Nong Leng Sai
Location:
19°23'N, 99°49'E; about 25 km north of the town of Phayao, Mae Chai District, Phayao Province.
Area:
1,050 ha.
Altitude:
400m.
Biogeographical Province:
4.10.4.
Wetland type:
15.
Description of site:
An extensive marsh lying on a tributary of the Nam Mae lag upstream of Kwan Phayao. The marsh drains out at its southern end. Land Use Classification Division (1977-1979) marks six pools of less than 10 ha in size at the southern end.
Climatic conditions:
Tropical monsoonal climate with an average annual rainfall of 1,309 mm (range 710-1,997 mm), 87.8% of which falls during the southwest monsoon (May to October). The mean annual temperature is 26.3°C (range 3.9-44.1°C). (Data from Nan Province, to the east).
Principal vegetation:
No information is available on the aquatic vegetation. Chiefly rice paddy in adjacent areas.
Land tenure:
The wetland is state owned; public use is permitted. Surrounding areas are mainly privately owned.
Conservation measures taken:
None.
Conservation measures proposed:
The site requires a survey in order to determine its status.
Land use:
No information. Cultivation of rice (one crop of wet-season rice per year) in surrounding areas.
Possible changes in land use:
 
Disturbances and threats: No information.
Economic and social values: No information.
Fauna: No information.
Special floral values: No information.
Research and facilities:  
References: Land Use Classification Division (1977-1979).
Criteria for inclusion: 0.
Source:
Jira Jintanugool and Philip D. Round.