded within its populations. Frequent monitoring of populations under climate change scenarios is suggested.

中文翻译：

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印度冷喜马拉雅地区冷气候下杜鹃科植物K. Koch的种群和群落结构格局

杜松杜鹃是喜马拉雅地区最受威胁和生计的植物之一。本研究提供了有关在喜马拉雅山高海拔地区监测其种群和繁殖率的信息。调查显示综合信息J. polycarpos如分布范围，栖息地特征，组成，结构模式，人口尺寸，用途和多样性状态。与记录的混合生境相比，其在纯森林生境中的分布和密度最大。中部森林垂直带（占优势的J. polycarpos 3100–3500 m群落和2710–3100 m的混合群落）显示了其生长和高密度的适宜性。树木海拔高度（4000 m）以上物种的出现表明气候变化的影响。在其种群中共记录了281种（158属，48族，本地37.04％，地方特有2.06％，近地方特有23.87％，经济上重要的74.44％和受威胁物种20.28％）。建议对气候变化情景下的人口进行经常监测。