Study On The Influencing Factors Of Ground Water Environmental Economic Development Of Yulin City With The Landscape Ecology Based On Structural Equation Model

Yulin city with abundant mineral resources exploitation, the rapid development of the local economy, city level also to speed up the process, regional demand for water resources is more and more high, due to the local area to take advantage of the surface water resources are limited, so the economic construction on groundwater resources depend more strongly. The scope of Yulin City, the relationship between social economy, landscape ecological pattern and groundwater environment perplexing, many factors affecting the groundwater environment, research the relationship between groundwater environment and social economy development, ecological landscape pattern change, the key factors between the proven three, has a profound guiding significance for now and the future development of Yulin city.In this paper, the use of structural equation model of Yulin city is the influence factors of groundwater environmental quality. We first construct Yulin city structural equation model, has been clear about the social and economic development, landscape ecological pattern and groundwater environment for the latent variable model, based on the previous studies selected social and economic development, the impact on the groundwater environment measure; based on the processing of remote sensing image on the reasonable selection of extraction of landscape index as the corresponding measurement index of landscape ecology pattern; selects 12 counties of Yulin city in 2010 the corresponding measurement index data as the model sample, using the bootstrap method of the original sample data is expanded and normal data, in order to meet the requirements of the model. On this basis, the measurement index of each latent variable and its corresponding to verify the analysis, measurement index to measure the latent variable from unreasonable, then all the latent variables and measured variables to construct the structure equation model. the model can be obtained from the path coefficients and all measured variables between the latent variables of the groundwater environment latent variable load value, so as to clear the effect of the relationship between them and the influence degree. The research results show that:the degree of influence of the path coefficient of landscape pattern on the groundwater environment is greater than the social and economic development; a series of regional economic gross index in the development of social economy, the fractal dimension of landscape pattern, patch diversity and fractal dimension, the groundwater environment in the underground water amount index of groundwater, the remaining coefficients, the larger on the value of groundwater environmental impact load, so the degree of influence is greater. Finally, according to the model expression results。...