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| 模拟化感作物种植密度对杂草种群数量的作用 | |
| 引用本文： | 刘迎湖,张国权,曾任森,Min An. 模拟化感作物种植密度对杂草种群数量的作用[J]. 生物数学学报, 2007, 22(3): 565-568 |
| 作者姓名： | 刘迎湖 张国权 曾任森 Min An |
| 作者单位： | 1. 华南农业大学理学院,广东,广州,510642;华南农业大学农学院,广东,广州,510642 2. 华南农业大学理学院,广东,广州,510642 3. 华南农业大学农学院,广东,广州,510642 4. E.H. Graham Centre for Agricultural Innovation (NSW Department of Primary Industries and Charles Sturt University), Wagga Wagga, NSW 2678, Australia |
| 摘 要： | 具化感作用的作物其种植密度会影响杂草的种群动态。本研究应用数学模型作为分析问题的工具，对作物化感作用下杂草种群动态进行了模型分析和计算机模拟，结果表明，当作物的种植密度较大时，杂草的种群动态数量可以得到有效的控制；而当作物种植密度低于一定数量时，其化感作用对杂草的种群动态数量影响不大。 |
| 关 键 词： | 化感作用 化感物质 模型 计算机模拟 |
| 文章编号： | 1001-9626（2007）03-0565-04 |
| 收稿时间： | 2005-01-12 |
| 修稿时间： | 2005-01-12 |
Simulating the Effects of Allelopathic Crop Density on Weeds Population |
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| LIU Ying-hu,ZHANG Guo-quan,ZENG Ren-sen,Min An. Simulating the Effects of Allelopathic Crop Density on Weeds Population[J]. Journal of Biomathematics, 2007, 22(3): 565-568 | |
| Authors: | LIU Ying-hu ZHANG Guo-quan ZENG Ren-sen Min An |
| Affiliation: | 1 College of Sciences, South China Agricultural University, Wushan Guangzhou 510642 China; College of Agriculture, South China Agricultural University, Wushan Guangzhou 510642 China; E.H. Graham Centre for Agricultural Innovation (NSW Department of Primary Industries and Charles Sturt University |
| Abstract: | The density of allelopathic crops can affect population dynamics of weeds. This study considered crop allelopathy factor into Logistic model to simulate such density-related interactions. Simulating results showed that at high crop densities, weed population could be effectively controlled, whereas as crop density was lower, there was no obvious effects on weed population dynamics. Its implication in field weeds management was also discussed. |
| Keywords: | Allelopathy Allelochemical Competition Density-dependent interference Weeds management |
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