| 长沙市区马尾松人工林生态系统碳储量及其空间分布 |
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| 引用本文： | 丁壮, 崔若光, 邹雨格. 红松人工林凋落物碳密度的研究[J]. 云南农业大学学报（自然科学）, 2019, 34(4): 705-712. DOI: 10.12101/j.issn.1004-390X(n).201806001 |
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| 作者姓名： | 丁壮 崔若光 邹雨格 |
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| 作者单位： | 1.东北林业大学 森林博物馆，黑龙江 哈尔滨 150040;2.黑龙江省水利充填处，黑龙江 哈尔滨 150040 |
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| 基金项目： | 国家林业和草原局科技司林业科学技术推广项目（【2017】4号） |
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| 摘 要： | ttttt目的ttttt通过对帽儿山不同红松人工林凋落物的分析测定，研究不同红松人工林凋落物含量、组成以及凋落物碳密度的动态规律和特点，为其区域尺度上森林碳储量的估测和碳汇林业的开展提供科学和理论依据。ttttttttttttt方法ttttt运用凋落物筐收集法对帽儿山地区红松人工纯林、白桦—红松人工混交林和蒙古栎—红松人工混交林的凋落物进行研究。ttttttttttttt结果ttttt不同林型凋落物组成不同，凋落物含量和凋落物碳密度随着林龄的增长也逐渐增加，3种林型42年林龄凋落物含量和碳密度均明显大于20年；不同林型的人工林凋落物碳密度差异显著，20年人工林凋落物碳密度表现为：白桦—红松林 [0.751 t/(hm2·a)] >蒙古栎—红松林 [0.721 t/(hm 2·a)] >红松纯林 [0.688 t/(hm 2·a)](P<0.05)；42年生人工林凋落物碳密度依次为：蒙古栎—红松林 [2.995 t/(hm2·a)] >白桦—红松林 [2.779 t/(hm 2·a)] >红松纯林 [2.007 t/(hm 2·a)](P<0.05)。tttttttttttttttttt结论ttttt不同林型的红松人工林凋落物碳密度差异显著，混交林明显大于纯林；林分凋落物碳密度随着林龄的增长而增加。tttt
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| 关 键 词： | 红松人工林 混交林 凋落物 碳密度 |
| 收稿时间： | 2018-06-05 |
| 修稿时间： | 2019-04-29 |
Climate science: global warming and tropical carbon |
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| Zhuang DING, Ruoguang CUI, Yuge ZOU. Study on the Carbon Density of Litterfall in Pinus koraiensis Plantation[J]. JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY（Natural Science）, 2019, 34(4): 705-712. DOI: 10.12101/j.issn.1004-390X(n).201806001 |
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| Authors: | Zhuang DING Ruoguang CUI Yuge ZOU |
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| Affiliation: | 1.Forest Museum of Northeast Forestry University, Harbin 150040, China;2.Heilongjiang Provincial Institute of Water Conservancy Filling Office, Harbin 150040, China |
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| Abstract: | tttttPurposetttttIn order to understand the dynamics and characteristics of litter content, litter components and litter carbon density in different Pinus koraiensis plantations, and provide scientific references and theoretical basis for accurate estimation of forest carbon stocks and development management of carbon sequestration forest in regional scale.ttttttttttttttttttMethodtttttThe litter basket collection method was used to study the litter carbon density of P. koraiensis plantations, Betula platyphylla-P. koraiensis plantations and Quercus mongolica-P. koraiensis plantations in Maoershan area.ttttttttttttttttttResulttttttThe litter fall components were different in three forest types, the litter fall content and litter fall carbon density would increase with the increase of forest age. The litter fall content and carbon density of the three forest types were significantly higher than 20 in 42 years. There was significant difference for the carbon density of litter fall in different forest types. The carbon density of litter in 20 years plantation ranked B. platyphylla-P. koraiensis plantations [0.751 t/(hm2·a)]>Q. mongolica-P. koraiensis plantations [0.721 t/(hm2·a)]>P. koraiensis plantations [0.688 t/(hm2·a)] (P<0.05); the rank of carbon density of litter in 42 years plantation wasQ. mongolica-P. koraiensis plantations [2.995 t/(hm2·a)]>B. platyphylla-P. koraiensis plantations [2.779 t/(hm2·a)]>P. koraiensis plantations [2.007 t/(hm2·a)] (P<0.05).ttttttttttttttttttConclusiontttttThere are significant difference for carbon density of litter fall among different P. koraiensis plantations, and it is significantly higher than pure forest in mixed forest. The carbon density of litter fall increased with the increase of forest age.ttttttttt |
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| Keywords: | Pinus koraiensis plantations mixed forest litter fall carbon density |
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