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盐分累积
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  salt accumulation
     Characteristics of soil salt accumulation in plastic greenhouse and its control measures
     大棚土壤盐分累积特征与调控措施研究
短句来源
     Changes of salt accumulation in soil layers with different landforms in Manas River Valley in Xinjiang Region of China
     新疆玛纳斯河流域不同地貌类型土壤盐分累积变化
短句来源
     SALT ACCUMULATION IN THE SOILS OF SUNG-NUN PLAIN,NORTHEASTERN CHINA
     东北松嫩平原盐渍土的盐分累积
短句来源
     Evolution of Salt Accumulation in Greenhouse Soil in Liaoning Province
     辽宁设施栽培土壤盐分累积变化规律研究
短句来源
     By analyzing physical and chemical properties of different media formula before and after subirrigation with Sonneveld nutrient solution, it was found that pH values tended to 5 and EC values increased a lots as a result of salt accumulation in media at a closed system of hydroponics;
     土壤的理化分析和植物体分析结果表明,营养液灌溉处理后基质的pH值基本相同,但EC值的增幅很大,是由封闭系统内营养液中盐分累积所致;
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  “盐分累积”译为未确定词的双语例句
     The Research on the Greenhouse Soil Salt Status of Gao Cheng City in He Bei Province
     河北省藁城市大棚土壤盐分累积状况研究
短句来源
     (2) the total solid salts (TDS) in the soil layer of 0~60 cm, after the second irrigation, increased by 28.5% and 72.3% respectively, compared with rainfed agriculture. Meanwhile, TDS were largely cumulated above 40 cm due to serious water depletion by physiological and ecological demand, in the condition of less precipitation.
     (2)微咸水补充灌溉二次后,60cm土体盐分累积比雨养种植处理(不灌溉)增加了28 5%和72 3%,随着作物的生理耗水和生态耗水作用的加强,土壤盐分随水分的蒸发而主要积累于40cm以上的土层,季节性降雨使土壤盐分下降,雨量偏小或季节性干旱,土壤盐分仍然存在于上层土体。
短句来源
     Salts Accumulation in the Soil Under Equipped Vegetable Cultivation and Its Regulation
     蔬菜设施栽培土壤的盐分累积及其调控
短句来源
     The main reasons caused the accumulation of soil salt and nutrients are the special environment condition of greenhouse and the surfeit use of fertilizer.
     日光温室特殊的环境条件以及过量施用化肥是土壤盐分累积和养分富集的主要原因。
短句来源
     The Accumulation of Installing Soil Soluble Salts and Nutrients in Shanxi Province
     设施土壤养分和盐分累积状况研究
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  相似匹配句对
     The Accumulation of Installing Soil Soluble Salts and Nutrients in Shanxi Province
     设施土壤养分和盐分累积状况研究
短句来源
     Nutrient State and Characteristics of Accumulation and Translocation of Salt in Greenhouse Soil Profiles
     设施土壤养分状况及盐分累积、迁移特征
短句来源
     RESEARCH ON CUMULATIVE ENVIRONMENTALIMPACT ASSESSMENT
     累积环境影响评价研究
短句来源
     The culumative mode of advertising
     广告累积模型
短句来源
     Determination of Salt Remains on Deposit
     镀层残留盐分的测定
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  salt accumulation
Salt accumulation is usually found in clayey interlayers.
      
Eolian factor in the process of modern salt accumulation in western Dzungaria, China
      
Salt accumulation and its control on the plains of Central Asia
      
Groundwater salt accumulation (or loss) was less than 1 kg/m3/month.
      
The new oasis has been the areas of salt accumulation because of the artificial irrigation, the salt content in soil is higher than that in old oasis, so some cultivated fields here had to be thrown out because of the serious secondary salinization.
      
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he modelling studies have been qualitatively carried out on the movement of waterborne salt through different stratified structures of the sediment of oxidative ponds in a salinized Xiaoqinghe area during dry seasons by using simulated soil columns in laboratory. The results show that the homogenous earth of original sediment has a high ability to transport water and is prone to allow water to be evaporated,making the waterborne salt to be carried up and largely accumulated on the surface of pond bottom. The...

he modelling studies have been qualitatively carried out on the movement of waterborne salt through different stratified structures of the sediment of oxidative ponds in a salinized Xiaoqinghe area during dry seasons by using simulated soil columns in laboratory. The results show that the homogenous earth of original sediment has a high ability to transport water and is prone to allow water to be evaporated,making the waterborne salt to be carried up and largely accumulated on the surface of pond bottom. The maximum suction head to maintain such a waterborne salt movement was found to be 120 cm water column pressure. However ,a 30 cm thick clay layer artificially covered on the top surface of the original sediment shows a strong suppression against the waterborne salt movement even if the suction head is over 800 cm water column prissure. No salt content was found to be accumulated on the surface during a 3 month period of simulated evaporation.

利用实验室士柱模拟装置对枯水条件下盐渍地区氧化塘不同底质土壤结构的水盐运移状况进行了定性模拟研究。结果表明,原底质均质白汤土输水能力较大,蒸发较易发生,因而带动盐分在塘底表面大量累积,维持该水盐运移的最大吸力值为120cm水柱。而经人工改造后,表层有30cm粘土覆盖的土壤层结构对水盐运移有强烈的抑制作用,在模拟3个月的蒸发时间内表面没有盐分累积

A simulated experiment was conducted to de-termine the role of wastewater dixcharged from an amino-acidfactory in improving the characteristics of purple dryland soil. The results, which were consisted with the field investigationand analysis, showed that nitrogen and organic matter con-tents in the soil had been considerably increased;soil moisturecondition had been improved and water loss rate from the soilhad been decreased after the input of the wastewater. Howev-er,the negative effects as the accumulation...

A simulated experiment was conducted to de-termine the role of wastewater dixcharged from an amino-acidfactory in improving the characteristics of purple dryland soil. The results, which were consisted with the field investigationand analysis, showed that nitrogen and organic matter con-tents in the soil had been considerably increased;soil moisturecondition had been improved and water loss rate from the soilhad been decreased after the input of the wastewater. Howev-er,the negative effects as the accumulation of Cl iron and salt,increasing activity of the Cu,Zn,Mn,Pb and other heavy tnet-als were also observed in the experiment. These results werefurther confirmed with field investigation and sample analysis.

模拟试验表明,氨基酸厂废水可以在一定程度上促进旱坡地紫色土某些生态因子的改善,主要表现在该废水可以增加土壤氮素和有机质含量,改善土壤水分状况,降低土壤失水速率和极限失水率,但也存在氯、盐分的累积,以及铜、锌、锰、铅等重金属元素活性加强等危险,这些结果已从现场调查及采样分析中得到验证。

ffects of irrigation water

本文研究了灌溉水质对土壤水盐动态和牧草生长的影响。灌溉水含盐量分别为100、1500和3000mg/L,设有6个试验处理。在高含盐水灌溉期间,盐分在土壤剖面中累积,低含盐水灌溉和冬季降雨期间部分土壤盐分被淋洗。由于盐分累积与淋洗反复进行,以及弱透水层的存在,可溶盐在60—90cn1土层明显增加,土壤溶液钠吸附比(SAR)随灌溉水含盐量增加而增高,牧草茎叶中的盐分亦随之而变化。当灌溉水含盐量达到1500mg/L时,牧草产量不受影响,灌溉水含盐量3000mg/L时在不同试验处理条件下仅仅减产9%至17%,显然,灌溉管理及盐分控制措施起着一定的调节作用。

 
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