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水稳性团聚体     
相关语句
  water stable aggregate
     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
     After wet sieving, water stable aggregate showed the highest fraction at the size of <0.25mm,while micro-aggregate was distributed from 0.25mm to 0.01mm size.
     土壤水稳性团聚体的粒级分布(PSD)均以<0.25mm居多,土壤微团聚体的粒级分布则以0.25-0.01mm粒级为主。 水稳性团聚体的含量随粘粒含量的增加而增加。
短句来源
     There were difference in some extents among four kinds of organic fertilizers and compared with CK in terms of 0.5~0.25 mm water stable aggregate content.
     各种有机肥之间及其与对照相比0.5~0.25mm水稳性团聚体含量都存在不同程度的差异。
短句来源
     Indexes including organic matter content, water stable aggregate content, mean weight diameter of water stable aggregate, aggregate degree and disperse coefficient were selected to evaluate soil anti erodibility of soil and water conservation forests component of different tree species at different ages.
     运用土壤有机质含量、水稳性团聚体含量、水稳性团粒平均重量直径、团聚度和分散系数等各项指标 ,对不同树种组成、不同林龄水土保持林的土壤抗蚀性能进行分析、评价 .
短句来源
     The results show that soil OM content has obviously closer relationship with >0.25mm soil water stable aggregate content (%) than that of soil nitrogen and phosphorus content.
     试验结果表明,土壤有机质含量x(%)与土壤>0.25mm水稳性团聚体含量y(%)呈显著线性正相关,土壤全氮、土壤全磷与>0.25mm土壤水稳性团聚体也呈指数关系;
短句来源
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  water-stable aggregate
     It is found that soil structure is significantly influenced by clay and organic matter in the soil. Statistic analysis shows that soil structure coefficient is positively correlated with soil clay content, and that 1—0.05 mm microaggregate, 10—0.25mm water-stable aggregate and its mean geometric diameter value are obviously correlated with organic matter content in soil.
     土壤粘粒、有机质,尤其是后者对土壤结构状况影响很大,土壤结构系数与土壤粘粒含量呈显著正相关,土壤1—0.05mm粗微团聚体含量、10—0.25mm水稳性团聚体及其几何平均直径值,均与土壤有机质含量呈显著正相关。
短句来源
     Mass of >0.25 mm water-stable aggregate is 23.8%-45.4%. Percentage of aggregate destruction(PAD) ranges from 52.4% to 66.8%,showing a poor aggregate stability. Ari-Sandic Primosols have the highest PAD.
     >0.25mm的水稳性团聚体变动在23.8%~45.4%,团聚体破坏率(PAD)为52.4%~66.8%,团聚体组成和特征有利于抵抗土壤风蚀,但稳定性差,灌溉后易于分散、沉实板结、通透性差。
短句来源
     Fruit cultivation increased significantly(p<0.05) the content of soil water-stable aggregate >250μm(WSA),as well as decreased soil clay dispersion rate(CDR).
     果树栽培还明显增加了土壤>250μm水稳性团聚体(WSA)的含量,同时减少了土壤粘粒分散率(CDR)。
短句来源
     There is abundant radily nutrient in the locust×sea-buckthorn mixed forest,and there are a mass of clay and water-stable aggregate which is ≥0.25mm in it.
     其中刺槐×沙棘混交林地速效养分丰富,粘粒和≥0.25mm水稳性团聚体的数量大;
短句来源
     Single correlation analysis showed that >0.25mm water-stable aggregate , non-capillary porosity,capillary porosity, bulk density, organic matter, total porosity were correlated with maximal available water capacity most-significantly.
     单相关分析表明,>0.25mm的水稳性团聚体含量、非毛管孔隙度、毛管孔隙度、容重、有机质、总孔隙度与土壤水库最大有效库容有极显著相关。
短句来源
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  water-stable aggregates
     Correlative analysis indicated content of soil water-stable aggregates(>0.25 mm) is in high correlation with content of organic matter of soil and yield of corns,and their correlative coefficients are 0.860 and 0.703 respectively.
     相关分析表明,大于0.25 mm的水稳性团聚体含量与土壤有机质含量及作物产量呈显著相关,相关系数分别为0.860和0.703。
短句来源
     The results showed there are great differences in content of water-stable aggregates(>0.25 mm) under different tillages.
     结果表明:不同耕作条件下,大于0.25 mm水稳性团聚体的含量差异较大。
短句来源
     (2) the content of water-stable aggregates (>0.25 mm) and the rate of soil structure damage was in an order of 3330 Caragana/ha < natural grassland < 2490 Caragana/ha < 1665 Caragana/ha.
     ②>0.25mm的水稳性团聚体含量3330丛/hm~2柠条林<天然恢复草地<2490丛/hm~2柠条林<1665丛/hm~2柠条林;
短句来源
     The result showed that the content of >0.25mm air-dried aggregates,>0.25mm water-stable aggregates,clay and SOM was related to the soil type closely.
     结果表明,>0.25mm风干团聚体、>0.25mm水稳性团聚体含量和土壤有机质含量与土壤类型间有密切关系。
短句来源
     The results show that: In terms of vegetation succession stages,the contents of big gravel soil water-stable aggregates increased,the >5mm aggregate is priority in different layers,about 50%-80%.
     结果表明:随着植被演替,土壤中大粒级水稳性团聚体含量逐步增加,>5mm粒级团聚体在土壤团粒结构中占主导地位,含量占50%~80%。
短句来源
更多       
  soil water stable aggregate
     The results show that soil OM content has obviously closer relationship with >0.25mm soil water stable aggregate content (%) than that of soil nitrogen and phosphorus content.
     试验结果表明,土壤有机质含量x(%)与土壤>0.25mm水稳性团聚体含量y(%)呈显著线性正相关,土壤全氮、土壤全磷与>0.25mm土壤水稳性团聚体也呈指数关系;
短句来源

 

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  water stable aggregate
Organic matter accumulation improved soil texture, and water stable aggregate content (>amp;gt;0.25 mm) and soil porosity increased.
      
  water-stable aggregate
One year after treatment, soil samples were wet-sieved and water-stable aggregate size-class arrays were determined.
      
The rhizobacterium enhanced the water-stable aggregate status in the non-VAM soils only.
      
We hypothesized long-term tillage and cropping system treatments affect water-stable aggregate size distribution, aggregate water stability, and dry soil aggregation.
      
A study was made of the effect on water-stable aggregate distribution of sterilizing soil at three rates of application of ethylene oxide and with heat in the usual manner.
      
This study deals with the effect of fire and ash input on microbial respiration and on distribution of C within water-stable aggregate in soils during a long-term incubation experiment (164 days).
      
更多          
  water-stable aggregates
Biomass of fine roots and its relationship with water-stable aggregates in a composite ecosystem of triploid Populus tomentosa i
      
A study on the biomass of fine roots and its relationship with water-stable aggregates (WSA) was conducted in two herbaceous models, triploid Populus tomentosa + Lolium multiflorum (TL) and triploid P.
      
The amounts of water-stable aggregates of natural grass-forest lands (TN model) were higher than those of managed grass-forest lands (TL model).
      
Two-way analysis of variance indicated that fine roots (≤ 1 mm) could significantly enhance water-stable aggregates and total water-stable aggregates.
      
Mineralogy of the clay fraction of water-stable aggregates from dark gray forest soil
      
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  其他


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 review paper discusses the results obtained recently from researching into the soil physical properties under infiltration ridge tillage system, comparing with the conventional tillage system, the infiltration ridge tillage system can construct more favourable root system environment for the growth of rice, wheat field bean or rape crops.

起垄沟泥加筑垄埂,使根层增厚10—15cm,上体表面扩大27.4—42.4%;变潜育层为氧化层,土体酥软成豆大粒状结构;蓄水量增加50~200%,减少灌水74.2%;土壤水分数量、存在形态、空间分布、能态、运动方向和速度及对作物的有效性都发生了有利的显著变化;叶面蒸腾增大3.6%,地下渗漏减少3.9%;增加吸收太阳辐射3%,使垄埂日间增温(2—5℃);反射率增加,夜间降温0.5—1.0℃,使能量交换更频繁;土壤氧化还原电位高100—200mv,还原性物质总量低75—80%;耕层中,>0.25mm的水稳性团聚体明显提高;容重增大,与旱地、旱土相比,总孔隙仍较高,孔隙稳定性增加,且主要是毛管水,空气仍占4—9%。总之,呈现出有利于作物生长的土壤物理状况变化。

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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