[1]WANG Hui,ZHANG Yu,LIU Guang-sheng,et al.Influence of Terrace Development on Hydrological Runoff Process in the Source Region of Wei River from 1970 to 2006[J].Research of Soil and Water Conservation,2009,16(02):220-226.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
16
Number of periods:
2009 02
Page number:
220-226
Column:
Public date:
2009-04-20
- Title:
-
Influence of Terrace Development on Hydrological Runoff Process in the Source Region of Wei River from 1970 to 2006
- Author(s):
-
WANG Hui, ZHANG Yu, LIU Guang-sheng, TANG Yin-feng, ZHAO Li-qiang
-
Resource and Environment Institute, Lanzhou University, Lanzhou, 730000, China
-
- Keywords:
-
Wei river; land use; terrace; hydrological process
- CLC:
-
P333;S157.31
- DOI:
-
-
- Abstract:
-
Large-scale of terrace development had been carried out continuously since 1970s in the source region of Wei river.Three factors of land cover change,precipitation condition and terrace area change had been analyzed on three different stages,which were annually stage and three wet months stage from July to September,three dry months stage from December to February,to obtain the basis reason of runoff efficiency sustainably decrease.Based on the analysis of changing trends and statistical regression relationships between basin precipitation,runoff and terrace area,statistical simulation model of runoff process which was on the basis of precipitation and terrace area had been established.The results show that the main cause of runoff efficiency decrease was large-scale terrace development in the region of Wei River.Meanwhile,there was an intense influence on dry stage runoff and a relative weak influence on wet stage runoff with the increase of terrace area.In summary,this paper may have great guiding significance on reasonably land planning,developing and using,basin water resources sustainable utilization and ecological environment balance.