2010 Gridded Livestock of the World (GLW3) - Ducks

Gridded Livestock of the World (GLW3) is a spatial dataset that shows the global distribution of the major types of livestock (cattle, sheep, goats, pigs, chickens, horses, buffalo, ducks). Currently in its third version, the distribution patterns refer to 2010 and are available at a spatial resolution of 5 arc-minutes, approximately 10 km at the equator. In this version (DA), livestock numbers are disaggregated within census polygons according to weights established by statistical models using high resolution spatial covariates (dasymetric weighting). For more information: https://www.fao.org/livestock-systems/global-distributions/en/全球网格化家畜数据集（Gridded Livestock of the World, GLW3）是一套展示全球主要家畜类型空间分布的空间数据集，涵盖牛、绵羊、山羊、猪、鸡、马、水牛、鸭等主要家畜品类。该数据集目前已更新至第三版，其分布格局基于2010年的统计数据，空间分辨率为5弧分，在赤道区域约合10公里。在本DA版本中，家畜数量将通过基于高分辨率空间协变量的统计模型所确立的权重，在普查多边形内部进行空间拆分（密度加权拆分，dasymetric weighting）。更多相关信息可访问：https://www.fao.org/livestock-systems/global-distributions/en/