2010 Gridded Livestock of the World (GLW3) - Pigs

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/全球网格化畜禽数据集（Gridded Livestock of the World，GLW3）是一款空间数据集，用于呈现全球主要畜禽品类（牛、绵羊、山羊、猪、鸡、马、水牛、鸭）的空间分布格局。目前该数据集已更新至第三版，其分布数据的基准年份为2010年，空间分辨率为5弧分，在赤道处对应的实地距离约为10公里。在本DA版中，畜禽存栏量通过基于高分辨率空间协变量构建的统计模型生成的权重，在普查多边形区域内实现精细化拆分（即密度加权分配法，dasymetric weighting）。更多详细信息请访问：https://www.fao.org/livestock-systems/global-distributions/en/