Study On Economic Suitability Evaluation Of Crops Based On Remote Sensing Data

Crop cultivation is affected by many factors,including planting situation,regional situation,social factors and so on.How can fast accurate evaluation of crop cultivation suitability is a new research hotspot in the field of agriculture.Remote sensing technology is an important means of farmland information,through the use of remote sensing technology can quickly and clearly understand the crop cultivation and growth status,and can timely access the differences of soil status and crop growth in time and space.the accurate access to crop physiological parameters of different growth stages for scientific fertilization and efficient field management is of great significance.And with the augmentation of the remote sensing technology and information processing ability,through the field of remote sensing technology can obtain more information,faster,and more accurate.Manipulation is simple,low cost,safe and reliable is the advantage of remote sensing technology.The purpose of this study is to study the economic evaluation of crop cultivation based on remote sensing data,and to make reference suggestions for crop cultivation in this region,which is based on the evaluation of crop suitability in crop cultivation in YongCheng City,YongCheng City,Henan Province Is the first case.Main conclusions are as follows:(1)According to the crop yield and planting situation of Yongcheng City,combined with crop growth needs and local consultation situation,we finally selected natural factors including geographical climate,soil conditions,environmental factors,social factors including infrastructure,soil pollution and other factors include natural disasters,pests and diseases as indicators of crop economic suitability.(2)Imaging hyperspectral data,based on the ground of low-altitude uav hyperspectral image and space-borne multispectral image data,the integrated use of hyperspectral remote sensing technology,information extraction,statistical analysis and parameter mapping technology,systematic analysis of different crop growth environment,different growth period,the growth condition of different reflection characteristics and environmental factors,soil conditions,the relevance of social economic factors,through clustering analysis,hierarchical analysis,and combining the YongCheng crop conditions and economic benefits in recent years,economic crops suitability evaluation model was constructed.(3)Planting wheat and maize rotation in YongCheng has always been the main way,and it is the main planting method,the area of which accounts for 57.3% of the total cultivated land,followed by 23.4% of the total area of wheat-peanut.The results showed that the yield of wheat-soybean and wheat-peanut was higher than that of wheat-maize.according to human resources situation,The rotation mode of wheat-peanut and wheat-soybean can appropriate promote.(4)Through the grid processing of YongCheng City,seven representative townships were selected,and the collected data were processed to determine the large difference between single elements in each region.It was also an important factor influencing the income.Therefore,the soil was improved,Crop cultivation of elemental reserves is an important factor in increasing land revenue.From the satellite images to obtain the crop environment of YongCheng City,the different objects absorb different peaks of the image processing and found that YongCheng crop cultivation showed massive,grid-like,and the density,more concentrated,very suitable for large-scale mechanized operations,Which provided the reference for the later scale cultivation,mechanization and intensification of crop cultivation.Finally,based on the remote sensing technology,the production of three planting patterns in YongCheng City was studied.The chlorophyll absorption peak was able to intuitively feedback the growth of the crops.After analyzing the chlorophyll content of the three planting methods,Wheat-soybean are more economically appropriate and,in comparison,higher yields.