达拉特旗3种类型公益林生态效益评价研究
发布时间：2018-10-29 22:24
【摘要】：公益林对维护生态环境、保护生物多样性及社会的可持续发展作用重大,本文以内蒙古达拉特旗境内国家级公益林为研究对象,根据3种公益林类型占总面积比重与分布情况,选取小叶杨(Populus simonii)、沙柳(Salix psammophila)、羊柴(Hedysarum mongdicum)3种公益林类型,以生态学、林学等多个学科基础理论为指导,应用样地调查法及定位监测法取得基础数据,对这3种类型公益林的涵养水源、固碳释氧、固土保肥和维护生物多样性4种主要的生态效益进行计量分析,运用频度分析法等方法构建了包括三个层次,12项具体指标的达拉特旗国家级公益林生态效益评价指标体系,采用层次分析法和熵权法相结合方法的评价方法,对达拉特旗国家级公益林进行评价,主要研究结果如下:(1)涵养水源物质量大小顺序为:沙柳(557.1t/hm~2)小叶杨(359.19t/hm~2)羊柴(328.52t/hm~2);固碳释氧表现为:小叶杨(120.96t/hm~2)沙柳(50.02hm~2)羊柴(45.14hm~2);固土效益为:小叶杨(66.62t/hm~2·a)沙柳(63.67t/hm~2·a)羊柴(62.26t/hm~2·a);保肥效益表现为为沙柳(36.49g/kg)小叶杨(35.49g/kg)羊柴(29.15g/kg);生物多样性表现为:草本层的生物多样性效益为沙柳小叶杨羊柴。(2)采用碳税法、生产成本法等方法对4种主要效益进行核算,涵养水源效益价值量表现为沙柳(5403.87元/hm~2)小叶杨(3425.94元/hm~2)羊柴(3186.64元/hm~2)。固碳释氧效益表现为:小叶杨(25754.24元/hm~2)羊柴(23581.03元/hm~2)沙柳(22276.75元/hm~2)。固土保肥效益表现为:沙柳(7737.1元/hm~2)羊柴(4882.25元/hm~2)小叶杨(4881.67元/hm~2)。生物多样性效益价值表现为:小叶杨和沙柳相同,Shannon-Wiener指数级别均为Ⅳ即5000元/hm~2,沙柳林价值为3000元/hm~2。(3)根据综合生态效益的评价值结果来看,小叶杨(0.3864)沙柳(0.3011)羊柴(0.2641),说明相比之下沙柳的生态效益最优。
[Abstract]:Public welfare forest plays an important role in maintaining ecological environment, protecting biodiversity and sustainable development of society. This paper takes the national public welfare forest in Dalat Banner of Inner Mongolia as the research object, according to the proportion and distribution of three types of public welfare forest in the total area. Based on the basic theories of ecology, forestry and other disciplines, three types of public welfare forest, (Hedysarum mongdicum), (Salix psammophila), and (Salix psammophila), were selected, and the basic data were obtained by sample investigation and location monitoring. The four main ecological benefits of these three types of public welfare forest, such as water conservation, carbon sequestration and oxygen release, soil consolidation and fertilizer conservation and biodiversity maintenance, were analyzed quantitatively and three levels were constructed by frequency analysis. The ecological benefit evaluation index system of the national public welfare forest of Darat Banner is evaluated by using the method of AHP and entropy weight method to evaluate the national public welfare forest of Darat Banner. The main results are as follows: (1) the order of quality of water source is: 557.1t/hm~2 (557.1t/hm~2) 359.19t/hm~2 (359.19t/hm~2) (328.52t/hm~2); Carbon sequestration and oxygen release were shown as follows: 120.96t/hm~2 (50.02hm~2), 50.02hm~2 (45.14hm~2), and 66.62t/hm~2 (66.62t/hm~2 a) 63.67t/hm~2 a (63.67t/hm~2 a, 62.26t/hm~2 a);), and the benefits of soil fixation were as follows: 66.62t/hm~2 (66.62t/hm~2 a), 63.67t/hm~2 a (63.67t/hm~2 a), Sallow (45.14hm~2), and 66.62t/hm~2 (66.62t/hm~2 a), 63.67t/hm~2 a (63.67t/hm~2 a). The benefit of fertilizer conservation was 36.49g/kg (35.49g/kg), 35.49g/kg (29.15g/kg); The biodiversity performance of herbaceous layer is as follows: (2) four main benefits are calculated by carbon tax law and production cost method. The benefit value of water conservation was as follows: Salix (5403.87 yuan / hm~2), poplar (3425.94 yuan / hm~2), wood (3186.64 yuan / hm~2). The benefits of carbon sequestration and oxygen release were as follows: poplar (25754.24 yuan / hm~2), wood (23581.03 yuan / hm~2) and Salix willow (22276.75 yuan / hm~2). The benefits of soil consolidation and fertilizer conservation were as follows: Salix (7737.1 yuan / hm~2), wood (4882.25 yuan / hm~2) and poplar (4881.67 yuan / hm~2). The value of biodiversity benefit is as follows: poplar and Salix are the same, and the Shannon-Wiener index grade is 鈪，
本文编号：2299006
[Abstract]:Public welfare forest plays an important role in maintaining ecological environment, protecting biodiversity and sustainable development of society. This paper takes the national public welfare forest in Dalat Banner of Inner Mongolia as the research object, according to the proportion and distribution of three types of public welfare forest in the total area. Based on the basic theories of ecology, forestry and other disciplines, three types of public welfare forest, (Hedysarum mongdicum), (Salix psammophila), and (Salix psammophila), were selected, and the basic data were obtained by sample investigation and location monitoring. The four main ecological benefits of these three types of public welfare forest, such as water conservation, carbon sequestration and oxygen release, soil consolidation and fertilizer conservation and biodiversity maintenance, were analyzed quantitatively and three levels were constructed by frequency analysis. The ecological benefit evaluation index system of the national public welfare forest of Darat Banner is evaluated by using the method of AHP and entropy weight method to evaluate the national public welfare forest of Darat Banner. The main results are as follows: (1) the order of quality of water source is: 557.1t/hm~2 (557.1t/hm~2) 359.19t/hm~2 (359.19t/hm~2) (328.52t/hm~2); Carbon sequestration and oxygen release were shown as follows: 120.96t/hm~2 (50.02hm~2), 50.02hm~2 (45.14hm~2), and 66.62t/hm~2 (66.62t/hm~2 a) 63.67t/hm~2 a (63.67t/hm~2 a, 62.26t/hm~2 a);), and the benefits of soil fixation were as follows: 66.62t/hm~2 (66.62t/hm~2 a), 63.67t/hm~2 a (63.67t/hm~2 a), Sallow (45.14hm~2), and 66.62t/hm~2 (66.62t/hm~2 a), 63.67t/hm~2 a (63.67t/hm~2 a). The benefit of fertilizer conservation was 36.49g/kg (35.49g/kg), 35.49g/kg (29.15g/kg); The biodiversity performance of herbaceous layer is as follows: (2) four main benefits are calculated by carbon tax law and production cost method. The benefit value of water conservation was as follows: Salix (5403.87 yuan / hm~2), poplar (3425.94 yuan / hm~2), wood (3186.64 yuan / hm~2). The benefits of carbon sequestration and oxygen release were as follows: poplar (25754.24 yuan / hm~2), wood (23581.03 yuan / hm~2) and Salix willow (22276.75 yuan / hm~2). The benefits of soil consolidation and fertilizer conservation were as follows: Salix (7737.1 yuan / hm~2), wood (4882.25 yuan / hm~2) and poplar (4881.67 yuan / hm~2). The value of biodiversity benefit is as follows: poplar and Salix are the same, and the Shannon-Wiener index grade is 鈪，
本文编号：2299006
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