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Studies on bio-production and water cleaning by floating culture plants

浮式养殖装置的生物生产和水体净化研究

基本信息

批准号：
06454051
负责人：
WAICHI Agata
金额：
$ 4.67万
依托单位：
Kyusyu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06454051/
关键词：
Floating culture Water cleaning Canna indica L.Cyperus alternifolish L.Eutrophication Photosynthesis Growth analysis Biomass 破生組織イネコムギ COD 水質基準 NO_3-N

项目摘要

19941.Standard basic technology of floating culture system was examined and established from the view point of raft material, raft size, planting method, kind and amount of fertilizer.2.It was made clear that the most suitable plant for floating culture was Canna indica L.and Cyperus alternifolis L.among 30 spesies tested. The both plants produced remarkably high biomass as compared to other plants. The weight of nitrogen absorbed by plant from the water in pool was higher than that of supploed from fertilizer.NO3-N,NH4-N,total P and COD concentration of the water in pool on whererice and wheet plants were grown with floating culture were lower than those of the non-planted pool (control).1995Biomass production and water cleaning of Canna and Cyperus grown with floating culture were examined in comparison with soil culture plants. Growth analysis and photosynthesis of Canna were also compared with both culture. Ferther, the morphological feature of root in several plants grown with bot … More h culture was compared.1.Biomass production of floating cultured both plants, Canna and Cyperus were remarkably higher than that of soil cultured them. These values in floating culture were 4 times and 5 times in Canna and Cyperus, respectly. Especially, Canna absorbed actively phosphorus and pottassium. Therefore, theis plant will become eliminator of both elements.2.High biomass production in floating culture of Canna depended on large leaf area production and net assimilation rate (NAR). HIgh NAR was due to high photosynthetic rate (Pn) of the plant. Further high Pn caused by high ability of leaf conductance and mesophhyll conductance which representas CO_2 fixzation effeciency in chloroplast of mesophyll cell.3.From the microphotograph of the cross section of root some plant species grown with floating and soil culture. More formation of lysigenous aerenchyma was cobserved in roots of floating cultureplants compared to soil culture plants. However, there was species difference of the formation. There was high correlation between formation of lysigenous aerenchyma and specific weight of root. Less

19941.从筏板材料、筏板尺寸、栽植方式、施肥种类和施肥量等方面对漂浮栽培系统的基本技术进行了标准化研究。2.在30种供试植物中，美人蕉和风车草是最适合漂浮栽培的植物。与其他植物相比，这两种植物产生了非常高的生物量。植物从池水中吸收的氮素量大于从肥料中吸收的氮素量，NO3-N、NH 4-N、种植水稻和小麦的漂浮养殖池水体的总磷和COD浓度均低于对照池1995年，研究了漂浮栽培美人蕉和莎草的生物量生产和水净化，并与土壤栽培植物进行了比较。对美人蕉的生长分析和光合作用进行了比较。Father，几种植物根的形态特征， ...更多信息 1.美人蕉和莎草属植物漂浮栽培的生物量显著高于土培。在漂浮培养中，美人蕉和莎草的上述值分别是其4倍和5倍。美人蕉对磷和钾的吸收尤为活跃。美人蕉漂浮栽培的高生物量生产依赖于大的叶面积生产和净同化率。高NAR是由于植株的高光合速率（Pn）所致。3.从漂浮栽培和土培栽培的植物根系横切面的显微照片看，叶片和叶肉细胞具有较高的电导率，表现为叶绿体的CO_2固定效率。与土培植物相比，漂浮栽培植物根中溶生通气组织的形成更多。但其形态存在种间差异。溶生通气组织的形成与根的比重有很高的相关性。少