New Corella’s terrain consists of flat, rolling and mountainous portion rich with forest and mineral resources. The highest terrain is located at Barangay Patrocenio with an elevation 361 meters high while the lowest terrain is located at El Unido, Mesaoy with an elevation of 16 meters high.
2.3.2 Slope Classification
New Corella has a total land area of 26,312 hectares that are grouped according to its classification. There are 7,856.76 hectares or 29.86% categorized under 0-3% or level to nearly level grouping; 4,380.94 hectares or 16.65% falls under 5-8% or characterized as gently sloping gently undulating or undulating soil areas. From slope 8-15% it comprises 3,560 hectares or 13.53% categorized as gently rolling for moderately and strongly sloping areas. Under 15-30% slope, it comprises 8,790.84 hectares or 33.41% made up of very strongly sloping or hilly soil areas while under slope classification 30-65%, it comprises 1,718.17 hectares or 6.53% that includes steep sloping or very hilly soil areas. The biggest number of hectares falls under slope classification 15-30%.
2.4.1 Rock Formations
The mainland of New Corella has flat lands with irregular or hilly topography in Mambing, Cabidianan, Sta Fe, El Salvador, Del Monte, Patrocenio and New Cortez.
New Corella has three types of soil surface, to wit;
Land resources of New Corella are further classified in accordance with its capability. Land area capable for cultivation has a total of 14,550.53 hectares or 55.30% of the total 26,312 hectares. These agriculturally-feasible lands are located in 14 barangays, namely: Cabidianan, Carcor, Del Pilar, Limbaan, Macgum, Mesaoy, New Bohol, New Cortez, New Sambog, San Jose, Sta. Cruz, Sto. Niño, Suawon, Poblacion and San Roque.
The total land area limited to forestry and wildlife has a sum of 7,630 hectares or 29%. These areas area characterized by a slope of more than 18% and are declared as a national reserve forest land. It is composed of barangays Mambing, Patroceño, El Salvador, Sta. Fe and Del Monte. Included here are the portions of barangays Cabidianan, Limbaan, San Jose and New Cortez that are also capable for forestry.
While barangays with idle lands capable for pasture includes portion of Cabidianan, Carcor, New Bohol, Limbaan, Macgum, New Cortez, New Sambog, San Jose, Sta. Cruz, Sta. Fe, Sto. Niño, Suawon, Mambing, Patroceño, El Salvador and Del Monte. It has a total land area 3,946.8 hectares or 15% of the total land area. However, these areas are still potential for diversified crops production.
New Corella’s land use is classified into two (2) uses based on DENR’s data, namely; Alienable and Disposable (A&D) Lands with 18,902.01 has and Forestlands with 6,289.61 hectares.
Great volumes of sand and gravel are found in Saug River that can be used for construction materials and for gravelling roads. Another attracting factor to road building construction is the presence of pulverized materials (limestone) that are mainly found in barangays Del Monte, Patrocenio, New Cortez, and San Jose. Limestone contributes greatly to road building due to its strong compact capability.
Guano and organic materials are also abundant in this municipality and are presently used as raw materials in the processing of organic fertilizers. Its deposits are found in the caves of Patrocenio, San Jose, New Cortez and Del Monte particularly Paraiso Cave. Guano deposits can sustain up to 50 years of operation.
New Corella has one (1) river and fifty (50) creeks. The only river in the Municipality is known as Saug River. It is the main waterway of all major tributaries from creeks and irrigation drains.
|Name of Water Body||Location|
|Lunao creek/canal||Sto. Niño, Suawon|
|Burako Creek||New Cortez|
|San Jose creek/canal||San Jose|
|Sta. Fe Creek 1||Sta. Fe|
|Muwab Creek||Mambing, El Salvador|
|Linda Creek||El Salvador|
|Mambing creek 1 & 2||Mambing|
|Flood Control Canal||Poblacion|
|Plantation Canal||San Roque|
|Patrocenio Creek 1, 2 & 3||Patrocenio|
|Malitbog Creek||Malitbog, Mesaoy|
|Mambing Creek 1 & 2||Mambing|
|Del Pilar Creek||Del Pilar|
|Saug 1 & 2||Macgum|
|El Salvador creek 4, 5, 6, 7, 8 & 9||El Salvador|
|Mesaoy Creek 1 & 2||Mesaoy|
|Ibuan Creek||Mesaoy, New Bohol|
|Anaman Creek||New Cortez|
|Sangoy Creek||Limbaan, Poblacion, Del Monte|
|Vega Creek||Limbaan, Del Monte|
|Sta. Fe Creek 1, 2 & 3||Sta. Fe|
|Cabidianan Creek 1 & 2||Cabidianan|
|Poblacion Creek (Schisto Canal)||Poblacion|
Among the groundwater resources are three (3) headwaters of the watershed, namely: Hijo, Saug1 and Saug2 Watershed areas. The first headwater covers a total area of 1,039.41, the second covers a total area of 6,312.00 has and last one covers a total of 17,542.64 has.
|Name of Watershed||Location||Area (has)|
|Hijo Watershed||New Cortez, Patrocenio, Del Monte, El Slavador||1,039.41|
|Saug 1 Watershed||Cabidianan, Del Monte, El Salvador, Mambing, |
San Jose, Sto. Niño, Suawon
|Saug 2 Watershed||New Cortez, Cabidianan, Patrocenio, Del Monte, |
Sta. Fe, New Bohol, Mesaoy, New Cortez, Del Pilar,
There is a significant increase of temperature in year 2020 by 1.2 0C for the month of June, July and August while for the month of March, April, May and September October and November it will be hotter by 1.1 0C. While in 2050, in the month of June, July and August will be very hot with an increase of 2.5 0C, followed by the month of March, April and May it will be increased by 2.3 0C while for the Month of September, October, November and December, January and February will be increased by 2.1 and 1.9 0C respectively.
In year 2020, in the months of December, January and February will experience greater rainfall of 695.604 as compared to months March to November. While in year 2050, the projected seasonal rainfall will be greater still in the month of December to February. Therefore, in these months, we should be vigilant for possible flooding and landslides.
Planting season should be avoided during months that are predicted to be flooding season to avoid agricultural losses.
Meanwhile in the latest hazard profiling of the province in CY 2014, a flood map for New Corella was generated see Figure below.
Several drainages and flood control structures were constructed especially during the existence of the banana plantations like the San Roque to Del Pilar Drainage which was about four (4) kilometers long constructed by Marsman Drysdale. The Dissilting of Limbaan Creek which was three (3) kilometers by Lapanday Group of Companies and the 60-meters wide drainage from New Cortez to Limbaan funded by the Local Government Unit of New Corella and the Provincial Government of Davao del Norte. Moreso, dissilting of Malitbog creek with a stretch of 6 kms. is another project implemented by the government to control flooding instances.
There are several small drainages constructed to at least divert the flow of the water at the public market, Issa Dam and from the Poblacion proper.
Both the eroded and the erosion potential areas affects the agricultural productivity in the upland farms and will continuously pose as threat unless farmers will adopt appropriate upland technology.
In New Corella, barangay New Bohol is highly susceptible to landslide specifically in Purok 1 and 2; Purok 3(Common 1), 4(Kapatagan) and 5 while barangays New Cortez and Del Monte are moderately to highly susceptible to landslide. These are areas like Purok 4, 5 and 6; Purok 2 (Matin-ao) and 3(Kauswagan) all of New Cortez.
While the rest of the barangays like Cabidianan, El Salvador, Limbaan, Mambing, Mesaoy, Patrocenio, San Jose, Sta. Fe and Suawon are moderately susceptible to landslide.