Study On The Evaluation Method Of The Environment Fitness Of Pheterophylla Place Of Production In Guizhou

GIS technology and a variety of mathematical models based on the experience index and method,statistical method,fuzzy mathematics method and artificial neural network method to study the complicated environment and environmental suitability evaluation of Radix Pseudostellariae heterophylla,and by planting district level indicators to the assessment results from accuracy test,to further improve the evaluation theory,the method of regional environmental conditions and complex geographic environment.On this basis,in Shibing County of Guizhou province Pseudostellariae heterophylla cultivation as an example,combined with the comprehensive evaluation of effects of Radix Pseudostellariae heterophylla climatic factors,topography,soil conditions and infrastructure quality cultivation and planting suitability from the planting division.Based on the GIS technology platform,the empirical index and the method are the spatial weighted superposition of the factors that influence the degree of environmental suitability,and the comprehensive suitability grade [1] is obtained.However,due to the spatial distribution dispersion of the sample data,the spatial distribution of the actual geographical elements is continuous.As a result,the environmental suitability factor and the error of the factor layer are larger.Based on the GIS platform,the Shibing County Cultivated Land and county scale environment suitability evaluation map superposition based on the obtained suitability evaluation of cultivated land from map based on environment.The spatial interpolation simulation of geostatistics method through the exploration of the index based on the data,according to the distribution characteristics of different elements of index data,the mathematical model of spatial interpolation suitable distribution index data,better able to express the elements value distributionof space continuity,which accords with the actual situation of the elements.Therefore,the intervention of geostatistics improves the accuracy of environmental suitability evaluation,and it is the basic data analysis process that must be considered in the process of land environment suitability evaluation.Previous geostatistical methods did not explore the weights of environmental suitability factors.The method of fuzzy mathematics involved,through the fuzzy clustering of index data analysis,and ultimately determine the environmental impact factor weights,and experience in the index and the law on the basis of comprehensive evaluation of the final completion of the suitable environment for Radix Pseudostellariae heterophylla,avoid artificial scoring subjectivity,which makes the suitability evaluation result is more objective,more in line with the actual situation.Based on the GIS platform,the Shibing County Cultivated Land and county scale planting Pseudostellariae heterophylla environment based on suitability evaluation of overlay,get the suitability evaluation of cultivated land types from the environment map based onA new method of strong basic structure and function to deal with high-dimensional nonlinear and higher-order information problem as a kind of artificial neural network to imitate human brain,intelligence is the computer network system simulation of biological neural network computing system,is on human or natural neural network to the basic characteristics of abstract and simulation [3].Through the research of this method,it is found that the neural network method is suitable for the comprehensive evaluation of environmental suitability,and it has high speed and high efficiency.However,the actual evaluation results show that the comprehensive evaluation accuracy is not as optimistic as the speed.The results of the survey were conducted in the 2014 study area of 200 Pseudostellariae heterophylla samples from eight towns in the study area and the evaluation results of different data processing.Pseudostellariae heterophylla quality inspection results show that the examined from Shibing county in 200 samples of Pseudostellariae heterophylla inspection,including 41 samples quality optimal,92 samples are of good quality,quality 45 samples,the remaining 22 samples quality is poorer.Therefore,it is concluded that the planting environment of the crown prince in Shibing county is 89% suitable for planting area environment,which is not suitable for the area environment of the crown prince.Based on the empirical index and the method of environmental suitability evaluation,the actual compliance rate is 72.47%,and the actual verification rate is27.53%.Based on geostatistics,the actual rate of environmental suitability assessment was 89.21%,and the actual rate of compliance was 10.79%.Based on the fuzzy clustering method,the environmental suitability evaluation results are in accordance with the actual rate of 85.37%,and the actual verification rate is 14.63%.The actual verification rate of environmental suitability evaluation results based on artificial neural network is 75.29%,and the actual verification rate is 24.71%.This paper based on the experience and method,statistical method and fuzzy mathematics method and artificial neural network method of the comparison of the four environment suitability evaluation method,and the involved in the study area in2014 eight villages and towns of the level of 200 samples of Pseudostellariae heterophylla index test results,ultimately selected statistical methods for Shibing county environmental suitability evaluation method is the optimal method.