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Green to gray: Silicon Valley of India
Journal of Environmental Management ( IF 8.7 ) Pub Date : 2017-07-06 , DOI: 10.1016/j.jenvman.2017.06.072
H.A. Bharath , S. Vinay , M.C. Chandan , B.A. Gouri , T.V. Ramachandra

Rapid growth, population concentration and the expansion of urban areas towards peri-urban regions have led to changes in urban structure and composition, and consequently changes in urban ecology. The purpose of this study is to estimate trees in the urban environment through quantification of vegetation cover using multi resolution spatial data supplemented with tree data acquired from field using pre-calibrated GPS. Optimal resolution for extracting trees was attained through fusion of multi resolution (spectral and spatial) data. Results highlight region with spatial extent of 741 sq. km with 9.5 million human population has about 1.48 million trees. Further, urban growth increment is expected to cover 95% of the landscape with paved surfaces by 2020 decreasing vegetation cover while severely affecting the local ecology and environment in addition to human survival.



中文翻译:

绿色至灰色:印度硅谷

快速增长,人口集中以及城市地区向近郊地区的扩展导致城市结构和组成的变化,进而导致城市生态学的变化。这项研究的目的是通过使用多分辨率空间数据对植被覆盖度进行量化来估计城市环境中的树木,该空间数据还补充了使用预先校准的GPS从野外获取的树木数据。通过融合多分辨率(光谱和空间)数据,可获得提取树木的最佳分辨率。结果突出显示该区域的空间范围为741平方公里,人口950万,大约有148万棵树。进一步,

更新日期:2017-12-14
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