【摘要】 着重分析了影响半湿润地区山东禹城沙地农业发展中的不稳定因素,对沙地水分、气候波动因素以及在沙地治理过程中所出现的次生盐渍化等进行了较深入的研究,指出只要采取适当措施,建立稳定的沙地农业生态系统,就能防止或减少这些不稳定因素对新垦沙地农业发展的危害,使沙地农业持续发展,并提出了相关措施。更多还原

【Abstract】 Factors of water and climatic fluctuation as well as the secondary salinization problems existing in the sandy land development in Yucheng were analysed and studied.The results showed that if suitable measures applied and stable sandy land agricultural ecological system established, the harm cursed by the unstable factors to the new cultivated land can be reduced or prohibited, and the sustainable agricultural development can be achived.更多还原