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WP4 Comm Plan Key Messages 4May2015_RAM
WP4 Comm Plan Key Messages 4May2015_RAM

... already wet months and slightly less rain during May-Oct. Timing of the rainsacross years, may become less predictable. Local stakeholders see opportunities in the potentially higher annual rainfall, but this would need to be captured and managed effectively over the year. Stakeholders are worried b ...
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Unit A Ecology Notes 2011 No pictures

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Chapter 17: Ecosystems

... the pop gets to a certain size. -Competition: when a pop gets big, organisms compete for available resources -Predation: if the predator population becomes too large, there will not be enough prey to support it. ...
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Structural and Behavioral Adaptations

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Describing natural areas

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Ecosystems
Ecosystems

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Human impact on the nitrogen cycle



Human impact on the nitrogen cycle is diverse. Agricultural and industrial nitrogen (N) inputs to the environment currently exceed inputs from natural N fixation. As a consequence of anthropogenic inputs, the global nitrogen cycle (Fig. 1) has been significantly altered over the past century. Global atmospheric nitrous oxide (N2O) mole fractions have increased from a pre-industrial value of ~270 nmol/mol to ~319 nmol/mol in 2005. Human activities account for over one-third of N2O emissions, most of which are due to the agricultural sector. This article is intended to give a brief review of the history of anthropogenic N inputs, and reported impacts of nitrogen inputs on selected terrestrial and aquatic ecosystems.
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