NEW DEFINITIONS FOR MOISTURE RECYCLING AND THE RELATIONSHIP WITH LAND-USE CHANGES IN THE SAHEL

被引：134

作者：

SAVENIJE, HHG

机构：

[1] International Institute for Infrastructural, Hydraulic and Environmental Engineering (IHE), 2601 DA Delft

来源：

JOURNAL OF HYDROLOGY | 1995年 / 167卷 / 1-4期

关键词：

D O I：

10.1016/0022-1694(94)02632-L

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In the Sahel, recycling of moisture through evapotranspiration appears to be responsible for more than 90% of the rainfall. As a result, there exists an important feedback mechanism between land-use and climate, which has immediate implications for the management of natural resources. The challenge is to find sustainable combinations of land-use and vegetation that maximize recycling of moisture, while at the same time allowing adequate agricultural production. In this paper, a theory of moisture recycling is presented including the derivation of moisture recycling indicators, one of which is based on the salinity of the rainfall. Subsequently, the theory is verified with observations of rainfall and runoff in the Sahel over the period 1950-1990.

引用

页码：57 / 78

页数：22

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