| Climate change is viewed as the most important one of the world top ten environmental problems for the mankind have to face,all the countries should take actions together to deal with the crisis.Forest carbon capture and sequester by photosynthesis is one of the methods.Studies concern with forest and climate change in the natural science field.Social scientific researchers discuss sustainable forest management which is benefit for forest carbon sequestration based on these studies.Some researchers focus on the establishment and development of forest sink market.There is not study on the governmental forestry investment and performance in China based on the perspective of forest carbon sequestration on the background of climate change.The dissertation launch research from the view of carbon sequestration based on these studies about forest mitigating climate change.The paper evaluates and discusses the governmental forestry investment performance in the evolution of governmental forestry investment in China.It consists of eight chapters.The first chapter is the introduction,which introduce the background and significance of the research,the literature reviews,the research methods,innovations and deficiencies.Chapter two introduces the theoretical basis and the practices abroad.It constructs the theoretical framework of the paper,and introduces the practices abroad and relative enlightenment.The third chapter analyses the evolution of the policies,amount and structure of government forestry investment,and estimates the investment amount for certain decrease of carbon emission by EXCEL.Chapter four is the analysis of the influence mechanism on forest carbon sequestration in China.It analyses how investment influences forest carbon sequestration and prevents forest carbon emission,and evaluates the elements which influence forest carbon sequestration by EIVEWS7.2;analyses the government forestry investment policies connects with sustainable forest management.Chapter five evaluates the total efficiency of government forestry investment by DEA to analyzing the efficiency of carbon sequestration and non-carbon sequestration of government forestry investment.Chapter six evaluates the regional efficiency of government forestry investment by DEA and the influence factors which influence the efficiency by MATLAB.Chapter seven discuss the cost-benefit of main forest projects with micro cases.Chapter eight makes conclusions and suggestions according to these studies.Thesis gets the conclusions according to the studies:(1)Governmental forestry investment kept stable increase as well as the social capital.The governmental investment structure change from investing more in production to investing more in ecology.It is feasible for the country to enhance forest carbon sequestration and carbon storage.(2)The relation between population growth and economic growth and forest carbon emission is negative.The relation between expenditure of afforestation and the area of afforestation is positive.Obviously,governmental forestry investment is very important to increase the forest carbon storage under the pressure of economy and population.Analyzing the governmental forestry investment policy combined with sustainable forest management,the policy is optimized gradually and the efficiency of investment structure is improved comparably.(3)The carbon sequestration technique efficiency decreased and then increased and presented as “U” and come to 1 in the seventh forest investigation.It means that the technology of afforestation,management and utilization of investment make a great progress in China.The comprehensive efficiency come to 1 for seven years during 1990-2016.The slack variables show that forestry production inefficient is obvious from 1990 to 2000 and employment inefficient is obvious compare to governmental forestry investment,and the area of nature preserve and afforestation are also inefficient.Employment inefficiency might be influence by the transformation of forestry function,it is inevitable cost to pay in the transformation for forestry from development to protection,area of nature reserve is decided by policy and investment.(4)The carbon sequestration efficiency and the comprehensive efficiency among regions are vary.The indexes of the efficiency of carbon sequestration shows that the efficiency of forest area,forest stock volume and forest carbon storage is different.Technique and management,the reasonable structure of governmental investment and the employment burden in the transitional period are the elements which influence the efficiency.The efficiency of governmental forestry investment is influenced by adjacent regions.(5)Governmental forestry investment can get pretty carbon sequestration benefit and biodiversity benefit with a comparable small amount In the cases analysis.However,the community residents whose survive relay on the forest resource pay great opportunity cost for it.The research shows forestry in Emission Mitigation and Sink Enhancement is an indispensable part of the whole strategies.The direction of forestry development should be the forest ecology construction and protection with forest carbon sequestration oriented and forest economic development which with forest emission mitigation and sink enhancement oriented and with less forest resource expended.Forestry in Emission Mitigation and Sink Enhancement is mainly supported by governmental forestry investment,and forestry carbon market development is also should development to put forest sink into market to compensate the lack of investment of the government.The governmental forest investment should be increased stably and optimize the investment structure further.Investment in afforestation,wild animal and plant and nature reserve is more benefit for improve the efficiency of forest carbon sequestration refer to the elements which influence the forest carbon sequestration and more investment should be invested in them.The economic benefit and social benefit should be concerned as well as carbon benefit.Improving the use and management of investment as well as thinking the direction of forestry development.Combing forest conservation with employment and development of forest economy,searching for the way for forestry optimization.The governmental forestry investment policy should be implemented differently according to different regional characteristic.The investment should focus more on northeast,north,southwest and northwest of China.Formulation of reasonable standard for ecology compensation.Or creating new fiscal methods to formulate reasonable compensation mechanism according to the practice abroad.Technology is the most important factor for the efficiency,so it is the key to improve the efficiency by promoting human capital structure.And optimizing the forestry industry structure,develop the first industry productivity as well as the third industry.For the regions with poor economic development,which maybe lack the location advantage,strong financial support,it is hard for them to compensate the opportunity cost by the governmental financial support,the reasonable development of forest resource without effecting on forest carbon storage and deduction of the effect of opportunity on the whole benefits is necessary.Allocation the investment among afforestation,conservation and wild animal and plant and nature reserves according to the reality,establishing nature reserve in suitable areas and development ecotourism to realize the harmonious development for ecological,economic and social benefits. |
