| 凋落物和土壤覆盖对动物取食和搬运辽东栎种子的影响 |
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| 引用本文： | 闫兴富,杨晋,思彬彬,张嫱,张靠稳.凋落物和土壤覆盖对动物取食和搬运辽东栎种子的影响[J].生态学杂志,2011,30(11). |
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| 作者姓名： | 闫兴富 杨晋 思彬彬 张嫱 张靠稳 |
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| 作者单位： | 1. 北方民族大学生物科学与工程学院,银川,750021
2. 北方民族大学化学与化学工程学院,银川,750021 |
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| 基金项目： | 国家自然科学基金项目(30960087); 宁夏高等学校研究生教育创新计划项目(A09008)资助 |
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| 摘 要： | 在六盘山区的华北落叶松人工林,研究了清除凋落物、凋落物覆盖和土壤覆盖(以不清除凋落物直接将种子投放于森林地表为对照)等处理对动物取食和搬运辽东栎种子的影响.结果表明:种子释放3d后,凋落物和土壤覆盖处理种子均具有较高的留存率(分别为10.7％和7.0％)；释放14 d后,土壤覆盖处理种子的留存率仍最高(0.7％),但凋落物覆盖处理种子的留存率为0.凋落物和土壤覆盖处理种子的就地取食率很高(分别为45.9％和41.5％)；清除凋落物处理种子的就地取食率最低(27.0％),但其被搬运后的取食率最高(49.8％)；凋落物覆盖、清除凋落物和土壤覆盖处理种子被动物搬运后的埋藏率均显著高于对照(P＜0.01).种子被动物搬运后集中分布于5 m以内,尤其在＜1 m和l～2m两个距离组的分布频率更高；种子被搬运后取食的平均距离大干埋藏的平均距离,以土壤覆盖和凋落物覆盖处理最大,分别为2.38 m±0.55 m和1.44m±0.26 m.
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| 关 键 词： | 辽东栎 种子取食和搬运 分散贮藏 种子扩散 六盘山区 |
Effects of litter and soil cover on Quercus liaotungensis seed predation and removal by animals |
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| YAN Xing-fu,YANG Jin,SI Bin-bin,ZHANG Qiang,ZHANG Kao-wen.Effects of litter and soil cover on Quercus liaotungensis seed predation and removal by animals[J].Chinese Journal of Ecology,2011,30(11). |
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| Authors: | YAN Xing-fu YANG Jin SI Bin-bin ZHANG Qiang ZHANG Kao-wen |
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| Institution: | YAN Xing-fu1**,YANG Jin2,SI Bin-bin1,ZHANG Qiang1,ZHANG Kao-wen1(1College of Biological Science and Engineering,Beifang University for Nationalities,Yinchuan 750021,China,2College of Chemistry and Chemical Engineering,China) |
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| Abstract: | In this study,Quercus liaotungensis seeds were released on the ground of a Larix principis-rupprechtii plantation in Liupan Mountains,and an investigation was conducted on the seed predation and removal by animals in the treatments litter elimination,litter cover,and soil cover,taking no litter elimination and releasing seeds directly to the ground as the control.After 3 days of release,the retention rate of Q.liaotungensis seeds in treatments litter cover and soil cover was 10.7% and 7.0%,respectively.Afte... |
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| Keywords: | Quercus liaotungensis seed predation and removal scattered hoarding seed dispersal Liupan Mountains |
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