3种壳斗科植物林缘与林内种群种子性状比较  

Comparison between Seed Traits of Edged-and Within-Forest Populations of 3 Plant Species of Fagaceae

作　　者：葛民轩 王良衍 应震 

机构地区：[1]宁波市宁海县五山林场,浙江宁海315600 [2]浙江天童国家森林公园,浙江宁波315114

出　　处：《福建林业科技》2014年第1期6-8,48,共4页Journal of Fujian Forestry Science and Technology

基　　金：宁波市重大科研项目(基于林木功能性状的森林提质增效关键技术研究与示范;2012C0027);宁波市科技攻关项目(次生中幼林近自然化改造及资源利用关键技术的研究与示范;2010C0028)

摘　　要：对浙江天童山常绿阔叶林米槠、栲树和苦槠的林缘与林内种群的种子性状进行比较研究。结果表明:米槠林缘种群的种子长度、宽度、长宽比和质量都显著大于林中种群(P<0.001);栲树林缘种群的种子长度、宽度、长宽比和质量也显著大于林中种群(P<0.001);苦槠林缘种群的种子长度、宽度和质量显著大于林中种群,但长宽比无显著差异(P=0.924)。总体来说,森林的边缘效应是导致林缘种群种子性状优于林内种群的主要生态学机制。The seed traits of edge-and within-forest populations of Castanopsis carlesii, C.fargesii and C.sclerophylla were com-pared and studied in Tiantong Mountain, Zhejiang Province.The results showed that： the seed length, width, ratio of length to width, and quality were significantly larger than within-forest population of Castanopsis carlesii （ P＆lt;0.001）;for Castanopsis farge-sii, seed length, width, the ratio of length to width, and weight were also statistically greater in edge than in within-forest population （ P〈0.001 ）; and Castanopsis sclerophylla seed length, width and weight were evidently higher than within-forest population, whereas there was no significant difference of ratio of length to width between two populations.In conclusion, edge effect of forest was the main ecological mechanism leading to better seed traits in edged-forest population than in within-forest population.

关 键 词：米槠 栲树 苦槠 种群 种子性状 

分 类 号：S718.54[农业科学—林学]