An Eco―city Both Inside and Outside.docVIP

An Eco―city Both Inside and Outside 　　 　　Located fifty kilometers to the south of state of California， America is a city with an area of 88 square kilometers and a population of less than 180000. Small as the city is， there are 7 main expressways， which connect the city to other cities of Orange County. As the safest business area with the most complete planning and best natural environment of America， it has attracted a large number of residents and become the most important high-tech industrial center of Orange County. It is one of the communities with best overall planning in America-- Irvine California Eco-city. 　　 　　 　　An eco-city with complete planning 　　 　　 　　Why is the city of Irvine so attractive？ Irvine occupies an extensive area， which covers 9 miles of the coastline along the Pacific Ocean and extends inwardly 22 miles from the coastline. It is rich in geological and natural resources. Irvine can be divided into three parts based on the topography： the southern coastal area， the central area and the northern alpine area. The southern and northern areas have the most abundant natural resources. Its ecological protection area is of 50 thousand acres. 　　For the ecologically fragile areas， a three-level system of large-scale nature reserves， city parks and public lawn of community has been adopted to ensure the continuity and integrity of the ecological protection zone. For example， setting up large-scale reserves in the areas where the ecological environment is fragile and city park in built-up area to protect smaller communities. In addition， in order to develop a complete environment system， in every large residential area or community there are public lawn and water surface. These beautify the city environment and provide lot of space for residents to get close to nature and have outdoor activities. 　　 　　 　　Ecological communitis with low density and diversity 　　 　　 　　In order to reduce the effect of human activities on the natural env