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Characteristics of Forest Vegetation Carbon Storage and Carbon Density in Ningshan County,Qinling Mountain
Authors
上官周平
邓蕾
Publication date
1 January 2011
Publisher
Abstract
以秦岭南坡中段宁陕县林区2003年二类森林调查资料为基础,采用政府间气候变化委员会(IPCC)推荐使用的森林碳储量估算方法,从森林类型、林种、年龄和林分起源的角度,对该林区森林植被碳储量和碳密度进行估算。结果显示:(1)宁陕县森林植被碳储量为12.31Tg(1Tg=1×1012 g),平均碳密度为66.36Mg/hm2(1Mg=1×106 g),其各乡镇森林植被碳储量和碳密度在空间上的分布不平衡。(2)各森林类型中针叶林总碳储量为0.71Tg,平均碳密度为64.11 Mg/hm2,阔叶林总碳储量为11.61Tg,占宁陕县总碳储量的94.3%,碳密度为67.65Mg/hm2。(3)各林种中防护林碳储量最大(8.13Tg),占宁陕县总碳储量的66%,特种用途林碳密度最大(81.43Mg/hm2)。(4)不同林分起源中,天然林碳储量为12.231Tg,占宁陕县总碳储量的99.3%,人工林碳储量较小。(5)不同年龄森林中未成熟森林(包括幼龄林、中龄林和近熟林)碳储量为12.13Tg,占总碳储量的98.5%,近熟林碳密度最大(80.14Mg/hm2),幼龄林碳密度最小(39.85Mg/hm2)。研究表明,宁陕县森林具有..
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018