SUPPORTING REPORT (1) (Part I: Master Plan) IV : Land Use Planning
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The Study on Comprehensive Disaster Prevention around Mayon Volcano SUPPORTING REPORT (1) (Part I: Master Plan) IV : Land Use Planning SUPPORTING REPORT (1) - IV LAND USE PLANNING Table of Contents Page 1. PRESENT SITUATION....................................................................................... IV - 1 1.1 Natural Feature............................................................................................... IV - 1 1.2 Current Land Use........................................................................................... IV - 3 1.3 Land Ownership............................................................................................. IV - 4 1.4 Land Management........................................................................................ IV - 10 1.4.1 Present Land Use Plan ................................................................... IV - 10 1.4.2 Hazard Area by PHIVOLCS.......................................................... IV - 15 1.4.3 Environmental Issue....................................................................... IV - 16 1.4.4 Agricultural Category..................................................................... IV - 22 1.4.5 Land Conversion ............................................................................ IV - 23 2. PRESENT VULNERABILITY AND COPING CAPACITY ........................... IV - 26 3. LAND USE PLAN............................................................................................. IV - 26 3.1 Basic Concept .............................................................................................. IV - 26 3.1.1 Hazard Zone................................................................................... IV - 27 3.1.2 Environmental Issue....................................................................... IV - 29 3.1.3 Agricultural Issue........................................................................... IV - 29 3.1.4 Development Plan of Municipalities in the Study Area................. IV - 29 3.2 Zoning .......................................................................................................... IV - 30 3.2.1 Zoning Element.............................................................................. IV - 30 3.2.2 Zoning Concept.............................................................................. IV - 31 3.3 Land Use Plan .............................................................................................. IV - 34 i List of Tables Page Table IV 1.1 Soil Type in Province Albay................................................................. IV- 38 Table IV 1.2 Agriculture and Non-Agricultural Mineral Resources in Province Albay .................................................................................................... IV- 39 Table IV 1.3 Land Classification by Usage in Albay Province, 1996....................... IV- 40 Table IV 1.4 Number and Are of Farms by Size and Tenure: 1971-1991 in Province Alay................................................................. IV- 41 Table IV 1.5 Number and Area of Farms by Tenure: Crops (1991) Province Albay............................................................... IV- 42 Table IV 1.6 Number and Area of Farms by Tenure, City / Municipality: 1991 in Province Albay........................................................................ IV- 43 Table IV 1.7 Permanent Settlement and Farming Activities between 6km and 10km PDZ ............................................................................................ IV- 44 Table IV 1.8 Barangays Vulnerable to Hazard from Future Eruption of Mayon Volcano, Situated father than 10km from the Summit ......................... IV- 46 Table IV 1.9 Area of Protection Land and NPAAD/NAAD Land in Province Albay .................................................................................................... IV- 47 Table IV 1.10 Sufficiency Level in the Province of Albay (1998).............................. IV- 48 List of Figures Page Figure IV1.1 Municipality Profile ............................................................................. IV- 49 ii SUPPORTING REPORT (I) – IV LAND USE PLANNING 1. PRESENT SITUATION 1.1 Natural Feature (1) Topographic Feature The Albay Province, referring to the Provincial Physical Framework Plan/Comprehensive Provincial Land Use Plan – Province of Albay 1993-2002, has a total land area of 255,257 hectares (ha), or 2,552.6km2. Oas is the largest municipality, covers 27,130ha, which is 10.63% of the provincial total, while Malilipot , the smallest, has 5,360 ha, 2.10% of the provincial total. The Study Area is 1,442.3km2, which is 51.6% of Albay Province. The province has a total coast length of 354km, broken down as follows : eastern coastline : 153km, western coastline : 55km, Cagraray : 45km, San Miguel : 19km, Batan : 47km, and Rapu-rapu : 35km. The Albay Province is defined by mountainous terrain and rolling plains and valleys with elevation changing from 500 to 1,000 m. Its interior plains are dissected by rivers of the Yawa, Quinale, Talisay, Cabiogan, and Nasisi, as the major ones. Several springs and creeks also abound the area which provide sources for irrigation. The area of 6km from the crater of Mayon volcano is almost all occupied by the tropical grass and wood and brushwood. The coconut field is circling over the hillside and skirts area between 6km and 10km around Mayon volcano, which is considerably fertile. The palay field surrounds that coconut area and the west part of it is stretching toward the Lake Bato, which has the lowest elevation and, is flat in this area, average 8% slope and 100m elevation. Another coconut belt is surrounding the palay field in the south area of the province, which shapes another hilly land forms toward the south. These areas have the elevation from 100 to 500 meters with a slope limit of 18%. Almost half of Albay is hilly lands. Being indebted to the Mayon Volcano, the land of the Province of Albay, especially the Study Area, has been enriched and grown fertile. This rich land has done its favor for maintaining this area as the production land, irrigated rice/cultivated annual crops, freshwater and brackishwater fishpond, forestland used for the forestry plantation, perennial trees, vine crops and pastures. These agricultural pastoral scene are found in all the municipalities, even in Legazpi City, with the breathtaking view of Mayon Volcano in its backgraound. Volcanic ashes and mudflows from Mt. Mayon periodically enrich the soil. The soil type varies from clay to sandy loam and silty loam. IV - 1 (2) Soil and Natural Resources Volcanic ashes and mudflows from Mayon volcano, with types varying from clay to sandy roam and silt loam, periodically enrich the soil. (Table IV 1.1) Minerals for agricultural and non-agricultural use were found to be abundant in Albay, though the mining activities have not practically attracted much attention. (Table IV 1.2) Mining area is sparsely distributed in some parts but prevalent in Cagraray Island in the municipality of Bacacay. Bountiful source of raw construction materials was found elsewhere in the area. Limestone, marl, siliceous materials suitable for cement manufacturing are very common in Guinobatan, Pioduran, Oas, Ligao, Camalig and Jovella area. Deposits of guano at Oas, Ligao and Camalig particularly in Hoyop-Hoyopan cave and Calabidongan cave has been actively exploited for fertilizer use. Soft limestone at Guinobatan is used to correct soil acidity. Voluminous deposit of white clay used extensively in making valuable ceramics was found in the northeastern part of the province, while clay to be mostly used for industrial was found abundantly. The marble deposits in Bacacay which are estimated to last for a hundred years are being mined/extracted. However, being both a tourism and industrial zone, the extraction of marble requires a special permit. Another mineral deposit is coal. This is the first mineral resource extracted in the province specifically in Batan, Rapu-apu. In fact some areas are suffering from soil erosion because of poor land management. These resources play an important part in the development of the province and also contributes to the economic recovery if proper and wide utilization/exploitation will be employed. Concerning the Study Area, some perlite south of City of Legazpi is the only mineral that is actively excavated. Perlite has the usage as the lightweight aggregates in concrete mix, abrasives and similar use in industry, and to improve the poor structure of clayey soils over the agricultural fields. The amount of perlite has not been surveyed precisely yet due to the lack of drilling skill. It is, however, estimated about 636,500km3. IV - 2 1.2 Current Land Use Land Classfication of the Study Area (1996) ⑨2.9% ⑩1.4% ⑧6.6% ⑪1.4% ⑦0.3% ⑥1.6% ⑤9.7% ④1.0% ③0.6% ②9.0% ①65.4% Legend ① Agriculture ② Forest Area ③ Fishpond ④ Commercial & Industrial ⑤ Idle & Vacant ⑥ Water Ways & Road ⑦ Research ⑧ Residential ⑨ Parks ⑩ School ⑪ Unclassified Source: The Provincial Profile-Province of Albay 1996 The Census of Agriculture 1991-National Statistics Office According to the Provincial Agricultural Profile-Province of Albay 1996 and the Census of Agriculture 1991- National Statistics Office, agricultural land use is dominant in the Study Area, which is 65.4% of the total area of Province of Albay, followed by 9.7% of idle & vacant, 9.0% of forest area and 6.6% of residential. The agricultural land in the Study Area is 65.4% out of