|
Перевод: erosion
[существительное] эрозия ; разъедание; разрушение; ссадина ; размывание; размыв ; вымывание; выветривание [существительное]
Тезаурус:
- The same economic and social conditions in the plains area might have led only to loss of soil fertility but not to wholesale soil erosion and environmental collapse.
- Agronomic techniques were developed rather later than mechanical ones, following the identification of the importance of rainsplash as a major element in the erosion process.
- Although population pressure is the most common attribute of these peasantries and pastoralists, there are many cases where declines in population through outmigration or apocalyptic disasters (e.g. Latin America during and after the Spanish Conquest, Boserup 1965: 62-;63) have led to a coarsening of agricultural technology, a labour-saving cropping pattern, and an allocation of labour which can encourage soil erosion (e.g. Bunyard 1980 for Palestine).
- Although the nineteenth century had seen almost all restrictions on Catholics removed, the loyalists of Ulster still believed that to accept the authority of the Pope was to open the way to papal domination and the erosion of civil liberty.
- Considerably more detail is given in Chapter 7, and only an outline of the major points as they contribute to understanding of this approach to soil erosion appears here.
- Then the immigrant purchases a large tract of land, and farms it without any expenditure on soil conservation, often without chemical or organic fertiliser, until yields have declined and degradation or erosion has set in.
- The African agriculturalist is no exception and is very tenacious of the customs and methods practised by his forefathers the poor farming methods and soil depleting practices prevalent among peasant cultivators stem from ignorance, custom and lethargy the main obstacle to overcome is the native's lack of understanding of the need for the prevention of soil erosion.
- It claims that developing the single isomer form of conventional drugs is a good way for such companies to minimise erosion of their market share by generic drug manufacturers by effectively extending patent protection for the product.
- These processes, too, are subject to political and economic analyses and are often intimately bound up with land-users who are responsible for accelerated soil erosion.
- One of the major problems of building a theory of soil erosion is the high degree of contingency which always accompanies any explanation of soil erosion at a particular place.
- The case studies by Rapp, Berry and Temple (1973) which were referred to earlier in this chapter also illustrate all the major reasons for failure of conservation in Tanganyika and post-colonial Tanzania - technical incompetence and incompatibility with existing agricultural practice has already been mentioned - also attempts at coercion of peasants to build erosion works (p. 1 17, 250), and a lack of participation, with an excess of petty restrictions (p. 251).
- Erosion may be very considerable, but, because the area of net measurement of soil movement is large, sedimentation may occur within the same unit and therefore net erosion is estimated to be small (see also Blandford 1981).
- Several communities in Texas use piles of trees as the base for dunes to fight beach erosion.
|
|
|