The phenological observation data of main vegetation in Xinjiang in 1980—1990 are analyzed in this paper.The authors conclude that the optimum temporal of forest vegetation is taken in au- tumn,pasture and crops are taken in spring and late summer.
The method,measuring data,results and discussion on algorithm research of vegetative factor for undisturbed areas is introduced.According to measuring data of the annual soil loss and its pa- rameter by means of marked piles,formula of vegetative foctor has been created.It can be used more conveniently on remote sensing monitoring soil loss in comparison with looking for USLE’s C— value table.The C formula is Shown that relation between C value and vegetative cover c is inverse ratio,and change range of C value is 0.45～0 along with change range(0～80%)of vegetative cover c.As compared with measuring annual soil loss(?),the greater part accuracy of monitoring annual soil loss,the greater part accuracy of monitoring annual soil loss exceed 80%,average accuracy is 77.4% or 82.1%.
This paper describes three applications of fractals theory in remote sensing:(i)analyse texture information of remote sensing image,including different images and different cover types;(ii)class auxiliarily remote sensing images,verify the result from spectral classification using analysis of fractals;(iii)simulate remote sensing images,generate remote sensing images using fractal surface gener- ation algorithms based on fractal dimension of real images.
When estimating crop production by remote sensing technology,a key problem is how to acquire crop area of the same year quickly and accurately.This paper centers on determining pure wheat area and mixed wheat area separately in the experiment of winter wheat production estimation by remote sensing technique in Yucheng County.The study takes TM imagery as the main information source, selects suitable date of TM images according to the winter wheat growing feature,creates multi—di mensional green
MRSIPS is a complex system integrated with remote sensing image processing system and geo- graphic information system for remote sensing applications.It provides two main functions:(i)It re- news data in GIS with data of remote sensing.(ii)The complex analysis of the informations from GIS and remote sensing image processing system,so as to increase the classification accuracy of the remote sensing image processing system。
This paper mainly discusses the limit elements and the methods of data conversion between PC ARC/INFO and ERDAS.Meanwhile,it is also discussed that the data storeage formatter and the sig- nificance of the data interchange.
