By Gene E. Likens, F. Herbert Bormann (auth.), Gene E. Likens (eds.)
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Additional resources for An Ecosystem Approach to Aquatic Ecology: Mirror Lake and Its Environment
The P and DOC from forest floor soil solution are rapidly adsorbed by the upper B-horizon of the mineral soil, which thereby provides a powerful regulating mechanism for stream or drainage water chemistry and watershed-ecosystem outputs. 9 mg II Geological Out put ------.. B-20. Flux of dissolved organic carbon through the forest-ecosystem. ) empty will produce relatively little flow and modest discharge rates so long as storage capacity is unsatisfied. Transpiration tends to keep hydrologic storage at a minimum during the growing season, hence streamflow during summer months is typically low even though precipitation is evenly distributed throughout the year.
F. S. B-17. General relationship between the concentration of dissolved substances and particulate matter and streamflow in the Hubbard Brook Experimental Forest. (After Bormann et aI. 1969, Bioscience 19(7):608, Fig. 8. Copyright © 1969 by The American Institute of Biological Sciences. ) We have discussed the topic of biotic regulation of outputs by the forested ecosystem in our volume, Pattern and Process in a Forested Ecosystem (Bormann and Likens 1979). In summary, we proposed a model of forest development (to be discussed more fully in Chapter IX) that envisages four phases of development: Reorganization, Aggradation, Transition and Steady State following the disturbance of the forest-ecosystem by, for example, clear cutting or hurricanes.
4 charges/mole. E). B-6 and 7). Monthly volume-weighted concentrations of hydrogen ion, sulfate, ammonium, DOC, phosphorus and to lesser extent K+, have maximum values in the summer and minimum values in the winter; Mg2+, Ca2+, Na+, K+ and Cl- have peaks in concentration during the autumn, possibly in relation to the occurrence of coastal storms; Ca2+ and N0 3- concentrations are relatively low from June to February and then reach maximum concentrations during the spring. These concentration patterns are largely independent of amount of precipitation, which varies relatively little on a monthly basis throughout the year.
An Ecosystem Approach to Aquatic Ecology: Mirror Lake and Its Environment by Gene E. Likens, F. Herbert Bormann (auth.), Gene E. Likens (eds.)