| 河北省承德地区防护林体系林种结构的最佳模式 |
| |
| 引用本文： | 李悦黎,钟义山,李卫忠.河北省承德地区防护林体系林种结构的最佳模式[J].西北林学院学报,1989,4(2):12-19. |
| |
| 作者姓名： | 李悦黎 钟义山 李卫忠 |
| |
| 作者单位： | 西北林学院林学系
(李悦黎，钟义山)，西北林学院林学系(李卫忠) |
| |
| 摘 要： | 本文用线性规划方法,把以防护效益为主并满足社会需求作为约束条件,使防护林工程的费用最小作为目标,计算出了河北省承德地区防护林体系林种结构的61个方案。对不同情况,如资金不足、取得较好的经济效益、解决木材供需矛盾以及其它条件的变化等等,可以从61个方案中选出一个最佳方案。
|
| 关 键 词： | 防护林 林种结构 线性规划 河北 承德 |
A Best Pattern of Forest Constitution for the Protection Forest System of Chengde Region,Hebei Province |
| |
| Li Yueli Zhong Yishan Li Weizhong.A Best Pattern of Forest Constitution for the Protection Forest System of Chengde Region,Hebei Province[J].Journal of Northwest Forestry University,1989,4(2):12-19. |
| |
| Authors: | Li Yueli Zhong Yishan Li Weizhong |
| |
| Institution: | Dept.of Forestry |
| |
| Abstract: | 61 schemes of forest constitution for the protection forest system of Chengde Region,Hebei Province, were calculated by the linear programming in which the protection benifit and the meeting of social demands are restrictive conditions, and minimizing engineering cost of protection forest is objective function. To the various conditions, such as the lack of funds, achieving better economic benifit, solving the contradiction between timber demand and supply, and the changing of other conditions etc, a best scheme can be selected from 61 schemes. |
| |
| Keywords: | protection forest forest constitution linear programming Hebei Chengde |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
