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Conflict between conservation and development: cash forest encroachment in Asian elephant distributions

机译:保护与发展之间的冲突:亚洲象分布中的现金森林侵占

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摘要

Over the last 4 decades, China has undergone major economic development, resulting in considerable impacts on its wildlife populations and habitats. It is essential to quantify the conflict between development and conservation to assist with policy-making because forestry policies and market trends affected indirectly the distribution of Asian elephants. Here, we mapped the historical distribution of elephants versus human land use. Elephant distributions appear to occur in unbroken natural forests only. However, over the 40-year period, the distribution ranges have become smaller and fragmented, with natural forest area also declining by 16%. The monoculture of cash trees is encroaching on natural forests. Over the past 10 years, rubber plantations have become concentrated in the south, with extensive natural forests and scattered rubber farms being converted to tea plantations, due to changes in governmental policies and product prices. Through mapping the spatial changes in the distribution of rubber and tea plantations, our study is expected to help local managers to incorporate the needs of endangered elephants through creating space when planning plantations, especially in Xishuangbanna and the south part of Pu’er. In conclusion, restoring elephant habitat and establishing ecological corridors are critical for the survival of elephants in this region.
机译:在过去的40年中,中国经历了重大的经济发展,对其野生动植物种群和栖息地产生了巨大影响。量化发展与保护之间的冲突以协助决策至关重要,因为林业政策和市场趋势会间接影响亚洲象的分布。在这里,我们绘制了大象与人类土地利用的历史分布。大象分布似乎只发生在未破裂的天然森林中。但是,在40年的时间里,分布范围变得越来越小,越来越分散,天然林面积也减少了16%。经济树的单一种植正在蚕食天然林。在过去的10年中,由于政府政策和产品价格的变化,橡胶种植园已集中在南部,大量的天然林和分散的橡胶农场被转变为茶园。通过绘制橡胶和茶园分布的空间变化图,我们的研究有望帮助当地管理人员通过在规划种植园时创造空间来满足濒危大象的需求,尤其是在西双版纳和普er南部。总之,恢复大象的栖息地并建立生态走廊对于该地区大象的生存至关重要。

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