Area equipped for irrigation: actually irrigated

Part of the area equipped for irrigation, which is actually irrigated, in a given year. Often, part of the equipped area is not irrigated for various reasons, such as lack of water, absence of farmers, land degradation, damage, organizational problems etc. It only refers to physical areas. Irrigated land that is cultivated twice a year is counted once.
This variable corresponds to the FAOSTAT variable [6611] ""Agriculture area actually irrigated"", whose definition is available here: http://www.fao.org/faostat/en/#data/RL.

指定年度内，已具备灌溉条件且实际开展灌溉的区域面积。部分具备灌溉条件的区域常因各类原因无法实现灌溉，例如水资源匮乏、农户缺位、土地退化、设施损毁以及组织管理问题等。本统计仅针对实体地块，且一年内复种的灌溉耕地仅按一次计算。
本变量对应粮农组织统计数据库（FAOSTAT）的[6611]号变量“实际灌溉农业用地”（Agriculture area actually irrigated），其定义可参阅：http://www.fao.org/faostat/en/#data/RL。