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- Ecological effect of exotic Cd-Zn compound pollution on purple soil. 紫色土Zn、Cd复合污染生态效应研究
- Therefore, the critical value of tolerance to Cl~--concentration of cotton on neutral purple soil may be about 800 ppm. 因此,中性紫色土棉花施氯临界值为800ppm。
- The difference of fertility level of the main purple soil , rice soil and yellow soil is bigg. 主要土壤类型紫色土、水稻土、和黄壤,肥力水平差异较大,全量、有效态含量在不同土壤类型不一致。
- The results are of significance to soil and water conservation in purple soil area. 研究结果对川中紫色土丘陵区生态环境建设有重要参考意义。
- The average removal rate of COD_Mn, SS and the colour of the wastewater is 77.8%, 75.9% and 82.6% in the purple soil, and 96.0%, 86.5% and 97.0% in the red soil. 废水的COD_(Mn)、SS和色度的平均去除率在紫色土壤中是77.;8%25、75
- Vicia fabas that were put in acid purple soil and alkaline purple were irrigated with 200 times solution of chitosan and 400 times solution of chitosan. 结果表明:经壳聚糖溶液处理的蚕豆植株其盛花期根瘤数量明显多于空白;
- Pot experiments and fields investigation were conducted to study crops(wheat,lettuce,tomato and cabbage) effects and mechanisms under Cd-Zn compound pollution in purple soil. 采用盆栽试验结合野外调查，研究紫色土锌镉复合污染对莴笋、蕃茄、甘兰、小麦等的作物效应与原因。
- A field experiment was carried out in hilly area of central Sichuan Basin to study the characteristics of phosphorus loss by runoff from slope cropland in purple soil. 通过对川中丘陵不同施肥试验田径流、泥沙和磷素流失的观测与测定分析,研究了暴雨下平衡施肥对紫色土坡耕地水土流失与土壤磷素随径流流失的特征。
- The statistic results showed that the content of organic matter was raked as cultivated land>woodland>garden, and paddy soil>red soil> purple soil> skel soil. 结果表明：在有机质含量的分布上，耕地＞林地＞园地，水稻土＞红壤＞紫色土＞粗骨土；
- A brief review on Ynating agro-ecological station of purple soil, Chinese Academy of Sciences was given to introduce its 20 years' researching and observation on agro-ecosystem. 简要回顾了中国科学院盐亭紫色土农业生态试验站建站20年来的研究、观测及数据积累。
- Pot experiments and fields investigation were conducted to study crops( wheat, lettuce, tomato and cabbage) effects and mechanisms under Cd-Zn compound pollution in purple soil. 采用盆栽试验结合野外调查，研究紫色土锌镉复合污染对莴笋、茄、兰、麦等的作物效应与原因。
- Interflow is an important component of the flow on slopes with purple soil, and is determined comprehensively by rainfall, slope feature, soil depth and cultivation regime. 摘要壤中流是紫色土坡面流的重要组成部分和表现形式，它受雨强、坡度、土层厚度、耕作方式等多种因素的综合影响。
- Yellow soil, purple soil and calcareous soil are the main soil types in Jigong Mountain area in the south in Chongqing and also the representative soil types in Sichuan Basin. 黄壤、紫色土、石灰土是重庆市南面鸡公山的主要土壤,也是四川盆地具有代表性的土类。
- The effect of nitrogen fertilizer kind and dose on nitrogen migration, leaching loss and nitrogen utilization rate by rice in purple soil was studied in percolating pools. 摘要 利用养分渗漏池研究了紫色土中氮肥品种、用量对氮素移动、淋失和水稻氮肥利用率的影响。
- The distribution feature is that in calico purple soil rice and corn are short of zinc,in acid arenaceous soil wheat is short of molybdenum,in gravel yellow soil cole and orange are short of boron,in gles tide soil wheat is short of manganese. 分布特征是钙质紫色土水稻、玉米缺锌 ,酸性砂质土小麦缺钼 ,砾质黄壤油菜、柑桔缺硼 ,潜育化潮土小麦缺锰。
- So the DCD was applied at various concentrations in different soils. The concentration of DCD mixed with AB was 0.5% in Purple soil, and it was 0.3% in Grey alluvial and Yellow soil. 同时提出DCD在3种土壤上的适宜添加量;紫色土上为普通碳铵施入量的0.;5%25;黄壤和灰潮土上为0
- Effects of fertilizers application on winter wheat root growth, grain yield and quality were studied on the National Purple Soil Fertility and Fertilizer Efficiency Monitored Base. 摘要在国家紫色土肥力与肥料效益监测基地长期定位试验社区上，研究了不同施肥对冬小麦根系生长、产量品质的影响。
- In order to reveal their position and function to improve and develop the purple soil, this paper investigates soil animals from 7 habitats of the purple soil in the district of Hengyang. 摘要为了揭示土壤动物在紫色土壤改良和发育进程中的地位和作用，对衡阳地区紫色土壤7种生境中的土壤动物进行了调查。
- The delay made the patient go purple in the face. 时间的拖延使病人脸色发紫。
- Long term observation and comparative research were conducted in watershed of Yanting agro-ecological station of purple soil of CAS to analyze land use change and environmental effects. 通过长期的观测数据分析与土地利用现状的对比,研究四川盆地中部丘陵盐亭紫色土农业生态试验站集水区的土地利用变化及其环境效应。
