Transfer of agricultural implied water pollution and responsibility sharing among regions in China
In order to clarify the environmental governance and emission reduction responsibili-ties of all parties and realize the emission reduction of agricultural water pollution.Based on the multi regional input-output model of 31 provinces in China,the agricultural COD emissions of various provinces in China based on producer responsibility,consumer responsibility and income responsibility are calculated respectively,the main paths of agricultural water pollution transfer are identified from the regional and provincial levels,the transfer of agricultural implied water pollution in various regions in China is discussed,and the allocation scheme of water pollution responsibility is put forward.The results show that:(1)agricultural COD has obvious regional transfer characteristics.From the perspective of final demand,northeast region,central region and northwest region are the three largest pollution export regions;From the perspective of ini-tial investment,the transfer of agricultural COD mainly occurs between the central region and the northeast and other northern regions.(2)"Heilongjiang → Guangdong","Hebei→Guang-dong"and"Liaoning → Guangdong"are the three largest net transfer paths of agricultural COD on the consumption side,and"Heilongjiang→Jiangsu"and"Heilongjiang → Jilin"are the two largest net transfer paths of agricultural water pollution on the income side.(3)Compared with schemes A and B,scheme C fully considers the pollution responsibility of income earners and consumers,and measures the water pollution responsibility of the region more comprehensively and scientifically from the perspective of the whole production chain.It is suggested to use a sci-entific pollution responsibility allocation scheme,strengthen the inter regional coordination and pollution control mechanism,and strengthen the governance responsibilities of different types of regions to reduce water pollution.
agricultural water pollutionMulti Regional Input-Output Modelimplied pollu-tion transferliability for pollution
NETL
NSTL
万方数据
