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 73
The autotrophic (self-feeding) component, which is concerned with the fixation of
light energy from the sun and the use of simple inorganic materials obtained
mainly from the soil (lichens are an exception because they may obtain most of
their ...
The autotrophic (self-feeding) component, which is concerned with the fixation of
light energy from the sun and the use of simple inorganic materials obtained
mainly from the soil (lichens are an exception because they may obtain most of
their ...
Page 74
A very small proportion of radiant energy is transformed into potential or food
energy and retained in the plant tissue, 'locked in' with the inorganic elements
absorbed by the roots to form new protoplasm. The potential chemical energy of
these ...
A very small proportion of radiant energy is transformed into potential or food
energy and retained in the plant tissue, 'locked in' with the inorganic elements
absorbed by the roots to form new protoplasm. The potential chemical energy of
these ...
Page 89
Whilst we cannot improve on nature's primary productivities without massive
inputs of energy and materials we can sometimes improve on secondary
productivity through a thorough understanding of how an ecosystem works. A
classic ...
Whilst we cannot improve on nature's primary productivities without massive
inputs of energy and materials we can sometimes improve on secondary
productivity through a thorough understanding of how an ecosystem works. A
classic ...
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Contents
Introduction | 3 |
Initial approaches to vegetation study | 11 |
Initial approaches to soil study | 28 |
Copyright | |
9 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 ecological ecosystem effect energy environment environmental established example exist factors field fire 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 operate organic particularly pattern peat period pest pine plant podzol 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 |