历史时期中国绿洲的农业开发与生态环境变迁

绿洲农业是我国农业的一个重要组成部分。本文论述了历史时期我国绿洲农业开发的基本进程，分析了农业开发对生态环境的影响。认为政治、经济的稳定与强盛是绿洲开发的先决条件，战乱、不合理的开垦、利用以及对森林的滥伐和过渡放牧是造成绿洲沙漠化扩大的主要原因，人为因素和自然因素的叠加导致了绿洲生态环境的不断恶化。

Agricultural Exploitation and Change of Ecological Environment of Chinese Oases in History

Oasis agriculture is an important part of Chinese agriculture. This paper analyses the progress of Chinese oasis agriculture in history and the effect of agricultural exploitation to ecological environment. In the paper it is regarded thatthe steady politics and prosperous economic are the essential factors in oasis exploitation. War, unrational land exploitation, deforestation and excessive herding are the main factors of expansion of desertification of oasis. The interaction of man-made factor and natural factor leads to the worsen of ecological environment of oasis.