Africa Crop Maize - Harvested Area

Retirement Notice: This item is in mature support as of April 2025 and will be retired in December 2026. New data is available for your use directly from the Authoritative Provider. Esri recommends accessing the data from the source provider as soon as possible as our service will not longer be available after December 2026. Maize (Zea mays), also known as corn, is a crop of world wide importance. Originally domesticated in what is now Mexico, its tolerance of diverse climates has lead to its widespread cultivation. Globally, it is tied with rice as the second most widely grown crop. Only wheat is more widely grown. In Africa it is grown throughout the agricultural regions of the continent from the Nile Delta in the north to the country of South Africa in the south. In sub-Saharan Africa it is relied on as a staple crop for 50% of the population. Dataset Summary This layer provides access to a5 arc-minute(approximately 10 km at the equator)cell-sized raster of the 1999-2001 annual average area ofmaize harvested in Africa. The data are in units of hectares/grid cell. TheSPAM 2000 v3.0.6 data used to create this layerwere produced by the International Food Policy Research Institute in 2012.This dataset was created by spatially disaggregating national and sub-national harvest datausing the Spatial Production Allocation Model. Link to source metadata The source data for this layer are available here.停用通知：本项目自2025年4月起进入成熟支持阶段，并将于2026年12月正式停用。新数据可直接从权威提供方获取。Esri建议您尽快从源提供方访问该数据，因为本服务在2026年12月后将不再可用。 玉米（Maize, Zea mays），亦称玉蜀黍，是全球具有重要地位的农作物。其最初的驯化区域为现今的墨西哥境内，凭借对多样气候的适应性，现已实现广泛种植。在全球范围内，其种植面积与水稻并列第二，仅低于小麦。在非洲大陆，该作物从北部的尼罗河三角洲延伸至南部的南非共和国，在所有农业区域均有种植。在撒哈拉以南非洲地区，它是50%人口依赖的主粮作物。 数据集摘要 本图层提供1999-2001年非洲玉米收获面积年平均值的5弧分栅格数据，该栅格单元在赤道处的尺寸约为10公里，数据单位为公顷/栅格单元。本图层所使用的SPAM 2000 v3.0.6数据由国际粮食政策研究所于2012年发布。本数据集通过空间生产分配模型（Spatial Production Allocation Model）对国家级及次国家级收获面积数据进行空间离散化处理后生成。 源元数据链接 本图层的源数据可在此处获取。