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水稳性团粒     
相关语句
  water stable aggregate
     Water stable aggregate (>0.5mm) under NTC treatment significantly higher (P< 0.001) than all other treatments.
     降雨前不翻耕+覆盖(ntc)处理0-10 mm土壤>0.5mm水稳性团粒结构百分含量极显著高于其它处理(P<0.001);
短句来源
     The relation between the >0.25 mm water stable aggregate content, the soil sheer strength and the soil erosion intensity were analyzed.
     分析>0.25 mm水稳性团粒含量和抗剪强度与土壤侵蚀强度关系表明,林地开垦后侵蚀1年和侵蚀7年为土壤侵蚀加剧的转折年限,说明退化的侵蚀土壤和退化的生态环境加剧了土壤侵蚀的发生和发展。
短句来源
     The results of the correlation analysis showed that > the 0.25 mm water stable aggregate content was the maximum affecting factor to soil erosion, the partial correlated coefficient was 0.9728, and then were soil coarse grain and soil shear strength, the partial correlated coefficients were 0.8879 and 0.6020 respectively.
     应用相关分析表明,>0.25 mm水稳性团粒含量的改变对土壤侵蚀强度影响最大,其偏相关系数为0.9728,其次是土壤的粗粉粒和抗剪强度,偏相关系数分别为0.8879和0.6020;
短句来源
     From the analysis of soil physical mechanics properties, the clay content and physical clay content decreased 2.74% and 3.01% respectively, and the > 0.25 mm water stable aggregate content also decreased 58.7%, the soil unit weight increased and the soil shear strength decreased, all of which were easier to cause soil erosion.
     通过分析土壤物理力学性质表明,林地开垦侵蚀10年土壤粘粒和物理性粘粒比林地分别减少2.74%和3.01%,土壤向粗骨化趋势发展,>0.25 mm水稳性团粒含量减少58.7%,土壤容重增大,抗剪强度下降,抵抗径流冲刷能力减弱,造成土壤侵蚀更易发生;
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
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  water-stable crumb
     no-tillage is helpful for forming water-stable crumb bigger than0. 25 mm.
     免耕有利于>0.25mm水稳性团粒的形成。
短句来源
  water-stable aggregates
     Effect of Crystal Organic Fertilizer on Water-stable Aggregates and Micro-structure of Soils
     结晶有机肥对土壤水稳性团粒组成及微结构的影响
短句来源
     Plant roots have two significant characteristics in improving soil eco-environment:one is the ecological function of roots to retain water and infiltrate rainfall into soil by enhancing nocapillary poresity of soil: the other is bio-dynamic role of fibrous roots less than lmm in diameter to construct the soil profile with anti-scourability by increasing water-stable aggregates of >2mm in diameter and organic matter of soil.
     植物根系在改善土壤生态环境方面有两大显著特点:一是根系改善土壤物理性质,增加土壤非毛管孔隙度,强化降水就地入渗的水文生态功能; 二是根系尤其是≤1mm径级的须根稳定土层结构,增加土壤>2mm粒级水稳性团粒及有机质含量,创造抗冲性土体构型的生物动力学性质。
短句来源
     Water-stable aggregates and micro-structure of different type soils such as Jiangxi red soil, Henan brown soil, Anhui yellow-red soil and Hubei yellow-brown soil were researched.
     实验室条件下研究了江西鹰潭红壤、河南焦作褐土、安徽芜湖黄红壤、湖北五峰山地黄棕壤等4种类型土壤在结晶有机肥处理前后它们的水稳性团粒组成及其微结构的变化。
短句来源
     After the crystal organic fertilizer was applied to those soils, 0. 25-2. 0 mm water-stable aggregates, physical strength and micro pore of the soil were increased.
     结果表明:结晶有机肥处理显著增加土壤0.25~2.0 mm粒径水稳性团粒比重; 处理后土粒机械强度增大,土粒中微孔增多,淹水后可见大量气泡冒出。
短句来源
  “水稳性团粒”译为未确定词的双语例句
     Applying stepwise regression (the fiducial degree is 0.05), the equation of soil moisture content (y) can be expressed: y= 486. 709+ 2. 061X4 + 1.786X9 - 4.451X10 (R =0.830,X4 :content of waterstable granule, X9:rain fall before 15d, X10: evaporation from water surface).
     运用逐步回归(a=0.05)方法,建立土壤含水量(y)及其影响因子(X_4为水稳性团粒含量,X_9为测土壤水前15d的降水量,X_(10)为水面蒸发量)线性方程为y=486.709+2.061X_4+1.786X_9-4.451X_(10),R=0.830。
短句来源
     Applying polyacrylamide can increase soil sedimentation coefficient 11~14 percent point, structure coefficient 5.5~6.0 percent point, waterstable aggregates 4.16~11.32 percent point compared with no polyacrylamide on sloping field.
     与对照相比 ,施用聚丙烯酰胺后土壤沉降系数提高 11%~ 14 % ,结构系数提高5.5%~ 6 .0 % ,水稳性团粒含量增加 4 .16 %~ 11.32 %。
短句来源
     PAM with a molecular weight ranging from 10 to 12 mg/mol performed most effectively to improve percent water stable aggregation.
     0.25 mm水稳性团粒结构的调控效果以分子量为10~12 mg/mol的PAM最为明显。
短句来源
     Organic matter,total nitrogen and water -stabilizing soil aggregate with sizes 0. 25-10mm increased by 37. 4%-49. 5%, 11. 7%-21. 0% and 51.1%-62. 0% respectively. Soil nutrients also tended to increase and soil fertility enhanced obviously.
     土壤有机质、全氮和10~0.25mm粒径的水稳性团粒含量分别提高37.4%~49.5%、11.7%~21.0%和51.1%~62.0%,土壤养分呈增加趋势,肥力明显提高。
短句来源
     Study on the Effects of PVA on the Formation of Soil Water-stable Crumbe
     聚乙烯醇形成土壤水稳性团粒的效果研究
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 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


Annual rotation of a winter crop with the summer rice is a common agricultural practice in Chekiang province. The rotation system is in variant with regard to the winter crops. In order to evaluate the effect of different winter crops on the state of soil aggregation, the present study was undertaken. Four green-manuring crops including Astragalus sinicus, Medicago denticulata, Vicia faba and Pisum sativam, two winter grain crops including wheat and barley, and one oil-bearing crop, rape, were chosen for rotation...

Annual rotation of a winter crop with the summer rice is a common agricultural practice in Chekiang province. The rotation system is in variant with regard to the winter crops. In order to evaluate the effect of different winter crops on the state of soil aggregation, the present study was undertaken. Four green-manuring crops including Astragalus sinicus, Medicago denticulata, Vicia faba and Pisum sativam, two winter grain crops including wheat and barley, and one oil-bearing crop, rape, were chosen for rotation with the summer rice in the field. The soil under experimentation has been developed under cultivation from an alluvial parent material of fine sandy loam. The field had a water-table lying at a depth of about one meter from the top of the soil throughout the year except during rice growing season. As a check for comparison, winter fallow following rice was also included among the field treatments. Experiments are continued through five consecutive crop seasons, including two in rice and three in winter crops. Among the results, the following may have practical significance in evaluating the various systems of annual rotation for rice field: 1. Among the rotating winter crops tested, Astragalus sinicus is most effective in promoting the formation of soil aggregates having 1-5 mm. in diameter which are believed to be beneficial for rice cultivation. Other leguminous crops also show their constructive effect on soil aggregates, but are by far inferior to the Astragalus. To the contrary, soils under winter grains and the rape tend to deteriorate in their aggregation. 2. Close parallel relationship is found between the soil organic matter content and the percentage content of soil aggregates having 1-5 mm. in diameter. 3. The structural units with diameters larger than 5 mm. seem to be different in nature from those aggregates having 1-5 mm. in diameter. For rice soils, such large structural units are believed to be of little practical importance in so far as their fertility status is concerned, since they are to be disintegrated during the cultivation of rice.

四、摘要本試驗的一年轮作制,包括單季水稻与下列冬作的轮栽:紫云英,苜蓿,蚕豆,豌豆,油菜,小麦及大麦。另以冬季休閑作为对照。經过三次冬作,二次水稻(夏作)的轮栽,結果显示: 1.冬季种植一年生荳科綠肥,能够增加土埌中有机質含量。其中以紫云英最佳;苜蓿,蚕豆,豌豆等次之。 2.在水稻与紫云英轮作的土埌中,直徑为1—5毫米的团粒含量有显著的增加。水田中的其他荳科綠肥,如苜蓿,蚕豆,豌豆等,也能維护土埌中的团粒構造,但其效果較差。水田中禾谷类冬作轮栽或油料作物轮栽,对于土埌中直徑为1—5毫米的团粒含量,均有破坏的影响。 3.各輪作区,凡土埌有机質含量較高的,其直徑为1—5毫米的水稳性团粒也比較多;而其他大小的構造單位,和有机質的多少无关。

It was shown by two-year observation of sainfoin pastures aged from one to nine years that with the development of saiufoin pasture in age the soil fertility and the amount of full-nutrients of nitrogen and phosphorus as well as the soil porosity and water-stable granules increased,while the soil density,specific gravity and compacness decreased, the result proved that sainfoin could play quite a good role in improving the physicochemical properties,raising soil fertility,making the amount of the soil nutrients...

It was shown by two-year observation of sainfoin pastures aged from one to nine years that with the development of saiufoin pasture in age the soil fertility and the amount of full-nutrients of nitrogen and phosphorus as well as the soil porosity and water-stable granules increased,while the soil density,specific gravity and compacness decreased, the result proved that sainfoin could play quite a good role in improving the physicochemical properties,raising soil fertility,making the amount of the soil nutrients reseve larger and turning nutrient supply for plants into a better condition,The optimum lengh for sainfoin pasture is about five years.

通过对1—9年生红豆草地的观测表明,随着红豆草生活年限的增长,土壤有机质及氮、磷全量养分逐年提高,土壤容重,比重和坚实度递减,而土壤孔隙度,水稳性团粒递增。显示出红豆草具有改善土壤理化性状,提高土壤肥力,增加土壤养分储量,增强养分供应强度的良好作用,但红豆草利用年限以五年为宜。

Based on the analysis of physical and chemical features such as the water content of soil, crumb structure subject to water-stability and organic matter content of soil disturbed or undisturbed through simulated rainfall test, the paper pointed out that the rate of various features varied slightly. Most of them rounded 5%, and almost identified in the shallow layer.The paper concluded that the magnitude of runoff and soil erosion in testing plot bears less impact under artificia(?) disturbing, so the plots subject...

Based on the analysis of physical and chemical features such as the water content of soil, crumb structure subject to water-stability and organic matter content of soil disturbed or undisturbed through simulated rainfall test, the paper pointed out that the rate of various features varied slightly. Most of them rounded 5%, and almost identified in the shallow layer.The paper concluded that the magnitude of runoff and soil erosion in testing plot bears less impact under artificia(?) disturbing, so the plots subject to being treated were suitable to simulated rainfall test.

本文通过人工模拟降雨试验,分析了扰动与未扰动试验区土壤的含水率、水稳性团粒结构、有机质含量等理化特性的差异,指出扰动土经过人为处理后,土壤理化特性与未扰动土误差大多在5%左右,仅个别超过10%,浅层土的理化特性基本一致.文章认为,人为扰动处理整修的试验区,对径流量、侵蚀量影响不大,可以用来进行人工模拟降雨试验.

 
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