辽宁省作物长势遥感评价方法  

Remote Sensing Evaluation Method of Crops Growing Trend in Liaoning Province

作　　者：武晋雯[1] 张玉书[1] 冯锐[1] 纪瑞鹏[1] 张淑杰[1] 孙龙彧[2] 陈鹏狮 

机构地区：[1]中国气象局沈阳大气环境研究所,辽宁沈阳110016 [2]沈阳市气象局,辽宁沈阳110168 [3]辽宁省气象局,辽宁沈阳110016

出　　处：《安徽农业科学》2009年第36期18104-18107,共4页Journal of Anhui Agricultural Sciences

基　　金：中国气象局风云卫星遥感开发与应用示范项目(FiDAF-2-06);中国气象局新技术推广项目(CMATG20092D04);"十一五"国家科技支撑计划重点项目(2006BAD04B02);辽宁省气象局农田MODIS植被指数时间序列的构建项目

摘　　要：利用1999～2007年5月下旬～9月下旬每天的NOAA数据资料,以归一化植被指数(NDVI)为评价指标,提取辽宁省5个气候区208个旱田点、84个水田点的NDVI值,通过对各统计单元的作物生长趋势分析及逐年比较模型、距平比较模型等遥感评价模型的研究,结果表明,辽宁省作物生长曲线呈单峰形变化,2007年旱田植被指数8月下旬达到最大,水田植被指数8月上旬达到最大;受干旱影响除2007年6月中下旬及9月中旬外,大田作物长势明显好于2006年同期和历史同期;水田作物长势基本好于历史同期。Using the daily NOAA data information of late May to September in 1999-2007,and taking NDVI as the evaluating indicator, through the study on the remote sensing evaluation model,such as crop growth trend,year by year comparison model and anomaly comparison model of each statistical unit.The results showed that the crop growth curve showed a single peak shape changes in Liaoning,and the dry farmland vegetation index reached max in late August in 2007,and the paddy field vegetation index reached max in early August;dry land crop growth had obvious better than it in the same time last year and historical same time except late-June and mid-September affected by drought;the trend of paddy crop growth had almost better than it in historical same time.

关 键 词：作物长势 NDVI 遥感 趋势 辽宁省 

分 类 号：S127[农业科学—农业基础科学]