农业现代化研究2017，Vol.38Issue(3)：383-388,6.DOI:10.13872/j.1000-0275.2017.0019
农业生产正外部性环境价值评估及其提升研究——以湖南省为例
The environmental valuation and promotion of agricultural positive externalities: A case study of Hunan Province
摘要
Abstract
Assessment of valuation from economics perspectives on agricultural production externalities of Hunan Province, a primary rice production area, can aid the evaluation of the full value of modern agriculture in similar regions. This paper applies valuation methods of environmental economics such as revealed preference theory and stated preference methods to estimate the indirect value of positive externalities generated from Hunan's agriculture industry (specifically, crop farming) in 2014. Further, the paper studies the positive external value of farmland ecosystem and explores how to promote such ecosystem. The results show that Hunan's agriculture produces five positive externalities: carbon fixation and oxygen release, water conservation, nutrition circulation, air purification and soil conservation. The positive external value sums to 27.157 billion yuan or about 13.44% of total farming GDP in Hunan in 2014. The value of carbon fixation and oxygen release, water conservation, nutrition circulation, air purification and soil conservation is estimated to be 7.962, 6.386, 6.282, 0.503, 6.024 billion yuan respectively. The findings indicate that people should understand the true value of agriculture in a holistic way. In addition, at the macro level, government may base our results to better design agricultural and subsidiary policies. We conclude that to achieve positive externalities in agriculture, government should take the advantage of supply side reform to provide information and modern technology to the new generation of farmers, to implement policies that support the traditional recycling agriculture model modernization, and to open up a new path of multi-functional agricultural operations.关键词
农业生产/外部性/环境价值/评估/农业价值提升/湖南省Key words
agricultural production/externality/environmental value/valuation/agricultural value promotion/Hunan Province分类
管理科学引用本文复制引用
周镕基,吴思斌,皮修平..农业生产正外部性环境价值评估及其提升研究——以湖南省为例[J].农业现代化研究,2017,38(3):383-388,6.基金项目
国家社会科学基金项目(13CJY086).National Social Science Foundation of China (13CJY086). （13CJY086）
