| 三叶鬼针草生物量分配与化感作用对大气温度升高的响应 |
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| 引用本文： | 王瑞龙,韩萌,梁笑婷,宋圆圆,苏贻娟,曾任森.三叶鬼针草生物量分配与化感作用对大气温度升高的响应[J].生态环境,2011(Z1). |
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| 作者姓名： | 王瑞龙 韩萌 梁笑婷 宋圆圆 苏贻娟 曾任森 |
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| 作者单位： | 华南农业大学热带亚热带生态研究所//农业部生态农业重点开放实验室//广东省高等学校农业生态与农村环境重点实验室; |
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| 基金项目： | 国家自然科学基金青年科学基金项目(31000260,30870390) |
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| 摘 要： | 全球气候变暖已经成为不容置疑的事实,同时外来入侵植物对入侵地的生态环境造成严重的危害,外来入侵植物可能对温度升高做出积极地响应。文章研究了不同温度(22、26和30℃)处理对入侵植物三叶鬼针草(Bidens pilosa L.)种子萌发、幼苗生物量分配及化感作用的影响,探讨三叶鬼针草对全球气候变暖的响应策略。结果表明;温度为22和26℃比30℃有利于三叶鬼针草种子的萌发。温度升高显著增加三叶鬼针草的株高、生物量和叶面积,三叶鬼针草幼苗增加对茎和叶的生物量投资。同时相同浓度的三叶鬼针草水浸提液对马唐(Digitaria sanguinalis(L.)Scop)和牛筋草(Eleusine indica(L.)Gaertn)的化感作用随着温度升高而增强。研究表明:温度升高促进了三叶鬼针草的生长,改变生物量分配模式同时增强了对受体植物的化感作用。温度升高可能是促进三叶鬼针草入侵的生态环境因子之一,未来全球气温变暖可能使其入侵加剧。
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| 关 键 词： | 温度升高 三叶鬼针草 生物入侵 生物量 化感作用 |
Responses of biomass allocation patterns and allelopathic potential of Bidens pilosa L.to elevated temperature |
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| WANG Ruilong,Han Meng,Liang Xiaoting,Song Yuanyuan,SU Yijuan,ZENG Rensen Institute of Tropical , Subtropical Ecology,South China Agricultural University//Key Laboratory of Ecological Agriculture,Ministry of Agriculture//Key Laboratory of Agroecology , Rural Environment of Guangdong Regular Higher Education Institutions,Guangzhou ,China.Responses of biomass allocation patterns and allelopathic potential of Bidens pilosa L.to elevated temperature[J].Ecology and Environmnet,2011(Z1). |
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| Authors: | WANG Ruilong Han Meng Liang Xiaoting Song Yuanyuan SU Yijuan ZENG Rensen Institute of Tropical Subtropical Ecology South China Agricultural University//Key Laboratory of Ecological Agriculture Ministry of Agriculture//Key Laboratory of Agroecology Rural Environment of Guangdong Regular Higher Education Institutions Guangzhou China |
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| Institution: | WANG Ruilong,Han Meng,Liang Xiaoting,Song Yuanyuan,SU Yijuan,ZENG Rensen Institute of Tropical and Subtropical Ecology,South China Agricultural University//Key Laboratory of Ecological Agriculture,Ministry of Agriculture//Key Laboratory of Agroecology and Rural Environment of Guangdong Regular Higher Education Institutions,Guangzhou 510642,China |
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| Abstract: | |
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| Keywords: | elevated temperature Bidens pilosa L biological invasion biomass allelopathy |
| 本文献已被 CNKI 等数据库收录！ |
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