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土壤水稳性
相关语句
  soil water stability
     Reason of reducing soil erosion with polyacrylamide is that it can accelerate soil sedimentation,improve soil structure, raise soil water stability.
     聚丙烯酰胺的适宜用量为 0 .3~ 1.2 g· m-2。 聚丙烯酰胺减少土壤侵蚀量的原因在于能促进土壤沉降 ,改善土壤结构 ,提高土壤水稳性
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  “土壤水稳性”译为未确定词的双语例句
     Soil nitrogen and phosphorus content (%) have exponential relationship with >0.25mm water stable aggregate content (%).
     土壤有机质含量与>0.25mm土壤水稳性团聚体含量关系更密切一些,可以用土壤有机质含量和土壤团聚体平均重量粒径(MWD)来表示土壤团聚体的水稳定性的大小。
短句来源
     the waterstable coefficient of deterionated soil is 22.5%~28.5%;
     退化土壤水稳性系数为22.5%~28.5%;
短句来源
     Forest vegetation can obviously increase the number of >5 mm and 2~5 mm soil water stable aggregates.
     森林植被增加直径 >5 mm和 2~ 5 mm粒级土壤水稳性团聚体的作用明显
短句来源
     In 0~10 cm depth of soil, the increments of >5 mm soil water stable aggregates in sharptooth oak forest, Chinese pine forest and meadow were 27.8%,14.0% and 5.7% respectively, and those of 2~5 mm were 6 0%, 11.1% and 8.6% respectively.
     1~ 2 mm粒级的土壤水稳性团聚体含量的增量锐齿栎林为 6.0 % ,油松林为 1 1 .1 % ,草丛 8.6%。
短句来源
     The higher the inoculation rate,the higher the hyphal desity. Mycorrhizal hyphal contribution to the formation of water-stable soil aggregates of 5~2 mm was 100% within the distance of 4~6 cm from the root surface,however not within the distance of 0~2 or 2~4 cm.
     (3)2~1mm粒径团聚体在土壤水稳性团聚体构成中占有绝对比重,菌根菌丝对距根表不同距离处2~1mm团聚体形成的贡献率均在70%以上,但距根表2~4cm处菌根菌丝贡献率明显低于0~2、4~6cm处,并未表现出随菌丝密度增加而提高的趋势;
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  相似匹配句对
     Forest,Soil and Water
     森林、土壤
短句来源
     Study on the Effects of PVA on the Formation of Soil Water-stable Crumbe
     聚乙烯醇形成土壤稳性团粒的效果研究
短句来源
     The Effects of Slime-forming Bacteria on the Formation of Soil Water-stable Aggregates
     荚膜细菌在土壤稳性团聚体形成中的作用
短句来源
     They always connected water with their attitude.
    
短句来源
     the waterstable coefficient of deterionated soil is 22.5%~28.5%;
     退化土壤稳性系数为22.5%~28.5%;
短句来源
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In this PaPer, waterstable soil structure of cultivated horizon is discussed on the basis of analytical data of ton soil tyPes (i.e. Black soil. Bog soil. Gray forest soil. Guan-yu soil. Paddy soil. solonchak. Burogen. Chestnut soil Drab soil and chao soil) collected from Hebeie Province. The results obtained are summarized as follows: Ⅰ. With large amount of humic substances, black soils and bog soilsare well aggregated and highly stable in structure, so the content of waterstable macroaggregates (>0.25mm)...

In this PaPer, waterstable soil structure of cultivated horizon is discussed on the basis of analytical data of ton soil tyPes (i.e. Black soil. Bog soil. Gray forest soil. Guan-yu soil. Paddy soil. solonchak. Burogen. Chestnut soil Drab soil and chao soil) collected from Hebeie Province. The results obtained are summarized as follows: Ⅰ. With large amount of humic substances, black soils and bog soilsare well aggregated and highly stable in structure, so the content of waterstable macroaggregates (>0.25mm) is more than 60%; but that in guan-yu soils. warped chao soils and a part of burogon (where the plants arewell protected is more than 40%, and that in other soils is less than 40%. In terms of area, drab soil is the most prevalent, but the content of waterstable macroaggreates in it is, in most part, less than 30%, and that in chao soils widely distributed on the alluvial plain is less than 20%. In ordinary chestnut soils and slonhaks (which contains inland solonchaks and coastal solonchaks), the content of waterstable macroaggregates is less than 10%, and in Certein case, it is even lower than 5%. 2. The structural coefficiant of soils in HeBei Province is mostly more than 40%, and in most cases it is more than 60%; but only in solonh aksit is less than 40%.

对河北省十个主要土壤类型的耕层土壤结构进行了水稳性分析,得到了如下结果: 1、除了黑土和沼泽土这二个土壤类型,其水稳性大团聚体总量在60%以上,和灌淤土、粘质潮土和部分棕壤(植被保护好的)在40%以上外。其他土壤都在40%以下。尤其是分布面积最大的褐土,大部分在30%以下。广大冲积平原上的潮土,大部分在20%以下。普通栗钙土和盐土(包括内陆盐土和滨海盐土),在10%以下,低的甚至在5%以下。 2、河北省土壤的结构系数大部在40%以上,其中许多土壤在60%以上,仅有盐土在40%以下。若干研究工作和生产实践表明,土壤结构是土壤肥力的基础。具有良好结构的土壤,能调节土壤中的水、气、热、肥的矛盾,满足作物高产稳产的需要。土壤结构问题涉及面较广,本文仅对河北省十个主要土壤类型的表层(0—20厘米)土壤水稳性结构状况进行初步探讨。

This paper reports the content of organic matter and 0.05—0.01mm water-stable aggregates of soil increased during the application of organic manure mixed with fertilizer—N 3—5 years in the paddy soil. It has been found that the stable property of soil organic mineral complex is closely related with the amount of total carbon, complexing carbon. Humus acids and Fe. Ca. clay of soil, which is an important factor for forming soil structure.

对于水旱轮作田,采用有机肥(绿萍、稻草、猪粪)与化肥配合连续施用,不仅增加土壤水稳性团聚体(0.05—0.01mm)的数量,并对土壤有机—无机复合胶体的稳定性、吸附性有良好的效果,通过测试结合态碳的形态、分配及其作用,说明不同有机肥的改土培肥机理。

This paper is concerned with soil erodibility of different land types on the Loess Plateau. From the results obtained, it has been found that resistance to soil erosion in grassland and forest land soil is much higher than that of cultivated land. The resistance to soil erosion on the soil surface is higher than that of the subsurface.The statistical analysis demonstrates that soil volume weight (v), quantity of >0.25mm total aggregate (a) and infiltration coefficient (i) are the main factors that determine...

This paper is concerned with soil erodibility of different land types on the Loess Plateau. From the results obtained, it has been found that resistance to soil erosion in grassland and forest land soil is much higher than that of cultivated land. The resistance to soil erosion on the soil surface is higher than that of the subsurface.The statistical analysis demonstrates that soil volume weight (v), quantity of >0.25mm total aggregate (a) and infiltration coefficient (i) are the main factors that determine soil erodibility(k). the relationship between k and v,a,i can be described by the follwing regression equation; k= 27 .6261-14 9964v -0.1382a-2.5911i.

通过对黄土高原沟壑区不同地类土壤抗蚀性的研究,发现林草地土壤抗蚀性能明显高于农田,表层土壤的抗蚀性能一般比下层土壤要强。研究表明土壤容重、大于0.25mm的土壤水稳性团聚体含量以及土壤渗透系数是决定土壤抗蚀性大小的主导因素。通过运用逐步回归分析方法,得到了可用于预报和确定土壤抗蚀性的回归方程。

 
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