基于国家森林城市创建的株洲市森林碳汇效益分析

发布时间：2018-04-14 13:07

本文选题：森林碳汇 + 森林城市　；参考：《中南林业科技大学》2015年硕士论文

【摘要】：森林碳汇是森林生态效益的组成部分,是衡量森林城市创建的重要指标之一。本文以株洲市森林城市的创建为背景,以株洲市的杉木林、马尾松林、国外松林、速生阔叶林、中生阔叶林和慢生阔叶林等主要的森林类型为研究对象,结合国家森林城市评价指标体系,采用2014年株洲市森林“二类调查”及室内实验数据,利用蓄积量法和碳税法对株洲市森林碳汇效益和主成分分析法对影响株洲市森林碳汇效益的因素进行了分析。以挑选出固碳能力强、碳汇效益好的骨干树种及森林群落类型,为株洲市的国家森林城市建设和林业资源的合理利用提供了数据支持和理论基础。具体结果如下：(1)株洲市不同森林类型单位面积生物量因林种的不同而存在一定的差异。具体表现为：慢生阔叶林(128.25 t.hm-2)中生阔叶林(115.63 t.hm-2)速生阔叶林(93.05 t.hm-2)杉木林(41.98 t.hm-2)国外松林(20.57 t.hm-2)马尾松林(19.76 t.hm-2)。(2)株洲市森林碳汇功能及效益明显。森林总固碳量为137.95万t,森林土壤固碳量114.84万t,林木固碳量23.11万t。针叶林固碳量是阔叶林的2.93倍,针叶林为固碳能力强、固碳效益最好的森林群落。株洲市森林碳汇效益的价值量为8.92亿元,相当于株洲市2013年的GDP(1960亿元)的0.46%。(3)株洲市森林林木碳汇功能随森林特征而呈现出一定规律性。从不同的森林类型来看,杉木林林木碳汇量最高为117367.40t,其次为慢生阔叶林67856.28t,马尾松林最少仅为2540.67t；从不同林龄阶段来看,中龄林最高为159815.55t,其次为幼龄林,63701.93t,成熟林最少为1023.27t。(4)株洲市不同森林类型土壤碳汇量随土层、森林类型呈现出明显的规律。株洲市不同森林类型土壤A层有机质(有机碳)含量高于B层。不同的森林类型土壤碳汇量表现为：杉木林慢生阔叶林速生阔叶林国外松马尾松中生阔叶林。其中杉木林土壤碳汇量最高,为78.18万t,占株洲市土壤碳汇量的68.08%；马尾松林最低为3.23万t,占2.81%。(5)国家森林城市创建后株洲市不同森林类型林木碳汇效益增加。株洲市2009年森林林木碳汇量为199293.71t,2014年森林林木碳汇量为2331137.43t。2009年森林林木碳汇量明显低于株洲市森林城市创建以后的森林林木碳汇量。表明国家森林城市的创建增加了株洲市森林碳汇效益,城市森林生态系统得到了优化。(6)影响株洲市森林碳汇效益发展的有三个主要因素：社会经济因素、政策法规因素、自然环境因素。其中影响最大的为社会经济和政策法规因素。
[Abstract]:Forest carbon sink is an integral part of forest ecological benefit and one of the important indexes to measure the establishment of forest city.In this paper, the main forest types of Chinese fir forest, Masson pine forest, foreign pine forest, fast-growing broad-leaved forest, mesophytic broad-leaved forest and slow broad-leaved forest are taken as the background of the establishment of the forest city in Zhuzhou.Combined with the evaluation index system of national forest cities, the "second class forest survey" and indoor experimental data of Zhuzhou City in 2014 were used.The effects of forest carbon sequestration and principal component analysis (PCA) on forest carbon sequestration benefit in Zhuzhou city were analyzed by means of volume method and carbon tax law.In order to select the backbone tree species and forest community types with strong carbon sequestration ability and good carbon sink benefit, this paper provides data support and theoretical basis for the national forest city construction and the rational utilization of forestry resources in Zhuzhou City.The specific results are as follows: (1) the biomass per unit area of different forest types in Zhuzhou city is different with different forest species.The results were as follows: slow broad-leaved forest (128.25 t.hm-2)) medium broadleaved forest (115.63 t.hm-2) fast broadleaved forest (93.05 t.hm-2)) Chinese fir forest (41.98 t.hm-2) (foreign pine forest 20.57 t.hm-2) Pinus massoniana forest 19.76 t.hm-2m-2) forest carbon sink function and benefit in Zhuzhou city.The total carbon sequestration of forest is 1.3795 million t, the carbon sequestration of forest soil is 1.1484 million t, and the carbon sequestration of forest is 231100 t.The carbon sequestration of coniferous forest was 2.93 times that of broad-leaved forest. The forest community with strong carbon sequestration ability and best carbon sequestration benefit was coniferous forest.The value of forest carbon sink benefit in Zhuzhou city is 892 million yuan, which is equivalent to 0.46% of 196 billion yuan in 2013 in Zhuzhou city. The carbon sink function of forest forest in Zhuzhou city shows certain regularity with forest characteristics.According to different forest types, the maximum carbon sink of Chinese fir forest was 117367.40 t, followed by slow broad-leaved forest (67856.28 t) and Pinus massoniana forest (2540.67 t).The highest value of middle age forest was 159815.55 t, followed by young forest (63701.93 t) and mature forest (1023.27 t. 4) the soil carbon sink of different forest types in Zhuzhou city showed obvious regularity with soil layer.The content of organic matter (organic carbon) in layer A of different forest types in Zhuzhou City was higher than that in layer B.The soil carbon sequestration of different forest types was as follows: Chinese fir forest, slow broadleaf forest, fast growing broadleaf forest, foreign Pinus massoniana mesophytic broad-leaved forest.The soil carbon sequestration of Chinese fir forest was the highest (781800 t), accounting for 68.08% of the soil carbon sink in Zhuzhou city, while the lowest value of Masson pine forest was 32300 t (2.81%. 5) after the establishment of the national forest city, the carbon sink benefit of different forest types increased in Zhuzhou city.The carbon sink of forest trees in Zhuzhou City in 2009 was 199293.71 t, and the carbon sink amount of forest trees in 2014 was obviously lower than that of forest trees in Zhuzhou City after the establishment of the forest city of Zhuzhou City in 2014, and the amount of carbon sink of forest trees in 2014 was obviously lower than that of forest trees in Zhuzhou City.The results show that the establishment of national forest city increases the benefit of forest carbon sink in Zhuzhou city, and the urban forest ecosystem is optimized. There are three main factors influencing the benefit development of forest carbon sink in Zhuzhou city: social and economic factors, policies and regulations.Natural environment factorsAmong them, the most influential factors are social economy and policies and regulations.
【学位授予单位】：中南林业科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：F326.2;S718.5

【参考文献】