| 我国森林资源蓄积量及合理采伐量趋势研究 |
| |
| 引用本文： | 智长贵,郑冬梅.我国森林资源蓄积量及合理采伐量趋势研究[J].林业资源管理,2011(3). |
| |
| 作者姓名： | 智长贵 郑冬梅 |
| |
| 作者单位： | 国家林业局调查规划设计院,北京,100714 |
| |
| 摘 要： | 以第七次全国森林资源清查数据为基础,以《森林采伐作业规程》等规定为依据,采用森林收获调整数学模型等对全国18个主要优势树种(组)的龄组、面积结构进行了调整。根据调整结果,建立了森林资源合理采伐量、蓄积量与年度因子之间的关系。其中,Logistic生长模型对合理采伐量与年度因子回归精度较高,方程确定指数R2为0.985;Richard生长方程对蓄积量与年度因子回归精度较高,方程确定指数R2为0.985。调整结束后,全国森林资源蓄积稳定在300亿m3以上,合理采伐量稳定在7.5亿m3左右。
|
| 关 键 词： | 森林资源蓄积量 合理采伐量 数学模型 收获调整 |
Research Trend of Forest Resources Stock and Rational Harvest in China |
| |
| ZHI Changgui,ZHENG Dongmei.Research Trend of Forest Resources Stock and Rational Harvest in China[J].Forest Resources Management,2011(3). |
| |
| Authors: | ZHI Changgui ZHENG Dongmei |
| |
| Institution: | ZHI Changgui,ZHENG Dongmei(Academy of Forestry Inventory and Planning,SFA,Beijing 100714,China) |
| |
| Abstract: | On the basis of the data of the 7th National Forest Inventory,and according to the Code of Forest Harvesting and so on,the area and age class structures of 18 dominant tree species are adjusted through the Mathematical model.According to the results,Logistic growth model has high regression precision of volume and year factors,Adjusted R Square(R2) is 0.985,and Richard growth model has high regression precision of normal harvesting and year factors,Adjusted R Square(R2) is 0.985.After adjustment,Accumulatio... |
| |
| Keywords: | forest resources stock rational harvest mathematical model adjustment and yield |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
