助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   水稳性 在 农业基础科学 分类中 的翻译结果: 查询用时:0.045秒
图标索引 在分类学科中查询
所有学科
农业基础科学
农艺学
公路与水路运输
林业
自然地理学和测绘学
农作物
建筑科学与工程
畜牧与动物医学
矿业工程
更多类别查询

图标索引 历史查询
 

水稳性     
相关语句
  water stability
    The water stability macroaggregates contents of long term tillage and 30 yrs lucerne fields were only 7% and 22% separately.
    在0-10cm土层,长期耕种和种植苜蓿土壤水稳性大团聚体(>0.25mm)含量仅分别为7%和22%。
短句来源
    Both in 0-5 cm and 5-10 cm layer, the water stability macroaggregates content of long-term tillage field was significantly low than that of 30 yrs lucerne field.
    无论在0-5cm土层还是在5-10cm土层,长期耕种土壤的水稳性大团聚体含量均显著低于种植苜蓿土壤的。
短句来源
    The energy discharged in the breakdown of soil aggregate has a close relation with soil structure and water stability ofsoil aggregate.
    能量法:土壤团聚体破坏所需雨滴打击能量与土壤质地和土壤团聚体水稳性有密切关系,土壤团聚体的水稳性越好,破坏时所需能量越多。
短句来源
    Effect of organic materials and inorganic N on water stability of aggregates in cultivated black soil
    有机物料及无机氮对耕地黑土团聚体水稳性的影响
短句来源
    Following conclusions can be reached:(1) There are several factors affecting water stability of soil aggregate (WSA) such as soil OM (organic matter), soil nitrogen and phosphorus content, vegetation, and no-tillage years, et al.
    (1)影响土壤团聚体水稳性的因素主要有土壤有机质、土壤全磷、土壤全氮和土壤植被以及退耕年限等。
短句来源
更多       
  water stable
    Soil bulk density,soil organic matter content,the >0.25 mm water stable aggregates and soil porosity are the main causes for the increased infiltration rate.
    这主要与流域实施水土保持综合治理后土壤容重、有机质、>0.25 mm水稳性团聚体含量、孔隙度等影响土壤入渗的因素发生了明显改变有关,梯田等工程措施对土壤稳渗速率的改善作用不明显。
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
    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
    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
    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
更多       
  water-stability
    Water-stability aggregate was positive correlated with organic content at r2 =0.9251. By six kind of fertilization treatments with equivalent N content, NO3-N content with only N fertilizer utilization were 2.9, 1.8 and 1.6 times higher than that in N+ organic fertilizer, NPK and NP treatments.
    水稳性团聚体含量与有机质含量呈r2=0.9251的正相关关系。 6个不同施肥处理在施N量相同的条件下,单施N肥土壤的NO3-N含量最高,分别是N+有机肥、NPK、NP处理的2.9倍、1.8倍和1.6倍。
短句来源
    Increased decomposition and decreased input of organic matter after reclamation were responsible for the decrease in b oth the water-stability of aggregate and the amount of water-stable aggregates in karst soils.
    水稳定性团聚体以及团聚的水稳性均与有机质的含量呈正相关 ,林地、草坡开垦后 ,土壤有机质分解加快或补充减少是土壤团聚体水稳定性下降及数量减少的主要原因。
短句来源
    Either the water-stability of aggregates (especially >2mm ) or the content of water-stable aggregates is highly correlated with the contents of soil organic matter. This result shows that organic matter is the cementation of soil aggregate structure.
    水稳性团聚体 (尤其是 >2mm的水稳性团聚体 )以及团聚的水稳性主要受有机质的含量影响 ,目前有机质是这一地区土壤结构形成的最为重要的胶结物质 ;
短句来源
    Increased decomposition and decreased input of organic matter after reclamation of shrub grassland and woodland are responsible for the decrease in both the water-stability of aggregates and the amount of water-stable aggregates in karst soils.
    林地、草坡开垦后 ,土壤有机质分解加快或补充减少是土壤团聚体水稳性下降及数量减少的主要原因。
短句来源
  water-stable
    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
    POC was found to accumulate in water-stable aggregates larger than 2mm in size and to decrease sharply with the decreasing size.
    >2mm水稳性大团聚体中的POC对施肥的响应较为敏感,以化肥与秸秆配施下该粒径水稳性团聚体中POC的积累效果最为明显。
短句来源
    Furthermore,POC in >2mm water-stable aggregates was significantly higher under chemical fertilization plus straw return,while POC in those of 2-0.25mm and 0.25-0.053mm in size slightly higher under chemical fertilization plus pig manure,indicating a higher sensitivity of POC in larger aggregates to fertilization practices.
    而化肥与猪粪配施则显著增加了2~0.25mm和0.25~0.053mm水稳性团聚体中的POC含量。
短句来源
    Regression coefficients showed a possible source of POC in water-stable aggregates from increased crop biomass in topsoil(0-5cm) and organic matter applied in sub-surface layer(5-15cm).
    土壤不同层次水稳性团聚体中POC的来源不同,在0~5 cm表层可能主要来源于作物根茬生物量,而在5~15 cm土层则可能跟施入的外源有机物有关。
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
更多       

 

查询“水稳性”译词为其他词的双语例句

     

    查询“水稳性”译词为用户自定义的双语例句

        我想查看译文中含有:的双语例句
    例句
    为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
      water stability
    It was found that agricultural use affected the main physical properties of the soils: the bulk density and the water stability of the aggregates.
          
    The soil is more compacted on a slope with a gradient of 1-3 degrees, and a decreased water stability of the aggregates is observed on a slope with a gradient of 3-5 degrees.
          
    The soil structure and the water stability of the soil aggregates in the upper 30-cm-deep layer have improved.
          
    Their density increases, the structure is disturbed, and the water stability of the aggregates becomes poorer.
          
    Phosphogypsum applied alone causes a deterioration of the agrophysical properties as it produces an extremely high water stability of aggregates and strong soil compaction.
          
    更多          
      water stable
    The content of water stable aggregates in 18-year-old shrub land soil is higher than the 8-year-old shrub land, and the big aggregates (>amp;gt;5 mm) increased for the most part, by 67.4% and 59.0% in different layers, respectively.
          
    The number of soil granular aggregates or the water stable aggregates under corylus clusters is more than that under the non-corylus clusters.
          
    The influence of earthworms was determined by comparing soil aggregates and casts with respect to dry and moist porosity, swelling, and water stable aggregation.
          
    In low P soils, however, a positive relation between the abundance of water stable soil aggregates in the 0.5-2?mm diameter range and RTI was most important.
          
    The influence of water stable aggregation of soil on RTI was modulated by soil P levels.
          
    更多          
      water-stable
    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
          
    更多          


    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。

    1 7—18% 1 80% 1 <0.25 1—0.5 7—32%.43%, 26%.~~

    贛中丘陵地区红壤性水稻土分布面积很广,但由于所处的地形部位不同及人类耕作措施各异,各类红壤性水稻土的肥力水平有很大差异。影响土壤肥力水平有两个方面:卽土壤既能滿足作物生长过程所需的水分和养分,又能使作物有良好的“居住环境”,而土壤的物理性质对保証作物良好的居住环境起有决定的作用。研究土壤的结构、各结构体内的孔隙状况以及結构胶結物貭的种类和数量,对认識土壤物理性貭在提高肥力上的作用具有很大意义。根据我們初步的研究結果,紅壤性水稻土中,水稳性結构大于1毫米粒級的結构体,含量較少,一般仅占总数的7—18%,小于1毫米的占80%以上。在小于1毫米的各粒級中,除<0.25毫米粒級占絕对优势外,1—0.5毫米的粒級占7—32%,肥土(烏泥田)中1—0.5毫米粒級的含量較高。不同土壤的結构体,由于其内部的孔隙状况不一,土壤肥沃度也各有异。肥土結构体内的总孔隙度高达43%,而瘠土(結板田)只26%。如按相同粒級結构体内的孔隙相比也是肥土中高而瘠土中低。在这个地区土壤結构体内孔隙的形成,主要取决于結构胶結物貭的种类和数量以及微凝聚体的排列形式。一般的說,如果胶結物貭以无定形R_2O_3或多量粘粒的接触作用为主,則結...

    贛中丘陵地区红壤性水稻土分布面积很广,但由于所处的地形部位不同及人类耕作措施各异,各类红壤性水稻土的肥力水平有很大差异。影响土壤肥力水平有两个方面:卽土壤既能滿足作物生长过程所需的水分和养分,又能使作物有良好的“居住环境”,而土壤的物理性质对保証作物良好的居住环境起有决定的作用。研究土壤的结构、各结构体内的孔隙状况以及結构胶結物貭的种类和数量,对认識土壤物理性貭在提高肥力上的作用具有很大意义。根据我們初步的研究結果,紅壤性水稻土中,水稳性結构大于1毫米粒級的結构体,含量較少,一般仅占总数的7—18%,小于1毫米的占80%以上。在小于1毫米的各粒級中,除<0.25毫米粒級占絕对优势外,1—0.5毫米的粒級占7—32%,肥土(烏泥田)中1—0.5毫米粒級的含量較高。不同土壤的結构体,由于其内部的孔隙状况不一,土壤肥沃度也各有异。肥土結构体内的总孔隙度高达43%,而瘠土(結板田)只26%。如按相同粒級結构体内的孔隙相比也是肥土中高而瘠土中低。在这个地区土壤結构体内孔隙的形成,主要取决于結构胶結物貭的种类和数量以及微凝聚体的排列形式。一般的說,如果胶結物貭以无定形R_2O_3或多量粘粒的接触作用为主,則結构体內部的孔隙度較小(如紅瓖母貭)。肥沃的紅壤性水稻土中,結构体的胶結物貭以有机貭起主导作用及顆粒大小不均一,使結构体內部的孔隙度較大。由于胶結物貭的种类和数量不一,有机、无机胶体的复合类型也不同,因而使肥土中的結构体不仅具有水稳性,而且还是多孔性的。只有这种結构体才能調节和滿足作物生长所需的土壤环境,才能形成肥沃的土壤。

    ~~

    本文引用了胶体化学的观点和方法及显微镜观察技术,研究了江西红壤中的胶结物质和结构形成的关系。结果表明,不同土壤中的胶结物质大致可分成三类:(1)以无机胶结物质为主(如第四纪红色粘土母质);(2)无机胶结物质和有机胶结物质(如旱地红壤);(3)以有机胶结物质为主(如乌泥田)。三类胶结物质中的胡敏酸含量是以第四纪红色粘土中为最少,旱地红壤中稍高,乌泥田中最多,胡敏酸和富里酸的比值相应为0.1—0.2,0.5—0.7及1。胡敏酸和富里酸的比值并不决定于有机碳总量,而在一定程度上与耕作水平密切相关。看来肥沃的土壤要大些。三类胶结物质所形成团聚体的孔隙性,以第一类为最低(30%),第三类为最高(40%)。各类团聚体中的脂蜡物质、游离态有机胶结物质和胡敏素含量,在绝大多数情况下,是随着团聚体粒径的减小而减少。当土壤含有机质较少时,团聚体中与有机质结合的无定形三氧化铁和无定形三氧化铁的含量是随着团聚体粒径的減小而增多。良好团聚体的形成要通过多种多样的结合作用,既由胡敏素结合成稳定性很大的微团聚体,又有由较新鲜的有机胶结物质把微团聚体结合为大团聚体。这种大团聚体既有一定的水稳性,又具备多孔性及养分速效性的特点。土...

    本文引用了胶体化学的观点和方法及显微镜观察技术,研究了江西红壤中的胶结物质和结构形成的关系。结果表明,不同土壤中的胶结物质大致可分成三类:(1)以无机胶结物质为主(如第四纪红色粘土母质);(2)无机胶结物质和有机胶结物质(如旱地红壤);(3)以有机胶结物质为主(如乌泥田)。三类胶结物质中的胡敏酸含量是以第四纪红色粘土中为最少,旱地红壤中稍高,乌泥田中最多,胡敏酸和富里酸的比值相应为0.1—0.2,0.5—0.7及1。胡敏酸和富里酸的比值并不决定于有机碳总量,而在一定程度上与耕作水平密切相关。看来肥沃的土壤要大些。三类胶结物质所形成团聚体的孔隙性,以第一类为最低(30%),第三类为最高(40%)。各类团聚体中的脂蜡物质、游离态有机胶结物质和胡敏素含量,在绝大多数情况下,是随着团聚体粒径的减小而减少。当土壤含有机质较少时,团聚体中与有机质结合的无定形三氧化铁和无定形三氧化铁的含量是随着团聚体粒径的減小而增多。良好团聚体的形成要通过多种多样的结合作用,既由胡敏素结合成稳定性很大的微团聚体,又有由较新鲜的有机胶结物质把微团聚体结合为大团聚体。这种大团聚体既有一定的水稳性,又具备多孔性及养分速效性的特点。土壤粘土矿物在形成团聚体中的作用与其他胶结物质密切相关。

     
    << 更多相关文摘    
    图标索引 相关查询

     


     
    CNKI小工具
    在英文学术搜索中查有关水稳性的内容
    在知识搜索中查有关水稳性的内容
    在数字搜索中查有关水稳性的内容
    在概念知识元中查有关水稳性的内容
    在学术趋势中查有关水稳性的内容
     
     

    CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
    版权图标  2008 CNKI-中国知网
    京ICP证040431号 互联网出版许可证 新出网证(京)字008号
    北京市公安局海淀分局 备案号:110 1081725
    版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社