摘要
以早稻种植面积调查为例,探讨并实践了快速提取农作物种植面积相对变化率的方法。选取湖北省东部黄梅县的一个区域,以分辨率为10 m的SPOT5影像为遥感解译数据源,结合GPS实测地面样方建立解译标志数据集,进行人机交互式分类,分别得出2010年和2011年解译区的早稻种植面积,再对比分析得出这2年湖北省早稻种植面积的相对变化率。结合解译区的实际情况,分析了黄梅县早稻播种面积变化的原因。
Taking the survey of early season rice planting area for an example, this paper explored and practiced a method of rapid extraction of the relative change rate of crop planting area. This paper selected an area of Huangmei Country in the east of Hubei Province as study area and chosen SPOT5 images at a resolution of 10 meters as remote sensing data sources, combined ground samples measured by the GPS to establish interpretation signs database. Using the manmachine interactive classii cation, this paper obtained the early season rice planting area of interpreting area in 2010 and 2011. Through comparing and analyzing the relative change rate of early season rice planting area in Hubei Province in the two years and combining the real situation of interpreting area, this paper analyzed the reasons of the area change of early season rice planting in Huangmei Country in the east of Hubei Province. Practical results show that the method put forward by the paper is simple, ef ective and feasible.
出处
《地理空间信息》
2014年第1期98-100,11,共3页
Geospatial Information
基金
国家自然科学基金资助项目(41071240)
