| 杉木人工林生长过程威布尔模型的模拟 |
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| 引用本文： | 王艳霞,陈灿,范海兰,宋萍.杉木人工林生长过程威布尔模型的模拟[J].北华大学学报(自然科学版),2007,8(3):276-280. |
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| 作者姓名： | 王艳霞 陈灿 范海兰 宋萍 |
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| 作者单位： | 福建农林大学,林学院,福建,福州,350002;福建高校森林生态系统过程与经营重点实验室,福建,福州,350002;福建农林大学,林学院,福建,福州,350002;福建高校森林生态系统过程与经营重点实验室,福建,福州,350002;福建农林大学,林学院,福建,福州,350002;福建高校森林生态系统过程与经营重点实验室,福建,福州,350002;福建农林大学,林学院,福建,福州,350002;福建高校森林生态系统过程与经营重点实验室,福建,福州,350002 |
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| 摘 要： | 根据5种不同造林密度试验的树干解析资料,利用威布尔模型对杉木人工林胸径、树高和材积的生长过程进行了模拟,并采用改进单纯形法对模型中的参数进行了拟合.结果表明,威布尔生长模型可以有效模拟杉木人工林的胸径、树高和材积随林龄增长的生长过程,但胸径、树高和材积与密度的关系并不完全一致,同时进一步证实了改进单纯形法对非线性模型模拟的有效性.
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| 关 键 词： | 杉木 生长过程 威布尔模型 改进单纯形法 |
| 文章编号： | 1009-4822（2007）03-0276-05 |
| 修稿时间： | 2007-01-25 |
Growth Process of Cunninghamia lanceolata Plantation with Weibull Model |
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| WANG Yan-Xia,CHEN Can,FAN Hai-lan,SONG Ping.Growth Process of Cunninghamia lanceolata Plantation with Weibull Model[J].Journal of Beihua University(Natural Science),2007,8(3):276-280. |
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| Authors: | WANG Yan-Xia CHEN Can FAN Hai-lan SONG Ping |
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| Institution: | 1. Fujian Agriculture and Forestry University, Fuzhou 350002, China ; 2. Fujian Universities Key Laboratary of Forest Ecosystem Process and Management, Fuzhou 350002, China |
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| Abstract: | Based on the data of 5 different densities of Cunninghamia laceolata plantation,Weibull growth model was used to analyze growing laws of mean DBH,mean tree height and mean stem volume,and the parameters in the model were calculated by using Modified Simplex Methods(MSM).The results showed that: Weibull growth model can estimate growing process of Cunninghamia lanceolata contained DBH,tree height and volume with different densities,but it is not always identical relative between DBH,tree height and volume and density;and the validity of MSM in estimating the parameters of nonlinear model was approved again. |
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| Keywords: | Cunninghamia lanceolata Process of growth Weibull model Modified simplex methods |
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