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首页> 外文期刊>Journal of Sustainable Development >A Case Study of Carbon Sequestration Potential of Land Use Policies Favoring Re-growth and Long-term Protection of Temperate Forests
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A Case Study of Carbon Sequestration Potential of Land Use Policies Favoring Re-growth and Long-term Protection of Temperate Forests

机译：有利于温带森林重新生长和长期保护的土地利用政策的碳固存潜力案例研究

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0 false 18 pt 18 pt 0 0 false false false /* Style Definitions */table.MsoNormalTable{mso-style-name:"Table Normal";mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-parent:"";mso-padding-alt:0in 5.4pt 0in 5.4pt;mso-para-margin:0in;mso-para-margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:10.0pt;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman";} There is a traditional view suggesting forests remove carbon dioxide from the atmosphere (Pregitzer & Euskirchen, 2004), but they cease to serve as a carbon sink as they fully mature (Odum, 1969). ? Recent modeling of old-growth forests indicate they continue to serve as a “net sink” of carbon even after maturity (Carey, Sala, & Callaway, 2001; Zhou, 2006), sequestering an average of 2.4 +/- 0.8 tC ha -1 yr -1 (tC = metric tons of carbon; ha = hectare; yr =year), identifying a ratio of heterotrophic respiration (Rh) to net primary production (NPP) of approximately 0.65 +/- 0.02 (Luyssaert, 2008). ? These figures show the strongest correlation amongst temperate forest regions. ? Two calculations are made using the carbon sequestration average. ? One is made identifying the amount of carbon sequestered through a small-scale land protection organization, showing a net carbon sequestration of approximately 224 metric tons of carbon per year. ? The other is based on the amount of land required to offset current anthropogenic emissions of carbon in the global carbon budget, showing approximately 235 million hectares of new forest growth would be required to offset current global anthropogenic emissions. ? One implication of these calculations is the traditional assumption of carbon neutrality increasing with age (Magnani, 2007) is incorrect, suggesting re-growing forests may be a favored policy choice for continued carbon sequestration.
机译：0错误18点18点0 0错误错误错误/ *样式定义* / table.MsoNormalTable {mso-style-name：“ Table Normal”; mso-tstyle-rowband-size：0; mso-tstyle-colband-size： 0; mso-style-noshow：yes; mso-style-parent：“”; mso-padding-alt：0in 5.4pt 0in 5.4pt; mso-para-margin：0in; mso-para-margin-bottom：.0001pt ; mso-pagination：widow-orphan; font-size：10.0pt; font-family：“ Times New Roman”; mso-fareast-font-family：“ Times New Roman”;}有一种传统的观点建议森林去除碳大气中的二氧化碳（Pregitzer和Euskirchen，2004），但随着它们完全成熟，它们不再充当碳汇（Odum，1969）。 ？最近对旧林的建模表明，即使成熟后，它们仍继续充当碳的“净汇”（Carey，Sala和Callaway，2001; Zhou，2006），平均封存2.4 +/- 0.8 tC ha- 1 yr -1（tC =碳吨; ha =公顷; yr =年），得出异养呼吸（Rh）与净初级生产（NPP）的比率约为0.65 +/- 0.02（Luyssaert，2008年）。 ？这些数字表明温带森林地区之间的相关性最强。 ？使用碳固存平均值进行两次计算。 ？通过一个小型的土地保护组织确定了碳封存量，显示出每年净碳封存量约为224公吨。 ？另一种是基于全球碳预算中抵消当前人为碳排放所需的土地数量，这表明需要约2.35亿公顷的新森林来抵消当前全球人为排放。 ？这些计算的一个含义是碳中和性随着年龄增长而增加的传统假设（Magnani，2007年）是不正确的，这表明重新种植森林可能是持续固碳的有利政策选择。

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