干旱区农业在我国西北地区经济、社会发展中占有重要地位,但近几十年来在其发展中遇到越来越严峻的挑战,主要表现为干旱缺水、环境......

Physical geography is the cornerstone of geography. In this article, the starting points of disciplines in physical geog......

This paper analyzes the features and trends of urbanization away from home in Anhui Province,and believes that the cross......

Rapid urbanization has triggered large rural population floating into cities, which in turn affects rural human-land rel......