常德地区水葫芦发生规律的研究

Study on the occurrence pattern of Eichhornia crassipes in Changde

水葫芦Eichhornia crassipes在我国南方地区已泛滥成灾,为了找出对其更加经济、合理的防治措施,对湖南常德地区穿紫河和池塘内水葫芦的发生规律进行了调查研究。结果表明:水葫芦的生长量主要集中在6-9月中旬,其生长状况与气候条件、水体条件等有密切的关系;水葫芦的生长量与水体污染程度有关,水体污染严重的穿紫河内水葫芦生长量高于水体轻度污染的池塘内水葫芦生长量。

Scince Eichhornia crassipes has been a disaster in southern China,its occurrence pattern in Chuanzihe River was studied for finding the reasonable and economical control techniques.The result indicated that the main biomass was got from June to mid September and affected by the climate and water conditions,it was also affected by the water pollution level because its biomass in heavily polluted Chuanzihe River was higher than that in lightly polluted pools.