Carbon Sink Of Terrestial Vegetation In Qinhuang Insland Of China

Terrestrial vegetation are those with dominant species and the same appearance on its biological and ecological characteristics. They can be divided into seven vegetation types such as: coniferous forest, broad-leaved forest, scrub, desert and xeric shrubland, grassland, meadows and marshes. The resources and benefit in forest ecosystem, farmland ecosystem, wetland ecological system of Qinhuangdao city were analyzed. The exsited problems in the forest, farmland, wetland ecological system were probedin-depth. In the forest ecosystem Qinhuangdao city , the uneven distribution of forest, forest age structure is not reasonable, the masses environmental consciousness is poor, forest police are shortage, management is weak, forest land was occupied, biological resources was reduced sharply, afforestation was blind, protection is not enough, forest save rate is lower and serious finance problems existed. There are also some problems in the farmland ecological system, such as the per capita arable land is samll, farmland area is still decrease, vast majority farming is still use conventional tillage, rural environment pollution is serious, agricultural ecological environment is exasperate . The problems in the wetland ecological system included exist blind reclamation, the decrease of wetland with city development process, serious environment pollution, biodiversity declines and so on.At present, The Qinhuangdao calssfied as an ecologicd, international, modern, industrialized, tourist port city by the government. According to the requirement of the city characteristics, this thesis was calculated and estimated the carbon sequestration in the forest ecosystem, farmland ecosystem and wetland ecosystem , and they are 1067 600tons, 452400tons, 93800tons in the forest, farmland and wetland system, respectively. Therefore, Qinhuangdao city forest ecosystem conservation and development is the key factors to maintain the carbon balance in the area. Forest ecosystem is the largest ecological system among all the other land ecological systems in Qinhuangdao. Comparing with the farmland ecosystem, biological productivity is higher and ecological effects is more efficent. In order to achieve the above goal, one should continue to expand the forest vegetation area, to improve the forest quality , toimprove the management level of forest ecological system, and to increase the CO2 absorption ability of terrestrial vegetation. At the same time, coutnmeasures should be taken to reduce CO2 emissions so that toplay an even greater role in land vegetation ecosystem carbon sequestration functionin Qinhuangdao city In addation, Q CO2 emissions reduction countermeasures and feasible countermeasures for sustainable development in forest ecosystem, farmland ecosystem and wetland ecological system in huangdao city were put forward in the thesis. This will lay a basic foundation for the carbon management in the city.