摘要
基于贵州31年暴雨雨强统计和贵阳市1年周期内小时降水量统计，对该区域暴雨及特大暴雨特征进行分析。通过设计加工针管式降雨设备对贵阳市降水进行室内模拟。结果表明，当集水管水头高度在30-70mm之间时，雨强为27．6—49．7mm／h的大雨；在80～130mm之间时，雨强为60．4～96．3mm／h的暴雨；在140～180mm之间时，雨强为102．6—125．5mm／h大暴雨。改进后的针管式降雨设备可以满足西南喀斯特地区暴雨雨强的降雨要求。
Heavy rain was analyzed based on rainfall statistics of Guizhou Province for 31 years and the horary rainfall of Guiyang for one year. The rainfalls in Guiyang were simulated in laboratory by designing needle tube rainmakerin. It was turned out that when the water level of collector pipe ranged from 30 to 70 mm, rainfall jutensity was from 27.6 to 49.7 mm/h, and when the water level of collector pipe ranged from 80 to 130 mm, rainfall intensity was from 60.4 to 96.3 ram/h, while the water level of collector pipe ranged from 140 to 180 mm, rainfall intensity was from 102.6 to 125.5 mm/h. The improved needle tube rainmakerin may meet the demand of rainstorm in Karst areas of Southwest China.
出处
《安徽农业科学》
CAS
北大核心
2009年第8期3635-3637,共3页
Journal of Anhui Agricultural Sciences
基金
贵州省省长基金"喀斯特地区代表性土壤侵蚀参数的测定及模拟"(黔省专合字[2007]32号)
"贵阳市表层土壤重金属元素的地球化学特征及污染对策"(黔教科2008013号)
贵州省科技基金"喀斯特山区石漠化临界阈值研究"(黔科合J字[2005]2084号)
贵州师范大学学生科研重点项目"喀斯特地区降雨时间分布及室内模拟--以贵阳市为例"资助。
关键词
喀斯特
降水
模拟
贵阳
针管式降雨设备
Karst
Rainfall
Simulation
Guiyang
Needle tube rainmakerin
