相关实验视频

Updated: Jul 13, 2025

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Published on: September 12, 2017

高分辨率地图显示,造成大量森林砍伐

Yunxia Wang¹, Peter M Hollingsworth², Deli Zhai³

¹Royal Botanic Garden Edinburgh, Edinburgh, UK. wangyx.tina@outlook.com.

|October 18, 2023

概括

东南亚的天然产量被低估了. 新的卫星地图显示森林损失至少是之前报告的两倍,

科学领域:

环境科学
遥感技术
生态学

背景情况:

由于缺乏高分辨率的全球地图,
之前对天然的森林砍伐估计有很大差异,导致政策制定不确定.
了解天然扩张对环境的影响对于保护工作至关重要.

研究的目的:

使用地球观测卫星数据制作东南亚天然种植园和相关森林砍伐的高分辨率地图.
准确量化天然扩张造成的森林损失程度.
提供可靠的数据,为有关天然生产的政策,贸易协定和尽职调查立法提供信息.

主要方法:

使用高空间分辨率的地球观测卫星数据 (10米,砍伐森林30米).
使用云计算处理东南亚地区大量卫星图像.
开发和应用直接遥感观测方法,绘制和森林砍伐的地图.

主要成果:

创建了高分辨率地图,显示了与相关的森林损失在以前的报告和政策数据中被严重低估.
直接的遥感观测显示, 的森林砍伐至少比广泛引用的数字高两到三倍.
自1993年以来,超过400万公的森林丧失,在关键生物多样性地区有超过100万公的种植园.

结论:

天然扩张对东南亚生物多样性和生态系统服务的环境影响很大,而且可能被低估.
目前的政策和公众对天然的森林砍伐足迹的理解需要根据直接观察数据进行重大修订.
自然生产应在国内政策,国际贸易协定以及即将颁布的尽职调查法规中得到更多关注, 以减轻其对环境的影响.

更多相关视频

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

Published on: October 16, 2018

Mycorrhizal Maps as a Tool to Explore Colonization Patterns and Fungal Strategies in the Roots of Festuca rubra and Zea mays

Mycorrhizal Maps as a Tool to Explore Colonization Patterns and Fungal Strategies in the Roots of Festuca rubra and Zea mays

Published on: August 26, 2022

相关概念视频

Threats to Biodiversity

Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...

Habitat Fragmentation

Habitat Fragmentation

Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.

Responses to Drought and Flooding

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.