| 环青海湖地区草地蝗虫发生遥感监测方法研究 |
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| 引用本文： | 邓自旺,周晓兰,倪绍祥,邓自发,谢小玲,屠其璞.环青海湖地区草地蝗虫发生遥感监测方法研究[J].遥感技术与应用,2005,20(3):326-331. |
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| 作者姓名： | 邓自旺 周晓兰 倪绍祥 邓自发 谢小玲 屠其璞 |
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| 作者单位： | (1.江苏省气象灾害重点实验室南京信息工程大学,江苏南京 210044;2.南京师范大学地学院,江苏南京 210093;3.南通师范学院生命科学与技术系,江苏南通 226007) |
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| 基金项目： | 国家自然科学基金项目 49971 0 56，南京气象学院 KL ME开放课题 KJS0 2 1 0 8 |
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| 摘 要： | 为了建立一个用于环青海湖地区草地蝗虫发生空间分布的遥感监测模型,分别在1997年6月下旬到7月上旬、1999年8月中下旬及2000年8月中下旬进行了野外考察,获得了198个蝗虫密度样本资料,收集了同期的TM5遥感图像。通过TM5遥感影像计算了10种植被指数,如归一化植被指数(NDVI)和褐色植被指数(BVI)等。采用统计方法,研究了环青海湖地区草地蝗虫密度(GD)与各种植被指数之间的相关关系。结果表明:尽管GD与10个VI的线性相关并不显著,但GD对NDVI和BVI比较敏感。86%的GD>5头/m2样本出现在满足条件0.2
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| 关 键 词： | 遥感 环青海湖地区 草地蝗虫 |
| 文章编号： | 1004-0323(2005)03-0326-06 |
| 收稿时间： | 2004-09-26 |
| 修稿时间： | 2004年9月26日 |
Monitoring Rangeland Grasshopper Infestation in the Regions around Qinghai Lake by Remote Sensing |
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| DENG Zi-wang,ZHOU Xiao-lan,Ni Shao-xiang,DENG Zi-fa,Xie Xiao-ling,TU Qi-pu.Monitoring Rangeland Grasshopper Infestation in the Regions around Qinghai Lake by Remote Sensing[J].Remote Sensing Technology and Application,2005,20(3):326-331. |
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| Authors: | DENG Zi-wang ZHOU Xiao-lan Ni Shao-xiang DENG Zi-fa Xie Xiao-ling TU Qi-pu |
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| Affiliation: | (1.Jiangsu Key Laboratory of Meteorological Disaster Nanjing University of Information Science&Technology Nanjing210044,China;2.College of Geographic Sciences of Nanjing Normal University,Nanjing210097,China;
3.Department of Life Sciences and Technology of Nantong Normal College,Nantong226007,China) |
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| Abstract: | To develop a remote sensing model for monitoring the spatial distribution of rangeland grasshopper infestation in the regions around Qinghai Lake, 198 site grasshopper density (GD) data, and three TM5 images were collected during the last ten days of June and the first ten days of July in 1997, the middle and last ten days of August in 1999, the middle and last ten days of 2000. Ten vegetable indexes (VI), for example the normalized deviation vegetable index (NDVI) and brown vegetable index (BVI), were calculated from TM5 images. The correlations between the GD and VI were investigated with statistics methods. It shows that though the linear correlation between GD and the ten VI are not significant, GD is sensitive to NDVI and BVI, 86% of high GD samples appear in the span 0.2
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| Keywords: | Remote sensing Regions around Qinghai Lake Rangeland grasshopper |
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