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Geographical Location

The jurisdiction of the Ayagama Pradeshiya Sabha is situated within the Ratnapura District of the Sabaragamuwa Province in Sri Lanka. Geographically, the area lies between 6.38° – 6.40° North latitude and 80.29° – 80.30° East longitude.
The region is positioned at an elevation ranging from approximately 1000 to 1500 feet above sea level, contributing to its diverse landscape and environmental characteristics.

Ward Map of Ayagama Pradeshiya Sabha

Weather and Climate

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Average Annual Temperature and Rainfall of The Area

As the area falls within the Southwestern Wet Zone, it experiences a humid tropical climate throughout the year. The average annual temperature is around 27°C, with the maximum average temperature reaching approximately 32°C and the minimum average temperature around 23°C.

The region receives rainfall from three main sources:

• Southwest Monsoon

• Northeast Monsoon

• Convective (thunderstorm) rainfall

The annual rainfall exceeds 4,000 mm, with the highest rainfall occurring during the Southwest Monsoon season, which extends from May to September. Following the Southwest Monsoon, the area receives convective rains, and then the Northeast Monsoon brings additional rainfall.
The lowest rainfall is typically recorded in the month of February.

Topography and Drainage

The area forms part of the Highland Complex, which dates back to the Precambrian era. It consists of elevated mountainous terrain rising from sea level up to about 1,400 meters. Sloping ridges can be observed extending from north to south, with additional ridges stretching towards the west and east. A small valley-like depression lies in the central part of the region. Overall, the landscape is predominantly hilly and undulating.

Due to its sloping terrain, the region features a variety of drainage patterns flowing through the hillside slopes, with the dendritic (branching) pattern being the most prominent. The Kalu River forms the northern boundary of the area, while the Galatura River, which flows through the central region and is often referred to by different local names based on the village it passes through, also plays a significant role in the area's drainage system.

Soil Conditions Of The Area

Several major soil types found in Sri Lanka are present within the region:

• Reddish Yellow Podzolic Soil
  This soil type covers nearly 95% of the upland areas and is highly suitable for crop cultivation.
• Alluvial Soil
  Found mainly in riverbanks, floodplains, and flatlands, these soils are well-suited for paddy cultivation.
• Latosol Soil
  Typically located in steep slopes and hilltops, this soil type is generally infertile.
• Soil Acidity
  The soil in the region maintains a pH level between 5.5 and 6.5, indicating moderate acidity.