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| 关于连作人工林衰退机理几个热点问题的探讨 | |
| 引用本文： | 王华田,王延平.关于连作人工林衰退机理几个热点问题的探讨[J].山东大学学报(理学版),2013,48(7):1-8. |
| 作者姓名： | 王华田 王延平 |
| 作者单位： | 国家林业局泰山森林生态系统定位研究站, 山东省高校森林培育重点实验室, 山东农业大学林学院, 山东 泰安 271018 |
| 基金项目： | 国家自然科学基金资助项目(31070550，31270670)；山东省自然科学基金资助项目(ZR2012CM033)；山东省优秀中青年科学家奖励基金资助项目 |
| 摘 要： | 工业人工林培育和健康经营事关我国木材战略安全。连作人工林衰退机理成为林业领域的热点问题。结合当前连作人工林衰退机理研究的发展趋势,从化感效应、养分循环、根系周转3个方面阐述了当前该领域研究的热点问题。通过构建连作人工林衰退机理概念模型,阐述了各生态因子的相互关联性,指出多因素的叠加效应将导致连作人工林生产力衰退,以期为今后此方面的研究提供思路。 |
| 关 键 词： | 连作人工林 生产力衰退 化感效应 养分有效性 根系周转 |
| 收稿时间： | 2013-06-23 |
Hotspot discussion on decline mechanism of replanted plantation |
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| WANG Hua-tian , WANG Yan-ping.Hotspot discussion on decline mechanism of replanted plantation[J].Journal of Shandong University,2013,48(7):1-8. | |
| Authors: | WANG Hua-tian WANG Yan-ping |
| Institution: | Taishan Forest Ecosystem Research Station of State Forestry Administration, Key Laboratory of Silviculture of Shandong Province, Forestry College of Shandong Agricultural University, Tai’an 271018, Shandong, China |
| Abstract: | The silviculture and management of industrial plantation is crucially related to strategy safety of wood production. The decline mechanism and long-term productivity maintenance technology of replanted plantation were hotspots in forestry research. According to the research tendency of decline mechanism of replanted plantation, three hotspots such as allelopathy, nutrient cycling and root turnover, were discussed in this article. Through establishing a conceptual model about decline mechanism of replanted plantation, the relationship among different ecological factors was discussed to reveal the decline mechanism of replanted plantation was induced by multi-factors. This thesis was expected to be reference for the future researches about decline mechanism of plantation. |
| Keywords: | replanted plantation productivity decline allelopathy nutrient availability root turnover |
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