基于遥感技术的沙坨草甸交错带玉米农业气象灾害评估——以科尔沁左翼后旗为例  

The Evaluation of Maize Agro-meteorological Hazard Based on RS Technology in Sand-meadow Ecotone——A Case Study of Horqin Left Back Banner

作　　者：李丹[1,2] 陈素华[1] 吴国周[1] 杨丽萍[1] 贾成朕[1] 于轶[3] 

机构地区：[1]内蒙古自治区生态与农业气象中心,呼和浩特010051 [2]南京信息工程大学,南京210044 [3]内蒙古大学,呼和浩特010021

出　　处：《中国农学通报》2014年第29期280-286,共7页Chinese Agricultural Science Bulletin

基　　金：内蒙古自治区科技厅"防灾减灾关键技术研究--内蒙古农用天气预报技术研究"(20120427)

摘　　要：为了评估农业气象灾害对沙坨草甸交错带玉米产量的影响,于2013年灾后在科尔沁左翼后旗进行实地测产,结合遥感估产和生态分类的方法,以遥感图像数据为主,地面测试数据为辅,获取农作物受灾面积,进而对科尔沁左翼后旗玉米进行灾害评估。结果表明,科尔沁左翼后旗农业区各镇玉米地受气象灾害影响程度的大小顺序为:双胜镇>金宝屯镇>查日苏镇,其绝产面积分别达到669.87、55.23和6.77 hm2。玉米产量受损主要受气象灾害影响,除此还与土壤类型、玉米生育期、地形地貌等因素有关。利用玉米长势衰减表现在光谱响应特征差异的特性,估测玉米不同受灾程度的受灾面积成为可能,对于农业上遥感估产具有非常重要的作用。To evaluate the effect of agro-meteorological hazard to the maize yield in sand-meadow ecotone in 2013 after the disaster, the author tested the yield in Horqin Left Back Banner, combined the methods of remote sensing and ecological classification, gave priority to remote sensing image data, which was complemented by the ground testing data to attain the area of crops that damaged, and carried out the disaster assessment in Horqin Left Back Banner. The results showed that in every township of Horqin Left Back Banner agricultural districts, the order of maize yield degree affected by meteorological disasters was： Shuangsheng 55.23 hm2 and 6.77 hm2 disasters, but also by soil of the maize growth vigor reduction which showed that spectral responses characteristic difference, make it possible to estimate the area of maize suffered from disaster of different degrees, which played a very important role for agricultural remote sensing yield estimation.

关 键 词：农业气象灾害 遥感 玉米 评估 

分 类 号：S42[农业科学—植物保护]