National Parks in the North of Thailand
North Thailand is home to 34 national parks with further 25 natural sites planned for designation. The parks typically cover and rugged mountain area northward from Phetchabun province. They function as watershed for several rivers.
The biogeographical region of North Thailand consists of a mountainous region with river valleys which include the highest elevations in Thailand. Accordingly many central Asian species of animals and plants reach their southern distributions in these mountain areas. The surrounding lowlands also provide southern habitat for other species. By biogeography we refer to the distribution of animals and plants and particular geography.
The major ecosystems in Northern Thailand are Hill Evergreen Forest, Mixed Deciduous Forest, Deciduous Dipterocarp Forest and Pine Forest.