摘要
以云南省第4次森林资源二类调查数据为基础,利用生物量扩展因子法及平均生物量法,结合各树种不同龄级的计算参数,估算了云南省森林植被碳储量、碳密度,并分析其空间分布格局。结果表明,云南省森林植被总碳储量为892.596 Tg,平均碳密度为39.260 t/hm^2。其中:乔木林碳储量占总碳储量的95.67%;乡土树种云南松和栎类碳储量占乔木林总碳储量的58.34%;幼、中龄林碳储量占乔木林总碳储量的49.97%;碳密度与年龄成正比;天然林的碳储量、碳密度均高于人工促进林和人工林。云南省森林植被碳储量和碳密度的空间分布总体上为西部高、东部低。研究认为,地质环境条件和人类活动干扰是造成全省碳储量和碳密度差异的重要因素。通过严格保护和恢复石漠化区域森林植被,实施森林质量精准提升工程、加强人工造林、抚育和封山育林管理等,是提高全省森林碳储量和碳密度的重要途径。
By using the data from the Second Survey of Forest Resource Inventory of Yunnan in 2016,we use the methods of Variable Biomass Extension Factor Method and average biomass computing method,and combine them with the calculation parameters of different age grades of each tree species.The carbon storage and density in different stands of forest are estimated and their spatial patterns are analyzed.The results show that the total carbon storage of forest vegetation is 892.596 Tg,and the average forest carbon density is 39.260 t/hm^2.The carbon storage of arbor forest account for 95.67% of the total carbon storage;and that of trees Yunnan pine(Pinus yunnanensis)and oak accounted for 58.34%of the total carbon storage of arbor forest;their amount increase with developed stages in time,and the carbon storage of young and middle-aged forests only account for 49.97% of the total carbon storage of arbor forest;both of carbon storage and carbon density in natural forest are higher than that in artificial growth forest and plantation forest.The spatial distribution of both of that in Yunnan province is generally higher in the western regions but lower in the eastern regions.For management consideration we suggest that geological and environmental conditions and anthropogenic effects may be the important factors leading to uneven distribution of that.It is an important way to improve the forest carbon storage and carbon storage per unit area in the whole province by strictly protecting and restoring the forest vegetation in the rocky desertification area,it is necessary to carry out the project of precise improvement of forest quality,strengthening the artificial afforestation,tending and the management toward the closure of forests in the mountain and raising the forest,etc.
作者
汤浩藩
许彦红
艾建林
TANG Haofan;XU Yanhong;AI Jianlin(Forest College,Southwest Forest University,Kunming 650224,China;Yunnan Forest Survey and Planning Institute,Kunming 650051,China)
出处
《林业资源管理》
北大核心
2019年第5期37-43,共7页
Forest Resources Management
基金
森林经理学国家林业局重点学科(XKZ200901)
关键词
森林植被
碳储量
碳密度
区域空间分布
云南省
forest vegetation
carbon storage
carbon density
spatial distribution
Yunnan province
