摘要
【目的】运用2011年底发射的国产ZY1-02C卫星P/MS数据,探讨遥感监测草原伪步甲(Prosodes dilaticollis Motsch)生物灾害的可行性。【方法】研究区位于新疆玛纳斯和呼图壁两县草场,采用遥感和GIS技术,在遥感影像预处理的基础上,根据不同目标地物的光谱特征进行监督分类,将研究区内草原伪步甲危害区分为严重危害区、轻度危害区和无危害区3类,并进行精度评价。【结果】解译总体精度最高达74.2%,Kappa系数为0.78,地面实地验证精度为72%。【结论】国产卫星ZY1-02C的P/MS数据监测草原伪步甲生物灾害具有可行性。
【Objective 】The purpose of this study is to investigate the feasibility of monitoring the Prosodes dilaticollis Motsch hazards for grassland by using the domestic ZY1-02 C satellite＇s P / MS data. The study area is located in the Manasi-Hutubi grassland,Xinjiang.【Method】The method for combining remote sensing technique and GIS technique was used based on the preprocessing. of image,and different types were classified by using the supervised classification based on their spectral characteristics. The study area was divided into three types： serious hazard area,mild hazard area and non-hazardous area. 【Result】Finally,we conducted a precision evaluation. The result of accuracy evaluation indicated that overall classification accuracy was 74. 2%,and the overall Kappa coefficient was 0. 78. 【Conclusion】The ground field verification accu-racy was 72% which suggested that remote sensing monitoring of Prosodes dilaticollis motsch hazards for grassland based on ZY1-02 C satellite＇s P / MS data revealed a better feasibility
出处
《新疆农业科学》
CAS
CSCD
北大核心
2015年第3期551-559,共9页
Xinjiang Agricultural Sciences
基金
2013年度水利部公益行业科研专项基金(201301103)
