MUNICIPALITY OF IVISAN

 LAND AREA

 

            THE MUNICIPALITY OF IVISAN  IS THE SMALLEST TOWN IN TERMS OF LAND AREA IN THE ENTIRE PROVINCE OF CAPIZ. IT IS CLASSIFIED AS A FIFTH CLASS MUNICIPALITY WITH A TOTAL LAND AREA OF 54.20 SQUARE KILOMETERS OR 5,420 HECTARES. THIS IS 2.06 PERCENT OF THE PROVINCE’S TOTAL LAND AREA AND 0.27 PERCENT OF THE REGION’S LAND AREA.

 

LOCATION

           

            IVISAN IS SITUATED ALONG THE NORTHWESTERN COAST OF PANAY ISLAND AT 122°37’37.33” TO  122°43’58” EAST LONGITUDE AND 11°28’54.67” TO 11°35’42.67” NORTH  LATITUDE BOUNDED BY THE   MUNICIPALITIES OF SAPIAN ON THE WEST, PANITAN ON THE SOUTHEAST, SIGMA ON THE SOUTH,  ROXAS CITY ON THE NORTHEAST AND SAPIAN BAY ON THE NORTH.   

 

            THE MUNICIPALITY OF IVISAN IS  15 KILOMETERS SOUTHWEST OF ROXAS CITY, THE PROVINCIAL CAPITAL OF CAPIZ.  MODES OF TRANSPORTATION RANGE FROM PUBLIC UTILITY JEEPNEYS PLYING THE IVISAN-ROXAS CITY ROUTE AND PROVINCIAL PUBLIC UTILITY BUSES AND TAXIS PLYING THE ROXAS-ILOILO AND ROXAS-KALIBO ROUTE.     

 

            IVISAN SERVES AS THE MAIN GATEWAY FROM ROXAS CITY TO THE PROVINCES OF AKLAN AND ILOILO AND OTHER PROVINCES IN THE ISLAND OF PANAY.

           

POLITICAL SUBDIVISION

 

            IVISAN IS DIVIDED INTO FIFTEEN (15) POLITICAL SUBDIVISIONS/BARANGAYS (FIGURE 4) WHICH INCLUDES POBLACION NORTE AND POBLACION SUR CONSTITUTING ITS URBAN CENTER. THE RURAL BARANGAYS INCLUDE AGMALOBO, AGUSTIN NAVARRA, BALARING, BASIAO, CABUGAO, CUDIAN, ILAYA-IVISAN, MALOCLOC NORTE, MALOCLOC SUR, MATNOG, MIANAY, ONDOY AND STA. CRUZ. URBAN AREA HAS A TOTAL AREA OF 236.6216 HECTARES OR 4.37 PERCENT OF THE MUNICIPAL LAND AREA WHILE THE RURAL AREA HAS 5,183.3784 HECTARES OR 95.63 PERCENT (TABLE 1). URBAN BARANGAYS BY BOUNDARY IS PRESENTED IN FIGURE 5.

CLIMATE AND RAINFALL

 

            CLIMATE OF THE MUNICIPALITY BELONGS TO THE THIRD TYPE WHERE SEASONAL CHANGES ARE UNPRONOUNCED. RAINFALL IS EVENLY DISTRIBUTED THROUGHOUT THE YEAR. IT IS RELATIVELY DRY DURING THE MONTHS OF  NOVEMBER TO APRIL AND WET FOR THE REST OF THE YEAR. AVERAGE ANNUAL RAINFALL  IN  1995 IS 234.88 MILLIMETERS (ML) AND IN 1990 IS 141.82 ML SHOWING AN INCREASE OF  93.06 ML OVER A PERIOD OF FIVE YEARS AS SHOWN IN TABLE 2. ANNUAL AVERAGE TEMPERATURE IS 27.5 DEGREES CENTIGRADE (° C) IN 1995 WHICH SHOWS A VERY SLIGHT DECREASE OVER THE 1990 TEMPERATURE WHICH IS 27.88° C.  HOTTEST MONTH IN 1995 IS JUNE WITH A TEMPERATURE OF 33.1° C AND THE COLDEST MONTH IS FEBRUARY WITH 22° C TEMPERATURE.  DRIEST MONTH FALLS ON FEBRUARY WITH ONLY 0.45 ML RAIN  WHILE MONTH WITH HIGHEST RAINFALL IS JUNE WHICH REACHED AT 595 ML. COMPARATIVE MONTHLY TEMPERATURE AND RAINFALL ARE PRESENTED IN FIGURES 6 AND 7.

 

SOIL TYPES

 

            IVISAN HAS FOUR (4) VARYING TYPES OF SOIL WHICH INCLUDES SAPIAN CLAY, THE LOUISIANA CLAY LOAM, BANTOG CLAY AND HYDROSOL AS SEEN IN FIGURE 8. LARGE AREA OF LAND, ABOUT 4,567.4 HAS. OR 87.27 PERCENT OF THE TOTAL LAND AREA (PRESENTED IN TABLE 3) IS CHARACTERIZED BY ITS CLAYEY TEXTURE FOUND IN THE CENTRAL AND WESTERN PART  WHILE CLAY LOAM IS FOUND IN THE SOUTHERN PORTION. THE NORTHERN PART IS ALSO CLAY WITH A PORTION THAT IS HYDROSOL ESPECIALLY ALONG THE COASTAL BARANGAYS.

 

            MOST OF THE LOW-LYING AREAS IS FAVORABLE TO RICE WHICH IS REGULARLY PLANTED BY FARMERS, WHILE THOSE WITH HIGHER SLOPES  ARE PLANTED WITH COCONUT, BANANA, BAMBOO AND OTHER CROPS AND THOSE WITH MORE THAN 30 PERCENT  SLOPES  ARE UTILIZED FOR PLANTING OF FOREST TREES WHICH ALSO SERVES AS THE WATERSHED AREA OF THE MUNICIPALITY.

 

TOPOGRAPHY

 

            IVISAN HAS A VARIED TOPOGRAPHY RANGING FROM PLAIN TO ROLLING LAND AND HILLS TO MOUNTAINS AS CAN BE SEEN IN THE SLOPE MAP IN FIGURE 9. ABOUT 36 PERCENT MORE OR LESS OF THE TOTAL LAND AREA IS RELATIVELY FLAT WITH A  SLOPE OF UP TO 3 PERCENT  WITH A SMALL PORTION THAT IS SWAMPY/COASTAL AND ABOUT 22 PERCENT HAS A SLOPE HIGHER THAN 18 PERCENT. THE REST OF THE LAND AREA HAS A SLOPE OF 4 - 18 PERCENT (SEE TABLE 4). THE HIGHEST ELEVATION IS 404 METERS ABOVE SEA LEVEL AND THE LOWEST IS 10 METERS ABOVE SEA LEVEL. ABOUT 76.29 PERCENT OF THE TOTAL LAND AREA HAS AN ELEVATION OF 0 - 100 METERS ABOVE SEA LEVEL WHILE ONLY 0.07 PERCENT HAS AN ELEVATION OF OVER 400 METERS ABOVE SEA LEVEL AS PRESENTED IN TABLE 5 AND FIGURE 10. SLIGHT EROSION IS OBSERVED NEAR MIANAY-MALOCLOC NORTE BOUNDARY AND AT ILAYA-IVISAN AS PRESENTED IN FIGURE 11.

TOPOGRAPHY OF EACH BARANGAY IS PRESENTED IN TABLE 6. MOUNTAINS IN IVISAN INCLUDES MOUNT UPAO,  SUPO  AND TULALO.

           

GEOLOGIC CLASSIFICATION

            THE GEOLOGIC CLASSIFICATION OF THE MUNICIPALITY IS PRESENTED IN FIGURE 12. ABOUT 3,000 HAS OR 55.35 PERCENT  IS OF SIBALA FORMATION WHILE THE REST IS QUATERNARY ALLUVIUM (TABLE 7). 

 

LAND DISTRIBUTION AND DISTANCES OF BARANGAYS TO THE URBAN CENTER

 

            BARANGAY WITH THE BIGGEST LAND AREA IS CABUGAO WITH 565.3325 HECTARES TAKING 10 PERCENT OF THE MUNICIPAL LAND AREA WHILE THE SMALLEST IS POBLACION SUR WHICH HAS A 68.3169 HECTARES COMPRISING 1.26 PERCENT OF MUNICIPAL AREA AS PRESENTED IN TABLE 1.

 

EXCLUDING POBLACION NORTE AND POBLACION SUR WHICH COMPRISES THE URBAN CENTER, AGMALOBO  IS THE NEAREST BARANGAY TO THE POBLACION WITH A DISTANCE OF 1.50 KILOMETERS WHILE BASIAO, WHERE THE FISHING PORT AND BEAUTIFUL BEACHES IS LOCATED IS THE FARTHEST WITH A DISTANCE OF 9 KILOMETERS  FROM THE POBLACION AS PRESENTED ALSO IN TABLE 1.

 

RIVERS AND CREEKS

            IVISAN IS TRAVERSED BY SIX (6) RIVERS AND TWENTY ONE  (21) CREEKS AS PRESENTED IN FIGURE   . MOST OF THESE RIVERS AND CREEKS ARE FREE FLOWING BUT THERE ARE SOME THAT ARE CONSTRICTED DUE TO SILTATION AS A RESULT OF THE ACTIVITY IN THE UPLAND PORTION OF THE MUNICIPALITY AND SOME ARE PARTIALLY CLOSED DUE TO FISHPOND DIKES  NEAR THE RIVERS OR CREEKS.  WATER FROM THESE RIVERS AND CREEKS EMPTIES TO SAPIAN AND DIAGAO BAY.