NGS Logo png

#NGS National Green Specification
A Specification for the 21st Century

replacement website is coming (preview)

GBE Logo def_tr40 png

GBE Green Building Encyclopaedia
One stop shop for environmental construction know-how

Search: PAGES or FILES

01733 238148  0044 1733 238148
07973 281024 •  0044 7973 2810248 
Scribd facebook Skype = BrianSpecMan
Twitter = @BrianSpecMan Murphy 
Daily Additions & Updates
Daily Monthly and Quarterly NGS News & Diary

2014 CAPEM logo EU investing png


#1773: 22/05/2015: TGR Steering Group Meeting in Bristol

Dropping students work off at LSBU on the way GBE 3D View on the way ready for Vision London presentation
RSS Icon




Process by which areas of desert are created by deforestation of natural forests or the activities of man.
Desertification may be brought on by Global warming.
(Cherrington ’95)

Is the degradation of land in arid and dry sub-humid areas, resulting primarily from man-made activities and influenced by climatic variations.
(GreenSpec AEP ’09)

Land degradation in arid, semi-arid, and dry sub-humid areas resulting from various factors, including climatic variations and human activities.
Further, the UNCCD (The United Nations Convention to Combat Desertification) defines land degradation as a reduction or loss, in arid, semi-arid, and dry sub-humid areas, of the biological or economic productivity and complexity of rain-fed cropland, irrigated cropland, or range, pasture, forest, and woodlands resulting from land uses or from a process or combination of processes, including processes arising from human activities and habitation patterns, such as:
(i) soil erosion caused by wind and/or water;
(ii) deterioration of the physical, chemical and biological or economic properties of soil; and
(iii) long-term loss of natural vegetation.
Conversion of forest to non-forest.
(UNCCD ’12)

Desertification is occuring on 2/3 of our planet's seasonally humidity grassland environment surfaces.
it occurs where the soil is exposed by removal of plants by grazing, errosion or fire to allow soils to be exposed to extremes of temperature (cold at dawn and hot at midday) to affect and damage the soil structure, evapouration of moisture, release of carbon dioxide, and methane and prevention of moisture absorption, prevention of biological breakdown of crop waste before the following season, avoiding oxidation of dead grasses leading to woody growth; to replenish the soil, formation of algea crusts that prevent moisture absorption; affecting the microclimate but because it affests such large areas of the globe that it affects the macro-climate of the planet.
(NGS BRM '13)

© NGS BrianSpecMan aka Brian Murphy
11th May 2013 - 29th October 2013

See Also:



© NGS BrianSpecMan aka Brian Murphy
11th May 2013 - 29th October 2013