HOME >> BIOLOGY >> NEWS
'Acid rain' and forest mass: Another perspective

This press release is also available in Spanish.

A few years ago the study of the effects of atmospheric deposition on forest ecosystems reached beyond the scientific sphere and the term "acid rain" was coined. This problem, which ignores frontiers, happens because, due to the burning of fossil fuels, the amount of sulphur and nitrogen oxides in the atmosphere is greater than that derived from natural processes. These oxides, in the presence of water vapour and under the oxido-reduction conditions present in the atmosphere, produce acids that are deposited, amongst other places, on the forest biomass. Also, intensification in the cattle sector, together with stabling and grouping together of herds, have given rise to the concentration of ammonia emissions in certain zones. This compound, deposited close to the sources of emission, is able to react with the acidic ions deposited at the same time. Subsequently, certain bacteria are capable of oxidising the compound, thus forming nitrate and liberating protons that acidify the soil. Amongst the effects of the deposition of these compounds on the forest mass are the well-known nutrition disorders of the same. One classic effect is that of cation deficit (particularly magnesium) due to the washing both of the forest canopy and the soil produced by these together with anions (sulphates and nitrates). This problem is not very common in forest ecosystems close to the sea given that, in these conditions, the uptake of magnesium with precipitation is high. Another consequence is what is known as the eutrofization of terrestrial ecosystems due to the increase in nitrogen availability (saturation) in systems where historically this element has been the limiting factor in productivity.

In this research, the recycling of nutrients was studied in two, five-year period stages and in two young radiata pine forests (the first stage) and in two
'"/>

Contact: Irati Kortabitarte
iratik@elhuyar.com
34-943-363-040
Elhuyar Fundazioa
13-Oct-2005


Page: 1 2

Related biology news :

1. Brains hearing center may reorganize after implant of cochlear device
2. Preconditioning helps protect brains blood vessels from stroke
3. Brains inertial navigation system pinpointed
4. New study examines brains own marijuana
5. Study shows response to financial loss parallels brains processing of pain
6. Brains reward circuit activity ebbs and flows with a womans hormonal cycle
7. Impulsiveness linked to activity in brains reward center
8. Brains fear center likely shrinks in autisms most severely socially impaired
9. Its in your head: The brains own globin defends you from shock and stroke
10. Scientists identify switch for brains natural anti-oxidant defense
11. Food or its expectation sparks brains hunger centers

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/21/2020)... ... August 20, 2020 , ... NDA Partners Chairman ... Operations executive with expertise in clinical trial planning and feasibility, regulatory inspection readiness, ... Consultant. Throughout his career, Mr. Movahhed has helped design and manage oncology, neurology, ...
(Date:8/7/2020)... ... 06, 2020 , ... Alucio™, a fast-growing provider of cloud-based ... and Jessica Wong have joined the company’s leadership team as Vice President of ... heads development efforts for Alucio’s flagship product, Beacon, an innovative cloud-based content management ...
(Date:8/3/2020)... ... August 03, 2020 , ... ... a new partnership with medical equipment manufacturer, Spectrum Solutions, to provide COVID-19 saliva ... strengthen their laboratory supply chain for more than 10 years. Early in the ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... ... 12, 2020 , ... Inc. magazine today revealed that ... compliance consulting has been named on its annual Inc. 5000 list, the most ... look at the most successful companies within the American economy’s most dynamic segment—its ...
(Date:7/31/2020)... COLLEGE STATION, Texas (PRWEB) , ... July 29, ... ... pre-qualified cleanroom solutions today announced the launch of its new tagline, “BUILDING FOR ... within the biopharmaceutical industry and around the globe, requiring fast track capacity to ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... top radiation centers in 16 countries, has reached its 20th anniversary of worldwide ... in routine use at top universities including University of Pennsylvania, University of Michigan, ...
(Date:7/18/2020)... ... July 16, 2020 , ... Medial EarlySign ... detection and prevention of high-burden diseases, and Centric Consulting, a business and technology ... to utilize existing data in order to identify and prioritize patients for care. ...
Breaking Biology Technology:
Cached News: