Scholarlink

<p>The ecological environment plays a crucial role in maintaining the balance and sustainability of ecosystems, particularly in the context of rapid urbanization. This study investigates the impact of urban growth on ecological environment quality in the Jalpaiguri Planning Area, a rapidly urbanizing area that has been overlooked in previous research. Using remote sensing and geographic information system, this study employed the Remote Sensing Ecological Index (RSEI) to quantitatively assess ecological environment quality by integrating key biophysical properties such as greenness, wetness, dryness, and surface temperature using multi-temporal Landsat data from 1991 to 2021. The results revealed a significant deterioration in eco-environment quality with a decline in mean RSEI values from 0.70 to 0.45. Areas with moderate to excellent ecological quality declined over time, while poor and fair quality zones increased, especially in the urban core and surrounding areas. Moran’s <i>I</i> increased from 0.332 to 0.389, suggesting an increasing spatial dependence and clustering of ecological conditions, indicative of growing environmental polarization. Local indicators of spatial association highlighted a decreasing trend in High-High clusters and an expansion of Low-Low clusters, indicating degradation in greenness and wetness due to intensified built-up development. The outcomes of regression analysis revealed a strong and consistent negative correlation between growing built-up areas and RSEI, with correlation coefficients ranging from −0.76 to −0.86 over the study period. The results support targeted planning interventions, including protection of green and blue spaces, control of unplanned built-up expansion, and integration of RSEI-based ecological monitoring into urban planning for informed decision-making.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Assessment of ecological environment quality under urbanization: an RS and GIS-based analysis of Jalpaiguri Planning Area in West Bengal, India

  • 期刊论文

  • 发表日期：

    2026年3月29日

查看全文
  • Sanjoy Barman,
  • Bipul Chandra Sarkar

摘要

The ecological environment plays a crucial role in maintaining the balance and sustainability of ecosystems, particularly in the context of rapid urbanization. This study investigates the impact of urban growth on ecological environment quality in the Jalpaiguri Planning Area, a rapidly urbanizing area that has been overlooked in previous research. Using remote sensing and geographic information system, this study employed the Remote Sensing Ecological Index (RSEI) to quantitatively assess ecological environment quality by integrating key biophysical properties such as greenness, wetness, dryness, and surface temperature using multi-temporal Landsat data from 1991 to 2021. The results revealed a significant deterioration in eco-environment quality with a decline in mean RSEI values from 0.70 to 0.45. Areas with moderate to excellent ecological quality declined over time, while poor and fair quality zones increased, especially in the urban core and surrounding areas. Moran’s I increased from 0.332 to 0.389, suggesting an increasing spatial dependence and clustering of ecological conditions, indicative of growing environmental polarization. Local indicators of spatial association highlighted a decreasing trend in High-High clusters and an expansion of Low-Low clusters, indicating degradation in greenness and wetness due to intensified built-up development. The outcomes of regression analysis revealed a strong and consistent negative correlation between growing built-up areas and RSEI, with correlation coefficients ranging from −0.76 to −0.86 over the study period. The results support targeted planning interventions, including protection of green and blue spaces, control of unplanned built-up expansion, and integration of RSEI-based ecological monitoring into urban planning for informed decision-making.