Based On Water Resource Depletion For Green GDP Estimation

Since the 1970s, with the rapid population growth, depletion of natural resources and environmental damage increasingly aggravate, the problems of resources and environment have widely become the social focus of all circles. GDP, as the core index in national economy accounting, been questioned, because it couldn't reflect the negative impacts of human society and economy developments on natural resources and environmental qualities comprehensively. To overcome the shortcomings of traditional GDP, the Green GDP accounting is introduced and well accepted by the governments and people all over the world. Green GDP is an improved GDP, in which costs of resources consumption and environment losses were deducted. It is a new GDP on the basic of SNA, which considers external influencing factors and natural resources, and representing for more general welfare level.For many years, all kinds of organizations, institutions, experts and scholars around the world have been devoted to the green GDP research, but because of the complexity of green GDP accounting, until now, it doesn't have a generally accepted green GDP accounting model in the world. How to include the resources consumption and the environment loss cost in the traditional GDP accounting process, is the core implement of green GDP accounting. Water resource is an important natural resource, and as well as an important part in ecosystem. Carrying out green GDP accounting for water, will be in favor of changing idea of natural resources consumption, making scientific policies, improving the natural resources management level and changing unsustainable economic behaviors. By case study, this research aims at applying the theory in the practice, enriching the research contents of green GDP accounting, understanding the status of water resources in national economy from the quantitative angle and improving the awareness of relevant administrative departments at the same time.Firstly, this paper analyzes and describes the domestic and foreign related work in green GDP accounting domain, and defines the conception of green GDP in this paper. Based on this, the paper carries on comparison on the basic theories and main methods of green accounting and resources environment value estimation, through which establishes the methods of estimation and the mentality of reckoning. This Paper adopts fuzzy comprehensive judgment method, human capital method, productivity method and so on to the estimation of water resources economic losses. Then, the paper estimates the green GDP of Wuhan City, the estimate result indicates: In 2005 the water resources depletion loss accounts for 1.20% of GDP, the water resources degradation loss accounts for 0.31% of GDP, green GDP based on water resources accounts for 98.49% of GDP. Finally, the paper analyzes and summarizes the study results, and puts forward policy suggestions.