Basic BiogeographyBasic considerations. Introduction. Inital approaches to vegetation study. Inital approaches to soil study. Plant dynamics and the nature of vegetation. Ecosystems. Ecological factors and environmental variations. distubed ecosystems. Selected examples from the British Isles. The vegetation. The soils. The impact of man. |
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Page 28
Soil usually results from the weathering of underlying solid rock surfaces . But
there are soil types which have developed from transported materials , such as
glacial debris , wind - blown sands or river alluvium . Others have much of their
bulk ...
Soil usually results from the weathering of underlying solid rock surfaces . But
there are soil types which have developed from transported materials , such as
glacial debris , wind - blown sands or river alluvium . Others have much of their
bulk ...
Page 83
Population numbers at any given time may also change as a result of immigration
, emigration or migration of species . These movements can be a response to a
density - independent factor ( climatic seasonality ) or a density - dependent ...
Population numbers at any given time may also change as a result of immigration
, emigration or migration of species . These movements can be a response to a
density - independent factor ( climatic seasonality ) or a density - dependent ...
Page 250
The aim is to maintain representative habitat types over a wide ecological range
which will provide reference points against which changes resulting from
activities by man can be measured . These sites will allow important research into
the ...
The aim is to maintain representative habitat types over a wide ecological range
which will provide reference points against which changes resulting from
activities by man can be measured . These sites will allow important research into
the ...
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Contents
Introduction | 3 |
Initial approaches to vegetation study | 11 |
Initial approaches to soil study | 28 |
Copyright | |
7 other sections not shown
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Common terms and phrases
acidic activities agricultural animals approach areas associated become birch Britain British brown cause changes chemical Class clay climatic complex cover crop cycle described detailed determine dominant early ecology ecosystem effect energy environment environmental established example exist factors field fire flora forest frequently further gley grass grazing ground growing growth horizon humus important increase influence insect land layer less limit loss material measure methods mountain native natural North nutrients oakwoods occur organic particularly pattern peat period pest pine plant podzol pollen population present problem produce reach recent reference region relatively result seedlings similar slopes soil species spread stage stands structure succession surface Table tree tree-line types unit upland usually variations various vegetation whilst wood woodland zone
Bibliographic information
| Title | Basic Biogeography A Longman Text |
| Author | Nigel Pears |
| Edition | 3, illustrated, reprint |
| Publisher | Longman, 1977 |
| Original from | the University of Michigan |
| Digitized | 22 Aug 2011 |
| ISBN | 0582484014, 9780582484016 |
| Length | 272 pages |
| Export Citation | BiBTeX EndNote RefMan |