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首页> 外文期刊>Estuarine Coastal and Shelf Science >Spatial and temporal changes in mangrove cover across the protected and unprotected forests of India
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Spatial and temporal changes in mangrove cover across the protected and unprotected forests of India

机译：印度受保护和未经保护的森林中红树林覆盖物的时空变化

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Mangroves are vulnerable to natural environmental changes and anthropogenic disturbances; but, the status and change dynamics at a national level are poorly understood. Consequently, this research is aimed to assess the changes in major mangrove forests of India between the period of 1989 and 2013, covering an area of 62678 km(2) from five coastal states. Landsat satellite data, post-classification approach, and ground truth verification were used for the mapping of the mangroves and assessing the changes in protected and unprotected forest regions. Our findings revealed that mangrove extent has increased from 3006 km(2) to 3406 km(2) within the period of study. Of the mangrove extent, 91% in 1989 and 80% in 2013 were located in the protected forest regions. The annual average rate of increase in mangrove area was 0.55%/yr. The mangroves gained and lost were 918 km(2) and 517 km(2) respectively, of which 53% of the growth and 81% of the loss occurred in protected regions. Natural factors were responsible for 97% of gain and 92% of the loss of mangrove area. The anthropogenic drivers were responsible for the 8% of mangrove conversion. The extent of mangroves grown was greater than that of deforestation in India, unlike many other shrimp growing countries. The results of the present study indicate the areas of intense change in mangrove forests and also provide important insight into the supportive efforts of mangrove conservation.
机译：红树林易受自然环境变化和人为干扰的影响；但是，人们对国家层面的状况和变化动态知之甚少。因此，本研究旨在评估1989年至2013年期间印度主要红树林的变化，该地区覆盖了五个沿海州的62678 km（2）。 Landsat卫星数据，后分类方法和地面真相验证被用于红树林的制图和评估受保护和不受保护的森林区域的变化。我们的发现表明，在研究期间，红树林的范围已从3006 km（2）增加到3406 km（2）。在红树林范围内，1989年为91％，2013年为80％位于受保护的森林区域。红树林面积的年平均增长率为0.55％/年。红树林获得和丧失的面积分别为918 km（2）和517 km（2），其中增长的53％和损失的81％发生在保护区。自然因素造成了红树林面积增加97％和损失的92％。人为驱动因素造成了红树林转化的8％。与许多其他虾类生产国不同，印度红树林的生长程度大于森林砍伐的程度。本研究的结果表明了红树林的剧烈变化领域，也为红树林保护的支持工作提供了重要的见识。

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