湿地花粉含量与入湖营养盐之关系研究

近年来由于工农业污染物和生活污水排放量不断增加以及人类对湖泊湿地环境的破坏,湖泊污染和富营养化问题日趋严重。通过对长江中游湖泊——龙感湖中心沉积物中湿地花粉与入湖营养盐关系的研究,发现湿地植被的破坏是入湖营养盐增加的重要原因。由于人类活动对湿地的破坏,减弱了湿地的生态功能,加速了湖泊生态环境的恶化。

Approaches to the Relationship between the Content of Wetland Pollen and Lake Nutrient State in Sediments of Longgan Lake in the Middle and Lower Reaches of the Yangze River

As a result of rapid development of social economy in some areas in last few decades, lake ecology has been destroyed by the industrial waste water and domestic waste water around the lake catchment, and the lake water environment pollution and lake eutrophication is very serious. The studies based on the relationship between wet pollen and lake nutrient state in sediments from a core of central Longgan Lake located in the boundary between Hubei and Anhui province show that the degeneration of wetland vegetation caused the land nutrient discharges by human activities around the lake catchment and the lake nutrient enriched relatively. Human activities have destroyed the wetland in the area of Longgan Lake, weaken the ecology function of wetland, and accelerated the deterioration of lake ecology.