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当前位置: 首页 > 文章 > 秦岭南坡板栗种子雨动态变化及虫蛀特征 陕西林业科技 2016 (5) 11-14
Position: Home > Articles > Seed Rain Dynamic Change and Infestation Characteristic of Castanea mollissimain the South Slopes of Qinling Mountains Shaanxi Forest Science and Technology 2016 (5) 11-14

秦岭南坡板栗种子雨动态变化及虫蛀特征

作  者：
王京;张博;侯祥;陈晓宁
单  位：
陕西师范大学生命学院;陕西省动物研究所
关键词：
板栗;种子雨;种子产量;虫蛀率;秦岭南坡
摘  要：
为了了解板栗(Castanea mollissima)种子雨动态变化过程及虫蛀特征,2011—2013年在秦岭南坡佛坪国家自然保护区,对板栗种群的种子雨下落过程及构成特征进行了野外调查研究。结果表明:3年中板栗的种子雨动态变化相似,均在8月下旬开始掉落,高峰期基本出现在10月中上旬左右,在11月下旬掉落结束;2011年和2013年板栗种子雨密度、种子产量分别为(48.58±6.46)、(35.30±7.86)粒·m-2和(47.88±7.47)、(32.25±9.00)粒·m-2,均显著高于2012年的(20.47±1.20)、(13.57±0.21)粒·m-2;板栗种子虫蛀率与种子产量有一定关系,在种子产量较低年份(2012年)虫蛀率有升高趋势,在种子产量较高年份(2011年和2013年)有降低趋势;板栗种子产量也可能存在大小年现象。
译  名：
Seed Rain Dynamic Change and Infestation Characteristic of Castanea mollissimain the South Slopes of Qinling Mountains
作  者：
WANG Jing;ZHANG Bo;HOU Xiang;CHEN Xiao-ning;Shaanxi Institute of Zoology;College of Life Sciences,Shaanxi Normal University;
关键词：
Castanea mollissima;;seed rain;;seed production;;infested rate;;south slopes of Qinling Mountains
摘  要：
To understand the seed rain dynamic change and infestation characteristic of Castanea mollissima,the seed rain process and composition of Castanea mollissima in Foping National Natural Reserve,Qinling Mountains were investigated in 2011,2012 and 2013.The results showed that:i)the seed rain dynamic changes were are similar in these three years-seeds began to fall in late August and peak period came in early to mid of October and the fall ended in late of November.ii)The seed rain density and seed production of Castanea mollissima were 48.58±6.46nuts/m2,35.30±7.86nuts/m2 and 47.88±7.47nuts/m2,32.25±9.00nuts/m2 in 2011 and 2012,respectively,which were all significantly higher than those in 2012(20.47±1.20nuts/m2 and ±13.57±0.21nuts/m2,respectively).iii)There was a certain relationship between the insect infestation rate and the seed production of Castanea mollissima,the insect infestation rate of seeds tending to rise in the lower seed production year(2012)and decrease in the higher seed production years(2011and 2013).iv)Three consecutive years of investigation and study showed that there may exist an alternate bearing of seeds in Castanea mollissima.

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