2015年中国10km空间分辨率粮食生产及可持续性提升潜力

基于遥感数据与统计数据融合产生的耕地产粮、化肥消耗及灌溉耗水数据基础上生成的水稻、玉米和小麦三大主粮作物产量可提升潜力和氮/磷肥可减潜力；空间分辨率为5’ ×5’，输出格式为Tiff。基于遥感数据与统计数据融合产生的耕地产粮、化肥消耗及灌溉耗水数据基础上生成的水稻、玉米和小麦三大主粮作物产量可提升潜力和氮/磷肥可减潜力；空间分辨率为5’ ×5’，输出格式为Tiff。基于MODIS卫星产品及中国地面气象站点数据模拟的东北平原水稻500米分辨率潜在产量及产量差、长江中下游平原水稻500 m分辨率潜在产量及产量差、东北平原玉米1000 m分辨率潜在产量及产量差、华北平原玉米1000 m分辨率潜在产量及产量差、华北平原冬小麦1000 m分辨率潜在产量及产量差结果。采用ALBERS等面积投影，中心经度为127°E，双标准纬线分别为43°N、47°N。东北平原水稻潜在产量及产量差，以500米分辨率输出，共计 2569 × 3259像元；长江中下游水稻潜在产量及产量差，以500m分辨率输出，共2335 × 1796个像元；东北平原玉米潜在产量与产量差以1000 m分辨率输出，共1144 × 1667个像元；华北平原玉米潜在产量与产量差以1000 m分辨率输出，共1014 × 1067个像元；华北平原冬小麦潜在产量与产量差以1000 m分辨率输出，共1035 × 1150个像元。输出格式为GeoTIFF。

Two identical datasets are developed based on integrated remote sensing and statistical data (covering cropland grain yield, fertilizer consumption and irrigation water use), which provide yield improvement potential and nitrogen/phosphorus fertilizer reduction potential for three major staple crops: rice, maize and wheat. Both datasets have a spatial resolution of 5’ ×5’ and are output in TIFF format. Another set of datasets is simulated using MODIS satellite products and ground meteorological station data from China, including potential yield and yield gap of rice in the Northeast China Plain (500 m resolution), potential yield and yield gap of rice in the Middle-Lower Yangtze Plain (500 m resolution), potential yield and yield gap of maize in the Northeast China Plain (1000 m resolution), potential yield and yield gap of maize in the North China Plain (1000 m resolution), and potential yield and yield gap of winter wheat in the North China Plain (1000 m resolution). All datasets adopt the Albers Equal Area projection, with a central meridian of 127°E and two standard parallels at 43°N and 47°N respectively. Specifically, the rice potential yield and yield gap datasets for the Northeast China Plain have 2569 × 3259 pixels at 500 m resolution; those for the Middle-Lower Yangtze Plain have 2335 × 1796 pixels at 500 m resolution; the maize potential yield and yield gap datasets for the Northeast China Plain have 1144 × 1667 pixels at 1000 m resolution; those for the North China Plain have 1014 × 1067 pixels at 1000 m resolution; and the winter wheat potential yield and yield gap datasets for the North China Plain have 1035 × 1150 pixels at 1000 m resolution. All outputs are in GeoTIFF format.

搜集汇总

背景与挑战

背景概述

该数据集提供了2015年中国三大主粮作物（水稻、玉米、小麦）在主要产区的可持续性提升潜力数据，包括产量可提升潜力和氮/磷肥可减潜力，以及潜在产量和产量差。数据基于遥感与统计数据融合生成，覆盖东北平原、长江中下游平原和华北平原，空间分辨率从500米到1000米不等，输出格式为GeoTIFF。