Geographic Characteristic

geographic characteristic of compostela Valley

LOCATION, LAND AREA, AND POLITICAL SUBDIVISION

The province of Compostela Valley lies in the mid-eastern portion of Mindanao Island approximately within 125º40’ to 126º17’ East Longitude and 7º04’ to 8º00’ North Latitude.  It is bounded by Agusan Del Sur on the north; Davao Oriental on the east and south; Davao Gulf on the southwest; and Tagum City, New Corella, Asuncion, San Isidro and Kapalong, all of Davao Del Norte on the west and northwestern portion. (see Location Map)

Total land area of the province is 4,666.93 square kilometers, representing 14.73 percent to the region’s land area (31,692.74 sq km.), and 1.55 percent to the Philippines’ total land area of 300,000 sq.km. It is primarily classified into alienable and disposable (A & D) at 1,530.00 square kilometers, and forestland at 3,135.96 square kilometers.

There are 11 municipalities comprising the province, which are grouped into two (2) legislative districts. District I is composed of Compostela, Maragusan, Monkayo, Montevista, and New Bataan.District II includes Laak, Mabini, Maco, Mawab, Nabunturan, and Pantukan. The province has also 237total barangays. (Table 1)

Nabunturan is the capital town of the province where the provincial capitol is located. As a point of reference, Davao City is 90 kilometers away from the province’s capital town center. The distance is approximately a two-hour ride by a public utility bus along the Davao-Butuan segment of the Philippine-Japan-Friendship Highway.

Table 01. Land Area (in square kilometers), By Municipality , Compostela Valley Province (in square kilometers)

Municipality Land Area No. of Barangay % Distribution
1. Compostela 187.50 16 4.02
2. Laak 947.06 40 20.29
3. Mabini 412.25 11 8.83
4. Maco 244.40 37 5.24
5. Maragusan 394.29 24 8.45
6. Mawab 169.52 11 3.63
7. Monkayo 692.89 21 14.85
8. Montevista 265.00 20 5.68
9. Nabunturan 245.29 28
10. New Bataan 420.13 13 9.00
11. Pantukan 420.13 13 9.00
TOTAL 4,666.913* 237 100.00

Source: Department of Environment and Natural Resources, Region XI *RA8470

Map 1. Location Map, Compostela Valley Province

Map 1. Location Map, Compostela Valley Province

The highest elevation in the province reaches a height of more than 2,000 meters above sea level (MASL), and this is found in the municipalities of Maragusan, New Bataan and Pantukan having an aggregate area of 80.89 square kilometers or 1.73 percent of the total land area of the province. The lowest elevation is at below 100 MASL with Laak having the widest area of 215.37 hectares while New Bataan with the narrowest of 19.10 sq. kms.

Around 30.41 percent of the province total land area is characterized with 500-1000 MASL  elevation of which all municipalities except Montevista have areas within this elevation range (Table 02).

Table 02. Land Area by Elevation Class (square kilometers), Compostela Valley Province

Municipality < 100 MASL 100 - 300 MASL 300 - 500 MASL 500 - 1000 MASL 1000 - 2000 MASL >2000 MASL Total
Compostela Valley 855.26 1.232.62 270.97 1419.26 807.93 80.89 4,666.93
%Distribution 18.33 26.41 5.81 30.41 17.31 1.73 100.00
1. Compostela 52.38 0.35 - 115.37 19.40 - 187.50
2. Laak 215.37 665.98 55.48 10.23 - - 947.06
3. Mabini 45.20 0.54 - 295.61 70.90 - 412.25
4. Maco 57.04 19.74 0.69 130.65 36.28 - 244.40
5. Maragusan - - - 138.04 234.29 21.96 394.29
6. Mawab 82.35 56.78 19.77 10.62 - - 169.52
7. Monkayo 193.33 131.99 88.40 253.05 26.12 - 692.89
8. Montevista 66.43 159.76 38.81 - - - 265.00
9. Nabunturan 82.04 89.64 39.42 30.66 3.53 - 245.29
10. New Bataan 19.10 102.79 17.08 217.13 284.81 47.69 688.60
11. Pantukan 42.02 5.05 11.32 217.90 132.90 11.24 420.13

Source: of Soils ans Water Management, Region XI (based on 2015 data gathered)

SLOPE

Majority of the areas in the province are within the above 50 percent slope sharing 26.61 percent of the total area in the province. New Bataan, Maragusan and Mabini are top three municipalities with most areas belonging to this slope category. On the other hand, Monkayo and Nabunturan have land areas majority within the 0-3 percent slope category (Table 03).

Table 03. Land Area by Slope Classification (in square kilometer), Compostela Valley Province

Municipality 0 - 3% 3 - 8% 8 - 18% 18 30% 30 - 50% > 50% Total
Compostela Valley 676.33 529.55 963.49 801.73 453.84 1,241.99 4.666.93
%Distribution 14.49 11.35 20.65 17.18 9.72 26.61 100.00
1. Compostela 52.38 0.35 28.34 50.06 37.75 18.62 187.50
2. Laak 55.22 206.60 563.92 98.57 21.97 0.78 948.06
3. Mabini 30.17 6.64 17.24 43.81 113.32 201.07 412.25
4. Maco 44.54 4.30 37.70 29.99 10.87 117.00 244.40
5. Maragusan 33.90 22.49 31.54 48.22 16.99 241.15 394.29
6. Mawab 84.92 0.36 32.38 29.68 12.30 9.88 169.52
7. Monkayo 142.80 120.33 82.39 190.93 62.36 94.08 692.08
8. Montevista 59.55 49.29 59.69 92.87 2.66 0.94 265.00
9. Nabunturan 106.04 4.93 35.50 55.86 9.51 33.45 245.29
10. New Bataan 15.70 112.43 20.52 63.23 128.40 348.32 688.60
11. Pantukan 51.11 1.83 54.27 98.51 37.71 176.70 420.13

Source: Bureau of Soils and Water Management, Region XI (based on 2015 data gathered)

TEMPERATURE

The record showed that the average monthly temperature of the province was 27.4 degrees centigrade. The warmest occurred in April at 28.80 degrees centigrade while the coolest temperature took place in January at 24.38 degrees centigrade (Table 04).

RAINFALL

In 2015 as shown in Table 4 below, the heaviest monthly average rainfall was in January at 375.9 millimeters and the lightest was in August at 67.5 millimeters (Table 04).

Table 4. Monthly Rainfall Average in Millimeter (mm), (JANUARY – NOVEMBER 2015), Compostela Valley Province  

Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sept. Oct. Nov.
375.9 103.8 104.4 96.4 96.6 185.5 138.2 67.5 169.4 282 259.1

Source: PAGASA

WIND DIRECTION

Record shows that the wind is usually blowing to the north especially during the months of June – July and September; to the north-northeast during the months of August, October, and November to December; to the south during the months of March, April and May; and to the south-southwest in Januaryto February.

Basically, Compostela Valley is a typhoon free province until Typhoon Pablo hit the province on December 4, 2012. Five (5) municipalities were badly affected by the said typhoon, namely New Bataan, Compostela, Monkayo, Montevista and Laak. Nevertheless, mountain ranges protect the area from the visiting typhoons of the neighboring provinces and regions.

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BETA: Testing Phase