北华大学学报（自然科学版）2015，Vol.16Issue(5)：652-657,6.DOI:10.11713/j.issn.1009-4822.2015.05.023
蒙古栎林天然更新状况及影响因素研究
Characteristics and Influencing Factors of Natural Regeneration of Quercus mongolica Forest
摘要
Abstract
We investigated the regeneration quantity and regeneration tree species of Q. mongolica forest, and analyzed the impact factors,stand condition and topographic condition of natural regeneration base on the field vegetation survey in 68 plots(30 m×30 m) of Q. mongolica forest in Mid-Eastern Jilin Province. The results showed that there were 37 kinds of natural regeneration trees species of Q. mongolica forest in the survey plots, where the Q. mongolica quantity accounted for 40% of all regeneration quantity, and the total of Crataegus pinnatifida Bunge,Fraxinus rhynchophylla and Ulmus japonica was 1/3. The density of natural regeneration was 7 219/hm2 with 22. 2% seeding and 77. 8% sapling. The regeneration quantity in the forest with the mean DBH from 16 cm to 20 cm was higher,which was the highest in the forest with 400~800/hm2 and in the forest whose canopy density with 0 . 60~0 . 69 . The number of seeding and sapling increased at first and then decreased with the canopy density increasing. The regeneration number of the forest with upper part of the hillside was higher. Then the amount of regeneration with the different aspects were in sequence of half-sunny slop > half shaded slope>shady slope>sunny slope. The magnitude of regeneration of forests with the different slopes were in order straight slope <gentle slope <slope <steep slope.关键词
蒙古栎林/天然更新/影响因素Key words
Quercus mongolica forest/natural regeneration/factors分类
农业科技引用本文复制引用
郑金萍,杨学东,郭忠玲,范春楠..蒙古栎林天然更新状况及影响因素研究[J].北华大学学报（自然科学版）,2015,16(5):652-657,6.基金项目
吉林省科技发展计划项目(201201146) （201201146）
林业公益性行业科研专项(201204309) （201204309）
国家科技基础性工作专项(2007FY110400). （2007FY110400）
