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杂草种子运动的矩阵模型 被引量:1

Matrix Models for the Population Dynamics and Distribution of Weed Seedbanks
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摘要 人类活动(如耕作等)、捕食者活动(如蚂蚁、蚯蚓等)及一些无生命因素(如下雨、冰雪覆盖等),使土壤中的杂草种子在土壤中各个方向上不断运动,运用L eslie矩阵和M arkov链建立了一个具年龄结构的杂草种子在土壤中随时间动态变化的一般矩阵模型. Seeds move in the soil due to man's activities (cultivation practices, etc. ), predators (ants, earthworms, etc. ), abiotic factors (rain, frost, etc. ). Matrix models were established to define weed seedbank population dynamic and its distribution with Leslie & Markov matrix.
出处 《数学的实践与认识》 CSCD 北大核心 2005年第12期101-106,共6页 Mathematics in Practice and Theory
基金 国家重大基础研究前期专项(2002CCA00300) 教育部科技重点项目(01172)
关键词 种子库 Leslie矩阵 MARKOV链 矩阵模型 seedbank Leslie matrix Markov chain matrix model
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参考文献7

  • 1Harper J L.Population Biology of Plants[M].Academic Press,New York,1977.
  • 2Moss S R.Influence of cultivation on the soil.Ⅷ[J].Colloque International sur la Biologie,et la Systematique des Mauvais Herbes,1998.71-80.
  • 3Gonzalez-andujar J L.A matrix model for the population dynamics and vertical distribution of weed seedbanks[J].Ecological Modelling,1997,97:117-120.
  • 4Cousens R,Moss S R.A model of the effect of cultivation on the vertical distribution of weed seeds within the soil[J].Weed Research,1990,30:61-70.
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  • 6Cussan G W,Moss S R.In:AUSTIN R B(Editor),Population Dynamics of Annual Grass Weeds[M].Decision making in the practice of crop protection.BCPC,London,1982.91-98.
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