黄土高原刺槐人工幼林碳密度动态变化

刘艳; 苏印泉; 张玲玲; 王健; 许喜明

doi:10.3969/j.issn.1000-2006.2013.02.005

黄土高原刺槐人工幼林碳密度动态变化

刘艳,苏印泉,张玲玲,王健,许喜明

南京林业大学学报（自然科学版） ›› 2013, Vol. 37 ›› Issue (02) : 28-32.

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南京林业大学学报（自然科学版） ›› 2013, Vol. 37 ›› Issue (02) : 28-32. DOI: 10.3969/j.issn.1000-2006.2013.02.005

森林生态系统碳储量及碳密度研究专栏

黄土高原刺槐人工幼林碳密度动态变化

刘艳,苏印泉^*,张玲玲,王健,许喜明

作者信息 +

Study on dynamic change of organic carbon in young Robinia pseudoacacia plantation in Loess Plateau

LIU Yan, SU Yinquan^*, ZHANG Lingling, WANG Jian, XU Ximing

Author information +

文章历史 +

摘要

为研究黄土高原幼龄人工刺槐林地生态系统的有机碳动态变化规律,对刺槐林地在造林后4个阶段(造林2、4、6、9 a )生态系统各层次的有机碳储量进行了持续的监测与调查。结果表明:造林在2 a内对林地有机碳储量影响微小; 造林2 a后,林地生态系统各层次有机碳密度均会随着林龄的增大而呈规律性变化,其中土壤层和乔木层为生态系统有机碳的主要来源,土壤层有机碳密度及其在林地有机碳密度中所占的比例随着林龄的增大而减小,乔木层有机碳密度呈相反变化趋势。由此,黄土高原人工刺槐林生态系统有机碳密度随着林龄的增大而增加,与荒地相比,林地有机碳密度分别增加了6.2%、5.21%、21.81%和38.20%,表明黄土高原人工刺槐林在造林后会逐步发挥其显著的碳汇能力。

Abstract

In order to study the characteristic of dynamic change of organic carbon in young black locust(Robinia pseudoacacia)plantation in Loess Plateau,the storage of organic carbon in different layer of ecosystem at four stages(2, 4, 6, 9 a)of black locust were investigated and monitored continuously. The result showed that organic carbon storage density(OCD)was slightly affected within first two years, and then changed greatly in different layers of forest ecosystem with the age increase of plantations in the whole forest ecosystem. The tree layer and soil layer were the two main sources of organic carbon storage. Following the increase of the forest age, the OCD of soil layer and its proportion to the total OCD of forest land decreased, while an opposite tendency of OCD variation appeared in the tree layer. Compared with the barren land, the OCD in forest land increased by 6.2%, 15.21%, 21.81%, 38.20% with the increase of the forest age, indicating that plantations of black locust on Loess Plateau was gradually playing a significant role in carbon storage after afforestation.

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刘艳,苏印泉,张玲玲,王健,许喜明. 黄土高原刺槐人工幼林碳密度动态变化[J]. 南京林业大学学报（自然科学版）. 2013, 37(02): 28-32 https://doi.org/10.3969/j.issn.1000-2006.2013.02.005

LIU Yan, SU Yinquan, ZHANG Lingling, WANG Jian, XU Ximing. Study on dynamic change of organic carbon in young Robinia pseudoacacia plantation in Loess Plateau[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2013, 37(02): 28-32 https://doi.org/10.3969/j.issn.1000-2006.2013.02.005

中图分类号： S718.56

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基金

收稿日期:2012-05-08 修回日期:2012-11-27
基金项目:陕西省日元贷款造林生态环境监测研究(14220302)
第一作者:刘艳,硕士生。*通信作者:苏印泉,教授。E-mail: syq009@126.com。
引文格式:刘艳,苏印泉,张玲玲,等. 黄土高原刺槐人工幼林碳密度动态变化[J]. 南京林业大学学报:自然科学版,2013,37(2):28-32.