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拉吉夫·甘地 (纳格霍尔) 虎保护区的森林有多自然? 一种多源数据方法
B Swarada1, S V Pasha2, V K Dadhwal1
1School of Natural Science and Engineering, National Institute of Advanced Studies (NIAS), Indian Institute of Science (IISC) Campus, Bengaluru, India, 560 012.
Environmental monitoring and assessment
|April 12, 2024
概括
拉吉夫·甘地 (纳格霍尔) 虎长期监测显示,由于人类活动造成的森林严重碎片化和息地丧失. 用本地物种取代单一种植园对于恢复森林完整至关重要.
科学领域:
- 生态监测和遥感用于保护区管理.
- 林业和保护科学 林业和保护科学
- 景观生态学和息地评估.
背景情况:
- 了解长期土地使用动态对于评估保护区内森林完整性至关重要.
- 拉吉夫·甘地 (纳加尔霍尔) 老虎保护区 (RTR) 面临着与人类足迹和息地改变有关的挑战.
- 历史上的土地利用做法,包括商业种植园,影响了自然森林覆盖面.
研究的目的:
- 监测长期的土地使用动态,并评估RTR中的森林完整性.
- 绘制植被类型,土地使用/土地覆盖 (LULC) 过渡和1980-2022年的碎片化.
- 评估历史种植园对自然森林再生和完整性的影响.
主要方法:
- 使用了多个来源的数据:印度地表调查,Landsat-7,Sentinel-2A,GEDI,CORONA和谷歌地球Pro.
- 采用混合分类方法用于LULC映射和碎片化分析.
- 分析了使用印度森林状况报告 (ISFR) 的十年森林动态.
主要成果:
- 由于人类活动,观察到大量的森林碎片化和息地丧失.
- 在RTR内部的单一种植园 (茶叶树,白树) 和缓冲区的商业种植园 (咖啡,) 表明人类存在.
- 一个多世纪前建立的历史单一种植园尚未恢复为自然森林,这可能会损害森林完整性.
结论:
- RTR 展现出大量的人类足迹,影响其生态完整性.
- 需要制定战略行动计划,以适合本土物种取代非本土单一种植园.
- 应用的方法可用于监测全球其他保护区的类似问题.
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