Effective Cation-Exchange Capacity (ECEC)

Size: px

Start display at page:

Download "Effective Cation-Exchange Capacity (ECEC)"

Kristopher Gervais York
5 years ago
Views:

1A 2A 3A 4A name Fluvaquents-Udifluvents complex, 0 to 3, frequently flooded Geneseo silty clay loam, 0 to 3 Hemlock silty clay loam, 0 to 3 Naples Creek silty clay loam, 0 to 3 5A Wayland soils

1 1A 2A 3A 4A name Fluvaquents-Udifluvents complex, 0 to 3, frequently flooded Geneseo silty clay loam, 0 to 3 Hemlock silty clay loam, 0 to 3 Naples Creek silty clay loam, 0 to 3 5A Wayland soils complex, 0 to 3, frequently flooded 12D Rockrift channery silt loam, 15 to F Rock outcrop-arnot complex, 25 to D Cadosia channery silt loam, 15 to A Guyanoga channery silt loam, fan, 0 to B Guyanoga channery silt loam, fan, 3 to A Almond channery silt loam, 0 to B Almond channery silt loam, 3 to C Almond channery silt loam, 8 to A 19A 20A 24A 24B 24C 24D Homer fine sandy loam, 0 to 3 Fine-loamy, mixed, active, mesic, Typic Argiaquolls, 0 to 3 Atherton and Fine-loamy, mixed, active, mesic, Typic Argiaquolls, 0 to 3 Howard gravelly loam, 0 to 3 Howard gravelly loam, 3 to 8 Howard gravelly loam, 8 to 15 Howard soils, 15 to 25 25A Chenango gravelly loam, 0 to B Chenango gravelly loam, 3 to C Chenango gravelly loam, 8 to D Chenango gravelly loam, 15 to E Chenango gravelly loam, 25 to B Chenango channery loam, fan, 3 to B Castile gravelly silt loam, 3 to A 31B 31C 31D 32A 32B 33A 33B 33C 33D 33E 34A 35A 35B Collamer silt loam, 0 to 3 Collamer silt loam, 3 to 8 Collamer silt loam, 8 to 15 Collamer silt loam, 15 to 25 Dunkirk fine sandy loam, 0 to 3 Dunkirk fine sandy loam, 3 to 8 Dunkirk silt loam, 0 to 3 Dunkirk silt loam, 3 to 8 Dunkirk silt loam, 8 to 15 Dunkirk silt loam, 15 to 25 Dunkirk silt loam, 25 to 35 Lakemont silty clay loam, 0 to 3 Odessa silt loam, 0 to 3 Odessa silty clay loam, 3 to 8 40 Page 1 of 7

2 36A 36B 36C 36D 36E 37A 37B 38A 38B 39A name Schoharie silty clay loam, 0 to 3 Schoharie silty clay loam, 3 to 8 Schoharie silty clay loam, 8 to 15 Schoharie silty clay loam, 15 to 25 Schoharie silty clay loam, 25 to 45 Schoharie silt loam, 0 to 3 Schoharie silt loam, 3 to 8 Niagara silt loam, 0 to 3 Niagara silt loam, 3 to 8 Rhinebeck silty clay loam, 0 to 3 41A Aeric Epiaquepts, 0 to A 44A 45A 46A 46B 48A 48B 48C 48D 49B 49D 49E 49F 50B 50C 50D 53A Canandaigua silt loam, 0 to 3 Canandaigua mucky silt loam, 0 to 3 Fonda mucky silt loam, 0 to 3 Galen fine sandy loam, 0 to 3 Galen fine sandy loam, 3 to 8 Arkport fine sandy loam, 0 to 3 Arkport fine sandy loam, 3 to 8 Arkport fine sandy loam, 8 to 15 Arkport fine sandy loam, 15 to 25 Arkport loamy fine sand, 3 to 8 Arkport loamy fine sand, 15 to 25 Arkport loamy fine sand, 25 to 35 Arkport loamy fine sand, 35 to 55 Dunkirk-Arkport complex, 3 to 8 Dunkirk-Arkport complex, 8 to 15 Dunkirk-Arkport complex, 15 to 25 Lamson fine sandy loam, 0 to 3 54A Lamson mucky fine sandy loam, 0 to 3 56A Elnora loamy fine sand, 0 to B Colonie loamy fine sand, 3 to C Colonie loamy fine sand, 8 to B Mardin channery silt loam, 3 to C Mardin channery silt loam, 8 to D Mardin channery silt loam, 15 to E Mardin channery silt loam, 25 to B 63C 63D 64B 66A Langford channery silt loam, 3 to 8 Langford channery silt loam, 8 to 15 pecent Langford channery silt loam, 15 to 25 Langford-Erie channery silt loams, 3 to 8 Lyons soils, 0 to 3 68A Volusia channery silt loam, 0 to B Volusia channery silt loam, 3 to Page 2 of 7

3 name 68C Volusia channery silt loam, 8 to D Volusia channery silt loam, 15 to A Erie channery silt loam, 0 to B Erie channery silt loam, 3 to C Erie channery silt loam, 8 to A Darien silt loam, 0 to B Darien silt loam, 3 to C Darien silt loam, 8 to A Darien-Ilion silt loams, 0 to B Darien-Ilion silt loams, 3 to B Gretor silt loam, 3 to C Gretor silt loam, 8 to D Gretor channery silt loam, 15 to B Orpark silt loam, 3 to C Orpark silt loam, 8 to D Orpark channery silt loam, 15 to A Chippewa silt loam, 0 to B Chippewa silt loam, 3 to B Manlius channery silt loam, 3 to C Manlius channery silt loam, 8 to D Manlius channery silt loam, 15 to A 92A 93A 94A 95A 101A 101B 101C 101D 101E 104A 104B 104C 106B 107B 108C 108D 108E 112B 112C 112D Palms muck, 0 to 3 Carlisle muck, 0 to 3 Edwards muck, 0 to 3 Martisco muck, 0 to 3 Saprists, 0 to 3, inundated Honeoye loam, 0 to 3 Honeoye loam, 3 to 8 Honeoye loam, 8 to 15 Honeoye loam, 15 to 25 Honeoye loam, 25 to 35 Honeoye loam, 0 to 3, lower clay surface Honeoye loam, 3 to 8, lower clay surface Honeoye loam, 8 to 15, lower clay surface Danley-Lansing complex, 3 to 8 Conesus-Lansing complex, 3 to 8 Lansing loam, 8 to 15 Lansing loam, 15 to 25 Lansing loam, 25 to 35 Ontario fine sandy loam, 3 to 8 Ontario fine sandy loam, 8 to 15 Ontario fine sandy loam, 15 to E Ontario fine sandy loam, 25 to Page 3 of 7

4 114B 114C 114D 116B 116C 116D name Ontario gravelly loam, 3 to 8 Ontario gravelly loam, 8 to 15 Ontario gravelly loam, 15 to 25 Ontario loam, 3 to 8 Ontario loam, 8 to 15 Ontario loam, 15 to F Ontario, Honeoye, and Lansing soils, 35 to E Palmyra and Howard soils, 25 to A 122B 124A 124B 126A 126B 126C 126D 128A 128B 128C 130A 130B 132A 132B 134A 134B Palmyra cobbly loam, 0 to 3 Palmyra cobbly loam, 3 to 8 Palmyra fine sandy loam, 0 to 3 Palmyra fine sandy loam, 3 to 8 Palmyra gravelly loam, 0 to 3 Palmyra gravelly loam, 3 to 8 Palmyra gravelly loam, 8 to 15 Palmyra gravelly loam, 15 to 25 Palmyra gravelly sandy loam, 0 to 3 Palmyra gravelly sandy loam, 3 to 8 Palmyra gravelly sandy loam, 8 to 15 Farmington loam, 0 to 3 Farmington loam, 3 to 8 Galoo loam, 0 to 3, rocky Galoo loam, 3 to 8, rocky Camillus silt loam, 0 to 3 Camillus silt loam, 3 to 8 151C Willdin-Norchip complex, 3 to B Valois gravelly loam, 3 to C Valois gravelly loam, 8 to D Valois gravelly loam, 15 to E Valois gravelly loam, 25 to B Valois gravelly loam, cool, 3 to C Valois gravelly loam, cool, 8 to D Valois gravelly loam, cool, 15 to E Valois gravelly loam, cool, 25 to B Willdin channery silt loam, 3 to C Willdin channery silt loam, 8 to D Willdin channery silt loam, 15 to A Ontusia channery silt loam, 0 to B Ontusia channery silt loam, 3 to C Ontusia channery silt loam, 8 to D Ontusia channery silt loam, 15 to C Lordstown-Manlius-Towerville complex, 8 to D Lordstown-Manlius-Towerville complex, 15 to 25, very stony Page 4 of 7

5 name 171E Lordstown-Manlius-Towerville complex, 25 to , extremely stony 171F Lordstown-Manlius-Towerville complex, 35 to , extremely stony 177A Norchip silt loam, 0 to B Norchip silt loam, 3 to B Mongaup-Ischua complex, 3 to C Mongaup-Ischua complex, 8 to D Mongaup-Ischua complex, 15 to 25, very stony 181E Mongaup-Ischua complex, 25 to 35, extremely stony 182B Mongaup channery loam, 3 to C Mongaup channery loam, 8 to A 201B 201C 204A 204B 210A 210B 212A Lima loam, 0 to 3 Lima loam, 3 to 8 Lima loam, 8 to 15 Lima loam, 0 to 3, lower clay surface Lima loam, 3 to 8, lower clay surface Phelps gravelly silt loam, 0 to 3 Phelps gravelly silt loam, 3 to 8 Nuhi silt loam, 0 to 3 240B Aurora-Angola silt loams, 3 to C Aurora-Angola silt loams, 8 to D Aurora-Angola silt loams, 15 to B 241C 241D 255B 255C 255D 260B 260C Aurora silt loam, 3 to 8 Aurora silt loam, 8 to 15 Aurora silt loam, 15 to 25 Cazenovia silt loam, 3 to 8 Cazenovia silt loam, 8 to 15 Cazenovia silt loam, 15 to 25 Cayuga silt loam, 3 to 8 Cayuga silt loam, 8 to D Cayuga silt loam, 15 to A 304B Kendaia loam, 0 to 3 Kendaia loam, 3 to 8 342A Angola silt loam, 0 to A 356B 357B 357C 400A Ovid silt loam, 0 to 3 Ovid silt loam, 3 to 8 Ovid silty clay loam, 3 to 8 Ovid silty clay loam, 8 to 15 Udorthents, loamy, 0 to 3 401D Udorthents, refuse substratum. 0 to 25 PG Pits, gravel and sand 75 PQ Pits, quarry Page 5 of 7

6 Map name W Water Page 6 of 7

7 Options Attribute Name: Effective cation-exchange capacity refers to the sum of extractable cations plus aluminum expressed in terms of milliequivalents per 100 grams of soil. It is determined for soils that have ph of less than 5.5. Soils having a low cation-exchange capacity (CEC) hold fewer cations and may require more frequent applications of fertilizer than soils having a high cation-exchange capacity. The ability to retain cations reduces the hazard of ground-water pollution. Effective CEC is a measure of CEC that is particularly useful in areas where the ion-exchange capacity of the soil is largely a result of variable charge components, such as allophane, kaolinite, hydrous iron and aluminum oxides, and organic matter, which result in a CEC that is not a fixed number but a function of ph. For each soil layer, this attribute is actually recorded as three separate values in the database. A low value and a high value indicate the range of this attribute for the soil component. A "representative" value indicates the expected value of this attribute for the component. For this soil property, only the representative value is used. Aggregation is the process by which a set of component attribute values is reduced to a single value to represent the map unit as a whole. A map unit is typically composed of one or more "components". A component is either some type of soil or some nonsoil entity, e.g., rock outcrop. The components in the map unit name represent the major soils within a map unit delineation. Minor components make up the balance of the map unit. Great differences in soil properties can occur between map unit components and within short distances. Minor components may be very different from the major components. Such differences could significantly affect use and management of the map unit. Minor components may or may not be documented in the database. The results of aggregation do not reflect the presence or absence of limitations of the components which are not listed in the database. An on-site investigation is required to identify the location of individual map unit components. For each of a map unit's components, a corresponding composition is recorded. A composition of 60 indicates that the corresponding component typically makes up approximately 60% of the map unit. Percent composition is a critical factor in some, but not all, aggregation methods. For the attribute being aggregated, the first step of the aggregation process is to derive one attribute value for each of a map unit's components. From this set of component attributes, the next step of the aggregation process derives a single value that represents the map unit as a whole. Once a single value for each map unit is derived, a thematic map for soil map units can be generated. Aggregation must be done because, on any soil map, map units are delineated but components are not. The aggregation method "Dominant Component" returns the attribute value associated with the component with the highest composition in the map unit. If more than one component shares the highest composition, the corresponding "tie-break" rule determines which value should be returned. The "tie-break" rule indicates whether the lower or higher attribute value should be returned in the case of a composition tie. The result returned by this aggregation method may or may not represent the dominant condition throughout the map unit. The tie-break rule indicates which value should be selected from a set of multiple candidate values, or which value should be selected in the event of a composition tie. This option indicates that a null value for a component should be converted to zero before aggregation occurs. This will be done only if a map unit has at least one component where this value is not null. Page 7 of 7

Cation-Exchange Capacity (CEC-7)

Cation-Exchange Capacity (CEC-7) name 1A Fluvaquents-Udifluvents complex, 0 to 3 4.5 45, frequently flooded 2A Geneseo silty clay loam, 0 to 3 9.4 90 3A Hemlock silty clay loam, 0 to 3 11.9 90 4A Naples Creek silty clay loam, 0 to 3 14.3