山西太岳山不同林龄油松林生物量及碳储量研究

被引:16
作者
宋娅丽
韩海荣
康峰峰
机构
[1] 北京林业大学林学院
关键词
油松林; 林龄; 碳密度; 生物量; 碳储量;
D O I
10.13869/j.cnki.rswc.2016.01.005
中图分类号
S718.5 [森林生态学];
学科分类号
071012 ; 0713 ;
摘要
基于山西太岳山油松林5种林龄序列(18,20,25,38和42年生)来研究地上和地下各部分生物量和碳储量分配情况。结果表明:18,20,25,38和42年生油松林地上部分和地下部分不同器官碳素密度波动分别为0.411 2~0.556 0,0.424 8~0.532 8g/g。地上和地下部分总生物量随着林龄的增加逐渐增加,各器官碳储量与生物量呈显著正相关。不同林龄油松林地上部分碳库分别为38.18,42.28,56.64,86.36,95.74t/hm2,地下部分碳库分别为8.58,8.46,8.92,19.92,38.70t/hm2。树干在碳库比例中最大,其次是根桩、活枝,最小的是树皮,分别占油松林总碳储量的30.90%54.70%,11.93%28.41%,8.55%15.77%和0.45%0.88%。油松林地下部分与地上部分碳储量的比值从18年生的0.22快速降低到25年生的0.16。油松林的固碳潜力随着林龄的增加而逐渐增加,从25~42年生的油松林成熟期是碳积累的重要阶段。
引用
收藏
页码:29 / 33
页数:5
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