Geography, Climate of Lebak
Geography
Lebak is a coastal town separated from the mainland of Sultan Kudarat by mountain ranges. It is located on the western portion of the Province of Sultan kudarat, and bordered in the north by South Upi Maguindanao; in the south by Kalamansig; in the west by Celebes Sea; in the east by Esperanza.
Lebak is marked with hilly, mountainous ranges. It is about eight feet above sea level. The plains range from level to nearly level while uplands range from nearly level to hilly. Mountainous and gently rolling slopes are suitable for intensive rice and corn farming. Tran River is the longest river in Lebak.
The approximate land area of the municipality of Lebak as of December 31, 1999, is 514.034445 square kilometers. But for planning purposes, the area used is 47,000 hectares, pursuant to the DBM supported by the Land Management Bureau/ Bureau of Lands. Of the 27 barangays, Salangsang has the largest area with 77.2850 square kilometres (29.8399 sq mi), followed by Keytodac with 63.8987 square kilometres (24.6714 sq mi), Villamonte with 46.4137 square kilometres (17.9204 sq mi) and Poloy-Poloy with 338.8183 square kilometres (130.8185 sq mi); while Poblacion III has the smallest area with 5.79411 square kilometres (2.23712 sq mi).
Hydrology/ natural resources
The Municipality is rich in natural resources. It's fishing ground abounds with fish of various species for domestic consumption and export. Marine products bring substantial income to a marginal fisherman. Fishing grounds are practically untapped. Identified watershed areas are Barurao Watershed (6,817.62), Salaman Watershed (8,176 ha.), Tran-Sucong Watershed (8,518.65) and Tran River Watershed (10,230 Ha.).
Groundwater information
| Results | Remarks | ||
| pH Level | 9-May | ||
| Nitrate concentration | Below standard | Bolebak has traced, Ragandang has 1 mg\L, Poblacion 1 has 2 mg\L | |
| The rest not yet contaminated with nitrates | |||
| Dissolved Oxygen | Bolebak, Pasandalan, Poblacion 1 and Tibpuan- conformed to the minimum 5 mg | ||
| Iron | Poblacion 3, Poloy-Poloy, Purikay, Salaman and Tibpuan - trace, Nuling | ||
| Pansud and Tran- greater than 1.2 mg\L | |||
| Rest no Iron detected | |||
| Total Dissolved Solids | Only Pasandalan and Salaman - above maximum limit (500 mg\l) | ||
| Conductivity | only Salaman has conductivity above 1000 us/cm | ||
| Hardness | Only Barurao I and Poloy-Poloy did not conform. Slightly above maximum limit. | ||
| Turbidity | Clear | Below 5 NTU | |
| Salinity | Not saline | Below 1000 mg/l |
The water resources of Lebak comprise Tran River, Salaman River, and Barurao Rivers the Makin and Ebi Waterfalls, Nuling, Salangsang and Ebi Springs. Some are tapped for irrigation and other purposes.
Climate
Under the Koppen climate classification system, the municipality of Lebak features a Tropical Rainforest Climate. Together with the rest of the Philippines, Lebak has a mild climate with evenly distributed rainfall throughout the year. Being located outside of the typhoon path, it does not tropical depression, typhoons and devastating winds. Mean relative humidity for the Municipality of Lebak is 87%. The highest humidity is 89.5% and the lowest is 83.6%.
The municipality of Lebak falls under TYPE IV classification. Rainfall is more or less evenly distributed throughout the year. Prevailing winds- light to moderate.
The municipality of Lebak, PAG-ASA recorded mean maximum and minimum temperatures of 34.3 and 32.5 °C (93.7 and 90.5 °F), respectively.
Mean, Maximum and Minimum Temperature ( °C )
| Maximum | Minimum | |
|---|---|---|
| Mean | 34.3 | 32.5 |
| Highest | 35.7 | 34.1 |
| Lowest | 33.1 | 31.4 |
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