山西典型天然草地碳分布特征及碳储量估算

发布时间：2018-02-27 02:29

本文关键词： 典型草地天然草地有机碳密度碳分布碳储量　出处：《草地学报》2017年01期 　论文类型：期刊论文

【摘要】：通过对山西4种主要草地类型暖性草丛草地、暖性灌草丛草地、温性草原、山地草甸草原的地上现存生物量、凋落物、半分解层、根系和土壤有机碳密度的调查和测定,本研究估算山西天然草地生态系统的碳储量,旨在揭示山西不同类型天然草地固碳能力。结果表明:4种类型草地的植被碳密度、土壤有机碳密度、生态系统有机碳密度的大小顺序相同均为:暖性灌草丛草地山地草甸草原暖性草丛草地温性草原;山西草地植被平均碳密度为1759.07g·m~(-2),占整个草地生态系统的21.81%;土壤平均有机碳密度为6307.22g·m~(-2),占整个草地生态系统的78.19%;经估算,山西的草地面积为4.55×10~6 hm~2,草地总碳储量约为364.40Tg。
[Abstract]:The biomass, litter, semi-decomposition layer, root system and soil organic carbon density of four main types of grassland in Shanxi Province, including warm grassland, warm shrub grassland, warm grassland, temperate grassland and mountain meadow grassland, were investigated and measured. In order to reveal the carbon sequestration capacity of different types of natural grassland in Shanxi Province, this study estimated the carbon storage of natural grassland ecosystem in Shanxi Province. The results showed that the vegetation carbon density and soil organic carbon density of four types of grassland were determined. The order of organic carbon density of ecosystem is the same: warm shrub grassland mountain meadow grassland warm grassland temperature grassland; The average carbon density of grassland vegetation in Shanxi is 1759.07 g 路m ~ (-1) ~ (-2), which accounts for 21.81% of the whole grassland ecosystem, and the average soil organic carbon density is 6307.22 g 路m ~ (2) ~ (-2), which accounts for 78.19% of the whole grassland ecosystem. The grassland area of Shanxi is estimated to be 4.55 脳 10 ~ (6) h ~ (-2), and the total carbon storage of grassland is about 364.40 Tg.
【作者单位】：山西农业大学动物科技学院;
【基金】：中国科学院战略性先导科技专项(XDA05050403) 国家自然科学基金(31572452) 山西省攻关项目(20140311013-3)资助
【分类号】：S812

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