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作为对气候变化的反应,佩沙瓦盆地的植被覆盖的时空空间变化

Ishaq Ali Shah^1,2, Zahir Muhammad³, Haroon Khan⁴

¹Department of Botany, University of Peshawar, Peshawar, 25120, Pakistan. durrani1436@uop.edu.pk.

Environmental monitoring and assessment

|November 14, 2023

概括

气候变化对佩沙瓦盆地的植被产生重大影响. 虽然整体植被状况有所改善,但极端天气和人类活动带来风险,需要适应和减轻可持续发展的战略.

科学领域:

环境科学环境科学
气候科学气候科学
遥感遥感遥感遥感

背景情况:

气候因素对植被动态有深远的影响,需要在气候变化背景下进行了解.
气候变化 (CV) 对植被健康和生态系统稳定性构成挑战.
佩沙瓦盆地 (PB) 面临着来自气候变化和人类活动的环境压力.

研究的目的:

用遥感数据调查气候变化对佩沙瓦盆地的植被的影响.
分析植被的时空趋势及其与气候参数的关系.
评估土地表面温度对植被覆盖的影响.

主要方法:

利用中等分辨率成像光谱辐射仪 (MODIS) 数据进行规范差异植被指数 (NDVI) 分析.
使用修改后的曼-肯德尔测试和森的斜率统计数据来评估气候趋势.
与NDVI相比,回归的气候参数 (温度,降水,湿度,太阳辐射) 和土地表面温度 (LST).

主要成果:

年平均温度和太阳辐射对NDVI产生了负面影响,而降水和相对湿度对NDVI产生了积极影响.
从2001年到2020年,观察到NDVI的总体积极趋势,在特定年份有显著的下降.
高LST与最小的植被覆盖相关,表明热应激影响.
在NDVI的空间变化归因于气候极端和土地利用变化,如城市化.

结论:

佩沙瓦盆地的植被受到气候变化引起的极端天气和人类活动的影响.
尽管总体情况有所改善,但植被面临着森林砍伐和气候变化的威胁,加剧了灾害风险.
迫切需要适应和减缓战略,气候适应性政策和植被恢复的可持续发展.

关键词:

气候变化的变化.时间 LST LST NDVI NDVI 在线阅读佩沙瓦盆地佩沙瓦盆地时间空间的变化.植物生长植物生长

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