| 基于单木过程模型的杉木林分生长模拟研究 |
| |
| 引用本文： | 马莉燕,张怀清,李永亮,郭明春,张晔珵.基于单木过程模型的杉木林分生长模拟研究[J].林业科学研究,2015,28(4):551-556. |
| |
| 作者姓名： | 马莉燕 张怀清 李永亮 郭明春 张晔珵 |
| |
| 作者单位： | 中国林业科学研究院资源信息研究所, 北京 100091;中国林业科学研究院资源信息研究所, 北京 100091;中国林业科学研究院资源信息研究所, 北京 100091;河北科技师范学院园艺科技学院, 河北 秦皇岛 066004;中国林业科学研究院资源信息研究所, 北京 100091 |
| |
| 基金项目： | "十二五"国家863计划课题(2012AA102002);国家自然科学基金(31170590)。 |
| |
| 摘 要： | 基于林分尺度的3-PG模型原理,在考虑单木林分生理生态过程的基础上,改进了生物量积累和分配子模型,建立适应于单木生长的生理生态过程模型,实现基于单木过程模型的林分生长预测。选择胸径和树高生长量2个指标与实测值对比分析,结果表明:改进模型对胸径和树高生长量的模拟平均精度分别为95.57%和91.16%,均明显高于3-PG模型对应的89.4%和85.18%的平均模拟精度,改进模型的模拟精度显著提高,模拟效果更好。
|
| 关 键 词： | 3-PG模型 单木生长模拟 杉木林分生长 |
| 收稿时间： | 2014/11/26 0:00:00 |
Growth Simulation of Chinese Fir Based on Individual-Tree Process Model |
| |
| MA Li-yan,ZHANG Huai-qing,LI Yong-liang,GUO Ming-chun and ZHANG Ye-cheng.Growth Simulation of Chinese Fir Based on Individual-Tree Process Model[J].Forest Research,2015,28(4):551-556. |
| |
| Authors: | MA Li-yan ZHANG Huai-qing LI Yong-liang GUO Ming-chun and ZHANG Ye-cheng |
| |
| Institution: | Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China;Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China;Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China;College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, Hebei, China;Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China |
| |
| Abstract: | The biomass production model and distribution model were improved based on 3-PG model theory, so as the individual tree growth model could be established to achieve the growth forecast of the Chinese fir (Cunninghamia lanceolata) stand. In this study, the diameter at breast height (DBH) and height (H) were used to evaluate and compare the results of the model simulation and field data. It showed that the average analog precisions of DBH and H of the improved model were respectively 95.57% and 91.16%, significantly higher than that of the 3-PG model, whose precisions were 89.4% and 85.18%. The simulation accuracy of the improved simulation model was significantly higher and the simulation results were better. |
| |
| Keywords: | 3-PG model individual tree growth model Chinese fir stand growth |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《林业科学研究》浏览原始摘要信息 |
| 点击此处可从《林业科学研究》下载免费的PDF全文 |
|
