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解读森林变化:在印度受威胁的景观中,将基于卫星的森林覆盖变化与社区认知联系起来。

Deciphering forest change: Linking satellite-based forest cover change and community perceptions in a threatened landscape in India.

机构信息

Ashoka Trust for Research in Ecology and the Environment (ATREE), Royal Enclave, Sriramapura, Jakkur post, Bangalore, Karnataka, 560064, India.

出版信息

Ambio. 2019 Jul;48(7):790-800. doi: 10.1007/s13280-018-1108-x. Epub 2018 Nov 8.

Abstract

Global conservation efforts have traditionally focused on biodiversity hotspots and other priority landscapes. However, large areas outside priority sites have high conservation value and are referred to as neglected landscapes. The Eastern Ghats of India is an unexplored forest landscape of high conservation value with several endemic and threatened species reported, and is also home to many indigenous forest-dwelling communities. However, it remains a neglected area for conservation and only 3.53% of this landscape is protected. Here, we examine the effectiveness of protected areas in neglected landscapes in preventing forest degradation, and how community perceptions can be used to understand satellite-based landscape change analyses at village level. This study was conducted in Papikonda National park (PNP) and its unprotected buffers in India's Eastern Ghats. Forest degradation was higher in the buffer (32%) than inside PNP (12%) between 1991 and 2014. Communities attributed shifting cultivation, plantations and over-extraction of forest resources as being the major drivers of forest degradation. Community observations of change were not significantly correlated with spatial measures of change. Forest degradation was higher outside the PA at a landscape level and inside the PA at the village level, therefore the PA was effective in reducing degradation at the landscape level but not at the village level inside the PA. We further discuss the role of community observations in interpreting forest degradation in neglected forest landscapes.

摘要

全球保护工作传统上侧重于生物多样性热点地区和其他优先景观。然而,优先地点以外的大片地区具有很高的保护价值,被称为被忽视的景观。印度东高止山脉是一个具有高度保护价值的未被探索的森林景观,据报道有几种特有和受威胁的物种,也是许多土著森林居住社区的家园。然而,它仍然是一个被忽视的保护领域,只有 3.53%的景观得到了保护。在这里,我们研究了被忽视的景观中的保护区在防止森林退化方面的有效性,以及社区的看法如何用于了解基于卫星的景观变化分析在村庄层面上的应用。本研究在印度东高止山脉的 Papikonda 国家公园(PNP)及其未受保护的缓冲区进行。1991 年至 2014 年间,缓冲区(32%)的森林退化程度高于 PNP 内部(12%)。社区认为轮作、种植园和过度开采森林资源是森林退化的主要驱动因素。社区对变化的观察与空间变化衡量标准没有显著相关性。在景观层面上,PA 之外的森林退化程度更高,而在 PA 内部的村庄层面上,PA 降低了退化程度,因此 PA 在景观层面上有效减少了退化,但在 PA 内部的村庄层面上则不然。我们进一步讨论了社区观察在解释被忽视的森林景观中的森林退化方面的作用。

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