Flora and Fauna
Kannur district is very rich in vegetation. Natural vegetation, except in some coastal regions, consists of different types of forests. But, in spite of generally favourable climatic conditions, vegetation is not uniform. In restricted regions, with their own micro climate or special edaphic features, plant formations assume different characters. Thus, plant communities, ranging from psammophytes and mangroves to evergreen forests are seen in this district.
The coastal region is a comparatively narrow zone, characterised by secondary soil which is rather lose and sandy. The sterile sandy tract supports only a poor vegetation of the psammophyte type. Plants are few and mostly prostrate. Erect species are small and short. Owing to very poor water holding capacity of the soil, these plants are provided with special xerophytic adaptations. Another conspicuous feature of this area is the mangroove vegetation, found at the estuaries of rivers and backwaters, and often extending to the interior along their banks. Human interference has much changed the vegetation of the coastal region.
Major part of the district comes under midland region with numerous hills and dales and it presents an undulating surface gradually ascending and merging into the slopes of Western Ghats. Soil is secondary and lateritic with underlying rock of laterite or disintegrated gneiss. Typical flora of this area is deciduous forest consisting of a mixture of evergreen and deciduous trees. Undergrowth consists of a variety of annuals and perennials.
The mountains are a continuation of the midland region, gradually ascending to the main ridge of the Western Ghats. Soil in the western slopes is a ferrugenous red, sandy loam. Vegetation over the whole area is of the forest type. Irregular distribution of teak, localised areas of bamboo dominance, change of good quality forest into open grass lands, etc. are characteristic.
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