Google Earth Engine——2001年的原始森林范围数据集是利用全球获得的、免费的、经过一致处理的Landsat图像，30米的空间分辨率

Primary humid tropical forests provide numerous global ecosystem services, but are under continuing threat of clearing from economic drivers. To facilitate national land use planning and balancing the goals of economic development and maintenance of ecosystem services, a primary humid tropical forest map was created by the UMD GLAD team. The primary forest extent was mapped for the year 2001 at a spatial resolution of 30 meters using globally acquired, free-of-charge, and consistently processed Landsat imagery.

原始湿润热带森林提供了众多的全球生态系统服务，但在经济驱动力的作用下，持续受到清除的威胁。为了促进国家土地使用规划，平衡经济发展和维护生态系统服务的目标，UMD GLAD团队绘制了一张原始湿润热带森林地图。2001年的原始森林范围是利用全球获得的、免费的、经过一致处理的Landsat图像，以30米的空间分辨率绘制的。

Dataset Availability

2001-01-01T00:00:00 - 2002-01-01T00:00:00

Dataset Provider

UMD/GLAD

Collection Snippet

ee.ImageCollection("UMD/GLAD/PRIMARY_HUMID_TROPICAL_FORESTS/v1")

Resolution

30 meters

Bands Table

Class Table: Primary_HT_forests

引用：

Turubanova S., Potapov P., Tyukavina, A., and Hansen M. (2018) Ongoing primary forest loss in Brazil, Democratic Republic of the Congo, and Indonesia. Environmental Research Letters. Ongoing primary forest loss in Brazil, Democratic Republic of the Congo, and Indonesia - IOPscience

代码：

var dataset = ee.ImageCollection("UMD/GLAD/PRIMARY_HUMID_TROPICAL_FORESTS/v1");

var visualization = {
  bands: ['Primary_HT_forests'],
  min: 1.0,
  max: 1.0,
  palette: ['008000']
};

Map.setCenter(0.0, 0.0, 2);

Map.addLayer(dataset, visualization, "Primary HT forests");