ABSTRACT

The current study analyzes the tree diversity and regeneration status of species between repeated forest fires and unburned areas of the tropical dry deciduous forest of Panna Tiger Reserve (PTR), Madhya Pradesh, Central India. Fire frequency maps were prepared with the help of Landsat 5, 7, and 8 satellite images, and the study area was classified into seven fire frequency classes (B1 to B7) and one control class (B0). Five plots were laid in every fire class including the control. A total of 45 tree species belonging to 33 genera and 20 families were recorded during the study period and of these, 44, 26, and 25 species were recorded in the three-growth stages: trees, saplings, and seedlings, respectively. Of the 7873 individuals recorded, 2667, 1243, and 3963 were seedlings, saplings, and trees, respectively. Our results showed that tree species diversity was higher at moderate fire frequencies than controls, but decreased with increasing fire frequency classes. Regeneration of species was significantly different among all fire frequency classes. Certain fire-tolerant species were increasingly dominant with increasing fire frequency classes. With fires left to continue unabated, the dry deciduous forest of the Central Indian region could have lower tree diversity in the future.

摘要

目前的研究分析了印度中部中央邦潘纳老虎保护区 (PTR) 热带干燥落叶林反复森林火灾和未燃烧区域之间的树木多样性和物种更新状态。借助 Landsat 5、7、8 号卫星图像制作火灾频率图，将研究区划分为 7 个火灾频率等级（B1 至 B7）和一个控制等级（B0）。包括控制在内的每个火灾等级都铺设了五个地块。研究期间共记录了33属20科45种树种，其中44种、26种和25种分别处于树木、幼苗和幼苗三个生长阶段。在记录的 7873 个人中，分别有 2667、1243 和 3963 个人是幼苗、树苗和树木。我们的结果表明，在中等火灾频率下，树种多样性高于对照，但随着火灾频率等级的增加而降低。在所有火灾频率等级中，物种的再生有显着差异。随着火灾频率等级的增加，某些耐火物种越来越占优势。由于火势有增无减，印度中部地区干燥的落叶林未来的树木多样性可能会降低。