| 星星草种群地上生物量形成规律的数学拟合 |
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| 引用本文： | 肖玮 牛佳田. 星星草种群地上生物量形成规律的数学拟合[J]. 哈尔滨师范大学自然科学学报, 1997, 13(1): 102-106 |
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| 作者姓名： | 肖玮 牛佳田 |
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| 作者单位： | [1]哈尔滨师范大学 [2]佳木斯师范专科学校 |
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| 基金项目： | 黑龙江省青年科学技术计划项目,蔡火石生物科学发展基金 |
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| 摘 要： | 在松嫩盐碱草地上，我们对人工种植在碱斑土壤上生长一年、二年、三年、六星星草坪以及野生的天然星星草地中的星星草种群地上生物量的季节动态进行了测定，并进行数学拟合。用Ｌｏｇｉｓｔｉｃ曲线拟合时，抽穗期以前拟合情况较好，但不能很好地拟合星星草种群大生物量后衰老的过程。用一元多次曲线则能很好地拟合星星草种群地上生物量随生育时间的季节动态。
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| 关 键 词： | 星星草 地上生物量 数学拟合 牧草 种群 禾本科 |
MATHEMATICAL SIMULATION OF ABOVE-GROUNDBIOMASS OF POPULATION PUCCINELLIATENUIFLORA |
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| Xiao Wei Yin Hua Sun Guorong. MATHEMATICAL SIMULATION OF ABOVE-GROUNDBIOMASS OF POPULATION PUCCINELLIATENUIFLORA[J]. Natural Science Journal of Harbin Normal University, 1997, 13(1): 102-106 |
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| Authors: | Xiao Wei Yin Hua Sun Guorong |
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| Affiliation: | Xiao Wei Yin Hua Sun Guorong(Harbin Normal University)Niu Jiatian Li Xiuxia(Jiamus Teacher' College) |
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| Abstract: | On Songnen grassland, we detendbed the above-gmund biomass of oneyear growth, two-year growth, three-year growth, six-year growth and wild growth population P. tenuiflora, and we have done the mathematical simulation with them. The logistic curve fits with the above - ground biomass of P. tenuiflora before ear spmuting pariod, but it didn't fit with the senacence procss of P.tenuiflora after the above -ground biomass bad reached the matximum biomass. And the one-place multipleorder curve fit with the seasonal varation of above - gmund biomass of P. tenuiflora. |
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| Keywords: | Puccinelia tenuiflora Above - ground biomass Seasonal variation Mathematical simulation |
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