民勤县红崖山风蚀监测站监测成果分析

民勤县红崖山风蚀监测站是甘肃省两个风蚀监测点之一，为准确掌握区域水土流失强度、发生发展规律、动态变化趋势等情况，本文以现有监测技术为基础，利用全自动气象观测仪、测钎、布袋式集沙仪、降尘缸等设备，通过地面观测法、测钎法、降尘缸法等，对监测站的降水量、蒸发量、风速、风向、土壤含水率、风蚀厚度、降尘量、输沙率等要素数据进行定期监测，并分析得出：每年第二季度风蚀厚度最大，这与大风天气发生频次、风速大小有直接关系。而且采取麦草方格网沙障措施可有效降低风蚀厚度，水土流失治理效果明显。通过对该监测站风蚀情况监测，为今后民勤县开展水土流失防治工作提供重要的基础支撑。

Hongyashan wind erosion monitoring and analysis in Minqin County

The Hongyashan Wind Erosion Monitoring Station in Minqin County is one of the two wind erosion monitoring sites in Gansu Province. In order to accurately grasp the regional soil erosion intensity, occurrence and development law, dynamic change trend and other data, this paper is based on the existing monitoring technology, using automatic meteorological observation instrument, measuring drill, cloth bag type sand collector, dust tank and other equipment, and Regular monitoring of the precipitation, evaporation, wind speed, wind direction, soil moisture content, wind erosion thickness, dust fall, and sand transport rate data at the monitoring station is carried out by using ground observation method, drilling method, dust tank and other methods. The analysis shows that the thickness of wind erosion is the largest in the second quarter of each year, which is directly related to the frequency of windy weather and the magnitude of wind speed. In addition, the sand barrier measures of wheat grass grid can effectively reduce the thickness of wind erosion, and the effect of soil erosion control is obvious. Through the monitoring of wind erosion at this monitoring station, it will provide important basic support for the future prevention and control of soil erosion in Minqin County.