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Oecologia

, Volume 54, Issue 3, pp 389–397 | Cite as

A case study of energy, water and soil flow chains in an arid ecosystem

  • A. Yair
  • M. Shachak
Article

Abstract

Little attention has been directed to the study of soil flow and the complex relationships among energy water and soil flow in terrestrial ecosystems. Soil plays an important role in arid ecosystems. After water soil is the second key factor in the development of an arid ecosystem since soil is the only part of the system capable of absorbing and storing water and nutrients during the hot and long summer period. The present work presents a case study of an ecological soil flow chain in an arid environment and analyses the relationship between this chain and the energy and water flow chains. The study was conducted at the Sde Boqer experiment site located in the northern Negev of Israel where average annual rainfall is 92 mn. Data collected during five consecutive years show that the soil movement process within the ecosystem studied cannot be considered as a purely physical phenomenon, but rather as a part of a complex system in which the burrowing and digging activity of Isopods and Porcupines plays an important role by providing disaggregated soil particles easy to remove by shallow flows. Although controlled by the spatial distribution of soil moisture the biological activity acts as a regulator of soil depth and thus of soil moisture. If this regulating role is deleted from the system a new ecosystem, more arid, can be expected to develop. It is therefore concluded that the study of state and flow variables of an arid ecosystem should consider altogether the water, soil, energy and mineral chains.

Keywords

Soil Moisture Water Soil Soil Depth Terrestrial Ecosystem Experiment Site 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Abaturov BD (1972) The role of burrowing animals in the transport of mineral substances in the soil. Pedobiologia 12:261–266Google Scholar
  2. Arkim Y, Braun M (1965) Type sections of upper Cretaceous formations in the northern Negev. Israel Geol Surv Stratigraphic Section No. 2a JerusalemGoogle Scholar
  3. Burton TM, Likens GE (1975) Energy flow and nutrient cycling in salamander populations in the Hubbard Brook Experimental Forest, New Hampshire, Ecology 56(5):1068–1080Google Scholar
  4. Cole DW, Gessel SP, Dice SF (1967) Distribution and cycling of nitrogen, phosphorus, potassium, and calcium in a second-growth douglas fir ecosystem. Symposium on Primary Productivity and Mineral Cycling in Natural Ecosystems, New York City, December 27. University of Maine Press, Orono. 245 ppGoogle Scholar
  5. Dan J, Yaalon DH, Koyumdjiski H, Raz Z (1972) The soil association map of Israel. Israel J Earth Sci 21:29–49Google Scholar
  6. Danin A (1972) Mediterranean elements in rocks of the Negev and Sinai Deserts. Notes Roy Bot Gard Edinburgh 31:29–49Google Scholar
  7. Golley FB (1960) Energy dynamics of a food chain of an old-field community. Ecol Monogr 30:187–206Google Scholar
  8. Gosz JR, Likens GE, Bormann FH (1976) Organic matter and nutrient dynamics of the forest floor in the Hubbard Brook forest. Oecologia (Berl) 22:305–320Google Scholar
  9. Kitchell JR, O'Neill RV, Webb D, Gallepp W, Bartell SM, Koonce JF, Ausmus BV (1979) Consumer regulation of nutrient cycling. Bio-Science 29(1):28–34Google Scholar
  10. Likens GE, Bormann FH (1972) Nutrient cycling in ecosystems. Pages 25–67 In: J Wiens (ed) Ecosystem Structure and Function. Oregon State University Press, CorvallisGoogle Scholar
  11. Lindeman RL (1942) The trophic-dynamic aspect of ecology. Ecology 23:399–418Google Scholar
  12. Lofty JR (1974) Oligochaetes. Pages 467–488. In: Dickinson, Pugh (eds) Biology of Plant Litter Decomposition. Vol 2 Academic Press, LondonGoogle Scholar
  13. Odum HT (1957) Trophic structure and productivity of Silver Springs, Florida. Ecol Monogr 27:55–112Google Scholar
  14. O'Neill RV, Harris WF, Ausmus BS, Reichle DE (1975) A theoretical basis for ecosystem analysis with particular reference to element cycling. In: Howell, Gentry, Smith (eds) Mineral Cycling in Southeastern Ecosystems. U.S. Energy Research and Development AdministrationGoogle Scholar
  15. Palmer RS (1963) The influence of a thin water layer on waterdrop impact forces. IAHS Publ 65:141–148Google Scholar
  16. Rusek J (1975) Die bodenbilende Funktion bon Collenbolen und Acari. Pedobio-LOGIA 15:299–308Google Scholar
  17. Shachak M (1980) Feeding, energy flow, and soil turnover in the desert isopod, Hemilepistus reaumuri. Oecologia (Berl) 24:57–69Google Scholar
  18. Shachak M, Chapman EA, Steinberger Y (1976) Energy allocation and life history strategy of the desert isopod Hemilepistus reaumuri. Oecologia (Berl) 45:404–413Google Scholar
  19. Sharon D (1980) The distribution of hydrologically effective rainfall incident on sloping ground. J Hydrol 46:165–184Google Scholar
  20. Yair A (1974) Sources of runoff and sediment supplied by the slopes of a first order drainage basin in an arid environment. Report of Comm on Present Day Geomorphological Process, Gottingen:403–417Google Scholar
  21. Yair A (1978) Interdisciplinary research on runoff and erosion processes in an arid area. Sede Boker experimental site, northern Negev. Israel. In: Davidson-Arnott R, Nickling W (eds) Research in Fluvial Geomorphology, Proc 5th Guelph Symposium: 109–131Google Scholar
  22. Yair A (1981) The Sede Boqer experiment sit.. In: Dan J, Gerson R, Koyumdjisky H, Yaalon DH (eds). Aridic soils of Israel. The Volcani Center, Spec Publ no 190:239–254Google Scholar
  23. Yair A, Danin A (1980) Spatial variation in vegetation species are related to the soil moisture regime over an arid limestone hillside, northern Negev, Israel. Oecologia (Berl) 47:83–88Google Scholar
  24. Yair A, Lavee H (1976) Runoff generative process and runoff yield from arid talus mantled slopes. Earth Surf Proc 1(3):235–247Google Scholar
  25. Yair A, Sharon D, Lavee H (1978) An instrumented watershed for the study of partial area contribution of runoff in the arid zone. Zeitsch fur Geom Supp Bd 29:71–82Google Scholar
  26. Yair A, Sharon D, Lavee H (1980) Trends in runoff and erosion processes over an arid limestone hillside, northern Negev, Israel. Hydrol Sci Bull 25(3):243–255Google Scholar

Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • A. Yair
    • 1
    • 2
  • M. Shachak
    • 3
  1. 1.Institue of Earth SciencesThe Hebrew University of JerusalemIsrael
  2. 2.Watershed Ecology Unit. Blaustein Institute for Desert ResearchBen Gurion UniversityIsrael
  3. 3.Watershed Ecology Unit, Blaustein Institute for Desert Research and Biology DepartmentBen Gurion UniversityIsrael

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