洮儿河中下游流域湿地景观演变及驱动力分析

应用景观生态学理论,分析了1986,1996,2000年洮儿河中下游流域湿地景观的演变过程,探讨了湿地的数量消长、转化和湿地景观格局特征的变化趋势以及湿地景观演化的驱动力因素,指出十几年来湿地景观数量、分布总体呈明显下降趋势,湿地主体由自然湿地向人工湿地转变,水文因素是湿地景观演变的直接驱动力,自然因素和人为因素以不同强度和方式影响湿地的演化。

Characteristics and Driving Forces of Wetland Changes in Middle-Lower Rreaches of Taoer River

Based on the theory of landscape ecology, it analyses the processes of wetland changes in middle-lower reaches of Taoer river between the year of 1986, 1996, 2000, and discusses the characteristic of wetland change in its quantity and wetland landscape pattern's dynamic, the driving forces also. It pointes that wetland represents apparently declining trend in quantity and scope in recently ten years over, with natural wetland's transformation to artificial. Hydrological factor is direct cause of wetland's change, and natural and artificial factors affect it by different intension and manner.