| 宁夏盐池沙区生态经济型防护林体系林种树种优化比例研究 |
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| 引用本文： | 孙枫,李生宝,蒋齐.宁夏盐池沙区生态经济型防护林体系林种树种优化比例研究[J].林业科学研究,2003,16(4):459-464. |
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| 作者姓名： | 孙枫 李生宝 蒋齐 |
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| 作者单位： | 1. 国家林业局三北防护林建设局,宁夏银川,750001
2. 宁夏农科院沙漠治理研究所,宁夏银川,750002 |
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| 基金项目： | 宁夏"九五"科技攻关项目"盐池沙漠化土地综合治理(96 01 02)"资助 |
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| 摘 要： | 运用层次分析方法对盐池沙区林业建设的现状进行了分析,建立了盐池县生态经济型防护林体系的优化模型,提出了盐池县风沙区生态经济型防护林体系林种、树种的最优比例。林地面积由原来的6．894万hm^2增加到10．905万hm^2,固沙林、饲料林、草原防护林、农田防护林、经济林、薪炭林、特用林分别占25．68％、20．39％、14．09％、12．09％、10．59％、8．78％、8．39％。
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| 关 键 词： | 宁夏盐池沙区 生态经济型防护林体系 林种 树种 比例 |
| 文章编号： | 1001-1498(2003)04-0459-06 |
| 收稿时间： | 2002/11/20 0:00:00 |
Study on Forest Type/Tree Species Structure Optimization of Yanchi Sandy Area Eco-economical Shelterbelt System in Ningxia |
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| SUN Feng,LI Sheng-bao and Jiang Qi.Study on Forest Type/Tree Species Structure Optimization of Yanchi Sandy Area Eco-economical Shelterbelt System in Ningxia[J].Forest Research,2003,16(4):459-464. |
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| Authors: | SUN Feng LI Sheng-bao and Jiang Qi |
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| Institution: | Bureau of Three Norths Shelter Forest Construction, State Forestry Administration, Yinchuan750001, Ningxia, China;Institute of Desert Control, Ningxia Academy of Agriculture, Yinchuan750002, Ningxia, China;Institute of Desert Control, Ningxia Academy of Agriculture, Yinchuan750002, Ningxia, China |
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| Abstract: | Structure analysis was used to analyze the present situation of forestry construction of Yanchi sandy area in Ningxia.The optimized model for the eco ecological shelterbelt system in Yanchi was established and the optimal pattern of forest type,tree species in the sandy area of Yanchi county was put forward.The area of forestland increased from 68.94 thousand ha to 109.05 thousand ha,in which the areas of farmland shelterbelt,economic forest,fuelwood forest and the forest for special use account for 25.68%,20.39%,14.09%,12.09%,10.59%,8.78% and 8.39%respectively. |
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| Keywords: | Yanchi sandy area shelterbelt system forest type tree species |
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