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| 乌兰布和沙漠绿洲农田防护林防风阻沙效益研究 | |
| 引用本文： | 杨婷婷,柴会强,姚国征,丁国栋.乌兰布和沙漠绿洲农田防护林防风阻沙效益研究[J].林业资源管理,2006(6):42-45,83. |
| 作者姓名： | 杨婷婷 柴会强 姚国征 丁国栋 |
| 作者单位： | 1. 中国农业科学院草原研究所,内蒙古,呼和浩特,010010 2. 包头稀土高新区国土资源管理局,内蒙古,包头,014010 3. 内蒙古国土资源信息院,内蒙古,呼和浩特,010020 4. 北京林业大学水土保持学院,北京,100083 |
| 基金项目： | 国家自然科学基金资助项目“基于空气动力学流动阻力及绕流理论的植被防风蚀机理研究”(30471422) |
| 摘 要： | 对乌兰布和沙漠绿洲几种典型结构和配置的农田防护林带进行风速观测表明,其防风效益与林带高度、结构、疏透度等因子有关,稀疏型林带防风效果最佳,疏透型次之,通风型防风效果最差;在林带结构相同的情况下,林带降低风速的作用随着林带高度的增加而增加;防护林可降低地表输沙量,且林后输沙量下降比例大于林前。 |
| 关 键 词： | 乌兰布和沙漠绿洲 农田防护林 防风阻沙效益 |
| 文章编号： | 1002-6622（2006）06-0042-04 |
| 收稿时间： | 2006-08-04 |
| 修稿时间： | 2006-08-042006-09-07 |
Study on Wind Breaking and Sand Blocking Effects of Farmland Shelterbelts in Ulan Buh Desert Oasis |
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| YANG Tingting,CHAI Huiqiang,YAO Guozheng,DING Guodong.Study on Wind Breaking and Sand Blocking Effects of Farmland Shelterbelts in Ulan Buh Desert Oasis[J].Forest Resources Management,2006(6):42-45,83. | |
| Authors: | YANG Tingting CHAI Huiqiang YAO Guozheng DING Guodong |
| Institution: | 1. Grasdand Research Institute of Chinese Academy of Agricultural Sciences, Hohlot 010010, China ; 2. The Bureau of Land Resources, Baotou New Hi-tech Zone of Rare Earth, Baotou 014010, Otina ; 3, Inner Mongolia Institute of Land Resources Information, 010020,Inner Mongolia, China; 4. College of Water and Soil Conservation,Beijing Forestry University,Beijing 100083,China |
| Abstract: | Wind velocity in different farmland shelterbelts in Ulan Buh Desert was observed.The results showed that wind breaking effect varies with forestbelt structure,height and porosity.Wind breaking effect of sparse structure shelterbelt is the best and porous structure takes second place,while the ventilation structure is the worst.On the basis of the same structure,the effect of reducing wind velocity becomes more obvious with the increasing of the height of shelterbelt.Moreover,shelterbelt can reduce the sand-transporting quantity,and the fall rate after the forest is more than the one before the forest. |
| Keywords: | Oasis in Ulan Buh Desert farmland shelterbelt wind breaking and sand blocking effect |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |