1981-2010年湖南省年均土壤生产潜力数据集

基于1981 年-2010 年年均气象数据（太阳辐射、降水、温度、蒸发量）、土壤数据（肥力、质地、盐碱度）、基础地形（高程、坡度）等，采用生产潜力逐级修订模型，逐步计算得到湖南省1 公里格网的光合生产潜力、光温生产潜力、气候生产潜力和土壤生产潜力数据集。与现实粮食生产力情况相比，数据集具有良好的空间分布一致性，真实有效的反映了湖南省粮食生产潜力分布情况，为湖南省国土资源空间规划、农业生产布局等研究与生产提供重要的数据参考。Based on the annual average meteorological data (including solar radiation, precipitation, temperature and evaporation), soil data (including fertility, texture and salinity-alkalinity) and basic topographic data (including elevation and slope) from 1981 to 2010, the dataset of crop photosynthetic production potential, photo-thermal production potential, climatic production potential and soil production potential on a 1-kilometer resolution grid across Hunan Province was gradually derived using the stepwise revision model of production potential. Compared with the actual grain productivity levels, this dataset exhibits good spatial distribution consistency, accurately and effectively reflects the spatial distribution pattern of grain production potential in Hunan Province, and provides critical data references for research and practical applications such as territorial spatial planning and agricultural production layout in Hunan Province.

搜集汇总

背景与挑战

背景概述

该数据集基于1981-2010年湖南省的气象、土壤和地形数据，利用GIS技术和生产潜力逐级修订模型，计算得到1km分辨率的土壤生产潜力（包括光合、光温、气候和土壤生产潜力）及温度、水分、土壤校正系数，其地理分布与实际作物生产力一致，为区域农业生产潜力评估提供基础数据支撑。