| 松果采摘对种子库的影响及其对动物影响的探讨 |
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| 引用本文： | 刘足根,姬兰柱,朱教君.松果采摘对种子库的影响及其对动物影响的探讨[J].中国科学院研究生院学报,2005,1(5):596-603. |
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| 作者姓名： | 刘足根 姬兰柱 朱教君 |
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| 作者单位： | 中国科学院沈阳应用生态研究所，中国科学院沈阳应用生态研究所，中国科学院沈阳应用生态研究所 沈阳110016中国科学院研究生院，北京100049，沈阳110016，沈阳110016 |
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| 基金项目： | 国家自然科学基金(30371149)，中国科学院百人计划项目，中国科学院沈阳应用生态研究所领域前沿项目(SLYQ0408)联合资助 |
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| 摘 要： | 根据食物链原理和动物与生境密切的关系，探讨了松果采摘对长白山自然保护区动物的影响，认为松果采摘后一方面松籽没有动物帮助搬运使红松不能正常天然更新，影响了红松林生态系统正常演替而破坏了动物生境；另一方面使得保护区内以松籽为主要食物来源的动物因缺少食物而发生数量变化，致使食物链遭受破坏，从而导致红松林中动物分布发生变化。
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| 关 键 词： | 长白山自然保护区 松果采摘 种子库 动物分布 食物链 |
| 文章编号： | 1002-1175(2005)05-0596-08 |
| 修稿时间： | 2004年9月9日 |
Impact of Cone-Picking on Seed Banks and Discussion on Its Impact on Animals |
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| LIU Zu-Gen,JI Lan-Zhu,ZHU Jiao-jun.Impact of Cone-Picking on Seed Banks and Discussion on Its Impact on Animals[J].Journal of the Graduate School of the Chinese Academy of Sciences,2005,1(5):596-603. |
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| Authors: | LIU Zu-Gen JI Lan-Zhu ZHU Jiao-jun |
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| Institution: | 1 institute of applied ecology, Chinese academy of sciences, Shenyang 110016；
2 graduate school of Chinese academy of sciences, Beijing, 100039 |
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| Abstract: | In the Changbai Mountain Natural Reserve, there were more than 250 terrestrial vertebrate species, accounted for over 69% of animals in Changbai Mountain. Many of they were rare and in severely danger. Every year there are Korean pine trees that can fruit cones in original Korean pine forest, these cones provide a lot of food for animals, so animals depend on cones much. However, because of continuously commercial cone-picking, theses cones on Korean pine tree sharply reduced in short time and most of them were dropped during cone-picking. The density of Korean pine seed on the floor was 1 582~2 640·hm-2 which accounted for 0.3~0.5% of that in 1970s, furthermore, over 67.8% of those seeds were rotten in Korean pine forest. As a result, they would badly affect natural regeneration of Korean pine and food source of animal. Therefore, the impacts of cone-picking on animals were discussed according to the principle of food chains and the relationships between animals and habitats. The result indicated that, on the one hand, Korean pine could not regenerate naturally without animals’ help, which affected the normal succession of Korean pine forest, as its result, habitats would be destroyed. On the other hand, animals’ amount would change because of lacking of Korean pine seeds in Korean pine forest, which would destroy food chains there so that distribution of animal will alter in Korean pine forest of Changbai Mountain Natural Reserve. |
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| Keywords: | Changbai Mountain Nature Reserve cone-picking seed bank distribution of animals food chains |
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