pedalfern.

Brit.

/pᵻˈdalfə/, U.S.

/pəˈdælfər/

Origin: A borrowing from Latin, combined with English elements. Etymons: pedo- comb. form², aluminium n., Latin ferrum.

Etymology: < pedo- comb. form² + al- (in aluminium n.) + fer- (in classical Latin ferrum iron: see ferro- comb. form).

Soil Science.

A soil in which there is no layer of accumulated calcium carbonate, but in which oxides of iron and aluminium have tended to accumulate (usually acidic and characteristic of humid climates). Cf. pedocal n.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > earth or soil > kind of earth or soil > [noun] > other soils

white earth1448

Chiltern?1530

light land1589

deads1653

rosil1691

moorland1753

prairie soil1817

residuum1828

rendzina1905

podzol1908

solonetz1924

solod1925

solonchak1925

pedalfer1928

pedocal1928

skeletal soil1932

peloid1933

sierozem1934

planosol1938

lithosol1939

regosol1949

andosol1958

Alfisol1960

Aridisol1960

Histosol1960

Spodosol1960

Andisol1978

1928 C. F. Marbut in Proc. & Papers 1st Internat. Congr. Soil Sci. 4 20 A formal definition of the two groups is as follows: I. Includes all soils in whose maturely developed profiles no higher percentage of lime carbonate is found than in the parent material beneath them and in which either a shifting or an accumulation of sesquioxide and in many cases both, has taken place... The name Pedalfers is suggested as a designation for the soils of group I, and Pedocals for those of group II.

1930 L. A. Wolfanger Major Soil Div. of U.S. iv. 100 The agriculture of the pedalfers is characterized by its wealth in crop variety and its extended development of crop centers.

1972 C. B. Hunt Geol. Soils viii. 167 The significant feature of pedalfers is that moisture is sufficient to wet the soil to its capacity..and to allow excess water to..remove the soluble constituents.

2002 Oecologia 132 332 Values [for leaf ¹³C content] are dramatically depleted at sites that receive more than 550 mm mean annual precipitation, roughly the boundary (pedalfer–pedocal) at which soils commonly fill to field capacity in summer and carbonates are leached.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	pedalfer
释义	pedalfern. Brit. /pᵻˈdalfə/, U.S. /pəˈdælfər/ Origin: A borrowing from Latin, combined with English elements. Etymons: pedo- comb. form², aluminium n., Latin ferrum. Etymology: < pedo- comb. form² + al- (in aluminium n.) + fer- (in classical Latin ferrum iron: see ferro- comb. form). Soil Science. A soil in which there is no layer of accumulated calcium carbonate, but in which oxides of iron and aluminium have tended to accumulate (usually acidic and characteristic of humid climates). Cf. pedocal n. ΘΚΠ the world > the earth > structure of the earth > constituent materials > earth or soil > kind of earth or soil > [noun] > other soils white earth1448 Chiltern?1530 light land1589 deads1653 rosil1691 moorland1753 prairie soil1817 residuum1828 rendzina1905 podzol1908 solonetz1924 solod1925 solonchak1925 pedalfer1928 pedocal1928 skeletal soil1932 peloid1933 sierozem1934 planosol1938 lithosol1939 regosol1949 andosol1958 Alfisol1960 Aridisol1960 Histosol1960 Spodosol1960 Andisol1978 1928 C. F. Marbut in Proc. & Papers 1st Internat. Congr. Soil Sci. 4 20 A formal definition of the two groups is as follows: I. Includes all soils in whose maturely developed profiles no higher percentage of lime carbonate is found than in the parent material beneath them and in which either a shifting or an accumulation of sesquioxide and in many cases both, has taken place... The name Pedalfers is suggested as a designation for the soils of group I, and Pedocals for those of group II. 1930 L. A. Wolfanger Major Soil Div. of U.S. iv. 100 The agriculture of the pedalfers is characterized by its wealth in crop variety and its extended development of crop centers. 1972 C. B. Hunt Geol. Soils viii. 167 The significant feature of pedalfers is that moisture is sufficient to wet the soil to its capacity..and to allow excess water to..remove the soluble constituents. 2002 Oecologia 132 332 Values [for leaf ¹³C content] are dramatically depleted at sites that receive more than 550 mm mean annual precipitation, roughly the boundary (pedalfer–pedocal) at which soils commonly fill to field capacity in summer and carbonates are leached. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1928
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