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研究确定保护生物多样性所需的最小土地面积
作者:小柯机器人 发布时间:2022/6/4 23:35:03

荷兰阿姆斯特丹大学James R. Allan及其研究团队的最新研究认为需要关注保护生物多样性所需的最小土地面积。这一研究成果于2022年6月2日发表在国际学术期刊《科学》上。

在本研究中,研究人员评估了确保生物多样性区域、生态完整区域以及代表物种范围和生态区域最优状态的最小土地面积。研究发现至少有6400万平方公里(占陆地面积的44%)需要特别考量(从保护区到土地使用政策)以实现这一目标。超过18亿人生活在这些土地上,因此推出自治、自决、公平和可持续管理应对措施对于保护生物多样性至关重要。空间明确的土地利用情景表明,到2030年,在这6400万平方公里中约130万平方公里的土地面临转化为人类集中利用的风险,这需要立即引起高度关注。

然而,在乐观和悲观的土地利用情景中,栖息地转化数量存在七倍的差异,这凸显了避免这场危机的可能。2020年后全球生物多样性框架中旨在鼓励保护已确定土地适当利用的政策,将大大有助于保护生物多样性。

据介绍,需要更多的保护工作来阻止全球生物多样性危机。

附:英文原文

Title: The minimum land area requiring conservation attention to safeguard biodiversity

Author: James R. Allan, Hugh P. Possingham, Scott C. Atkinson, Anthony Waldron, Moreno Di Marco, Stuart H. M. Butchart, Vanessa M. Adams, W. Daniel Kissling, Thomas Worsdell, Chris Sandbrook, Gwili Gibbon, Kundan Kumar, Piyush Mehta, Martine Maron, Brooke A. Williams, Kendall R. Jones, Brendan A. Wintle, April E. Reside, James E. M. Watson

Issue&Volume: 2022-06-03

Abstract: Ambitious conservation efforts are needed to stop the global biodiversity crisis. In this study, we estimate the minimum land area to secure important biodiversity areas, ecologically intact areas, and optimal locations for representation of species ranges and ecoregions. We discover that at least 64 million square kilometers (44% of terrestrial area) would require conservation attention (ranging from protected areas to land-use policies) to meet this goal. More than 1.8 billion people live on these lands, so responses that promote autonomy, self-determination, equity, and sustainable management for safeguarding biodiversity are essential. Spatially explicit land-use scenarios suggest that 1.3 million square kilometers of this land is at risk of being converted for intensive human land uses by 2030, which requires immediate attention. However, a sevenfold difference exists between the amount of habitat converted in optimistic and pessimistic land-use scenarios, highlighting an opportunity to avert this crisis. Appropriate targets in the Post-2020 Global Biodiversity Framework to encourage conservation of the identified land would contribute substantially to safeguarding biodiversity.

DOI: abl9127

Source: https://www.science.org/doi/10.1126/science.abl9127

 

期刊信息
Science:《科学》,创刊于1880年。隶属于美国科学促进会,最新IF:41.037