Login | Request Account (DAF staff only)

The effect of furrow length on rain and irrigation-induced erosion on a Vertisol in Australia

View Altmetrics

Carroll, C., Halpin, M., Bell, K. and Mollison, J. (1995) The effect of furrow length on rain and irrigation-induced erosion on a Vertisol in Australia. Australian Journal of Soil Research, 33 (5). pp. 833-850. ISSN 0004-9573


Article Link: https://doi.org/10.1071/SR9950833


Runoff and sediment movement were measured from irrigated furrows of different lengths on a Vertisol in central Queensland. Two farm properties (Denaro's and Roberts') were used to compare a short furrow length (SFL) and a long furrow length (LFL). At Denaro's farm, furrows were 241 and 482 m long, and at Roberts' farm they were 151 and 298 m long, with gradients of 1.0% and 1.3% respectively. Runoff and soil loss were measured from six furrows. At Denaro's farm, soil movement off the farm was measured at a taildrain outlet. Sediment concentration from both rainfall and irrigation declined when cultivation had ceased, soil in the furrows had consolidated and when the cotton canopy provided surface cover. Total soil loss from rainfall and irrigation was approximately 4-5 t ha-1. Rainstorms caused most of the seasonal soil loss, typically 3-4 t ha-1. The critical soil erosion period was between pre-plant irrigation and canopy closure. Soil surface cover, peak runoff rate and furrow length explained 97% of variance in soil loss caused by rainfall. Furrow length was not significant in the soil loss model for irrigation (r2 0.59).

Item Type:Article
Keywords:erosion, runoff, furrow length, cotton, tillage
Subjects:Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Agriculture > Agriculture (General) > Soil conservation and protection
Live Archive:16 Apr 2024 23:04
Last Modified:16 Apr 2024 23:04

Repository Staff Only: item control page


Downloads per month over past year

View more statistics