LUO Han,JIA Hui-hui,ZHAO Ting-ning,et al.Study on the Spatial Distribution Pattern of the Rainfall in the Loess Region of West Shaanxi——A Case Study in Tuqiaogou Small Watershed in Fangshan of Shaanxi Province[J].Research of Soil and Water Conservation,2010,17(04):180-182,187.
晋西黄土丘陵沟壑区降雨分布的地形分异规律研究——以山西省方山县土桥沟流域为例
- Title:
- Study on the Spatial Distribution Pattern of the Rainfall in the Loess Region of West Shaanxi——A Case Study in Tuqiaogou Small Watershed in Fangshan of Shaanxi Province
- 分类号:
- P426.615
- 摘要:
- 降雨是陆上水资源的直接来源和水循环的首要环节，尤其是在降雨匮乏的黄土丘陵沟壑地区，通过对降雨空间分布的研究，可以为人工林栽培、植被恢复、土壤侵蚀等研究提供指导。通过对研究地区不同地形位置布设雨量观测设备，进行场降雨观测。针对不同高程、坡向的降雨实测数据对比分析，得出结论：（1）降雨量随高程升高先增加，后减少，最大降雨量出现在高程为1 280m附近；（2）降雨量随坡向变化的分布规律为：背风坡>迎风坡，即阴坡>阳坡，峁顶降雨量适中。
- Abstract:
- The rainfall is the direct source of water resources on land,especially in the rainfall deficient loess area.Through the research for rainfall spatial distribution,we can provide the instruction for the planted forest cultivation,the vegetation restoration,and the research on soil erosion.Through the rainfall scope on different terrain position,we carried on the rainfall observation.In view of different altitude and slope to the rainfall measured data contrastive analysis,the conclusion was drawn in this paper.The rainfall increases at first,then reduces along with the altitude,and the most rainfall occurred nearby the altitude of 1 280m.The patterns of the rainfall distribution along with the slope aspects followed the order of leeward slope>against the wind slope,namely the shady slope>the sunny slope,and the rainfall occurred in the loess hill was moderate.
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备注/Memo
收稿日期:2009-4-9;
基金项目:国家“十一五”科技支撑计划专题“黄土高原丘陵沟壑半干旱区水土保持抗旱造林及径流林业技术试验示范”（2006BAD03A1201）
作者简介:骆汉（1985- ），男，山东淄博人，硕士生，主要研究方向：工程绿化。E-mail：gylxjd@163.com
通讯作者:赵廷宁（1962- ），男，河北阳原人，教授，博士生导师，主要研究方向：工程绿化。E-mail：zhtning@bjfu.edu.cn