Advertisement

The Effects of Fire on Photosynthesis in Chaparral Resprouts

  • W. C. Oechel
  • S. J. Hastings
Part of the Ecological Studies book series (ECOLSTUD, volume 43)

Abstract

The success and rapid growth of vegetation regenerating after fire is probably due to a complex set of factors. In sprouting shrubs it may be due to the utilization of carbohydrate reserves in the roots and lignotubers. It may also be due in part to increased photosynthetic rates, as Radosevich et al. (1977) have reported for resprouting Adenostoma fasciculatum. Christensen and Muller (1975) point out the enhancing effects of improved nutrient status of the chaparral on growth following fire. Photosynthesis and the rate of regrowth could also be increased due to improved water relations of resprouts. A reduction in the leaf area index after top removal would decrease the total transpirational surfaces and presumably decrease water loss. Greater tissue water potentials following fire may result in lowered stomatal resistance to water vapour and carbon dioxide flux. Christensen and Muller (1975) reported increased soil nutrients in chaparral areas after a fire. Higher nutrient levels may result in greater enzyme concentrations, higher respiration rates and greater photosynthetic rates. Numerous studies have shown the positive correlation between nitrogen availability and photosynthetic rate (Longstreth and Nobel 1980) and between leaf nitrogen and photosynthetic performance (Natr 1970). Most essential nutrients, including nitrogen, phosphorus, potassium, magnesium, sulphur, calcium, iron, manganese, copper, boron, zinc and molybdenum, in deficient amounts may limit photosynthesis (Bottrill et al. 1970; Longstreth and Nobel 1980; Spiller and Terry 1980; Terry 1980).

Keywords

Photosynthetic Rate Total Nonstructural Carbohydrate Burned Plot Carbon Dioxide Flux Control Vegetation 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bingham GE, Coyne PI (1977) A portable, temperature-controlled, steadystate porometer for field measurements of transpiration and photosynthesis. Photosynthetica 11: 148–160.Google Scholar
  2. Bottrill DE, Possingham JV, Kreidemann PE (1970) The effect of nutrient deficiencies on photosynthesis and respiration in spinach. Plant Soil 32: 424–438.CrossRefGoogle Scholar
  3. Christensen NL, Muller CH (1975) Effects of fire on factors controlling plant growth in Adenostoma chaparral. Ecological Monographs 45: 29–55.CrossRefGoogle Scholar
  4. Debano LF, Conrad CE (1974) Effect of a wetting agent and nitrogen fertilizer on establishment of ryegrass and mustard on a burned watershed. Journal of Range Management 27: 57–60.CrossRefGoogle Scholar
  5. Debano LF, Rice RM, Conrad CE (1979) Soil heating in chaparral fires: Effects on soil properties, plant nutrients, erosion, and runoff. Us Forest Service Research Paper PSW-145. 21 pp.Google Scholar
  6. Hudson GJ, John PMV, Bailey BS, Southgate DAT (1976) The automated determination of carbohydrate. Development of a method for available carbohydrates and its application to foodstuffs. Journal of the Science of Food and Agriculture 27: 681–687.PubMedCrossRefGoogle Scholar
  7. Longstreth DJ, Nobel PS (1980) Nutrient influences on leaf photosynthesis. Plant Physiology 65: 541–543.PubMedCrossRefGoogle Scholar
  8. Munz PA (1974) A flora of southern California. Berkeley, University of California Press. 1086 pp.Google Scholar
  9. Mustafa J (1978) The effect of growth and species specific variability on photosynthesis along an elevational gradient in the chaparral. MSc Thesis. McGill University.Google Scholar
  10. Natr L (1970) Gas exchange of barley leaves as influenced by mineral deficiency. Scientia Agriculturae Bohemoslavaca 2: 211–218.Google Scholar
  11. Oechel WC, Mustafa J (1979) Energy utilization and carbon metabolism in mediterranean scrub vegetation of Chile and California. II. The relationship between photosynthesis and cover in chaparral evergreen shrubs. Oecologia 41: 305–315.CrossRefGoogle Scholar
  12. Oechel WC, Lawrence W, Mustafa J, Martinez J (1981) Energy and carbon acquisition. In: Miller PC (ed) Resource use by chaparral and matorral. Springer-Verlag, Berlin, pp 151–184.CrossRefGoogle Scholar
  13. Poole DK, Miller PC (1975) Water relations of selected species of chaparral and coastal sage communities. Ecology 56: 1118–1128.CrossRefGoogle Scholar
  14. Radosevich SR, Conrad SG, Adams DR (1977) Regrowth responses of chamise following fire. In: Mooney HA, Conrad CE (eds) Proceedings of the symposium on the environmental consequences of fire and fuel management in mediterranean ecosystems. Us Department of Agriculture, Washington, DC, pp 378–382.Google Scholar
  15. Shaver GR (1981) Mineral nutrient and nonstructural carbon utilization. In: Miller PC (ed) Resource use by chaparral and matorral. Springer-Verlag, Berlin, pp 237–258.CrossRefGoogle Scholar
  16. Spiller S, Terry N (1980) Limiting factors in photosynthesis. II. Iron stress diminishes photochemical capacity by reducing the number of photosynthetic units. Plant Physiology 65: 121–125.PubMedCrossRefGoogle Scholar
  17. Terry N (1980) Limiting factors in photosynthesis. I. Use of iron stress to control photochemical capacity in vivo. Plant Physiology 65: 114–120.PubMedCrossRefGoogle Scholar
  18. Tieszen LL, Johnson DA, Caldwell MM (1974) A portable system for the measurement of photosynthesis using 14-carbon dioxide. Photosynthetica 3: 151–160.Google Scholar
  19. Vlamis J, Gowans KD (1961) Availability of nitrogen, phosphorus and sulfur after brush burning. Journal of Range Management 14: 38–40.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin · Heidelberg 1983

Authors and Affiliations

  • W. C. Oechel
  • S. J. Hastings

There are no affiliations available

Personalised recommendations