GIS支持下的复杂地形区冬小麦长势遥感监测方法

不同的地形，地貌和气候生态系统对小麦生长发育影响很大，也限制了小麦长势卫星遥感监测的精度。在分析豫西半山丘陵区不同地形（河川、丘陵）和气候生态条件（水热条件）对小麦生长影响的基础上，基于ＥＰＰＬ７地理信息系统（ＧＩＳ），采用扫描、数据格式转化，建立数据库等方法，将ＮＯＡＡ／ＡＶＨＲＲ遥感资料和地形图，土壤图，年降水量图，年平均气温图，政区图等图件集成起来，并进行了监测区分层；根据系统监测和抽样调查

The Monitoring Method of Winter Wheat Growing Vigor by Remote Sensing in Complicated Topographical Regions Based on GIS

The growing vigor of winter wheat is seriously affected by different topography,geomorphology and climate ecological conditions,and the monitoring accuracy of remote sensing is also limited by them. Based on the influence analysis of different topographical and climate ecological conditions to wheat growing vigor,NOAA/AVHRR data and topography map,soil map,year rainfall map,mean yearly temperature map,administrative area map etc. were integrated and the monitoring region was divided into several layers by means of the methods of scanning,data format transiting and database creating etc. based on EPPL7 GIS tools. The monitoring indexes of wheat growing vigor within different layers were acquired by systematic observed data and random investigating data. The mean monitoring accuracy of 8% was improved by excluding non wheat cells and distinguishing layers. The basic integrating application of GIS and RS was realized with some connection software.