气候变化会导致古吉拉特邦的荒漠化吗?

IF 2.8 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
R. Bhatla, Richa Singh,  Priyanka, R. K. Mall, Sanjay Bist
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引用次数: 0

摘要

土地退化是指由于气候变率和人类活动造成的土地经济和生物生产力下降,导致生态系统功能受到破坏。古吉拉特邦位于印度的干旱和半干旱地区,由于其对季风降水的依赖,特别容易受到这些过程的影响,而季风降水的特点是具有显著的变异性。本研究分析了2000年至2020年印度气象部门的降雨数据以及2001年、2011年和2021年卫星衍生的归一化植被指数(NDVI)值,以评估选定地区荒漠化的时空趋势。分析表明,二十年来季风降水总体呈增加趋势,但这种增加分布不均匀,某些地区的变化更为明显。遥感数据揭示了植被动态的复杂格局。Porbandar和Bharuch等地区的NDVI值有所改善,这表明植被覆盖增加,土地退化有可能恢复。相反,Vadodara的NDVI呈下降趋势,表明沙漠化风险不断上升,这可能是由工业化和森林砍伐等人为压力加剧造成的。本研究强调了气候因子与土地利用变化之间在塑造区域生态健康方面的关键相互作用。调查结果强调需要采取主动的、针对特定区域的土地管理战略来减轻荒漠化。借助强大的卫星监测和高分辨率气候数据,本研究为了解和应对类似脆弱地区的土地退化提供了一个可复制的框架。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Does climate change induce desertification in Gujarat?

Land degradation refers to the decline in economic and biological productivity of land caused by climatic variability and human activities, leading to disrupted ecosystem functions. Gujarat, located in the dry and semi-arid region of India, is particularly vulnerable to these processes due to its dependence on monsoon precipitation, which is characterized by significant variability. This study examines rainfall data from the India Meteorological Department for the period 2000 to 2020 and satellite-derived Normalized Difference Vegetation Index (NDVI) values for 2001, 2011, and 2021 to assess spatial and temporal trends in desertification across selected districts. The analysis indicates an overall increasing trend in monsoonal rainfall during the two decades, but this increase is unevenly distributed, with certain districts experiencing more pronounced variability. Remote sensing data reveal a complex pattern of vegetation dynamics. Districts like Porbandar and Bharuch show improvements in NDVI values, suggesting enhanced vegetation cover and potential recovery from land degradation. Conversely, Vadodara exhibits declining NDVI trends, highlighting escalating risks of desertification, likely driven by intensified anthropogenic pressures such as industrialization and deforestation. This research highlights the critical interplay between climatic factors and land use changes in shaping regional ecological health. The findings underscore the need for proactive and region-specific land management strategies to mitigate desertification. With the help of reliance on robust satellite-based monitoring and high-resolution climatic data, this study provides a replicable framework for understanding and combating land degradation in similar vulnerable districts.

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来源期刊
Environmental Earth Sciences
Environmental Earth Sciences 环境科学-地球科学综合
CiteScore
5.10
自引率
3.60%
发文量
494
审稿时长
8.3 months
期刊介绍: Environmental Earth Sciences is an international multidisciplinary journal concerned with all aspects of interaction between humans, natural resources, ecosystems, special climates or unique geographic zones, and the earth: Water and soil contamination caused by waste management and disposal practices Environmental problems associated with transportation by land, air, or water Geological processes that may impact biosystems or humans Man-made or naturally occurring geological or hydrological hazards Environmental problems associated with the recovery of materials from the earth Environmental problems caused by extraction of minerals, coal, and ores, as well as oil and gas, water and alternative energy sources Environmental impacts of exploration and recultivation – Environmental impacts of hazardous materials Management of environmental data and information in data banks and information systems Dissemination of knowledge on techniques, methods, approaches and experiences to improve and remediate the environment In pursuit of these topics, the geoscientific disciplines are invited to contribute their knowledge and experience. Major disciplines include: hydrogeology, hydrochemistry, geochemistry, geophysics, engineering geology, remediation science, natural resources management, environmental climatology and biota, environmental geography, soil science and geomicrobiology.
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