森林火灾后蒙古栎林碳素分布及储量的分析

以黑龙江塔河林业局施业区内的杜香—蒙古栎林和草类—蒙古栎林为对象,对火灾前后碳素的分布和储量进行了研究。结果表明:森林火灾发生后,蒙古栎林地上、地下部分的碳储量均表现为减少。杜香—蒙古栎林碳储量变化量为-33.812 9 t.hm-2,其中:地上部分为-0.499 4 t.hm-2,地下部分为-33.313 5 t.hm-2,贡献率分别为1.5%和98.5%;杜香—蒙古栎林碳储量变化量为-104.944 6 t.hm-2,其中:地上部分为-76.452 7 t.hm-2,地下部分为-28.491 9 t.hm-2,贡献率分别为72.9%和27.1%。蒙古栎林地上、地下火灾前后碳储量的分布与变化同林分类型密切相关。

Carbon amount and distribution of Querus mongolica forest after fire

The carbon amounts and distribution were investigated in Ledum - Querus mongolica forest and grasses - Querus mongolica forest before and after fire. Results showed that the carbon amounts of aboveground and belowgreund were both decreased after fire. The change of carbon amount was -33.8129t·hm^-2 in Ledum - Quertts mongolica forest, -0.4994t·hm^-2 for aboveground, and -33.3135t·hm^-2 for belowground, with 1.5 % and 98.5 % contribution, respectively. The change of carbon amount was -104.9446t·hm^-2 in grasses- Querus mongolica forest, -76.4527t·hm^-2 for above,round, and -28.4919t·hm^-2 for belowground, with 72.9% and 27.1% eontribufion, respectively. The distribution of carbon amount of aboveground and belowground before and after fire were related with the forest type.