关中西部灌区冬小麦遥感估产初探  

Application of remote sensing in estimating yield of winter wheat in west part of central Shaanxi

作　　者：张智韬[1] 李援农[1] 陈俊英[1] 刘昕[1] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100

出　　处：《干旱地区农业研究》2005年第5期187-190,共4页Agricultural Research in the Arid Areas

基　　金：国家863计划"现代节水农业技术及新产品"专项(2002AA2Z4041)及"数字化渠系平台建设与精准灌溉管理决策应用"(2003AA209040)。

摘　　要：根据冬小麦生长特点与产量的关系,认为小麦扬花期至灌浆期为最佳监测时期,利用遥感影像(TM)进行了绿度指数(GDVI)计算与分析,建立了GDVI与小麦产量的关系,完成了小麦估产。通过与实际产量进行比较,其估产精度可达88.90%以上。According to the relationship between the growing characters and yield of winter wheat, it was determined that the best stage to monitor the yield by remote sensing was from blossom to filling. GDVI was derived and analyzed from the TM image, and the model was set up to express the relation between GDVI and yield of wheat, which was available to accomplish the estimation of yield. The results showed that the estimating precision was more than 88.90%.

关 键 词：遥感 估产 绿度指数 冬小麦 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]