土壤阳离子交换量

  • 网络cec;cation exchange capacity
土壤阳离子交换量土壤阳离子交换量
  1. 土壤阳离子交换量在上海城市土壤质量评价中的应用

    Application of soil CEC to evaluation of soil quality in Shanghai

  2. 土壤阳离子交换量、活性铁、锰和有效锌含量均较高,符合一般作物的需要;

    CEC , active Fe , Mn , and available Zn were in high levels .

  3. K2C2O4-KCl法快速测定石灰性紫色土壤阳离子交换量

    Determination of cation exchange capacity in calcareous purple soil with the k_2c_2o_4-kcl double-quick exchange method

  4. 土壤阳离子交换量(CEC)及交换性Ca、Mg也都表现出相同的变化趋势。

    The cation exchange capacity ( CEC ), exchangeable Ca and exchangeable Mg had the same trend .

  5. 其影响因素主要有成土母质、粘土矿物组成、土壤阳离子交换量、pH值、有机质含量、碱解氮含量和土壤溶液中铵离子浓度等。

    The soil factors affecting the capacity of fixing-ammonium in tested soils were mainly parent material , soil clay composition , pH , CEC , organic matter , available N and concentration of NH4 + in soil .

  6. 相关分析说明,土壤阳离子交换量(CEC)及粘粒含量是影响吸附平衡时间、吸附平衡量的重要因素;

    Correlation analysis indicated that soil cation exchange capacity ( CEC ) and clay content were important factors that affected the time and the capacity of K + equilibrium adsorption ;

  7. 各处土壤阳离子交换量都处于10~20cmol(+)kg-1之间,属于保肥力中等的土壤,且果园>水田>大棚>露地。

    The cation exchange capacity of all the sites varied from 10 to 20 cmol ( + ) kg-1 , indicating that the fertility hold capacity of Jiading soils was moderate .

  8. 有机质与粘粒复合对土壤阳离子交换量的贡献

    Contribution of Organic Matter and Clay Complex to Cation Exchange Capacity in Soils

  9. 青海省土壤阳离子交换量与有机质和机械组成关系的研究

    Study On Relationship Between Organic Matter , Soil Fractions and CEC in Qinghai Soil

  10. 土壤阳离子交换量的变化与欧洲栎生长势的研究

    Study on the Response to Growing-power of the European Oak to the Change in Exchangeable Cation in Topsoil

  11. 而且,有机肥与化肥配施能提高土壤阳离子交换量,增强土壤有效氮磷钾营养元素的释放。

    In addition , the combination of organic manure and chemical fertilizer could increase soil cation exchange capacity , and enhance the release of soil available nitrogen , phosphorus and potassium .

  12. 再生水灌溉和清水+再生水交替灌溉提高了土壤的阳离子交换量(CEC)和总孔隙度,有利于土壤物理性状的改善。

    Irrigation by reclaimed water and fresh + reclaimed water increases Na ~ + , CEC , and total porosity of the turf soil in comparison to fresh water , and improves soil quality .

  13. 酸性土壤的阳离子交换量在熟化过程中是逐步增加的,而紫色土则是逐步减少。

    With the mellowing process , CEC of acid soils was increased and it was decreased in purple soil .

  14. 黄土高原小流域土壤pH、阳离子交换量和有机质分布特征

    Distribution characteristics of soil pH , CEC and organic matter in a small watershed of the Loess Plateau

  15. 主要结果如下:(1)种植年限对茶园土壤pH、阳离子交换量、有机C、全N、全P含量的影响均达到显著水平(P0.05)。

    The main results are as follows . ( 1 ) The pH value , caption exchange capacity , organic C , total N and total P content ( P0.05 ) in tea garden were significantly affected by planting years .

  16. 本文研究了鄂西天宝山、武当山、星斗山等山地土壤胶体的阳离子交换量(CEC)与其固相组成的关系。

    The cation exchange capacity of mountain soil colloid in western area of Hubei province and its relation to solid phase components were studied .

  17. 各试验区土壤pH值、阳离子交换量较对照无显著变化;土壤表层有机质、全氮、速效钾含量较对照显著增加;土壤速效磷含量显著增加。

    Compared with the control , soil pH and cation exchange capacity of each test area have no significant change , but available phosphorus increase significantly . Organic matter , total nitrogen , and available potassium in soil surface significantly increase compared with the control .

  18. 不锈钢尾渣的施用可提高土壤p11值、阳离子交换量和速效磷含量;降低速效钾含量;但对土壤有机质和全氮含量影响不显著。

    The application of stainless steel slag can increase soil pH , soil cation exchange capacity and available P content , but have no significant impact on soil organic matter and soil total nitrogen , but reduce available K content .

  19. 呈贡县蔬菜土壤有机质、阳离子交换量及分布特征研究

    Research on Organic Matter and Cationic Exchange Content of Soil Planting Vegetable in Chenggong County

  20. 土壤的缓冲性能与各土壤的阳离子交换量、有机质、粘粒矿物含量等理化性质有关。

    Buffering ability of soil to acid was related to the physical chemical properties of soil , such as CEC , organic matter and clay mineral content .

  21. 研究结果表明,钾肥利用率与作物收获后的土壤速效钾含量呈极显著的负相关,与土壤阳离子交换量(CEC)也呈显著的负相关。

    The correlation of the recovery rate of K fertilizer to soil available K after harvest was negative and very significant , and so was to soil cation exchange capacity ( CEC ) .

  22. 施用不锈钢尾渣能显著提高土壤和淋溶液pH值、有机质及土壤总团聚体;而对土壤阳离子交换量作用不显著。

    Adding stainless steel tail slag can significantly improve the pH value of soil and leaching solution , organic matter and soil aggregates ; but soil CEC did not increase significantly .

  23. 土壤Cd形态改变的主要原因是添加赤泥提高了土壤pH值和土壤阳离子交换量。(3)添加赤泥可以有效减少水稻糙米中Cd的含量,降低水稻糙米对Cd的富集系数。

    The change of Cadmium fraction distribution in soil was mainly due to the increase of soil pH and cation exchange capacity after red mud addition . ( 3 ) Red mud addition decreased the contents of Cadmium in rice grain and the enriching factor of rice grain .