水生生物学报Issue(4)：651-656,6.DOI:10.7541/2014.92
底栖藻类对消落带土壤中各形态磷的影响
INFLUENCE OF BENTIC ALGAE ON THE PHOSPHORUS FRACTIONS IN SOILS IN WATER-LEVEL-FLUCTUATING ZONE
摘要
Abstract
To study the effects of benthic algae on the phosphorus (P) fractions in the submerged soils in wa-ter-level-fluctuating zone of the Three Gorges Reservoir (TGR), simulated experiments were conducted under indoor conditions. The results indicated that benthic algae utilized more AI-P compared with other forms of P, and the growth of the algal was inversely related to the AI-P content that the Al-P content decreased when the conditions were suitable for algal growth. Moreover, benthic algae variously affected the iron-phosphorus (Fe-P) in different layer of soil. Ben-thic algae had the greatest effects on Fe-P on 2-4 cm layer. In addition, the contents of O-P and Ca-P in different soil depths showed no significantly changes. In the late period of this experiment, the contents of Fe-P, O-P and Ca-P all showed a declining trend whereas Al-P showed a sign of increasing. Impoundment of TGR and benthic algae biofilm significantly increased P availability in the submerged soil and enhanced the transformation of inorganic-P into more soluble fractions.关键词
底栖藻类/消落带/土壤/磷形态Key words
Benthic algae/Water-level-fluctuating zone/Soil/Phosphorus fractions分类
生物科学引用本文复制引用
张浪,李双双,李敦海..底栖藻类对消落带土壤中各形态磷的影响[J].水生生物学报,2014,(4):651-656,6.基金项目
国家水污染治理重大专项(2012ZX07103003-02)资助 （2012ZX07103003-02）
