PROGRESS IN GEOGRAPHY ›› 2006, Vol. 25 ›› Issue (6): 52-61.doi: 10.11820/dlkxjz.2006.06.006

• Original Articles • Previous Articles     Next Articles

A Review of Resear ch on Road Erosion

XU Xianli1,4, ZHANG Keli2, LIU Xianchun3   

  1. 1. State Key Laboratory of Urban and Regional Ecology, Research Center for Eco- environmental Sciences, the Chinese Academy of Sciences, Beijing 100085, China|
    2. School of Geography and Remote Sensing Science, Beijing Normal University, Beijing 100875, China|
    3. The Monitoring Center of Soil and Water Conservation Ministry of Water Resource, Beijing 100053, China|
    4. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
  • Received:2006-03-01 Revised:2006-10-01 Online:2006-11-25 Published:2006-11-25

Abstract:

Road construction would accelerate soil erosion, which in turn would deteriorate natural ecology. To reduce or control road erosion, we should grasp road erosion characteristics and its mechanics, and then find the effective control measures. Landform would be changed to some extent in road construction processes. Different micro- topography would be formed on the original geomorphology, which produces different erosion characteristics. Meanwhile, the erosion mechanics and processes are different among these parts of a road. The existing researches on road erosion have no agreement on the erosion intensity for the respective part of the road. Compared with other land use types, road would significantly change the physical and hydrological properties of soil surface, and furthermore accelerate runoff and soil erosion. Especially for a watershed, the linear feature of a road helps to easily converge and conduct runoff. However, few research on this aspect until present. At present, the statistical model of road erosion prediction is still predominating. Due to the limitation of the statistical model itself, it can 't reflect the erosion mechanics; so physical models should be the emphasis in the further researches. Especially, we should try our best to introduce the existing physical model on farmland. The control measures on road erosion mainly include the engineering ones, the biology ones and their combinations. All of them have different effectiveness in controlling soil loss, dependent on the local natural and economic factors. This paper reviewed the previous researches and pointed out some emphasis on road erosion in further study. It is significant for road erosion control and watershed environment protection.

Key words: road construction, road erosion, road erosion control, road erosion prediction

CLC Number: 

  • S157