中国农业大学学报2018，Vol.23Issue(1)：197-206,10.DOI:10.11841/j.issn.1007-4333.2018.01.23
中国森林碳汇的区域差异及动态演进分析
Regional differences and dynamic evolution of forest carbon sink in China
摘要
Abstract
Based on the data of forest resources inventory during 1988-2013 in China,the forest carbon sink of 31 provinces is estimated by using an improved forest inventory method.The regional difference and dynamic evolution of forest carbon sink in China are systematically analyzed by means of Dagum Gini coefficient and Markov chain method.The results indicated that:1) There is a large gap in the forest carbon sink in each province.It presents the increasing trend of the south region to the southwest and the northeast region;2) Dagum Gini coefficient and its decomposition results show that the regional difference in forest carbon sink in China show a downward trend.Among four major forest regions,the gaps in the south,the north and the northeast are in line with the whole country,and the trend is basically declining.However the gap in the southwest region is first increased and then decreased.The regional gap is the leading cause of differences in China's forest carbon sink.Moreover,the differences between the net and the over-variable density in the region are an x-shaped contribution to the overall difference in the country;3) According to Markov chain analysis,different levels of forest carbon transfer are less likely to flow across regions.But from the prospective of dynamic evolution,China' s forest carbon sink are on the rise,and lower-level provinces are expected to decline gradually.In addition,the overall trend will move towards higher levels.关键词
森林碳汇/区域差异/Dagum基尼系数/Markov链Key words
forest carbon sink/regional difference/Dagum Gini coefficient/Markov chain分类
资源环境引用本文复制引用
薛龙飞,罗小锋,李容容,余威震..中国森林碳汇的区域差异及动态演进分析[J].中国农业大学学报,2018,23(1):197-206,10.基金项目
国家社科基金重点项目(15AZD071) （15AZD071）
