1) phosphorus fractions
磷素形态
1.
Forms and vertical distribution of phosphorus in a vegetable field soil in northern part of Henan Province we re studied by the method of phosphorus fractions r ecommended by Jiang and Gu.
采用顾益初无机磷分级方法研究了豫北代表性土类——褐土上多年棚龄菜园土磷素形态及其空间分布特性。
3) P configurations and transformation
磷素形态与转化
4) Fractionation of phosphorous form
磷素形态分级
5) phosphorus form
磷形态
1.
Inorganic phosphorus(IP) is found to be the major phosphorus form of TP and its content ranges from 88.
通过采用七步连续萃取法对库布齐沙漠恩格贝沙样磷形态的分析,揭示了恩格贝沙样中磷的各种存在形态及含量分布。
2.
A Sequential extraction procedure was used for the extraction of the vertical of phosphorus form in the sediment of the Fuzhou West Lake.
两个柱状沉积物垂向各层中闭蓄态磷含量很低,说明沉积物中自然来源的磷很少,主要以人为输入为主,垂向各层磷形态和含量的不同,反映了不同时期和不同程度的人为输入磷的污染。
3.
The variation of phosphorus forms in treated sediment samples was analyzed,the results showed that adding red mud can facilitate the Fe/Al-P in sediment translating to the Ca-P(Pearson correlation analysis,r=-0.
利用烧结法赤泥中富含Ca、Fe等金属元素的氧化物而具有吸附性的特点,通过室内模拟研究赤泥投加对沉积物中各种磷形态含量及分布比例的影响,进而探讨利用赤泥控制沉积物中磷释放的可行性。
6) phosphorus fractions
磷形态
1.
The relationships among phosphorus fractions,organic matter and particle constitutes were also discussed.
不同湖区沉积物磷形态的垂向分布规律不同,总体上TP,无机磷(IP),铁铝结合态磷(Fe/Al-P)表现出在表层富集的现象,钙结合态磷(Ca-P)和有机磷(OP)随深度的变化不大;w(OM)自表层向下逐渐降低。
2.
Transformation among different phosphorus fractions in the sediments was studied to analyze the distinguished effect.
利用CaO2进行底泥修复,在实验室模拟条件下,研究了2种不同的CaO2投加方式(混匀和覆盖)上覆水活性磷酸盐(SRP)的变化趋势,并通过底泥磷形态之间的转变来分析其不同效果的原因。
3.
By measuring phosphorus fractions in sediments and phosphorus release rate, the distri-bution of phosphorus fractions and the relationship between the phosphorus forms and phosphorus concentrations in the water col-umn were analyzed.
以珠海6座典型中小型供水水库为研究对象,通过对水库沉积物中磷形态和释放速率的测定,分析这些水库沉积物中磷形态特征和释放速率及它们与水体磷的关系,了解库容和调水对沉积物中磷形态特点和释放速率的影响。
补充资料：土壤氮素形态
土壤氮素形态
forms of soil nitrogen
这一比率在90%左右，随着土层深度的加深，比率迅速降低.土城中一部分有机态氮与无机态氮之间主要通过矿化一生物固持作用而相互变化. (朱岁匕良茶贵信)土族氮素形态(forms of 5011 ni‘rogen)土坡中含氮物质的化学结合形式和存在状态，分有机态氮和无机态氮两大类。有机态氮为与碳结合的含氮物质.无机态氮为未与碳结合的含氮物质.有机态氮占土城全氮的比率，主要决定于有机态氮与无机态氮中的粘土矿物固定态按态氮的相对含t，在表层土坡中，
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条