Richard J Huggett | The University of Manchester (original) (raw)

Uploads

Papers by Richard J Huggett

The whole range of tropical climates is found in Sudan , tram !rue desert with no rainy month, to... more The whole range of tropical climates is found in Sudan , tram !rue desert with no rainy month, to the wet tropical type of the southern frontier with a dry season of only three or four months. Generally the climate is of the continental type in which the diurnal variation of temperature often exceeds 15°C. ln the south of the country the highest temperatures occur in March and April : at the higher latitudes to the north the highest temperatures are delayed to May to July. Outside the southern provinces maximum temperatures often exceed 40°C (Figure 1). North of the 16th parallel and in the mountainous areas the winter nights are cool. Rain fall is highly seasonal and is governed by the northward advance of the monsoonal Intertropical Convergence Zone. The rainfall pattern is unimodal, the peak reaching a maximum in July and August. Several natural, and traditionally described, climatic zones can be distinguished ,

The use of general descriptive names, registered names, trademarks, etc. in this publication does... more The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use.

Routledge eBooks, Jul 4, 2013

Fundamentals of Geomorphology, 2013

Routledge eBooks, Nov 30, 2022

Routledge eBooks, Jan 4, 2002

Routledge eBooks, Nov 30, 2022

eLS, Oct 17, 2011

... almost endemic: the pocket gophers (Geomyidae) live in North America, Central America and nor... more ... almost endemic: the pocket gophers (Geomyidae) live in North America, Central America and northern Colombia; and the kangaroo rats and ... Good delineated six major floral regions, though he styled them 'kingdoms': the Boreal region, the Palaeotropical region, the Neotropical ...

Routledge eBooks, Nov 30, 2022

Routledge eBooks, Oct 27, 2018

In 1786, Horace Benedict de Saussure wrote in his Voyages dans les Alpes (Vol. iv, p. 208) that c... more In 1786, Horace Benedict de Saussure wrote in his Voyages dans les Alpes (Vol. iv, p. 208) that climatic factors are responsible for the existence of differing organic matter levels in soils. A fuller appreciation of the climatic factor in soil formation has been attributed to Johann Christian Hundeshagen who, in his Forstliche Berichte und Miscellen (1830–32), mentioned that the climatic forces —water, heat, light, and oxygen—must act in unison to create a productive soil (Joffe 1949, p. 12). G.C.L. Krause, in his Bodenkunde und Klassifikation des Bodens (1832), correlated soil productivity with climatic factors. The importance of climate in understanding rock weathering and soil formation was clearly appreciated by Karl Sprengel. Writing in his Die Bodenkunde oder Lehre vom Boden, nebst einer vollstandigen Anleitung zur chemischen Analyse der Ackererde (1844), Sprengel explained how native rocks are decomposed by water, oxygen, carbon dioxide of the air, heat and cold, vegetation, and electricity. He realized as well that soil properties vary under different climates: warm climates produce soils better suited to plant growth than do cold climates because warmer environments favour a greater production of ammonia and nitrates in the process of organic decay; all organic bodies decay more slowly in cold climates than in warm climates and so manure remains in the soils of cold environments much longer; and although cold climate soils contain more organic matter, they yield less well than warm climate soils, chiefly owing to the relative brevity of the growing season.

The whole range of tropical climates is found in Sudan , tram !rue desert with no rainy month, to... more The whole range of tropical climates is found in Sudan , tram !rue desert with no rainy month, to the wet tropical type of the southern frontier with a dry season of only three or four months. Generally the climate is of the continental type in which the diurnal variation of temperature often exceeds 15°C. ln the south of the country the highest temperatures occur in March and April : at the higher latitudes to the north the highest temperatures are delayed to May to July. Outside the southern provinces maximum temperatures often exceed 40°C (Figure 1). North of the 16th parallel and in the mountainous areas the winter nights are cool. Rain fall is highly seasonal and is governed by the northward advance of the monsoonal Intertropical Convergence Zone. The rainfall pattern is unimodal, the peak reaching a maximum in July and August. Several natural, and traditionally described, climatic zones can be distinguished ,

The use of general descriptive names, registered names, trademarks, etc. in this publication does... more The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use.

Routledge eBooks, Jul 4, 2013

Fundamentals of Geomorphology, 2013

Routledge eBooks, Nov 30, 2022

Routledge eBooks, Jan 4, 2002

Routledge eBooks, Nov 30, 2022

eLS, Oct 17, 2011

... almost endemic: the pocket gophers (Geomyidae) live in North America, Central America and nor... more ... almost endemic: the pocket gophers (Geomyidae) live in North America, Central America and northern Colombia; and the kangaroo rats and ... Good delineated six major floral regions, though he styled them 'kingdoms': the Boreal region, the Palaeotropical region, the Neotropical ...

Routledge eBooks, Nov 30, 2022

Routledge eBooks, Oct 27, 2018

In 1786, Horace Benedict de Saussure wrote in his Voyages dans les Alpes (Vol. iv, p. 208) that c... more In 1786, Horace Benedict de Saussure wrote in his Voyages dans les Alpes (Vol. iv, p. 208) that climatic factors are responsible for the existence of differing organic matter levels in soils. A fuller appreciation of the climatic factor in soil formation has been attributed to Johann Christian Hundeshagen who, in his Forstliche Berichte und Miscellen (1830–32), mentioned that the climatic forces —water, heat, light, and oxygen—must act in unison to create a productive soil (Joffe 1949, p. 12). G.C.L. Krause, in his Bodenkunde und Klassifikation des Bodens (1832), correlated soil productivity with climatic factors. The importance of climate in understanding rock weathering and soil formation was clearly appreciated by Karl Sprengel. Writing in his Die Bodenkunde oder Lehre vom Boden, nebst einer vollstandigen Anleitung zur chemischen Analyse der Ackererde (1844), Sprengel explained how native rocks are decomposed by water, oxygen, carbon dioxide of the air, heat and cold, vegetation, and electricity. He realized as well that soil properties vary under different climates: warm climates produce soils better suited to plant growth than do cold climates because warmer environments favour a greater production of ammonia and nitrates in the process of organic decay; all organic bodies decay more slowly in cold climates than in warm climates and so manure remains in the soils of cold environments much longer; and although cold climate soils contain more organic matter, they yield less well than warm climate soils, chiefly owing to the relative brevity of the growing season.