【摘要】 水资源缺乏是限制半干旱地区农业生产和农村社会经济发展的关键因素，一种崭新而有益的尝试——集水农业的实施使这一困扰了几代人的问题出现了转机，显示出了较好的效益。更多还原

【Abstract】 Lack of water resources is the key factor limiting agricnlture and rural economy in semiarid areas.Collecting water,a new effective attempt,brings about a favorable turn for tackling the problem that has puzzled several generations,and has displayed better benefits.更多还原