Ylig series
Description
Soil Texture: The surface layer has dark brown clay with moderate fine subangular blocky structure. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Inarajan, Merizo, Santa Rita, Talofofo, Umatac |
Habitat and Land Use: This soil is suitable for fruit production such as watermelon and pineapple. Paspalum species, a number of forbs such as Buttonweed, Ground orchid, False verbena, Bahiagrass, Townsville stylo, and Centro are suitable in this type of soil. It is also well suited to pond construction. If adequate fertilizer and lime are used, napiergrass or guineagrass is suitable. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Yigo series
Description
Soil Texture: The surface layer has dark reddish brown silty clay with moderate very fine granular structure, very friable. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Dededo, Malojloj, Mangilao, Yigo |
Habitat and Land Use: Fruit trees are suitable for this soil type and the dominant forest trees that thrive in it include Tangantangangan, Mapunao, Nunu, Faniok, Faia, Lagundi, Chopak, Yoga, and Pisonia. Subdominant trees are Kafu, Pahong, Paipai, Fadang, Fago, and Macaranga thompsonii. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Togcha series
Description
Soil Texture: The surface layer has dark reddish brown silty clay with moderate very fine granular structure. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Inarajan, Merizo, Santa Rita, Talofofo, Umatac |
Habitat and Land Use: Watermelon and pineapple is best suited for this type of soil. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Shioya series
Description
Soil Texture: Dark brown loamy sand with few very fine very dark grayish brown pockets, single grain. Soil Classification: Loamy Sand Click Here to See Soil Classification Diagram Where Found: Hagåtña |
Habitat and Land Use: In this type of soil, the forest species are tolerant of salinity such as Gago, Binalo, Pahong, Hunek, Nonak, Putting, Panao, Niyog, Talisai, Da’og, and Ifil.Tangantangan also grows in disturbed areas of this soil type. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Saipan series
Description
Soil Texture: Dark reddish brown silty clay with weak medium subangular blocky structure. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Barrigada, Chalan Pago-Ordot, Ipan, Malojloj, Mongmong-Toto-Maite, Sinajana, Yona |
Habitat and Land Use: Watermelon is suitable with this soil. Dominant forest trees suitable with this soil type include Tangantangangan, Mapunao, Nunu, Faniok, Faia, Lagundi, Chopak, Yoga, and Pisonia. Subdominant trees are Kafu, Pahong, Paipai, Fadang, Fago, and Macaranga thompsonii. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Ritidian series
Description
Soil Texture: The surface layer has dark reddish brown extremely cobbly clay loam with strong medium granular structure. Soil Classification: Clay Loam Click Here to See Soil Classification Diagram Where Found: Dededo, Mangilao, Yigo |
Habitat and Land Use: The dominant forest trees suited with this soil type include Tangantangangan, Mapunao, Nunu, Faniok, Faia, Lagundi, Chopak, Yoga, and Pisonia. Subdominant trees include Kafu, Pahong, Paipai, Fadang, Fago, and Macaranga thompsonii. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Pulantat series
Description
Soil Texture: The surface layer has very dark grayish brown silty clay with strong fine and medium granular structure. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Agana Heights, Asan, Barrigada, Chalan Pago-Ordot, Dededo, Hagåtña, Ipan, Malojloj, Mangilao, Mongmong-Toto-Maite, Piti, Santa Rita, Sinajana, Talofofo, Tamuning, Yigo, Yona |
Habitat and Land Use: Foxtail, guineagrass, and Tangantangan, which is a nutritious forage plant are suitable in this type of soil. Shallow-rooted vegetables can also be planted during the rainy season since it is more feasible to farm at this time of the year. The dominant forest trees suited with this soil type include Tangantangangan, Mapunao, Nunu, Faniok, Faia, Lagundi, Chopak, Yoga, and Pisonia. Subdominant trees include Kafu, Pahong, Paipai, Fadang, Fago, and Macaranga thompsonii. Palma brava also appears to spread in this type of soil. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Kagman series
Description
Soil Texture: The surface layer has dark brown clay with moderate fine subangular blocky structure and friable. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Barrigada, Mangilao, Talofofo, Yona |
Habitat and Land Use: Foxtail, guineagrass, and Tangantangan, which is a nutritious forage plant, are suitable in this soil. Watermelon can also be planted in this type of soil. The dominant forest trees compatible with this soil include Tangantangangan, Mapunao, Nunu, Faniok, Faia, Lagundi, Chopak, Yoga, and Pisonia. Subdominant trees are Kafu, Pahong, Paipai, Fadang, Fago, and Macaranga thompsonii. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Inarajan series
Description
Soil Texture: The surface layer has dark gray clay with many fine red mottles and moderate medium subangular blocky structure. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Agat, Chalan Pago-Ordot, Merizo, Piti, Talofofo, Umatac |
Habitat and Land Use: It is suitable for fruit production such as banana and watermelon. During rainy season, removal of excess water with ditches and subsurface drains could significantly lengthen the cropping season. The dominant species found in this soil type are water-tolerant grasses such as paragrass, guineagrass, and Paspallum species. These are palatable grasses that provide excellent high protein forage for cattle, goats, and carabao. Tangantangan also provides browse and shade. Adapted legumes are feasible such as Desmodium intortum. This soil is restricted to tree species that can tolerate intermittent flooding and wetness such as Pago, Screw pine, Langasat, and Ifil. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Guam series
Description
Soil Texture: It is cobbly clay loam with moderate very fine granular structure and crumbles easily when dry. Soil Classification: Clay Loam Click Here to See Soil Classification Diagram Where Found: Agana Heights, Agat, Barrigada, Dededo, Hagåtña, Mangilao, Merizo, Mongmong-Toto-Maite, Piti, Santa Rita, Sinajana, Tamuning, Umatac, Yigo |
Habitat and Land Use: This soil is dominated by foxtail which provides high quality palatable forage. Agricultural crops such as tomato, eggplant, and bell pepper are best suited with this type of soil. The dominant forest trees include Tangantangangan, Mapunao, Nunu, Faniok, Faia, Lagundi, Chopak, Yoga, and Pisonia. Subdominant trees include Kafu, Pahong, Paipai, Fadang, Fago, and Macaranga thompsonii. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Chacha series
Description
Soil Texture: The surface layer is dark brown clay with moderate medium subangular blocky structure parting to strong fine subangular blocky. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Barrigada, Dededo, Malojloj, Mangilao, Tamuning, Yigo |
Habitat and Land Use: Foxtail, guineagrass, and Tangantangan, which is a nutritious forage plant are suitable in this soil. Watermelon is also best suited in this type of soil. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Atate series
Description
Soil Texture: The surface layer is dark reddish brown silty clay with moderate very fine granular structure. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Agat, Asan, Inarajan |
Habitat and Land Use: It is used as wildlife habitat and watershed, for grazing purposes, subsistence and commercial farming, homesite and recreational development. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Akina series
- Akina Landscape
- Akina Pedon
- Akina Profile
Description
Soil Texture: The surface layer is dry with moderate fine granular structure. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Agat, Asan, Inarajan, Merizo, Santa Rita, Talofofo, Umatac, Yigo |
Habitat and Land Use: These soils are mainly used for wildlife habitat and watershed. Watermelon and pineapple are also suited in this type of soil and tree species that are compatible include Gago, Pago, Screw pine, Betel nut, Da’og, Chosga, Ilang-ilang, and Langasat. Ifil is also of commercial value used for hand-carved furniture and handicrafts. Palma brava also appears to spread in this type of soil. |
Soil Health
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016
Agfayan series
Description
Soil Texture: The surface layer is dry with black clay and has strong fine granular structure. Soil Classification: Silty Clay Click Here to See Soil Classification Diagram Where Found: Agat, Asan, Inarajan, Merizo, Santa Rita, Talofofo, Umatac |
Habitat and Land Use: The use of this soil as wildlife habitat and watershed can be enhanced by protecting the soil from wildfires and by planting adapted trees. |
Soil Health
Acidity | Water Permeability/Runoff | Fertility and Management |
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Content Sources: USDA Soil Conservation Service Soil Survey of Territory of Guam, SoilWeb: An Online Soil Survey Browser
Other sources of information on Guam Soils: WERI Watershed Atlas
Date of Update: February 16, 2016