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次生盐碱地
相关语句
  secondary salinization land
     Effect of Salt Restraint on Vicia villosa in secondary salinization land
     毛苕子对次生盐碱地抑盐效应的研究
短句来源
  secondary salinization
     Study on the Determination of Salt tolerance Index of Main Afforestation Tree Species and Their Ordination in Arid Areas with Secondary Salinization
     干旱地区次生盐碱地主要造林树种抗盐指标的确定及耐盐能力排序
短句来源
     Effect of Salt Restraint on Vicia villosa in secondary salinization land
     毛苕子对次生盐碱地抑盐效应的研究
短句来源
  “次生盐碱地”译为未确定词的双语例句
     The task of this article is to research the movement state of salt and water in secondary saline-alkali land, and different densities, fertilization, ages of As tragalus membranaceus Bge's salt improvement effect, and chose one of effective, scientific biological method to develop herb medicine in saline-alkali land.
     试验选择不同栽培条件旨在探讨次生盐碱地土壤的盐分运动规律,和不同密度、施肥和年龄的黄芪对盐碱地的改良效果,为生物防盐治盐和发展盐地药产业探索一条行之有效、系统科学的的技术途径。
短句来源
     Soluble salt content and different salt ions content were measured in different density Vicia villosa fields for studying the effect of soil salt restraint on Vicia villosa.
     通过田间试验测定不同密度毛苕子(Viciavillosa)处理的可溶性盐分及盐分离子,研究了毛苕子对次生盐碱地的抑盐效应。
短句来源
  相似匹配句对
     Effect of Salt Restraint on Vicia villosa in secondary salinization land
     毛苕子对次生盐碱地抑盐效应的研究
短句来源
     SECONDARY COLOUR OF JADEITE JADE
     翡翠的次生
短句来源
     The Secondary Metabolism of Plant
     植物次生代谢
短句来源
     Techniques of Planting on Salina Land
     盐碱地园林绿化技术
短句来源
     Study on the Determination of Salt tolerance Index of Main Afforestation Tree Species and Their Ordination in Arid Areas with Secondary Salinization
     干旱地区次生盐碱地主要造林树种抗盐指标的确定及耐盐能力排序
短句来源
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  secondary salinization
On irrigated ground with poor natural drainage, artificial drainage is used to prevent secondary salinization and swamping.
      
Two hundred forty-three isolates of alfalfa root-nodule bacteria (Sinorhizobium meliloti) were obtained from nodules and soils sampled in the northern Aral region, experiencing secondary salinization.
      
Soil salinity is the most important factor affecting vegetation distribution, and the secondary salinization has affected the development of oasis agriculture.
      
When undisturbed by human, the groundwater table rises from mountain to belt of ground water spillage, the groundwater table rises mightily in plain because of the artificial irrigation, and the secondary salinization of soil is very serious.
      
The new oasis has been the areas of salt accumulation because of the artificial irrigation, the salt content in soil is higher than that in old oasis, so some cultivated fields here had to be thrown out because of the serious secondary salinization.
      
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The research on the slat tolerance index of main afforestation tree species in arid and semi arid areas with secondary salinization was carried out during the year 1991~1995,and the index of salt tolerant were as follows: Populus enphratica Oliv.<8 g/L P.alba var pyramidalis Bge.<6 g/L Lyeium chinese Mill.<7 g/L Tamarix ramosissima Ledeb<50 g/L Hedysarum scoparium Fisch.et Mey.<5 g/L Hedysarum mongolicum Turcz.<6 g/L Elaeagnus angustifolia...

The research on the slat tolerance index of main afforestation tree species in arid and semi arid areas with secondary salinization was carried out during the year 1991~1995,and the index of salt tolerant were as follows: Populus enphratica Oliv.<8 g/L P.alba var pyramidalis Bge.<6 g/L Lyeium chinese Mill.<7 g/L Tamarix ramosissima Ledeb<50 g/L Hedysarum scoparium Fisch.et Mey.<5 g/L Hedysarum mongolicum Turcz.<6 g/L Elaeagnus angustifolia L.<4 g/L Hippophae rhamnoedes L.<6 g/L Haloxylon ammodendron (Mey).Bunge<30~50 g/L Pyrus betulaefolia Bge.<4 g/L Caragana intermedia Kuang et H.<7 g/L The ordination for capability of salt tolerant species is from strong to weak: Haloxylon ammodendron,Tamarix ramosissma,Populus enphratica,Lyeium chinese,Caragana intermedia,Hedysarum mongolicum, Hippophae rhamnoides,Populus alba,Hedysarum scoparium,Elaeagnus angustifolia and Pyrus betulaefolia.

我国西北干旱地区次生盐碱地的主要造林树种的抗盐碱上限指标:新疆杨可以在土壤含盐量<6g/L时生长正常;杜梨<4g/L;柠条<7g/L;花棒<5g/L;沙棘<6g/L;沙枣<4g/L;枸杞<7g/L;梭梭<30~50g/L;胡杨<8g/L;柽柳<50g/L;杨柴<6g/L。树种耐盐碱能力的顺序由大到小为:梭梭、柽柳、胡杨、枸杞、柠条、杨柴、沙棘、新疆杨、花棒、沙枣、杜梨

Soluble salt content and different salt ions content were measured in different density Vicia villosa fields for studying the effect of soil salt restraint on Vicia villosa. The results showed that in 0~100 cm soil layer, the average soluble salt content in high, middle and low density Vicia villosa fields was 78.5%?74.7% and 71.1% less than that in the control respectively, the average soluble salt content in different treatments and the control is very significant difference (SSR 0.01 ) on statistic...

Soluble salt content and different salt ions content were measured in different density Vicia villosa fields for studying the effect of soil salt restraint on Vicia villosa. The results showed that in 0~100 cm soil layer, the average soluble salt content in high, middle and low density Vicia villosa fields was 78.5%?74.7% and 71.1% less than that in the control respectively, the average soluble salt content in different treatments and the control is very significant difference (SSR 0.01 ) on statistic analysis; in 0~20 cm soil layer, the average soluble salt content decreased most obviously; With deepening of soil layer, various of soluble salt content and the salt ions content was as following: high in surfacelow in middlehigh in bottom; With decrease of soluble salt content, the salt ions content changed accordingly, K+/Na+ ratio reduce in salinization soil after planting Vicia villosa; In different density Vicia villosa treatments, K+,Na+,Ca2+,Mg2+ and Cl- had obvious law ,but SO42 was not. It is considered that planting Vicia villosa in salty land will play very important role in both developing economy and improving ecology environment in west salinization land.

通过田间试验测定不同密度毛苕子(Viciavillosa)处理的可溶性盐分及盐分离子,研究了毛苕子对次生盐碱地的抑盐效应。结果表明:在0~100cm的土层中,高、中和低密度毛苕子地的平均可溶性盐分分别较对照降低78.5%,74.7%,71.1%;各处理间的平均可溶性盐分和对照比差异达极显著(SSR0.01);可溶性盐分降低最显著的是0~20cm土层;毛苕子对可溶性盐分和盐离子层次分布影响结果是形成表层高—中层低—下层高的态势;随总可溶性盐分量的减少,盐分离子组成也相应地发生变化,毛苕子能显著增大盐碱地的K+/Na+;不同密度毛苕子处理的K+、Na+、Ca2+、Mg2+、Cl-规律性较好而SO42-欠佳。毛苕子改良盐碱地可开发盐地草产业,生态、经济效益俱佳,在西部内陆区次生盐碱地开发中具有广泛的农学意义。

The physiological features of Lycium barbarum, growing in different saline habits by its origin, primary or secondary, were compared and analyzed in this paper. The results show that the impact of secondary saline habitat on Lycium barbarum is stronger than that of primary saline habitat; the amount of photosynthetic pigment, proline, protein and nucleic acid in the leaves of the plants lived in secondary saline habitat is larger than that of living in primary saline habitats but varies in juvenile and adult...

The physiological features of Lycium barbarum, growing in different saline habits by its origin, primary or secondary, were compared and analyzed in this paper. The results show that the impact of secondary saline habitat on Lycium barbarum is stronger than that of primary saline habitat; the amount of photosynthetic pigment, proline, protein and nucleic acid in the leaves of the plants lived in secondary saline habitat is larger than that of living in primary saline habitats but varies in juvenile and adult plants. The experiment of electrophoresis of soluble protein gel indicated that the number and coloring of the spectrum belts of uneven-aged Lycium barbarum planted in same sites are similar, while two belts with distinctly different color appear in the spectrum of the plants situated in different environment. The changes of the content levels of photosynthetic pigment, proline and the protein metabolism may imply an adaptive response of the plants, which favors the resisting of plants to salt stress. RAPD analysis showed that DNA variation, which followed metabolism modification in the plant, occurred to be adapted to the salt environment with the growth and development of Lycium barbarum.

调查了生长在不同盐碱地宁夏枸杞(LyciumbarbarumL.)的生理特征。研究发现,次生盐碱地对枸杞的影响要大于原生盐碱地,光合色素含量、脯氨酸含量、蛋白质和核酸均表现为生长在次生盐碱地的枸杞体内含量高,但在幼株和成年植株体内的变化各不相同。可溶性蛋白凝胶电泳显示,对不同年龄的植株在同样的生境中谱带条数和着色深浅基本一样,但不同生境中有两条谱带的着色深浅有明显的不同。分析表明,光合色素含量、脯氨酸含量和蛋白质代谢的这种变化可能是植物的一种适应性反应,它有利于植物抵抗盐胁迫的伤害。RAPD分析表明宁夏枸杞在生长发育过程中,为了适应环境,在代谢发生了变化后,其遗传物质DNA也发生了一定的变异。

 
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