The Development Of Sichuan And The Change Of Ecological Environment Since 1368

Since ancient times,there has been an objective relationship between human development and ecological environment.The transformation of nature is the necessary process of human civilization.Since 1368 in Nanchong human development and ecological environment change research in the academic community in a relatively weak area,this article intends to start from the perspective of human development and environment interaction,and strive to recover since 1368 to history,human development and ecological environment in contemporary Nanchong area changes,and to find out the relationship between human development and environment changes of the two.This article is composed of two parts:introduction and text.In the introduction,the scope of space on this article research content and time restrictions,and the background and meaning of this thesis expounds the academic value and practical significance,reviews the research status of the topic in the academic circles.The body parts are from five aspects:the first chapter,starting from the natural geographical environment in Nanchong area and administrative divisions,supplemented by the overview before 1368 in the region ecological environment,provide geographical background,spatial location and contrast range for the study.The second chapter to the five chapter,combined with the literature,back in Ming and Qing Dynasties to contemporary Nanchong area ecological environment changes in the background,characteristics of ecological environment in Nanchong area of each period and the period before the environmental performance to make the comparison,because from the Nanchong area since the Ming and Qing Dynasties are the military battle,so with the flow of population,economic development,the change of biological resources to reflect the environmental change in Nanchong area during this period,the combination of contemporary Nanchong ecological environment are discussed,and gives the area of Nanchong County,city and district environmental protection strategy.Through the research,since 1368 in Nanchong region in the context of human action,process development process experienced a slow recoveryand development climax of development back to slow-slow recovery ",accompanied by the ecological environment has experienced a" transition process of partial recovery failure part of recovery",of which there are two important in time,these time periods with gradual changes since the Ming and Qing Dynasties,social and population development of agriculture and biological resources in the area of change,these are important factors that cause the ecological environment change,fully explain the human must take appropriate principle at the same time to the natural development,more than a certain the threshold of ecological environment will not recover,it brings negative effects will be huge,even destructive.