高分辨率的 21 世纪全球森林覆盖变化地图集。

High-resolution global maps of 21st-century forest cover change.

机构信息

Department of Geographical Sciences, University of Maryland, College Park, MD 20742, USA.

出版信息

Science. 2013 Nov 15;342(6160):850-3. doi: 10.1126/science.1244693.

Abstract

Quantification of global forest change has been lacking despite the recognized importance of forest ecosystem services. In this study, Earth observation satellite data were used to map global forest loss (2.3 million square kilometers) and gain (0.8 million square kilometers) from 2000 to 2012 at a spatial resolution of 30 meters. The tropics were the only climate domain to exhibit a trend, with forest loss increasing by 2101 square kilometers per year. Brazil's well-documented reduction in deforestation was offset by increasing forest loss in Indonesia, Malaysia, Paraguay, Bolivia, Zambia, Angola, and elsewhere. Intensive forestry practiced within subtropical forests resulted in the highest rates of forest change globally. Boreal forest loss due largely to fire and forestry was second to that in the tropics in absolute and proportional terms. These results depict a globally consistent and locally relevant record of forest change.

摘要

尽管森林生态系统服务的重要性已得到认可,但全球森林变化的量化工作仍一直欠缺。在本研究中,我们利用地球观测卫星数据,以 30 米的空间分辨率绘制了 2000 年至 2012 年期间全球森林损失(230 万平方公里)和增加(80 万平方公里)的地图。在所有气候区域中,只有热带呈现出一种趋势,每年森林损失增加 2101 平方公里。巴西有记录的森林砍伐减少,被印度尼西亚、马来西亚、巴拉圭、玻利维亚、赞比亚、安哥拉和其他地方的森林损失增加所抵消。亚热带森林中实行的集约林业导致了全球森林变化的最高速度。主要由于火灾和林业造成的北方森林损失在绝对值和比例上仅次于热带地区。这些结果描绘了全球一致且与当地相关的森林变化记录。

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