Titlebook: Ecology and Decline of Red Spruce in the Eastern United States; Christopher Eagar,Mary Beth Adams Book 1992 Springer-Verlag New York, Inc.

BIPED

Characterization of Eastern U.S. Spruce-Fir Soilsgy, elevation, and climate. This chapter will describe the characteristics of soils supporting eastern spruce-fir ecosystems, including soil properties that are important in understanding forest function and the consequences of atmospheric deposition to forested ecosystems. Chapter 1 described the s

Nostalgia

Highbrow

Condition and Recent Trends in High-Elevation Red Spruce Populations first of the two fundamental questions regarding trends in red spruce: Has the condition of red spruce (. Sarg.) in the eastern United States really deteriorated, and if so, what is the nature and magnitude of that trend? This first question bears close scrutiny: a search for mechanisms to explain

thyroid-hormone

山顶可休息

Soil-Mediated Effects of Atmospheric Deposition on Eastern U.S. Spruce-Fir Forestssms may be involved. In the German situation, soil-mediated hypotheses played (and still play) a major role; namely, soil acidification and aluminum toxicity (Ulrich et al. 1980) and base cation deficiencies (especially Mg; Rehfuess et al. 1987, Hüttl and Wisniewski 1987). In the red spruce case, th