2000年至2018年全球年度陆地人类足迹数据集

人类足迹是指通过改变生态过程和自然景观对生态环境施加的压力，它正在引起全世界对生物多样性和生态保护的关注。由于缺乏长期、时空一致的人类足迹数据集，许多相关研究受到限制。本文，我们使用八个反映人类压力不同方面的变量，绘制了2000年至2018年全球人类足迹的年度动态。精度评估显示，绘制结果与之前在不同年份开发的数据集具有良好的一致性。我们发现，在过去二十年中，超过200万平方公里的荒野（即人类足迹值低于1的区域）消失了。以红树林为主的生物群落经历了最为显著的荒野损失（超过5%），这可能是由于沿海地区人类活动加剧所致。由此得出的年度和时空一致的全球人类足迹可以作为许多关于人类活动和自然资源相关研究的基础数据集。

Human footprint refers to the pressure exerted on the ecological environment by altering ecological processes and natural landscapes, which has drawn global attention to biodiversity conservation and ecological protection. The lack of long-term, spatio-temporally consistent human footprint datasets has constrained a large body of relevant research. In this study, we mapped the annual dynamics of global human footprints from 2000 to 2018 using eight variables that reflect distinct dimensions of human pressure. Accuracy assessments reveal that the mapped results exhibit strong consistency with previously published datasets developed across different years. We found that over 2 million square kilometers of wilderness, i.e., areas with a human footprint value lower than 1, have disappeared over the past two decades. Mangrove-dominated biomes have experienced the most substantial wilderness loss (exceeding 5%), which can be attributed to the intensification of human activities in coastal areas. The resulting annual, spatio-temporally consistent global human footprint dataset can serve as a foundational data resource for numerous studies focused on human activities and natural resource management.

搜集汇总

背景与挑战

背景概述

该数据集提供了2000年至2018年全球陆地人类足迹的年度栅格数据，分辨率为1公里，通过八个变量反映人类对生态环境的压力变化。它填补了长期时空一致数据的空白，可用于生物多样性、生态保护及人类活动影响研究，数据覆盖全球范围并显示过去二十年间荒野面积减少的趋势。