酸性土

对于地质条件相近的土壤，由于本身的pH值不同，铝的溶出量差别很大，一般而言，酸性土铝的溶出量高于碱性土。

The amount of aluminum leaching for acidic soil is much larger than that for alkaline soil .

总的来说沈阳西郊地区土壤的有机质含量范围在0.91-3.76%之间，属中下水平：土壤pH值范围在4.81-6.70之间，以酸性土为主；

Generally speaking the Shenyang western suburbs area soil organic content is 0.91-3.76 % equally , is on the level ; The soil pH value is 4.81-6.70 equally , by acid soil primarily ;

2钾细菌能使40%酸性土样中的Zn元素发生轻度活化，其余酸性及中性土样中的Zn元素固定；

The silicate bacteria could make zine element dissolve slightly in 40 % of the acid soil samples . Zine element in the other acid and neutral soil samples had been fixed .

其提取率（提取C占有机质C总量%）：酸性土（高山草甸型和湿润森林型土壤）高于以钙质土为主的碱性土。

The extraction ratio , which meant the percentages that extracted C occupied the whole quantities of soil organic carbon , was : acid soils ( soil of Dark felty soils , felty soils and wet forest soils ) alkaline soils which was mainly consisted of calcium soils .

得到了当降雨pH<6.0时，酸性土或弱酸性土中铝溶量和时间呈指数关系，以及影响铝溶出因素主要是酸雨的pH值、土壤的缓冲能力和环境温度等结论。

The results indicated that the amount of aluminium leached from acid or slight acid soils by solution with pH below 6.0 was exponential function of time and that the main factors influencing aluminium leaching were pH of leaching solution , buffer capacity of soils and the temperature .

区系种类组成丰富，地理成分复杂，酸性土植物优势明显，珍稀濒危植物和特有成分较多。

There are many rare species , complicated geographical composition and the plants in acid soil there .

糖厂的石灰沉渣，在改良酸性土结构上，要比石灰石粉有更良好的影响。

Sugar-factory lime sludge had a more favorable influence in improving the structure of acid soils than limestone .

分布区主要为黄壤类酸性土，伴生树种主要为马尾松。

The distribution area is mainly the acid yellow soil , and associated species is mainly masson 's pine .

结果表明，3种菜园土以酸性土上莴笋适应性最好，中性土次之，微酸性土生长最差。

Lettuce was shown to be most adaptable to acid vegetable soil , followed in sequence by neutral soil and slightly acid soil .

在石灰岩土上有分布的50种，酸性土上有分布的130种。

50 species are distributed on limestone , 130 species are distributed on acidic soil . Floral component is complex with tropical nature of community .

我国土壤中酸性土面积大而种类多，酸性土总面积在2亿hm~2以上。

There are large areas and many kinds of acid soil in our country . The total areas amount to more than two hundred million hm2 .

从江西、云南、北京采集的10份酸性土样中分离出嗜酸放线菌252株，其绝大部分为链霉菌。

Acidophilic actinomycetes were isolated from 10 acidic soil samples collected in Jiangxi Province , Yunnan Province and Beijing . About 90 % of them were streptomycetes .

实验中，从江西、云南、北京采集的10份酸性土样，采用分散和差速离心法和常规分离方法分离出嗜酸放线菌252株。

In this study , 252 acidophilic actinomycetes were isolated from 10 acidic soil samples collected in Jiangxi Province , Yunnan Province and Beijing with dispersion and differential centrifugation approach .

而生长于不同酸碱性土壤上的盾叶薯蓣薯蓣皂苷元含量差异很大，最高为中性土，其次为酸性土，最低为碱性土。

There was obvious difference in different PH soil . The content of diosgenin was the highest in neutral soil , higher in acid soil , lowest in alkali soil .

土壤有机质中活性腐殖质一般占30%～45%，以酸性土中的比例较大。

Generally , the percentage of active humus of soil OM was from 30 % to 45 % , and it was comparatively higher in acid soils than in alkaline soils .

土壤样品都是酸性土或则呈微酸性，有机质、氮、磷、钾对缬草优势度的影响不是很明显，都在0.1以下。

The soil samples are acidic or weaker acidic . The affects of organic matter , nitrogen , phosphorus , potassium to the dominance of valeriana officinalis are not significant which are below 0.1.The are positive correlation with the soil PH value .

明确了四川盆地南部的酸性土区是主要病区，其次是江河沿岸的老冲积黄壤和新冲积潮沙土区，尚未发现石灰性紫色土上有花生青枯病。

The acid soil area in south of the Sichuan Basin was the major occurring area , the second was the old yellow alluvial soil and the new sandy alluvial soil . Until now , no blight was found to occur in the purple soil area .

在特定时期，施用硅肥可以提高酸性水稻土Eh，降低弱碱性和碱性水稻土的Eh。而施用葡萄糖具有降低土壤Eh的作用。

The Eh of soil is decreased by application of glucose .

在一定pH条件下，石灰性紫色土、中性紫色土、酸性紫色土对同种重金属离子的吸附强度依次降低，与其表面电荷密度的大小相一致；

With a certain pH , the three soils absorbed the same heavy metal with strength in the order of calcareous purplish soils > neutral > acidic , which is in line with the order in surface charge density ;

通过四川酸性紫色土、中性紫色土，石灰性紫色土中不同浓度的Cd、Cu、Pb、As对水稻根系过氧化物酶的影响研究，揭示了过氧化物酶受抑制与产生抗性的过程。

The influences of Cd , Cu , Pb and As on peroxidase of rice roots in violet soils of acidic , neutral and alkaline were studied and it was shown that the peroxidase underwent the processes of inhibition and producing resistance .

以酸性紫色土（pH值5.45），粘黄壤（pH值4.99）和砂岩黄壤（pH值4.30）为供试土壤，利用盆栽试验比较分析了6个紫花苜蓿品种的生长表现。

Three types of acid soils : acid purple soil ( pH value 5.45 ), acid clay yellow soil ( pH value 4.99 ), and acid sandy yellow soil ( pH value 4.30 ), were used in a pot experiment to study the growth of 6 types of Medicago sativa .

本文研究了Bowman-Cole土壤有机磷有效性分组法应用于酸性水稻土所存在的若干问题。

Some problems concerning fractionation of organic phosphorus in acid paddy soils using the Bowman-Cole method were studied and a modified sequential fractionation scheme was proposed .

磷肥在不同磷素水平酸性水稻土中生物有效性研究DNP-MSBR工艺中反硝化除磷效果的影响因素分析

Bio-availability of phosphorus fertilizers in acid paddy soils with different P status . The Affecting Study of the Denitrifying Phosphorus Removal Efficiency in the DNP-MSBR Process

结果表明：湖南省酸性旱土耕作层有机磷总量为165.3±78.4mg·kg-1，占土壤全磷含量的23%左右。

Results showed that the total organic P in plough layer of acid upland soil in Hunan Province was 165.5 ± 78.4mg · kg-1 , which takes about 23 percent of the contents of total P . In the total contents of organic P forms .

酸性紫色土上紫花苜蓿的结瘤性能与养分吸收

Nutrients absorption and nodulation ability of alfalfas in acid purple soil

酸性菜园土养分状况的温网室研究

A greenhouse study of the nutrient status of acid vegetable soils

强酸性泥炭土常呈现低钙。

Strongly acid peat soils are often low in calcium .

酸性水稻土有机磷分组法的探讨

On the fractionation of organic phosphorus in acid paddy soil

酸性水稻土有效硒提取剂的比较研究

Comparative studies on available Se extractants for acid paddy soils

广东省酸性水稻土磷的解吸与吸附的关系

Relationship between Phosphorus Desorption and Adsorption of Acid Paddy Soils in Guangdong Province