| Nature is the material foundation of human survival and development and the basic conditions.In the past for a long period of history,human beings that have natural resources and function is the inexhaustible,inexhaustible.With the development of the second industrial revolution,human activities scope expands unceasingly,to exploit and utilize nature degree deepening,the accelerating the urbanization development speed and cause a great change of the land use structure,which affect the nature of ecosystem services and function change.Leads to the deterioration of the ecological environment quality,such as soil erosion,desertification,the greenhouse effect,biological diversity in the.ecological environment problems?Now in the social economy high speed development period in China,with the accelerating urbanization process,again,in the process of urban activities and ecological environment to produce all kinds of contradictions.The one-sided emphasis on economic development,the government and the enterprises ignore the resulting destruction of ecological environment.Since Constanza proposed quantitative research theory and methods of the ecosystem services value,the human is no longer just a qualitative study of the relationship between economic development and ecosystem services.Quantitative evaluation of ecosystem service function become a research hotspot at home and abroad,experts and scholars in different areas,from different perspectives and research scale,a review on the ecosystem service value,theory and time results are quite rich,but for the county small scale of the ecosystem services value assessment is relatively small.In addition,the binding between urbanization and the ecosystem services and stress of the relationship between the complex and changeable,therefore,the quantitative research of urbanization and the ecosystem service function of the coupling between the coordination relation has important theoretical and practical significance.using the transfer matrix of land use,land use degree composite index and the analysis of landscape pattern index analysis of land use change regularity of changting county;Using the data of land use change and xie upland ecosystem service value coefficient of equivalent evaluation of changting county ecosystem services value;Application of spatial lorenz curve model of spatial autocorrelation analysis changding space-time evolution characteristics of ecosystem services value;In evaluation of changting county urbanization level,on the basis of quantitative analysis of changting county urbanization and ecosystem services two coupling coordination degree of the subsystem,the results show that:(1)2000-2014,changting county land use type change is bigger,transfer maximum 5246.17 hectares of farmland to urban land;2000-2014,the township of land use degree comprehensive index is more than 2.0,the degree of land use of the changting county at a higher level;Analysis of landscape pattern index in 2000-2014,the results show that changting county landscape pattern from the integrity of the structure,the stability is improved.(2)2000-2014,changting county ecosystem services value overall showed a trend of decrease,study period by around 213 million yuan;Forests provide ecological services value proportion is the largest,accounting for about 84.71%to 86.35%of the total value of soil formation and protection of ecosystem services value was always the highest;During the study period,changting county total ecosystem service function value center of gravity migration patterns from northeast to southwest migration trend as a whole.(3)the changting county changting county urbanization level significantly increased from 2000 to 2014,the urbanization level of composite index rose from 0.11 in 2000 to 0.85 in 2014.Changting county urbanization coordinated with the service function of ecosystem coupling effect are mainly composed of medium and strong relationship. |
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