The shadow of the world's future, or The earth's population possibilities & the consequences of the present rate of increase of the earth's inhabitants

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Monograph

Identifikator:: 1775636852

URN:: urn:nbn:de:zbw-retromon-164018

Document type:: Monograph

Author:: Knibbs, George Handley http://d-nb.info/gnd/1045010944

Title:: The shadow of the world's future, or The earth's population possibilities & the consequences of the present rate of increase of the earth's inhabitants

Place of publication:: London

Publisher:: Ernest Benn Limited

Year of publication:: (1928)

Scope:: 131 Seiten

Digitisation:: 2021

Collection:: Economics Books

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Document type:: Monograph

Structure type:: Chapter

Title:: Chapter IV. The world's cereal and food-corps and its mineral needs

Collection:: Economics Books

CHAPTER IV THE WORLD’S CEREAL AND FOOD-CROPS AND ITS MINERAL NEEDS In order to get something like an accurate idea of the possible extent available of the world’s surface, for the growth of the cereals and food-crops required to meet its inhabitants’ needs, we note that if the land- areas of the whole world, of Japan, and of the United States be compared, we get the following significant facts, viz.:—For the whole earth 31-2 per cent. is actually productive in some way; for the United States, 27-8 per cent., which may ultimately be raised to as much as 42-0 per cent.; and for Japan, 78-3 per cent. The land classed as arable, however, is only 9-98 per cent. for the whole world; 18-39 per cent. for Japan; and as existing in the United States at present 15-17 per cent., which however might possibly be increased to say about 24 per cent. as an ultimate limit. The actual areas utilised for the growth of cereals and food-crops are, however, less than this. For different countries they are, as one would expect, very different proportions of the whole, ranging from less than one in a thousand to over 43 per cent. Thus in many cases the proportion actually cultivated for cereals and food-crops is much greater than the world-average of the land classed as arable. The following table will give a more definite idea of the great range in the proportions devoted solely to the cultivation of cereals and food-crops:—

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