Colorado mountains
 

Pattern and control of primary production

Plant growth in most ecosystems forms the base or “primary” component of the food web. The amount and type of plant growth in an ecosystem helps to determine the amount and kind of animals (or “secondary” productivity) that can survive there.

Altered bacterial community structure of Chronic N-amended soils of hardwood stand at Harvard Forest, MA, USA

Poster Number:  123 Presenter/Primary Author:  Rakesh Minocha At the Harvard Forest, Petersham, MA, the impact of twenty years of annual ammonium nitrate application on the forest soil bacterial communities was studied using pyrosequencing of 16S rRNA genes.

A southern hemisphere observatory – building on seventy five years of environmental data

Poster Number:  116 Presenter/Primary Author:  Nicky Allsopp The South African Environmental Observation Network (SAEON) took over responsibility for the monitoring of streamflow in the Jonkershoek Valley in 2009.  The Jonkershoek catchment experiments,

Improving the understanding and scaling of land-atmosphere carbon, water and energy exchange in a Chihuahuan Desert shrubland at the Jornada Experimental Range, Southern New Mexico.

Poster Number:  111 Presenter/Primary Author:  Aline Jaimes Arid and semiarid ecosystems represent about 40% of the world’s land cover and are home of about 35% of the world’s human population.

Comparison of chamber and eddy covariance CH4 fluxes using a new “open path” gas analyzer

Poster Number:  109 Presenter/Primary Author:  Terenzio Zenone Traditional measurements of CH4 fluxes are made with static chamber techniques and/or with closed-path eddy covariance (EC) systems.

 
 
Background Photo by: Nicole Hansen - Jornada (JRN) LTER