棉 花 学 报 Cotton Science 2007，19(1)：57-63
Studies of Remote Sensing on Monitoring Crop Diseases and Pests Abstract：With the rapid development of information technology，remote sensing，as a fast monitoring means，has been used in monitoring crop diseases and pests in recent years. Some domestic and overseas scholars have had some bold experiments and made a great deal of achievements. Basic theorems of remote sensing of monitoring crop diseases and pests were elaborated in this thesis，meanwhile its characteristics were summarized，and especially recent progresses，then their application prospect was analyzed. The technical methods mostly could be divided into seven parts according to lots of experiments：analytic technology of spectral reflectance，of regression mode，of vegetation index，of derivative spectra，of basic variable of spectral site，of remote sensing image and of multi-angular remote sensing. The critical technology step of monitoring for diseases and pests on crop was introduced. At the same time，some difficulties were analyzed，and progress in this field was looked into as well. With regard to the prospect of remote sensing for monitoring crop diseases and pests， four points were put forward ：1)Basic principle of monitoring crop diseases and pests by near ground remote sensing should be profoundly developed ；2)Lots of experiments of characteristic relation between remote sensing images and crop pests should be studied；3)new methods of monitoring crop diseases and pests should be explored；4)Under the real-time monitoring by remote sensing condition， the information system platform for integrated pest management on plant should be established.
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