新疆托里县老风口风雪灾害及其生物治理

SNOWSTORM AND ITS BIOLOGICAL CONTROL IN THE LAOFENGKOU WIND GAP, XINJIANG

本文根据老风口林场和公路雪害防治实验站资料,综合分析风区的自然地理条件,风区植树造林防治风雪灾害的成功经验和失败教训,并总结出一套行之有效的生物治理措施,即营造多带小网格蜂窝结构的防风阻雪林网。其效果明显,可促进生态环境的良性循环,改善了公路冬季交通条件。

Laofengkou is one of the well—known wind gaps in Xinjiang, which lies to the north of Jiaerbasi, Toli County, Tacheng District, borders Emin County on the south, and covers a total length of about 25 km. The average windstorms occur 58 times annually and the maximum can be as many as 88. Strong wine and drifting snow often block the transportation and result in serious disasters in the area.According to the observed data from Laofengkou Snow—hazard Control Station and Laofengkou Forestry Centre, an effective biological measure for controlling drifting snow, i. e., planting honeycomb—like wind—break forest belts, is presented based on the analyses of the physiographical conditions in the area of Laofengkou wind gap and both of the successful practices and failed lessons for controlling drifting snow hazards from 1959 to 1984.