摘要
４年防沙实践证明：莫高窟崖顶防沙试验的工程设计构思是正确的，设计依据科学可靠，防护效益显著。对保护石窟和壁画已经起到重要的作用．其具体防护作用是：１）直接控制偏西风向洞窟搬运沙量的９５％左右；２）洞前夜间积沙减少了８０％以上；３）外围栅栏对来自主风向的外侧积沙的侧导率平均为３５％；对内侧积沙的侧导率，在偏东风作用下可达５７．５１％，在偏西风作用下平均为１５．８９％．上述防沙作用均具有明显的季节变化。
Sand control practices of four years prove that the sand control engineering on the cliff top of Mogao Grottoes is designed based on a correct design and reliable scientific evidence. It has obvious effects to sand control, there are 1 ) 95 % of sand-transporting quantities from the west of the grottoes are directly controlled ; 2) 80% of accumulated sands in front of the grottoes at night are reduced;3) the average side-diverting-sand capacity outside the fence is 35% to the accumulated sands from main wind direction; inside the fence the figure is 57. 51 % to the eastly wind, and 15. 89% to the westly. The protective effects change with different seasons.
出处
《中国沙漠》
CSCD
北大核心
1996年第1期13-18,共6页
Journal of Desert Research
基金
联合国援助
