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Investigation on carbon sequestration capacity of typical subtropical evergreen broad-leaved forest in Wuyi Mountain National Nature Reserve

机译:武夷山国家自然保护区典型亚热带常绿阔叶林碳封存能力调查

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Three typical substropical evergreen broad-leaved forests ( Castanopsis eyrei , Schima superba and Cyclobalanopsis glauca ) in Wuyi Mountain National Nature Reserve of Jiangxi Province were selected to investigate its carbon sequestration capacity. The biomass and soil bulk density of sample investigation were get by setting sample investigation, field quadrat sampling, indoor sample making, experimental analysis testing, data statistics and analysis. The organic carbon content of vegetation layer (arbor layer, shrub layer and herbaceous layer, litter layer) and soil layer (0-10cm, 10-20cm, 20-30cm, 30-50cm and 50-100cm) were also get. The carbon density and carbon storage of subtropical evergreen broad-leaved forests vegetation and soil were estimated which including Castanopsis eyrei , Schima superba and Cyclobalanopsis glauca . The investigation results had shown that:The average organic carbon content of each vegetation layer in the investigation plot (400 m~(2)) of Wuyi Mountain National Nature Reserve was arbor layer (54.07%)> shrub layer (52.8%)> herbaceous layer (47.5%), in which the average organic carbon content of the three subtropical evergreen broad-leaved forests in the arbor layer was close 52.97% to 54.87% and the total average content was 54.07%. The average carbon density of the forest vegetation layer was 178.3587t/hm~(2), the average carbon density of the vegetation layer was arbor layer (176.0273t/hm~(2))> shrub layer (1.3043t/hm~(2))> litter layer (0.8144t/hm~(2))> herbaceous layer (0.2127t/hm~(2)); the average carbon density of each forest species was Castanopsis eyrei (213.5141t/hm~(2))> Schima superba (168.9069t/hm~(2))> Cyclobalanopsis glauca (152.6551t/hm~(2)).Investigation sample of subtropical evergreen broad-leaved forest (400 m) in Wuyi Mountain National Nature Reserve, Jiangxi Province~(2)The average soil bulk density of each soil layer cm 0-100 g/cm was 0.868-1.816 g/cm~(3)both soil organic carbon content and soil carbon density decreased with the increase of soil depth. The average organic carbon content of each soil layer was between 3.75% and 12.48%, and the average soil carbon density was between 62.85t/hm~(2)and 146.14t/hm~(2). The average total carbon density of the soil in the investigated sample plots was 754.77t/hm~(2), of which the average soil carbon density in investigation sample plots in Castanopsis eyrei , Schima superba and Cyclobalanopsis glauca was 911.49t/hm~(2), 762.56t/hm~(2)and 543.22t/hm~(2)respectively.The average carbon storage of the investigation sample plot (400m~(2)) in Jiangxi Wuyi Mountain National Nature Reserve were Castanopsis eyrei forest (45.0002t) > Cyclobalanopsis glauca forest (36.6087t) > Schima superba forest (28.4850t), the average soil carbon storage(30.1908t) was 4.23 times the average carbon storage(7.1314t).
机译:江西省武夷山国家级自然保护区的三种典型的逾越植物阔叶林(Castanopsis Eyrei,Schima Superba和Cyclobalanopsis Glauca)进行了选择,探讨其碳封存能力。通过设定样品调查,现场四号采样,室内样品制作,实验分析测试,数据统计和分析来获得样品调查的生物质和土壤堆积密度。还得到了植被层(Arbor层,灌木层和草本层,垃圾层)和土壤层(0-10cm,10-20cm,20-30cm,30-50cm和50-100cm)的有机碳含量。估计亚热带常绿阔叶森林植被和土壤的碳密度和碳储存,包括Castanopsis Eyrei,Schima Superba和Cyclobalanopsis glauca。调查结果表明:武夷山国家级自然保护区的调查图中每个植被层的平均有机碳含量(400米〜(2))是arbor层(54.07%)>灌木层(52.8%)>草本层(47.5%),其中亚梁层中三个亚热带常绿阔叶林的平均有机碳含量接近52.97%至54.87%,总平均含量为54.07%。森林植被层的平均碳密度为178.3587t / hm〜(2),植被层的平均碳密度是植物层(176.0273t / hm〜(2))>灌木层(1.3043t / hm〜( 2))>凋落层(0.8144t / hm〜(2))>草本层(0.2127t / hm〜(2));每个森林种类的平均碳密度是Castanopsis Eyrei(213.5141t / hm〜(2))>辛马Superba(168.9069t / hm〜(2))> Cycrobalanopsis glauca(152.6551t / hm〜(2))。调查样本亚热带常绿阔叶森林(400米)在武夷山国家级自然保护区,江西省〜(2)平均土壤堆积密度为0-100克/厘米0.868-1.816g / cm〜(3 )土壤有机碳含量和土壤碳密度随着土壤深度的增加而降低。每个土壤层的平均有机碳含量为3.75%和12.48%,平均土壤碳密度在62.85t / hm〜(2)和146.14t / hm〜(2)之间。调查的样品图中土壤的平均总碳密度为754.77t / hm〜(2),其中Castanopsis Eyrei,Schima Superba和Cyclobalanopsis glauca的调查样品地块中的平均土壤碳密度为911.49t / hm〜( 2),762.56t / hm〜(2)和543.22t / hm〜(2)。江西武夷山国家自然保护区的调查样本图(400m〜(2))的平均碳储存是Castanopsis Eyrei森林( 45.0002T)> Cyclobalanopsis Glauca Forest(36.6087T)>芝马太棒林(28.4850T),平均土壤碳储存(30.1908T)为平均碳储存的4.23倍(7.1314T)。

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