Soils are subject to varying degrees of direct or indirect human disturbance, constituting a
major global change driver. Factoring out natural from direct and indirect human influence is …

Globally, many rivers are experiencing declining water quality, for example, with altered
levels of sediments, salts, and nutrients. Effective water quality management requires a …

Carbon (C) and nitrogen (N) are the primary elements involved in the growth and
development of plants. The C: N ratio is an indicator of nitrogen use efficiency (NUE) and an …

The physiological relationship between abiotic stress in plants and polyamines was reported
more than 40 years ago. Ever since there has been a debate as to whether increased …

Fungal decomposition of soil organic matter depends on soil nitrogen (N) availability. This
ecosystem process is being jeopardized by changes in N inputs that have resulted from a …

Human production of food and energy is the dominant continental process that breaks the
triple bond in molecular nitrogen (N2) and creates reactive nitrogen (Nr) species. Circulation …

Ecosystem services, the benefits that people obtain from ecosystems, are a powerful lens
through which to understand human relationships with the environment and to design …

This article provides a synthesis of literature values to trace the fate of 150 Tg/yr
anthropogenic nitrogen applied by humans to the Earth's land surface. Approximately 9 …

We review and synthesize the current state of knowledge regarding acid deposition and its
environmental effects across Asia. The extent and magnitude of acid deposition in Asia …

The past few decades have seen a massive increase in coastal eutrophication globally,
leading to widespread hypoxia and anoxia, habitat degradation, alteration of food-web …