s—Sahel in West Africa is the most seriously desertified zone in the world. In this paper, the impact of climate on desertification in Sahel is discussed. The climate can exert an impact on desertific
This paper, by applying the theories of landscape ecology, illustrates the role and mechanism of windbreak system in the establishment and maintenance of oasis ecosystem on the basis of systematic ana
Relative straight channel of the middle and upper reaches of Ganjiang has been formed due to thecontraction of mountains and hills being composed of bedrocks on both banks of the river. But however, A