1. 新疆林业科学院 现代林业研究所,新疆,乌鲁木齐,830000
2. 国家林业和草原局西北调查规划设计院,陕西,西安,710048
纸质出版:2021
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张绘芳, 张景路, 侯晓巍, 等. 新疆天山山区乔木林碳密度变化特征及其影响因素[J]. 水土保持通报, 2021,41(2):122-127.
Zhang Huifang, Zhang Jinglu, Hou Xiaowei, et al. Variation Characteristics and Related Factors of Carbon Density of Arbor Forest in Tianshan Mountains[J]. Bulletin of Soiland Water Conservation, 2021, 41(2): 122-127.
张绘芳, 张景路, 侯晓巍, 等. 新疆天山山区乔木林碳密度变化特征及其影响因素[J]. 水土保持通报, 2021,41(2):122-127. DOI: 10.13961/j.cnki.stbctb.2021.02.016.
Zhang Huifang, Zhang Jinglu, Hou Xiaowei, et al. Variation Characteristics and Related Factors of Carbon Density of Arbor Forest in Tianshan Mountains[J]. Bulletin of Soiland Water Conservation, 2021, 41(2): 122-127. DOI: 10.13961/j.cnki.stbctb.2021.02.016.
[目的] 分析山区乔木林的碳密度动态变化特征,为准确估算新疆山区森林碳储量及未来可持续发展提供科学依据。[方法] 基于2001—2016年新疆天山山区乔木林每间隔5 a进行1次的样地调查数据,运用统计学方法分析了该区域乔木林碳密度的变化特征及其影响因素。[结果] 自2001—2016年间,新疆天山山区乔木林碳密度整体上表现为增长趋势,不同区域表现为:天山西部 > 天山东部 > 天山中部,碳密度变化率表现为:天山中部 > 天山东部 > 天山西部;从林龄角度天山山区乔木林碳密度在天山中部和东部地区均表现为随林龄增长先升后降趋势,近熟林最高,天山西部则表现为随林龄增加而增长的趋势,碳密度变化率均表现为随着林龄增加而递减;从地形因子角度分析在不同坡度呈先升后降趋势,天山西部和中部地区在斜坡碳密度最高,天山东部在缓坡碳密度最高,在不同海拔天山西部和中部地区碳密度随海拔上升整体上呈先升后降趋势,天山东部则随海拔上升而递减,在不同坡向碳密度在南坡最低,其他坡向无明显规律。[结论] 自天保工程实施以来,天山山区乔木林碳密度持续增长,其中林龄对碳密度和碳密度变化率影响显著,因此在森林管理方面应加强科学合理地进行幼林抚育和更新恢复,优化林龄结构,进一步提高天山天然林资源的碳汇功能和固碳潜力,促进该区域森林资源健康可持续发展。
[Objective] The dynamic change characteristics of carbon density of arbor forest in Tianshan Mountains were analyzed
in order to provide scientific basis for accurate estimation of forest carbon storage and sustainable development in the future.[Methods] Based on the plots of arbor forest in Tianshan Mountains of Xinjiang area
that were investigated every five years from 2001 to 2016
the variation and related factors of carbon density of arbors in this region were analyzed statistically.[Results] From 2001 to 2016
the carbon density of arbor forests in the Tianshan Mountains of Xinjiang area increased with different degrees:the central part of Tianshan Mountains > the west part of Tianshan Mountains > the east part of Tianshan Mountains
and the carbon density change rate was higher in the central part of Tianshan Mountains than in the east part of Tianshan Mountains than in the west part of Tianshan Mountains. From the perspective of forest age
the carbon density of arbor forests in the central and Eastern Tianshan Mountains showed a trend of first rising and then falling with forest age
and the near mature forests had the highest carbon density. In the Western Tianshan Mountains
the carbon density rate showed an increasing trend with forest age. With terrain changes
the carbon density increased first and decreased afterwards with slope degrees. In the Western and Central Tianshan Mountains
the carbon density was the highest in the steep hill. And in East Tianshan Mountains
the highest carbon density was in gentle slope. With the increase of elevation
the carbon density increased first and decreased afterwards in the western and central parts and decreased in the East Tianshan Mountains. With the change of slope orientation
the carbon density in the south slope was the lowest
and no obvious pattern in others.[Conclusion] Since the implementation of Natural Forest Protection Project
the arbor carbon density increased in Tianshan Mountains
and the forest age has the most significant effect. Therefore
in order to improve the carbon sequestration function of natural forest in Tianshan Mountains and explore the greater carbon potential
we should strengthen the regeneration of young forest
optimize the structure of forest age
and promote the healthy and sustainable development of forest resources.
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