2010 Gridded Livestock of the World (GLW3) - Chickens

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）是一款展示全球主要畜禽品类（牛、绵羊、山羊、猪、鸡、马、水牛、鸭）空间分布的空间数据集。该数据集目前为第三版，其分布数据对应2010年，空间分辨率为5弧分，在赤道处的近似地面尺度约为10公里。本版本（DA版）中，畜禽存栏量将基于高分辨率空间协变量构建的统计模型所确定的权重，在普查多边形内进行空间分配（采用分区密度加权法，dasymetric weighting）。更多相关信息可访问：https://www.fao.org/livestock-systems/global-distributions/en/