HOME >> BIOLOGY >> NEWS
Scientists re-evaluating the meaning of 'desertification,' Duke ecologist says

rent factors causing desertification, Reynolds said. Another major factor is climate, especially drought. Critics add that not all changes have an immediate or direct impact on humans, and that how much each factor contributes to dry land deterioration is not clear.

"Over a hundred definitions of desertification have been proposed, each emphasizing unique issues," he added. "Desertification is complex because there are different factors involved. You can't look at any one thing by itself."

His book notes that a temporary loss of vegetation cover due to short term drought is "distinct from, and not necessarily related to" severe soil degradation and permanent vegetation loss that can result from longer lasting and more severe disturbances.

Written by 45 different authors, the book is the product of an international conference co-organized by Reynolds and Stafford Smith at the Free University of Berlin. Located in a part of Germany's capital known as Dahlem, the workshop brought together scientists from a diverse range of disciplines.

The authors accept the United Nations' view that desertification results from various factors, including natural and human activities. Their book, however, goes further than the U.N. by stressing that humans and natural impacts are always coupled.

"There are always human and environmental drivers," Reynolds asserted in his interview. "If you don't consider the human dimensions and the biophysical dimensions simultaneously, you're going to miss the boat."

Reynolds described a hypothetical dry land ranching family that starts out owning a modest-sized herd of cattle grazing in an area with good soil and grass cover. If a drought suddenly sets in, grass output may decrease enough to force that family to sell some cattle in order to pay its bills. If cattle prices then drop, the family goes further into debt.

If the drought becomes prolonged, or family members encounter additional an
'"/>

Contact: Monte Basgall
monte.basgall@duke.edu
919-681-8057
Duke University
6-Mar-2003


Page: 1 2 3 4

Related biology news :

1. Scientists to prototype cyberinfrastructure for research and education access to ocean observatories
2. Scientists sequence genome of kind of organism central to biospheres carbon cycle
3. Scientists find nanowires capable of detecting individual viruses
4. Scientists discover potential new way to control drug-resistant bacteria
5. Scientists explore genome of methane-breathing microbe
6. Scientists decipher genetic code of biothreat pathogen
7. Stuck on you: Scientists lay bare secrets of bacterial attachment proteins
8. Scientists discover proteins involved in spread of HIV-1 infection
9. Scientists fear new Ebola outbreak may explain sudden gorilla disappearance
10. Scientists reinvent DNA as template to produce organic molecules
11. Scientists visualise cellular handmaiden that restores shape to proteins

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


(Date:3/22/2016)... March 22, 2016 ... Sensors Market for Consumer Industry by Type (Image, ... Application (Communication & IT, Entertainment, Home Appliances, ... Forecast to 2022", published by MarketsandMarkets, the ... to reach USD 26.76 Billion by 2022, ...
(Date:3/15/2016)... 2016 --> --> ... Market Research "Digital Door Lock Systems Market - Global Industry ... the global digital door lock systems market in terms of ... is forecast to grow at a CAGR of 31.8% during ... medium enterprises (MSMEs) across the world and high industrial activity ...
(Date:3/11/2016)... --> --> ... Recognition Market by Technology (Pattern Recognition), by Component (Hardware, ... Type (On-Premises and Cloud), by Industry Vertical and by ... the global market is expected to grow from USD ... 2020, at a CAGR of 19.1%. , ...
Breaking Biology News(10 mins):
(Date:4/28/2016)... (PRWEB) , ... April 28, 2016 , ... ... made significant investments in recruiting top industry experts, and expanding its LATAM network ... provides industry-leading tools for clients to manage their clinical trial projects. , The ...
(Date:4/27/2016)... , ... April 27, 2016 , ... The Pittcon Organizing ... 2019. Chuck has been a volunteer member of Committee since 1987. Since then, ... board of directors and treasurer and was chairman for both the program and exposition ...
(Date:4/27/2016)... Virgin Islands (PRWEB) , ... April 27, 2016 ... ... Company Ltd. (d/b/a Biohaven) is pleased to announce the appointment of John Tilton as ... was an Executive Director and one of the founding commercial leaders responsible for ...
(Date:4/27/2016)... ... April 27, 2016 , ... Global Stem Cells Group CEO ... is the founder of GSCG affiliate Kimera Labs in Miami. , In 2004, Ross ... stem cell transplantation for hematologic disorders and the suppression of graft vs. host disease ...
Breaking Biology Technology:
Cached News: