封育对冀北山地人工针叶林林下植被恢复的影响  

The Influences of Closing Hillsides on Restoration under Artificial Coniferous Forests in North Hebei

作　　者：李春强[1] 鲁绍伟[1,2] 王雄斌[2] 鲁少波[2,3] 曹颖[4] 

机构地区：[1]河北省气象与生态环境实验室,石家庄050021 [2]北京林业大学,北京100083 [3]河北省林业局,石家庄050081 [4]北京师范大学地理学与遥感科学学院,北京100875

出　　处：《灌溉排水学报》2009年第1期107-109,共3页Journal of Irrigation and Drainage

基　　金：河北省生态环境监测实验室项目(M-0610);国家“十一五”科技攻关项目(2006BAD-03A11-4)

摘　　要：林下植被在促进养分物质循环、维持立地质量、涵养水源以及保持水土等方面有重要的作用。以木兰林管局较强封育、较弱封育和非封育等3种封育强度的人工油松林和人工落叶松林林下植被为研究对象,对其物种丰富度、群落结构特征和生物量的差异进行了分析。结果表明,较强封育区油松林下植被物种数是较弱封育区的1.27倍,是非封育区的2.03倍,平均高度分别为较弱封育区和非封育区的1.52倍和3.48倍;植被盖度值分别提高11.42%和52.21%。较强封育区油松林下植被生物量是较弱封育区的1.27倍,是非封育区的2.03倍,封育对林下植被地上部分生长的影响,间接的影响了地下部分生长。加强封育是提高林下植物种类与数量,提高人工林立地质量与生态效益的一种重要措施与途径。Undergrowth vegetation has played an important role on promoting nutrient cycle, site quality maintaining, water conserving and conservation of water and soil, etc. This paper has the undergrowth vegetation in artificial pinus tabulaeformis forests and artificial Larix Principis-cupprechitii forests which are in 3 different hillsides enclosed degree： strong, middle and none as the research object. The vegetation diversity, community structure, species diversity, community similarity were investigated. The results show that species of vegetation under pinus tabulaeformis forests with strong enclosure is 1.27 times more than that with weak enclosure, and is 2.03 times more than non-enclosure. The average height is 1.52 times and 3.48 times. The value of vegetation coverage increased 11.42% and 52.21% respectively. Biomass with strong enclosure is 1.27 times more than that with weak enclosure, and 2.03 times more than non-enclosure. Impact that enclosure has on undergrowth vegetation aboveground has indirectly effected growing underground. Enhancing enclosure is one of important measures for increasing undergrowth vegetation species and quantity, site quality of timber plantations and ecological benefits.

关 键 词：封育 人工针叶林 林下植被 物种丰富度 群落结构特征 生物量 

分 类 号：S718.5[农业科学—林学]