摘要
本文运用数学分析的方法,对晋西山区的林种结构进行了优化选择、结果表明;调整西山地区生产结构以后,农、林、牧能合理、健康地发展,人民生活水平得到改善,并确定了适合于西山地区发展的林种结构为;防护林50%、用材林45%、经济林5%,充分发挥了生态效益、经济效益和社会效益,并根据不同目标、选用了不同的优化方案.
By using the mathematic analysis method, this paper, gives an overview about the plan of superiority of woods combination in the western mountain area of Shanxi province. The result has shown the following: after adjusting the productive composition on the western mountain area,The Agriculture-Forest-Stockraising can be developed normally, and the people's living standard has been improved. In the combination of woods 50 per cent shelter-forest was found, 45 per cent timber-forest and 5per cent e-conomic-forest. This combination is suitable for the develop-ment in the western mountain area and for the ecological, economical and social benefit. According to the different purposes, different designswere developed.
关键词
晋西山区
防护林
林种
结构
优化
The western mountain area of Shanxi province, The shelter-forest system, Superiority, Woods combination