若尔盖高原沼泽湿地萎缩退化要因初探

Principal Factors in Retrogression of the Zoige Plateau Marsh Wet Land

自然因素——地质构造运动和气候温湿条件的变化是造成若尔盖高原沼泽湿地萎缩退化的主导因素,人为因素——超载过牧和对湿地进行开渠排水是其次要因素。由于主导因素和次要因素长期共同作用的结果,使若尔盖高原沼泽湿地呈现明显的萎缩退化趋势。

Strong neotectonism and warm and damp climate as natural factors, secondly, excessive development as an-thropic factor are responsible for retrogression of the Zoige Plateau marsh wet land. Combination of the natural factors with the an thropic factor speeds up trend of the retrogression.