自然与人为干扰对四湖地区涝渍生态系统的影响

Effects of Natural and Human-caused Disturbance on Waterlogging Land Ecosystem in Four-lakes Region

自然与人为干扰共同作用于四湖地区的涝渍生态环境。自然干扰因子包括地质构造运动、气候及水文改变等,人为干扰因子主要是指农业政策、人口压力、水利工程及环境污染等。在自然干扰条件下涝渍低洼地呈现出有规律的演变,而不合理的人为干扰程度直接决定了涝渍生态系统的退化程度。

The ecological environment of waterlogging land in Four-lakes Region was influenced both by natural and human-caused disturbance factors. Natural disturbance factors included tectonization, climate, hydrological change and so forth.Human-caused disturbance factors included agricultural policies, population pressure, water conservancy, environmental pollution and so on. Under natural disturbance conditions, the waterlogging bottomland presents regular change, however, the degree of immoderate human-caused di...