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Biogeochemistry

, Volume 85, Issue 3, pp 317–332 | Cite as

Quantitative effects of vegetation cover on wind erosion and soil nutrient loss in a desert grassland of southern New Mexico, USA

  • Junran LiEmail author
  • Gregory S. Okin
  • Lorelei Alvarez
  • Howard Epstein
Original Paper

Abstract

Wind is a key abiotic factor that influences the dynamics of arid and semiarid systems. We investigated two basic relationships on vegetation manipulation (grass cover reduction) plots at the Jornada Experimental Range in southern New Mexico: (1) wind erosion rates (horizontal mass flux and dust emission) versus vegetative cover, and (2) nutrient loss versus vegetative cover. The results indicate that wind erosion rates and nutrient loss by dust emission are strongly affected by plant cover; however, the importance of shrubs and grasses in reducing dust flux may not be equal. The dramatic increase of wind erosion between 75% grass cover reduction and 100% grass cover reduction suggests that sparsely distributed mesquites are relatively ineffective at reducing wind erosion and nutrient loss compared to grasses. Comparisons of nutrients between surface soils and wind blown dust indicate that aeolian transport is a major cause for the loss of soil nutrients in susceptible environments. We found that increased aeolian flux over three windy seasons (March 2004–July 2006) removed up to 25% of total organic carbon (TOC) and total nitrogen (TN) from the top 5 cm of soil, and about 60% of TOC and TN loss occurred in the first windy season (March–July 2004). The balance between net loss of nutrients by aeolian processes and the addition of nutrients by biotic processes changed from negative (net loss) to positive (net accumulation) between 50% grass cover reduction and 25% grass cover reduction. The estimated lifetime of surface soil TOC and TN of about 10 years on the plot with 100% grass cover reduction indicates that impacts of wind erosion on soil resources can occur on very short timescales.

Keywords

Aeolian processes Deserts Soil nitrogen Soil carbon Vegetation cover Wind erosion Windblown sediment 

Notes

Acknowledgments

We thank Jacquie Hui, Mike Abrams, Emilee Carpenter, Melissa Castiano, Fang Liu, Tom Zhao, Lixin Wang, and Chuanhui Gu for their assistance in the field, laboratory analysis and data processing. Headquarters of the JER staff Eddie Garcia, Rob Dunlap and David Thatcher provided invaluable assistance during the field study time. Some of the wind and precipitation data were provided by the Jornada LTER Weather Station. We also appreciate the anonymous reviewers for their comments on this manuscript. This research was funded by the NSF-Ecosystems studies grant # 0316320. It was further supported by the NSF-LTER Grant DEB-0080412.

References

  1. Allred KW (1996) Vegetative changes in New Mexico rangelands. New Mexico J Sci 36:168–231Google Scholar
  2. Breed CS, McCauley JF (1986) Use of dust storm observations on satellite images to identify areas of vulnerable to severe wind erosion. Climate Change 9:243–258CrossRefGoogle Scholar
  3. Buffington LC, Herbel CH (1965) Vegetation changes on a semidesert grassland range from 1858–1964. Ecol Monogr 35:139–164CrossRefGoogle Scholar
  4. Bulloch HE Jr, Neher RE (1977) Soil survey of Dona County area, New Mexico. Soil Conserv. Serv., U. S. Dep. of Agric., Washington, DCGoogle Scholar
  5. Chadwick OA, Derry LA, Vitousek PM, Huebert BJ, Hedin LO (1999) Changing sources of nutrients during four million years of ecosystem development. Nature 397:491–497CrossRefGoogle Scholar
  6. Cihacek LJ, Sweeney MD, Deibert EJ (1993) Characterization of wind erosion sediments in the Red river valley of North Dakota. J Environ Qual 22:305–310CrossRefGoogle Scholar
  7. Coppinger KD, Reiners WA, Burke IC, Olson RK (1991) Net erosion on a sagebrush steppe landscape as determined by cesium-137 distribution. Soil Sci Soc Am J 55:254–258CrossRefGoogle Scholar
  8. Fryberger SG, Dean G (1979) Dune forms and wind regimes. In: Mckee ED (ed) A study of global sand seas. Geological Survey Professional Paper 1052, pp 137–169Google Scholar
  9. Fryrear DW (1986) A field dust sampler. J Soil Water Conserv 41:117–120Google Scholar
  10. Gehrke C, Johanson U, Callaghan TV, Chadwick D, Robinson CH (1995) The impact of enhanced ultraviolet-B radiation on litter quality and decomposition processes in Vaccinium leaves from the subarctic. Oikos 72:213–222CrossRefGoogle Scholar
  11. Gibbens RP, McNeely RP, Havstad KM, Beck RF, Nolen B (2005) Vegetation changes in the Jornada Basin from 1858–1998. J Arid Environ 61:651–668CrossRefGoogle Scholar
  12. Gillette DA, Fryrear DW, Gill TE, Ley T, Cahill TA, Gearhart EA (1997) Relation of vertical flux of particles smaller than 10 μm to aeolian horizontal mass flux at Owens Lake. J Geophys Res 102:26009–26015CrossRefGoogle Scholar
  13. Gillette DA, Herrick JE, Herbert GA (2006) Wind characteristics of mesquite streets in the northern Chihuahuan Desert, New Mexico, USA. Enviro Fluid Mech 6:241–275CrossRefGoogle Scholar
  14. Gillette DA, Passi R (1988) Modeling of dust emission caused by wind erosion. J Geophys Res 93:14223–14242Google Scholar
  15. Gillette DA, Pitchford AM (2004) Sand flux in the northern Chichuhuan desert, New Mexico, USA, and the influence of mesquite-dominated landscapes. J Geophys Res 109:F04003CrossRefGoogle Scholar
  16. Griffin DW, Garrison VH, Herman JR, Shinn EA (2001) African desert dust in the Caribbean atmosphere: microbiology and public health. Aerobiologia 17:203–213CrossRefGoogle Scholar
  17. Helm P, Breed CS (1999) In: Breed CS, Reheis M (eds) Desert winds: monitoring wind-related surface processes in Arizona, New Mexico, and California. United States Government Printing Office, Washington, DC, pp 30–51Google Scholar
  18. Hennessy JT, Kies B, Gibbens RP, Tromble JM (1986) Soil sorting by forty-five years of wind erosion on a southern New Mexico Range. Soil Sci Soc Am J 50:319–394CrossRefGoogle Scholar
  19. Lancaster N, Baas A (1998) Influence of vegetation cover on sand transportation by wind: field studies at Owens Lake, California. Earth Surf Process Landforms 23:69–82CrossRefGoogle Scholar
  20. Larney FJ, Bullock MS, Janzen HH, Ellert BH, Olson ES (1998) Wind erosion effects on nutrient redistribution and soil productivity. J Soil Water Conserv 53(2):133–140Google Scholar
  21. Leys J, McTainsh G (1994) Soil loss and nutrient decline by wind erosion-cause for concern. Aust J Soil Water Conserv 7(3):30–40Google Scholar
  22. Liu M, Westphal DL (2001) A study of the sensitivity of simulated mineral dust production to model resolution. J Geophys Res-Atmos 106:18099–18112CrossRefGoogle Scholar
  23. Marshall JK (1971) Drag measurements in roughness arrays of varying density and distribution. Agric Meteorol 8:269–292CrossRefGoogle Scholar
  24. Noy-Meir I (1985) Desert ecosystem structure and function. In: Evenari M et al (ed) Hot deserts and arid shrublands. Elsevier Science Publisher, Amsterdam, pp 93–103Google Scholar
  25. Okin GS (2004) Stochastic modeling of desert dust emission: bridging the scale gap. Geol Soc Am Abstracts with Programs 36(2):48Google Scholar
  26. Okin GS (2005) Dependence of wind erosion and dust emission on surface heterogeneity: Stochastic modeling. J Geophys Res-Atmos 110:D11280CrossRefGoogle Scholar
  27. Okin GS (2007) Wind erosion in the presence of vegetation. J Geophy Res-Earth Surface (in press)Google Scholar
  28. Okin GS, Gillette DA (2001) Distribution of vegetation in wind-dominated landscapes: implications for wind erosion modeling and landscape processes. J Geophys Res 106:9673–9683CrossRefGoogle Scholar
  29. Okin GS, Mahowald NM, Chadwick OA, Artaxo PE (2004) The impact of desert dust on the biogeochemistry of phosphorus in terrestrial ecosystems. Global Biogeochem Cycles 18(2), 10.1029/2003GB002145Google Scholar
  30. Okin GS, Murray B, Schlesinger WH (2001) Degradation of sandy arid shrubland environments: observations, process modeling, and management implications. J Arid Environ 47(2):123–144CrossRefGoogle Scholar
  31. Pauli F (1964) Soil fertility problem in arid and semi-arid lands. Nature 204:1286–1288CrossRefGoogle Scholar
  32. Peterjohn WT, Schlesinger WH (1990) Nitrogen loss from deserts in the southwestern United States. Biogeochemistry 10:67–79CrossRefGoogle Scholar
  33. Raupach MR, Gillette DA, Leys FJ (1993) The effect of roughness elements on wind erosion threshold. J Geophys Res-Atmos 98:3023–3029Google Scholar
  34. Reheis M (2003) Dust deposition in Nevada, California, and Utah, 1984–2002. Open-File Report 03-138. US Geological Survey, Denver, COGoogle Scholar
  35. Schlesinger WH, Pilmanis AM (1998) Plant–soil interactions in deserts. Biogeochemistry 42:169–187CrossRefGoogle Scholar
  36. Schlesinger WH, Raikes AF, Hartley AE, Cross AF (1996) On the spatial pattern of soil nutrients in desert ecosystems. Ecology 77:364–374CrossRefGoogle Scholar
  37. Schlesinger WH, Reynolds J, Cunningham G, Huenneke L, Jarrell W, Virginia R, Whitford W (1990) Biological feedbacks in global desertification. Science 247:1043–1048CrossRefGoogle Scholar
  38. Schlesinger WH, Ward TJ, Anderson J (2000) Nutrient losses in runoff from grassland and shrubland habitats in southern New Mexico: II. Field plots. Biogeochemistry 49:69–86CrossRefGoogle Scholar
  39. Shao Y, Raupach MR (1992) The overshoot and equilibration of saltation. J Geophys Res 97:20559–20564Google Scholar
  40. Shao Y, Raupach MR, Findlater PA (1993) The effects of saltation bombardment on the entrainment of dust by wind. J Geophys Res 98:12719–12726CrossRefGoogle Scholar
  41. Sokolik IN, Toon OB (1996) Direct radiative forcing by anthropogenic airborne mineral aerosols. Nature 381:681–683CrossRefGoogle Scholar
  42. West NE, Skujins J (1977) The nitrogen cycle in North American cold-winter semi-desert ecosystems. Oecol Plantarum 12:45–53Google Scholar
  43. Wiggs GFS, Livingstone I, Thomas DSG, Bullard JE (1994) Effect of vegetation removal on airflow patterns and dune dynamics in the southwest Kalahari Desert. Land Degrad Rehabil 5:13–24CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Junran Li
    • 1
    Email author
  • Gregory S. Okin
    • 2
  • Lorelei Alvarez
    • 1
  • Howard Epstein
    • 1
  1. 1.Department of Environmental SciencesUniversity of VirginiaCharlottesvilleUSA
  2. 2.Department of GeographyUniversity of CaliforniaLos AngelesUSA

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