Autor: |
Pawson, Steve |
Zdroj: |
New Zealand Tree Grower; Feb2006, Vol. 27 Issue 1, p25-26, 2p, 2 Color Photographs, 1 Graph |
Abstrakt: |
The article deals with the issue of biodiversity preservation in New Zealand's forest stands. Clearfelling is the dominant harvesting system in New Zealand, which immediately changes the microclimate from a protected cool shady forest interior to an open habitat subject to the extremes of temperature and wind. The most prominent change in this disturbed post-harvest landscape is the rapid colonisation by exotic species of herbs and grasses that are adapted to harsh environments. However, species diversity declines sharply a few years after harvest as the forest-adapted species cannot maintain successful breeding populations. A more beneficial method that is less subject to the vagaries of chance dispersal is to provide some form of continuity of forest cover. |
Databáze: |
Supplemental Index |
Externí odkaz: |
|