峡谷侵蚀是印度土地退化中立任务的一个严重障碍
Anindya Majhi1, Pritha Bhattacharjee2, Angela Harris3
1Department of Geography, School of Environment, Education and Development, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK. anindyamajhi@gmail.com.
Scientific reports
|February 21, 2025
概括
印度 印度 印度
科学领域:
- 环境科学 环境科学
- 地质形态学 地质形态学
- 遥感 遥感 遥感 遥感
背景情况:
- 由于广泛的荒地和峡谷侵蚀,印度面临着严重的土地退化,影响环境和社会.
- 以前缺乏关于峡谷侵蚀范围和严重性的准确空间数据,这阻碍了有效的土地管理.
- 印度的目标是到2030年停止土地退化,与联合国的可持续发展目标保持一致.
研究的目的:
- 创建一个详尽的空间库存的峡谷侵蚀特征在印度.
- 为了绘制地图的空间分布,范围,和管理状态的化地区.
- 确定需要紧急干预的关键地区,以改善土地退化.
主要方法:
- 使用来自Google Earth Pro的高分辨率卫星图像进行映射.
- 记录了峡谷侵蚀特征的位置,范围和当前管理状况.
- 进行空间分析以确定受影响的地区和确定干预优先事项.
主要成果:
- 在印度19个州和德里国家首都地区发现的峡谷地形.
- 据估计,化总面积在7451至8157平方公里之间.
- 拉贾斯坦邦,北方邦,中邦,哈德邦,古吉拉特邦和查蒂斯加尔邦占总化面积的92%.
- 观察到明显的东西分裂:荒地在西部占主导地位,而峡谷系统在东部普遍存在.
- 印度东部显示出更高比例的未经管理的峡谷侵蚀特征.
- 77个地区被确定为紧急的康复干预,主要在印度东部和南部.
结论:
- 当代印度东部的峡谷侵蚀对土地管理构成了比西部荒地更严重的挑战.
- 该研究提供了关键的空间数据,以支持政策制定和地面土地管理干预.
- 这些发现是印度到2030年停止土地退化目标的重要组成部分.
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