2000-2022年全球1公里耕地蒸散发数据集

本数据产品的全球耕地蒸散发（ET）产品呈现。覆盖年份为2000-2022年，空间分辨率为1公里。量化耕地ET的空间分布和变化趋势，作物需水的关键因子，是采取有效的措施提升粮食产量减少水资源利用，实现全球粮食安全以及水资源可持续发展的关键。本数据集揭示了全球耕地ET的精细化空间分布格局和年际变化特征，为理解全球农业生产需水差异性和变化驱动机制提供了重要的数据支撑。该数据集可广泛应用于全球水资源评估以及农业水资源领域，为实现联合国水资源和水环境可持续发展的目标提供了科学依据。This dataset provides global cropland evapotranspiration (ET) products, spanning the years 2000 to 2022 with a spatial resolution of 1 kilometer. As a key factor governing crop water demand, quantifying the spatial distribution and interannual variation trends of cropland ET is critical for implementing effective measures to boost grain yield, reduce water consumption, and ultimately achieve global food security and sustainable water resources development. This dataset reveals the fine-grained spatial distribution pattern and interannual variation characteristics of global cropland ET, offering critical data support for understanding the regional disparities in water demand for global agricultural production and the underlying driving mechanisms of such variations. This dataset has wide applications in global water resources assessment and agricultural water resources research, providing scientific evidence to support the attainment of the United Nations' sustainable development goals for water resources and water environment.

搜集汇总

背景与挑战

背景概述

该数据集覆盖2000-2022年，提供全球1公里空间分辨率的耕地蒸散发（ET）产品，用于量化ET的空间分布和变化趋势，作为作物需水关键因子，支持提升粮食产量和水资源可持续利用。它揭示了ET的精细化格局和年际变化，为全球农业生产需水差异性和驱动机制研究提供数据支撑，广泛应用于水资源评估和农业领域，助力实现联合国可持续发展目标。