Mountains are an essential component of the global life-support system. They are
characterized by a rugged, heterogenous landscape with rapidly changing environmental …

Herbivores and pathogens impact the species composition, ecosystem function, and
socioeconomic value of forests. Herbivores and pathogens are an integral part of forests, but …

Nitrogen emissions to the at-mosphere due to human activity remain elevated in in-
dustrialized regions of the world and are accelerating in many develo** regions (Galloway …

Abstract Conceptual,,, and numerical,,, models of nitrogen cycling in temperate forests
assume that nitrogen is lost from these ecosystems predominantly by way of inorganic forms …

SummaryI. INTRODUCTION–A HYPOTHESIS 374II. EFFECTS OF CALCIUM ON
PHYSIOLOGICAL PROCESSES 3761. The chemical uniqueness of calcium 376 (a) …

Atmospheric mercury (Hg) deposition varies along elevation gradients and is influenced by
both orographic and biological factors. We quantified total Hg deposition over a 2 year …

The solution chemistry of forested streams primarily in western North America is explained
by considering the major factors that influence this chemistry—geological weathering; …

We analyzed long‐term (23 years) data of inorganic N deposition and loss for an extensive
network of mature mixed hardwood covered watersheds in the southern Appalachians of …

The perceived health of forest ecosystems over large temporal and spatial scales can be
strongly influenced by the frames of reference chosen to evaluate both forest condition and …

Hydraulic lift, water movement from deep to upper soil layers by roots, is a widespread
process in temperate and semi‐arid environments. It can contribute 17–81% of total water …