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1998

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	Louis-Albert Lake	1篇
	Mandiaye Thiobane	1篇
	Marie-Josée Tousignant	1篇
	Marne Demba Thiam	1篇

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Science et changements planétaires / Sécheresse

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环境科学理论

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法文

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法国

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1.This text is a part of a global research programme, on the contraints of rural management, and particularly the problems caused by drought which, since the middle of this century, has been cyclic. This approach helps to determine the present configuration of rural areas in the northern part of Senegal. Taking a unit of 8 km x 6 km, attempt at monitoring have been carried out using visual methods by photointerpretation or photoanalysis and automatic detection by classification of on October 1994 Spot image produced using PCI software. The findings are an attempt to understand the movements of rural areas while being attentive to the fact that formely cultivated surfaces have been drastically reduced nowadays. This fact can be accounted for by increasingly persistent drought. To this is added a population migration which should be better understood, and which follows a particular trend leading to an area where water is not a problem, particularly the lake of Guiers or the valley of the Senegal river where rice and sugar cane are grown.

作　　者：Marne Demba Thiam ;Louis-Albert Lake ;Mandiaye Thiobane 等

出　　处：Science et changements planétaires / Sécheresse. 1998 ;8(4):257-263.

出版社：John Libbey Eurotext

文章 ID：97383814

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