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RESEARCH ARTICLE

Temporal variability in rill erodibility for two types of grasslands

Guang-hui Zhang A B E , Ke-ming Tang B C , Zhen-ling Sun B and X. C. Zhang D
+ Author Affiliations
- Author Affiliations

A State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling, Shaanxi 712100, China.

B School of Geography, Beijing Normal University, Beijing 100875, China.

C College of Information and Engineering Technology, Sichuan Agricultural University, Yaan, Sichuang 625014, China.

D USDA-ARS Grazinglands Research Laboratory, EL Reno, OK 73036, USA.

E Corresponding author. Email: ghzhang@bnu.edu.cn

Soil Research 52(8) 781-788 https://doi.org/10.1071/SR14076
Submitted: 3 April 2014  Accepted: 7 September 2014   Published: 20 November 2014

Abstract

The temporal variability in rill erodibility (Kr) and its influencing factors are not fully quantified in grasslands. This study was conducted to detect temporal variation and quantify the potential factors causing changes in rill erodibility by using natural, undisturbed soil samples collected from two grasslands and one bare soil near Beijing, China. Sampling was at ~20-day intervals from April to October 2011. Soil detachment capacity by concentrated flow was measured in a hydraulic flume with the fixed bed under six different flow shear stresses to determine rill erodibility. Root mass density was measured to analyse potential effects on temporal variability in rill erodibility. Mean rill erodibility of bare soil was 13.2 and 19.6 times greater than under switchgrass (Panicum virgatum) and smooth bromegrass (Bromus inermis). The temporal variability in rill erodibility under grasslands differed significantly from that of bare soil. Distinctive temporal variation patterns were found throughout the growing season. Rill erodibility declined as root density increased, and the rill erodibility of grassland could be well estimated from the measured erodibility of bare soil and root density (R2 ≥ 0.92). The results of this study aid understanding of soil erosion mechanisms and development of process-based erosion models to simulate the seasonal variation in soil detachment by concentrated flow for grassland.

Additional keywords: concentrated flow, grassland, rill erodibility, soil erosion resistance, temporal variation.


References

Bennett SJ, Casali J, Robinson KM, Kadavy KC (2000) Characteristics of actively eroding ephemeral gullies in an experimental channel. Transactions of the American Society of Agricultural Engineers 43, 641–649.
Characteristics of actively eroding ephemeral gullies in an experimental channel.Crossref | GoogleScholarGoogle Scholar |

Bolinder MA, Angers DA, Belanger G, Michaud R, Laverdiere MR (2002) Root biomass and shoot to root ratios of perennial forage crops in eastern Canada. Canadian Journal of Plant Science 82, 731–737.
Root biomass and shoot to root ratios of perennial forage crops in eastern Canada.Crossref | GoogleScholarGoogle Scholar |

Bryan RB (2000) Soil erodibility and processes of water erosion on hillslope. Geomorphology 32, 385–415.
Soil erodibility and processes of water erosion on hillslope.Crossref | GoogleScholarGoogle Scholar |

Burylo M, Rey F, Mathys N, Dutoit T (2012) Plant root traits affecting the resistance of soils to concentrated flow erosion. Earth Surface Processes and Landforms 37, 1463–1470.
Plant root traits affecting the resistance of soils to concentrated flow erosion.Crossref | GoogleScholarGoogle Scholar |

De Baets SD, Poesen J (2010) Empirical models for predicting the erosion-reducing effects of roots during concentrated flow erosion. Geomorphology 118, 425–432.
Empirical models for predicting the erosion-reducing effects of roots during concentrated flow erosion.Crossref | GoogleScholarGoogle Scholar |

De Baets SD, Poesen J, Gyssels G, Knapen A (2006) Effects of grass roots on the erodibility of topsoils during concentrated flow. Geomorphology 76, 54–67.
Effects of grass roots on the erodibility of topsoils during concentrated flow.Crossref | GoogleScholarGoogle Scholar |

De Baets SD, Poesen J, Knapen A, Galindo P (2007) Impact of root architecture on the erosion-reducing potential of roots during concentrated flow. Earth Surface Processes and Landforms 32, 1323–1345.
Impact of root architecture on the erosion-reducing potential of roots during concentrated flow.Crossref | GoogleScholarGoogle Scholar |

Flanagan DC, Gilley JE, Franti TG (2007) Water Erosion Prediction Project (WEPP): Development history, model capabilities, and future enhancements. Transactions of the ASABE 50, 1603–1612.
Water Erosion Prediction Project (WEPP): Development history, model capabilities, and future enhancements.Crossref | GoogleScholarGoogle Scholar |

Fu BJ, Wang J, Chen LD, Qiu Y (2003) The effects of land use on soil moisture variation in the Danangou catchment of the Loess Plateau, China. Catena 54, 197–213.
The effects of land use on soil moisture variation in the Danangou catchment of the Loess Plateau, China.Crossref | GoogleScholarGoogle Scholar |

Garwood EA (1967) Seasonal variation in appearance and growth of grass roots. Grass and Forage Science 22, 121–130.
Seasonal variation in appearance and growth of grass roots.Crossref | GoogleScholarGoogle Scholar |

Govers G, Loch JR (1993) Effects of initial water content and soil mechanical strength on the runoff erosion resistance of clay soils. Australian Journal of Soil Research 31, 549–566.
Effects of initial water content and soil mechanical strength on the runoff erosion resistance of clay soils.Crossref | GoogleScholarGoogle Scholar |

Gyssels G, Poesen J, Liu G, Van Dessel W, Knapen A, De Baets SD (2006) Effects of cereal roots on detachment rates of single and double drilled topsoils during concentrated flow. European Journal of Soil Science 57, 381–391.
Effects of cereal roots on detachment rates of single and double drilled topsoils during concentrated flow.Crossref | GoogleScholarGoogle Scholar |

Hanson GJ, Cook KR (1999) Procedure to estimate soil erodibility for water management purposes. In ‘ASAE/CSAE International Meeting’. Toronto, ON, Canada. pp. 1–6. (American Society of Agricultural Engineers/Canadian Society of Agricultural Engineering)

Jiao F, Wen ZM, An SS (2011) Changes in soil properties across a chronosequence of vegetation restoration on the Loess Plateau of China. Catena 86, 110–116.
Changes in soil properties across a chronosequence of vegetation restoration on the Loess Plateau of China.Crossref | GoogleScholarGoogle Scholar |

Jimenez Aguilar AJ, Huber-Sannwald E, Belnap J, Smart DR, Moreno JA (2009) Biological soil crusts exhibit a dynamic response to seasonal rain and release from grazing with implications for soil stability. Journal of Arid Environments 73, 1158–1169.
Biological soil crusts exhibit a dynamic response to seasonal rain and release from grazing with implications for soil stability.Crossref | GoogleScholarGoogle Scholar |

Kemper WD, Trout TJ, Brown MJ, Rosenau RC (1985) Furrow erosion and water and soil management. Transactions of the American Society of Agricultural Engineers 28, 1564–1572.
Furrow erosion and water and soil management.Crossref | GoogleScholarGoogle Scholar |

King KW, Flanagan DC, Norton LD, Laflen JM (1995) Rill erodibility parameters influenced by long-term management practices. Transactions of the American Society of Agricultural Engineers 38, 159–164.
Rill erodibility parameters influenced by long-term management practices.Crossref | GoogleScholarGoogle Scholar |

Knapen A, Poesen J, De Baets SD (2007a) Seasonal variation in soil erosion resistance during concentrated flow for a loess-derived soil under two contrasting tillage practices. Soil & Tillage Research 94, 425–440.
Seasonal variation in soil erosion resistance during concentrated flow for a loess-derived soil under two contrasting tillage practices.Crossref | GoogleScholarGoogle Scholar |

Knapen A, Poesen J, Govers G, Gyssels G, Nachtergaele J (2007b) Resistance of soils to concentrated flow erosion: A review. Earth-Science Reviews 80, 75–109.
Resistance of soils to concentrated flow erosion: A review.Crossref | GoogleScholarGoogle Scholar |

Lei TW, Zhang QW, Zhao J, Xia WS, Pan YH (2002) Soil detachment rates for sediment loaded flow in rills. Transactions of the American Society of Agricultural Engineers 45, 1897–1903.

Lei TW, Zhang QW, Zhao J, Nearing MA (2006) Tracing sediment dynamics and sources in eroding rills with rate earth elements. European Journal of Soil Science 57, 287–294.
Tracing sediment dynamics and sources in eroding rills with rate earth elements.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28Xntlansbo%3D&md5=f3eb041a8230606d2aa8e4f971cbc49dCAS |

Li Y, Xu XQ, Zhu XM (1992) Preliminary study on mechanism of plant roots to increase the soil anti-scouribility on the Loess Plateau. Science in China 35, 1085–1092.

Makkonen K, Helmisaari HS (1998) Seasonal and yearly variations of fine-root biomass and necromass in a Scots pine (Pinus sylvestrics L.) stand. Forest Ecology and Management 102, 283–290.
Seasonal and yearly variations of fine-root biomass and necromass in a Scots pine (Pinus sylvestrics L.) stand.Crossref | GoogleScholarGoogle Scholar |

Mamo M, Bubenzer G (2001) Detachment rate, soil erodibility and soil strength as influenced by living plant roots part II: field study. Transactions of the American Society of Agricultural Engineers 44, 1175–1181.

Nachtergaele J, Poesen J (2002) Spatial and temporal variations in resistance of loess-derived soils to ephemeral gully erosion. European Journal of Soil Science 53, 449–463.
Spatial and temporal variations in resistance of loess-derived soils to ephemeral gully erosion.Crossref | GoogleScholarGoogle Scholar |

Nandintsetseg B, Shinoda M (2011) Seasonal change of soil moisture in Mongolia: its climatology and modeling. International Journal of Climatology 31, 1143–1152.
Seasonal change of soil moisture in Mongolia: its climatology and modeling.Crossref | GoogleScholarGoogle Scholar |

Nearing MA, Foster GR, Lane LJ, Finkner SC (1989) A process-based soil erosion model for USDA-Water Erosion Prediction Project technology. Transactions of the American Society of Agricultural Engineers 32, 1587–1593.
A process-based soil erosion model for USDA-Water Erosion Prediction Project technology.Crossref | GoogleScholarGoogle Scholar |

Neave M, Rayburg S (2007) A field investigation into the effects of progressive rainfall-induced soil seal and crust development on runoff and erosion rates: The impact of surface cover. Geomorphology 87, 378–390.
A field investigation into the effects of progressive rainfall-induced soil seal and crust development on runoff and erosion rates: The impact of surface cover.Crossref | GoogleScholarGoogle Scholar |

Norton LD, Brown LC (1992) Time-effect on water erosion for ridge tillage. Transactions of the American Society of Agricultural Engineers 35, 473–478.
Time-effect on water erosion for ridge tillage.Crossref | GoogleScholarGoogle Scholar |

Poesen J, De Luna E, Franca A, Nachtergaele J, Govers G (1999) Concentrated flow erosion rates as affected by rock fragment cover and initial soil moisture content. Catena 36, 315–329.
Concentrated flow erosion rates as affected by rock fragment cover and initial soil moisture content.Crossref | GoogleScholarGoogle Scholar |

Rapp I (1998) Effects of soil properties and experimental conditions on the rill erodibilities of selected soils. PhD Thesis. Faculty of Biological and Agricultural Sciences, University of Pretoria, Pretoria, South Africa.

Soil Survey Staff (2010) ‘Keys to Soil Taxonomy.’ 11th edn (USDA-Natural Resources Conservation Service: Washington, DC)

Wang B, Zhang GH, Shi YY, Zhang XC, Ren ZP, Zhu LJ (2013) Effect of natural restoration time of abandoned farmland on soil detachment by overland flow in the Loess Plateau of China. Earth Surface Processes and Landforms 38, 1725–1734.
Effect of natural restoration time of abandoned farmland on soil detachment by overland flow in the Loess Plateau of China.Crossref | GoogleScholarGoogle Scholar |

Wang B, Zhang GH, Shi YY, Zhang XC (2014a) Soil detachment by overland flow under different vegetation restoration models in the Loess Plateau of China. Catena 116, 51–59.
Soil detachment by overland flow under different vegetation restoration models in the Loess Plateau of China.Crossref | GoogleScholarGoogle Scholar |

Wang B, Zhang GH, Zhang XC, Li ZW, Su ZL, Shi YY, Yi T (2014b) Effects of near soil surface characteristics on soil detachment by overland flow in a natural succession grassland. Soil Science Society of America Journal 78, 589–597.
Effects of near soil surface characteristics on soil detachment by overland flow in a natural succession grassland.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC2cXovVOrtrw%3D&md5=5d6a65033558c77977e76bea8cd23f33CAS |

West LT, Miller WP, Bruce RR, Langdale GW, Laflen JM, Thomas AW (1992) Cropping system and consolidation effects on rill erosion in the Georgia Piedmont. Soil Science Society of America Journal 56, 1238–1243.
Cropping system and consolidation effects on rill erosion in the Georgia Piedmont.Crossref | GoogleScholarGoogle Scholar |

Zhang GH, Liu BY, Liu GB, He XW, Nearing MA (2003) Detachment of undisturbed soil by shallow flow. Soil Science Society of America Journal 67, 713–719.
Detachment of undisturbed soil by shallow flow.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXktVGisbk%3D&md5=75f7d44020ce5aa78ff72b9392b9dbf9CAS |

Zhang GH, Liu GB, Tang MK, Zhang XC (2008) Flow detachment of soils under different land uses in the Loess Plateau of China. Transactions of the ASABE 51, 883–890.
Flow detachment of soils under different land uses in the Loess Plateau of China.Crossref | GoogleScholarGoogle Scholar |

Zhang GH, Tang KM, Zhang XC (2009) Temporal variation in soil detachment under different land uses in the Loess Plateau of China. Earth Surface Processes and Landforms 34, 1302–1309.
Temporal variation in soil detachment under different land uses in the Loess Plateau of China.Crossref | GoogleScholarGoogle Scholar |

Zhang GH, Tang KM, Ren ZP, Zhang XC (2013) Impact of grass root mass density on soil detachment capacity by concentrated flow on steep slopes. Transactions of the ASABE 56, 927–934.