| 晋西不同林地状况对糙率系数n值影响的研究 |
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| 引用本文： | 张洪江,北原曜,远藤泰造,解明曙.晋西不同林地状况对糙率系数n值影响的研究[J].水土保持通报,1995,15(2):10-21. |
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| 作者姓名： | 张洪江 北原曜 远藤泰造 解明曙 |
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| 作者单位： | 北京林业大学;日本森林综合研究所;日本国际协力事业团黄土高原治山训练项目驻中国北京林业大学专家组;北京林业大学 |
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| 摘 要： | 在野外小区径流实验基础上，通过经转换的曼宁公式，对不同坡地地表的糙率系数ｎ值进行了定量研究，结果表明，林地上的糙率系数ｎ值与林地地表残存的枯落物量和生长的草量呈正相关关系，不同土地利用现状的地表糙率系数ｎ值按由低到高的顺序排列，依次为土质路面，农耕地、核桃果园、人工剌槐林地、灌木林和人工油松林地，该还探讨了糙率系数ｎ值与地表水分渗透量的关系。初步结果表明：糙率系数ｎ值较大的地表其水分渗透能力地较
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| 关 键 词： | 林地 径流 糙率系数 渗透 枯落物 土地利用 |
| 收稿时间： | 1994/10/20 0:00:00 |
A Study on Effect of Forest Land Condition Upon Roughness Coefficient in the West of Shanxi Province |
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| Zhang Hongjiang,Kitahara Hikaru,Endo Taizo and Xin Mingshu.A Study on Effect of Forest Land Condition Upon Roughness Coefficient in the West of Shanxi Province[J].Bulletin of Soil and Water Conservation,1995,15(2):10-21. |
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| Authors: | Zhang Hongjiang Kitahara Hikaru Endo Taizo and Xin Mingshu |
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| Institution: | Beijing Forestry University, Beijing 100083;The Short-time Specialist of JICA, Forestry and Forest Products Research Institute of Japan, Ibaragi prof.305;Leader of Specialist Group in BFU of china, JICA, the Soil an;Beijing Forestry University, Beijing 100083 |
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| Abstract: | Based on the field surface shallow flow experiments,the roughness coefficient value (n)on different land have been quantitatively demonstrated by changed Manning Formula in this pa-per.The result shows that the relationship of roughness coefficeint value(n)to litter and grassamount appears to be an orthographic correlation on forest land.And the order of roughness coeffi-cient value (n) from lower to higher on different condition of land use is as follows:soil road,cultur-ing land,walnut plantation,the land of artificial locust forest,the land of shrub forestry and theland of artificial Chinese pine forest.This paper deals also with the relationship between roughnesscoefficent value(n)and the infiltration of water.the preliminary result shows that the higher theroughness coefficient value (n) is,the more the infiltration of water will be. |
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| Keywords: | roughness coefficient infiLtration litter land utilization |
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