Plant and Soil

, Volume 191, Issue 2, pp 147–156

Does grazing mediate soil carbon and nitrogen accumulation beneath C4, perennial grasses along an environmental gradient?

  • J.D. Derner
  • D.D. Briske
  • T.W. Boutton
Article

Abstract

An experiment was conducted to evaluate the influence of long-term (>25 yrs) grazing on soil organic carbon (SOC) and total soil nitrogen (N) accumulation beneath individual plants of three perennial grasses along an environmental gradient in the North American Great Plains. The zone of maximum SOC and N accumulation was restricted vertically to the upper soil depth (0-5 cm) and horizontally within the basal area occupied by individual caespitose grasses, which contributed to fine-scale patterning of soil heterogeneity. Long-term grazing mediated SOC and N accumulation in the tall-, mid- and shortgrass communities, but the responses were community specific. SOC and N were lower beneath Schizachyrium scoparium plants in long-term grazed sites of the tall- and midgrass communities, but higher beneath Bouteloua gracilis plants in the long-term grazed site of the shortgrass community. SOC, but not N, was greater in soils beneath compared to between S. scoparium plants in an abandoned field seeded in 1941, indicating that this caespitose grass accumulated SOC more rapidly than N. SOC and N were greater in the 0-5 cm soil depth beneath a caespitose grass (S. scoparium) compared to a rhizomatous grass (Panicum virgatum) in the tallgrass community, with no significant accumulation of either SOC or N beneath P. virgatum plants. Grazing appears to indirectly mediate nutrient accumulation beneath caespitose grasses along the environmental gradient by modifying the size class distribution of plants. Populations with a greater proportion of large plants have a greater potential for biomass incorporation into soils and may more effectively capture redistributed organic matter from between plant locations. Contrasting plant responses to grazing at various locations along the environmental gradient conform to the predictions of the generalized grazing model, as the selection pressures of grazing and aridity may have also influenced the ability of caespitose grasses to accumulate nutrients in soils beneath them by mediating grazing resistance, competitive ability and population structure.

environmental gradient grazing nutrient accumulation plant-animal interactions soil heterogeneity 

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References

  1. Aguilera M O and Lauenroth W K 1995 Influence of gap disturbances and type of microsites on seedling establishment in Bouteloua gracilis. J. Ecol. 83, 87–97.Google Scholar
  2. Bark D 1987 Konza Prairie Research Natural Area, Kansas. In the Climates of the Long-Term Ecological Research Sites. Ed. D Greenland. pp 45–50. Institute of Arctic and Alpine Research, Occasional Paper Number 44. University of Colorado, Boulder, CO.Google Scholar
  3. Belsky A J, Amundson R G, Duxbury J M, Riha S J, Ali A R and Mwonga SM 1989 The effects of trees on their physical, chemical and biological environments in a semi-arid savanna in Kenya. J. Appl. Ecol. 26, 1005–1024.Google Scholar
  4. Briske D D 1991 Developmental morphology and physiology of grasses. In Grazing Management: an ecological Perspective. Eds. R K Heitschmidt and J W Stuth. pp 11–26. Timber Press, Portland, Oregon.Google Scholar
  5. Briske D D and Derner J D 1997 Clonal biology of caespitose grasses. In Population Ecology of Grasses. Ed. G Cheplick. Cambridge University Press, Cambridge (In press).Google Scholar
  6. Briske D D and Richards J H 1995 Plant responses to defoliation: A physiological, morphological, and demographic evaluation. In Wildland Plants: Physiological Ecology and Developmental Morphology. Eds. D J Bedunah and R E Sosebee. pp 635–710. Society for Range Management, Denver, CO.Google Scholar
  7. Burke I C, Lauenroth W K and Coffin D P 1995 Soil organic matter recovery in semiarid grasslands: Implications for the conservation reserve program. Ecol. Appl. 5, 793–801.Google Scholar
  8. Burke I C, Reiners W A, Sturges DL and Matson PA 1987 Herbicide treatment effects on properties of mountain big sagebrush soils after fourteen years. Soil Sci. Am. J. 51, 1337–1343.Google Scholar
  9. Butler J L and Briske D D 1988 Population structure and tiller demography of the bunchgrass Schizachyrium scoparium in response to herbivory. Oikos 51, 306–312.Google Scholar
  10. Coppinger K D, Reiners W A, Burke I C and Olson R K 1991 Net erosion on a sagebrush steppe landscape as determined by cesium-137 distribution. Soil Sci. Am. J. 55, 254–258.Google Scholar
  11. Ganskopp D, Angell R and Rose J 1992 Response of cattle to cured reproductive stems in a caespitose grass. J. Range Manage. 45, 401–404.Google Scholar
  12. Gatsuk L E, Smimova O V, Vorontzova L I, Zaugolnova L B and Zhukova L A 1980 Age states of plants of various growth forms: A review. J. Ecol. 68, 675–696.Google Scholar
  13. Halvorson J J, Bolton H, Smith J L and Rossi R E 1994 Geostatistical analysis of resource islands under Artemisia tridentata in the shrub-steppe. Great Basin Nat. 54, 313–328.Google Scholar
  14. Halvorson J J, Smith J L, Bolton H and Rossi R E 1995 Evaluating shrub-associated spatial patterns of soil properties in a shrub-steppe ecosystem using multiple-variable geostatistics. Soil Sci. Am. J. 59, 1476–1487.Google Scholar
  15. Hartnett DC 1989 Density and growth stage-dependent responses to defoliation in two rhizomatous grasses. Oecologia 80, 414–420.Google Scholar
  16. Hartnett DC 1993 Regulation of clonal growth and dynamics of Panicum virgatum (Poaceae) in tallgrass prairie: Effects of neighbor removal and nutrient addition. Am. J. Bot. 80, 1114–1120.Google Scholar
  17. Hook P B, Burke I C and Lauenroth WK 1991 Heterogeneity of soil and plant N and C associated with individual plants and openings in North American shortgrass steppe. Plant Soil 138, 247–256.Google Scholar
  18. Hook P B, Lauenroth W K and Burke I C 1994 Spatial patterns of roots in a semiarid grassland: abundance of canopy openings and regeneration gaps. J. Ecol. 82, 485–494.Google Scholar
  19. Hulett G K and Tomanek GW 1969 Remnant prairies on the shallow limy range site in north central Kansas. J. Range Manage. 22, 19– 23.Google Scholar
  20. Ihori T, Burke I C and Hook P B 1995 Nitrogen mineralization in native cultivated and abandoned fields in shortgrass steppe. Plant Soil 171, 203–208.Google Scholar
  21. Jackson R B and Caldwell M M 1989 The timing and degree of root proliferation in fertile-soil microsites for three cold-desert perennials. Oecologia 81, 149–153.Google Scholar
  22. Jackson R B and Caldwell M M 1993a Geostatistical patterns of soil heterogeneity around individual perennial plants. J. Ecol. 81, 683–692.Google Scholar
  23. Jackson R B and Caldwell M M 1993b The scale of nutrient heterogeneity around individual plants and its quantification with geostatistics. Ecology 74, 612–614.Google Scholar
  24. Kelly R H, Burke I C and Lauenroth W K 1996 Soil organic matter and nutrient availability responses to reduced plant inputs in shortgrass steppe. Ecology 77, 2516–2527.Google Scholar
  25. Kieft T L 1994 Grazing and plant-canopy effects on semiarid soil microbial biomass and respiration. Biol. Fert. Soils. 18, 155–162.Google Scholar
  26. Lauenroth W K and Sala O E 1992 Long term forage production of North American shortgrass steppe. Ecol. Appl. 2, 397–403.Google Scholar
  27. Manley J T, Schuman GE, Reeder J D and Hart R H 1995 Rangeland soil carbon and nitrogen responses to grazing. J. Soil Water Cons. 50, 294–298.Google Scholar
  28. Milchunas D G and Lauenroth W K 1993 Quantitative effects of grazing on vegetation and soils over a global range of environments. Ecol. Monogr. 63, 327–366.Google Scholar
  29. Milchunas D G, Sala O E and Lauenroth W K 1988 A generalized model of the effects of grazing by large herbivores on grassland community structure. Am. Nat. 132, 87–106.Google Scholar
  30. Milchunas D G, Lauenroth W K, Chapman P L and Kazempour M K 1989 Effects of grazing, topography, and precipitation on the structure of a semiarid grassland. Vegetatio 80, 11–23.Google Scholar
  31. Murphy J S and Briske D D 1992 Regulation of tillering by apical dominance: Chronology, interpretive value, and current perspectives. J. Range Manage. 45, 419–429.Google Scholar
  32. Niewenhuize J, Maas YEM and Middleburg J J 1994 Rapid analysis of organic carbon and nitrogen in particulate materials. Marine Chem. 45, 217–224.Google Scholar
  33. Pfeiffer K E and Hartnett D C 1995 Bison selectivity and grazing response of little bluestem in tallgrass prairie. J. Range Manage. 48, 26–31.Google Scholar
  34. Rice B L, Westoby M, Griffin G F and Friedel M H 1994 Effects of supplementary soil nutrients on hummock grasses. Aust. J. Bot. 42, 687–703.Google Scholar
  35. Riegel D A, Albertson F W, Tomanek G W and Kinsinger F E 1963 Effects of grazing and protection on a twenty-year-old seeding. J. Range Manage. 22, 60–63.Google Scholar
  36. Ruess RW and McNaughton S J 1987 Grazing and the dynamics of nutrient and energy regulated microbial processes in the Serengeti grasslands. Oikos 49, 101–110.Google Scholar
  37. SAS Institute Inc 1988 SAS/STAT User's Guide, Release 6.03 Edition. SAS, Cary, NC.Google Scholar
  38. Schlesinger W H, Raikes J A, Hartley A E and Cross A F 1996 On the spatial pattern of soil nutrients in desert ecosystems. Ecology 77, 364–374.Google Scholar
  39. Schlesinger W H, Reynolds J F, Cunningham G L, Huenneke L F, Jarrell W M, Virginia R A and Whitford W G 1990 Biological feedbacks in global desertification. Science 247, 1043–1048.Google Scholar
  40. Schimel D S, Braswell B H, Holland E A, McKeown R, Ojima D S, Painter T H, Parton W J and Townsend A R 1994 Climatic, edaphic, and biotic controls over storage and tumover of carbon in soils. Global Biogeochem. Cycles 8, 279–293.Google Scholar
  41. Sims P L, Singh J S and Lauenroth W K 1978 The structure and function of ten western North American grasslands. I. Abiotic and vegetation characteristics. J. Ecol. 66, 251–281.Google Scholar
  42. Steel R G D and Torrie J H 1980 Principles and procedures of statistics: A biometrical approach. McGraw-Hill Book Company, New York.Google Scholar
  43. Truscott D R and Currie P O 1989 Cattle preferences for a hybrid grass: Chemical and morphological relationships. J. Range Manage. 42, 22–27.Google Scholar
  44. Vasquez de Aldana B R, Geerts R H E M and Berendse F 1996 Nitrogen losses from perennial grass species. Oecologia 106, 137–143.Google Scholar
  45. Vincent K R and Chadwick O A 1994 Synthesizing bulk density for soils with abundant rock fragments. Soil Sci. Soc. Am. J. 53, 455–464.Google Scholar
  46. Vinton M A 1994 The influence of individual plants on soil nutrient dynamics in the central grassland region of the United States. Dissertation, Colorado State University, Fort Collins, CO.Google Scholar
  47. Vinton MA and Burke IC 1995 Interactions between individual plant species and soil nutrient status in shortgrass steppe. Ecology 76, 1116–1133.Google Scholar
  48. Vokhiwa ZM 1994 Carbon and nitrogen dynamics in grazed and protected semiarid shortgrass steppe. Dissertation, Colorado State University, Fort Collins, CO.Google Scholar
  49. Zinke P J 1962 The pattern of influence of individual forest trees on soil properties. Ecology 43, 130–133.Google Scholar

Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • J.D. Derner
    • 1
  • D.D. Briske
    • 1
  • T.W. Boutton
    • 1
  1. 1.Department of Rangeland Ecology and ManagementTexas A and M UniversityCollege StationUSA

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