中文摘要：

以典型高寒人工绿洲-香日德绿洲为研究对象，对防护林现状进行实地调查，同时实测绿洲不同部位（外围、边缘和内部）和不同季节的多日大风风速及绿洲外围天然灌木林阻沙效应。在此基础上，对绿洲防护林体系的防风固沙效应进行分析。结果表明：香日德绿洲防护林体系防风效应显著，边缘风速降低约1／3，内部风速降低1／2以上，总体防风度60．44％；外围天然灌木林阻沙效应也十分显著，灌木冠幅和阻沙量之间呈线性相关，在0．01水平上呈极显著相关，相关系数达0．7823；灌木高度在0．01水平上也和阻沙量之间呈线性相关，相关系数为0．6088。

英文摘要：

Abstract Xiangride Oasis as a typical high-cold artificial oasis was selected. By investigating the present status of protection forest, observing strong wind in deferent season in oasis exterior, border and interior, sand-resistance. The results showed that the effects of wind prevention of the oasis protection forest system were marked. In oasis border and interior the wind speed are reduced 1/3 and 1/2 than in oasis exterior and the wind prevention degree was 60.44%. The sand resistance of shmbbory in oasis exterior was also significant. The total width and the amount of sand resistance were linear positively significant （ P 〈 0.01, r = 0.782 3^＊＊ ） ; the shrub height and the amount of sand resistance were linear significant （P 〈 0.01, r = 0.6088^＊ ）.