湖北农业科学
湖北農業科學
호북농업과학
Hubei Agricultural Sciences
2015年
17期
4151-4155
,共5页
外源硫酸盐%磷形态%湖泊水
外源硫痠鹽%燐形態%湖泊水
외원류산염%린형태%호박수
external sulfate%forms of phosphorus%lake water
采用室内模拟试验,选取孝感市春晖湖与槐荫湖的表层沉积物和相应上覆水,研究加入外源硫酸盐对上覆水磷含量和形态变化的影响。结果表明,外源硫酸盐可以促进上覆水中总磷(TP)、溶解态无机磷(SIP)、总溶解性磷(TSP)含量和pH增加,随着培养时间的延长上覆水中总磷(TP)、溶解态无机磷(SIP)、总溶解性磷(TSP)的含量均有先升后降的趋势,TP、TSP含量分别在第14、20天达到最大值,然后逐渐下降。两湖泊的上覆水中溶解性磷(TSP)占较大比例,且以溶解态有机磷(SOP)为主要存在形式,颗粒磷(PP)含量较低。 pH的增大可以促进沉积物中磷的释放,主要通过增强厌氧菌的活性加速含磷有机物的分解来提高总溶解性磷含量。
採用室內模擬試驗,選取孝感市春暉湖與槐蔭湖的錶層沉積物和相應上覆水,研究加入外源硫痠鹽對上覆水燐含量和形態變化的影響。結果錶明,外源硫痠鹽可以促進上覆水中總燐(TP)、溶解態無機燐(SIP)、總溶解性燐(TSP)含量和pH增加,隨著培養時間的延長上覆水中總燐(TP)、溶解態無機燐(SIP)、總溶解性燐(TSP)的含量均有先升後降的趨勢,TP、TSP含量分彆在第14、20天達到最大值,然後逐漸下降。兩湖泊的上覆水中溶解性燐(TSP)佔較大比例,且以溶解態有機燐(SOP)為主要存在形式,顆粒燐(PP)含量較低。 pH的增大可以促進沉積物中燐的釋放,主要通過增彊厭氧菌的活性加速含燐有機物的分解來提高總溶解性燐含量。
채용실내모의시험,선취효감시춘휘호여괴음호적표층침적물화상응상복수,연구가입외원류산염대상복수린함량화형태변화적영향。결과표명,외원류산염가이촉진상복수중총린(TP)、용해태무궤린(SIP)、총용해성린(TSP)함량화pH증가,수착배양시간적연장상복수중총린(TP)、용해태무궤린(SIP)、총용해성린(TSP)적함량균유선승후강적추세,TP、TSP함량분별재제14、20천체도최대치,연후축점하강。량호박적상복수중용해성린(TSP)점교대비례,차이용해태유궤린(SOP)위주요존재형식,과립린(PP)함량교저。 pH적증대가이촉진침적물중린적석방,주요통과증강염양균적활성가속함린유궤물적분해래제고총용해성린함량。
The response of phosphorus form and content in lake water from Chunhui Lake and Huaiyin Lake in Xiaogan to the input of sulfate was investigated based on the indoor simulation experiments. It showed that sulfate input improved the concentrations of total phosphorus (TP), soluble inorganic phosphorus (SIP), total soluble phosphorus (TSP) and pH in the overlying water. As the prolong of time in overlying water total phosphorus (TP) and solved inorganic phosphorus (SIP), the content of total soluble phosphorus (TSP) showed tendency to ascend, followed to descend. Content of TP and TSP peaked in the 14th and 20th days respectively. Overlying water total soluble phosphorus (TSP) of two lakes accounted for large propor-tion, especially solved organic phosphorus (SOP) as the main existence form in TSP. The content of particulate phosphorus (PP) was low. The increase of pH could promote the release of phosphorus in sediments, mainly by increasing the activity of anaerobic bacteria accelerated phosphorus decomposition of organic matter to improve total soluble phosphorus content.