首页> 外文期刊>Journal of Remote Sensing & GIS >Spatiotemporal Change Study for High Altitudes of Pithoragarh District Uttarakhand as an Indicator of Climate Change?Spatiotemporal Change Study for High Altitudes of Pithoragarh District Uttarakhand as an Indicator of Climate Change?
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Spatiotemporal Change Study for High Altitudes of Pithoragarh District Uttarakhand as an Indicator of Climate Change?Spatiotemporal Change Study for High Altitudes of Pithoragarh District Uttarakhand as an Indicator of Climate Change?

机译:以北坡市为代表的Pithoragarh高海拔地区的时空变化研究作为气候变化的指标?

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The spatiotemporal remotely sensed data are extremely valuable for detecting changes in vegetation cover, land use/cover classes, snow, water bodies and other terrestrial features. Mapping of tree line, vegetation line, Snow line and its shift analyses can help in better knowing the trend of climate change scenarios.The present paper deals with a change analysis pattern in tree line, alpine pastures and snow line for a period of 1972 to 2016. The study was carried out in two block i.e., Munsiyari and Dharchula of Pithoragarh district of Uttarakhand Himalaya using Landsat data of the listed years. The study showed that the from 1972 to 2016 there is mean increase in tree, grassland/pastures and snow line. The mean upward shift of the tree line was highest in Munsyari block (4504 m) and Dharcula block lowest (2856 m). Magnitude of upward shift in terms of elevation range showed that at many places in the Munsyari Block, the upward shift of the tree line crossed 419 m, during 44 years interval. Grassland are found at an elevation of 1400-5754 m interval during 1972, 1523-5780 m interval during 1998 and 1742-6090 m interval during 2016. This included great expanses of pure meadows (grasslands), flowering herbs and scattered miscellaneous vegetation. The vegetation near the snow line and in the proximity of the glaciers was rather thin, scattered, apart from the mosses and lichens. The snowline during 1972 is an elevation of 2939 m, 2991 m for 1998 and 3132 m for 2016.
机译:时空遥感数据对于检测植被覆盖,土地利用/覆盖类型,积雪,水体和其他陆地特征的变化非常有价值。树线,植被线,雪线的映射及其位移分析可以帮助人们更好地了解气候变化情景的趋势。本文研究了1972年至2006年期间林线,高山草场和雪线的变化分析模式。 2016年。该研究使用列出年份的Landsat数据在Uttarakhand Himalaya的Pithoragarh区的Munsiyari和Dharchula进行了两个区块的研究。研究表明,从1972年到2016年,树木,草地/草场和雪地线平均增加。树线的平均向上移动在Munsyari区块最高(4504 m),而Dharcula区块最低(2856 m)。就海拔范围而言,向上移动的幅度显示,在Munsyari区块的许多地方,树线的向上移动在44年的间隔内跨越了419 m。草地位于1972年的1400-5754 m间隔,1998年的1523-5780 m间隔和2016年的1742-6090 m间隔。其中包括大片的纯草地(草地),开花的药草和零星的杂项植被。除苔藓和地衣以外,雪线附近和冰川附近的植被非常稀薄,分散。 1972年的雪线海拔为2939 m,1998年为2991 m,2016年为3132 m。

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