基于EOS/MODIS数据的抚远县水稻面积提取技术研究

为获取黑龙江省大范围的水稻种植空间分布及面积等信息,指导水稻生产,以抚远县为研究区域,利用EOS/MODIS数据进行水稻面积提取研究。结果表明:抚远县水稻面积309 513.32hm2。水稻种植区域精度较高的图框区域集中在抚远县中部及南部地区,这些地区水稻种植比较集中,且所占比例很高,其它作物较少,对混合像元的精度影响小;精度较低的图框主要集中在北部地区,这与实际情况相符合,水稻种植较零散且其它混种作物种类及荒草类别比较复杂,混合像元分类精度较低。

Study on Extraction of Rice Areas in Fuyuan County Based on EOS/MODIS Data

In order to obtain the information about spatial distribution and cultivation area of rice in Heilongjiang province, which could guide rice production, taking Fuyuan county as research object, the study on estimating rice planting area were carried out through EOS/MODIS data. The results showed that the rice planting area of Fuyuan county was 309 513.32 hm^2. The high precision areas of rice planting were concentrated in the central and south of Fuyuan county,which had a high proportion of phase and less other crops,it had little influence on the accuracy of the mixed pixels. The low precision areas of rice planting were concentrated in north of Fuyuan county,which was consistent with actual situation, rice planting in these area were more scattered, other species of crop were more complex,so the classification accuracy of mixed pixels was low.