沉水植物

chén shuǐ zhí wù
  • submerged plant
沉水植物沉水植物
沉水植物[chén shuǐ zhí wù]
  1. 两种沉水植物对黄颡鱼(Pseudobagrusfulvidraco)夏花培育水体主要水质因子的影响

    Effects of Two Kinds of Submerged Plant on the Quality of Waters Cultured with Pseudobagrus fulvidraco Fry

  2. 沉水植物光合作用中碳同位素分馏的分析表明,沉水植物的δ13C值同水中溶解无机碳的浓度有关,从而与影响其改变的各种因素相关。

    According to the model of stable carbon isotopic fractionation in submerged plant , the concentration of dissolved inorganic carbon ( DIC ) is an important environmental factor influencing the δ 13C of submerged plants .

  3. 保安湖沉水植物分布的GIS模拟

    GIS simulation on the distribution of submerged macrophytes in Baoan Lake

  4. N和P含量以沉水植物最高,浮叶植物次之,挺水植物最低。

    N and P contents were highest in the submersed and lowest in the emergent , intermediate in floating leaved plants .

  5. 两种沉水植物对Cu~(2+)的富集作用以及生理生化效应研究

    Accumulation of Cu ~( 2 + ) and Responses of Physiological and Biochemical Functions in Two Submerged Macrophytes

  6. 椭圆萝卜螺Radixswinhoei(H.Adams)对三种沉水植物的牧食选择

    Snail Radix swinhoei ( H.Adams ) herbivory on three submerged plants

  7. 而同时由于水体中无机碳δ~6(13)C组成较高,使得沉水植物叶子的δ~(13)C大于挺水植物和浮水植物。

    And at the same time , because δ 13C of inorganic carbon in water is higher than that of CO2 in air , δ 13C of leaves of submerged macrophytes is higher than that of leaves of floating and emergent macrophytes .

  8. 沉水植物中粗纤维素占干物质的比重是影响其吸附容量的重要因素之一,其细胞壁上多糖的OH和CONH2可能是吸附的活性中心;

    The content of crude cellulose in dry matter is one of the main factor affecting the biosorption capacity of a submerged aquatic plant , and OH and CONH_2 groups of polysaccharides on cell wall maybe are active center of biosorption ;

  9. 因此,我们认为,丝状绿藻腐烂过程中引起的水质指标变化,尤其是降低溶解氧、降低水下光照强度、降低pH和使水体温度上升是沉水植物黑藻死亡的主要原因。

    Of water quality in the process of filamentous algae decomposing , especially the decreases of DO , light intensity under water and pH , and the increases of water temperature were the main reasons contribute to the death of Hydrilla verticillata .

  10. 在以浮水植物和沉水植物净化畜禽养殖废水时发现,浮水植物浮萍对养殖废水有很好的净化效果,其对COD去除率可达到43.83%,总磷的去除率达到95.95%。

    The results from livestock wastewater purification with floating and submerged macrophytes showed that the floating duckweed had better purification effect on wastewater and elimination rates were 43.83 % for COD and 95.95 % for total phosphorus .

  11. 沉水植物(submergedmacrophytes)是指植株全部或大部分沉没于水下营固着生活的大型水生植物,是水生态系统的重要组成部分和主要的初级生产者。

    Submerged macrophytes are large aquatic plants with the whole body or most of it sinking in the underwater . They act as the main primary producer in aquatic ecosystem , which is an important constituent part .

  12. 研究了耐寒沉水植物伊乐藻(Elodeanuttallii)在冬季低温条件下的生长状况,以及不同生物量的伊乐藻对污染水体的净化效果。

    The growth status of Elodea nuttallii and the purification effect on polluted water by different biomass in low temperature in winter are studied .

  13. 即适当外源氨氮浓度下,沉水植物通过增加沉积物蛋白质和氨基酸等含量,提高了沉积物有机氮的生物有效性。(2)区域湖泊沉积物DOM特性差异。

    The results indicated that the increase of the content of protein and amino acid resulting from extraneous NH4 + - N submerged plants enhanced the bioavailability of dissolved organic nitrogen in sediments . ( 2 ) The difference of fluorescent characteristics of DOM in lake sediments .

  14. 挺水植物和浮叶植物均能适应这种底质条件;在水温低于30C或水深小于1m的情况下,五里湖的底质条件对沉水植物生长十分有利;

    The sediment condition was suitable for emerged plant and floating-leaved plant all the time , and even favorite to submerged plant when the temperature was below 30 ℃ or the water depth was less than 1m .

  15. 鄂陵湖浅层深2m的冻结湖相沉积物中埋藏植物屑保存完好,植物屑均来源于同一种沉水植物&龙须眼子菜(Potamogetonpectinatus)。

    The plant tissues , which were well - preserved in 2 m - thick shallow frozen lacustrine sediments of Ngoring , came from the same species of submersed plant , Potamogeton pectinatus .

  16. 模拟实验研究表明,夏季90天的时间内,呼伦湖沉积物约向上覆水体释放6.9×105t的DIC,为湖中沉水植物的光合作用提供了大量的碳源。

    Simulation study shows that the sediment release of about 6.9 × 105t of DIC to overlying water of Hulun within 90 days in summer , which provide a lot of carbon for the photosynthesis of submerged plants in lake . 4 .

  17. 另外,湿地植物光谱还受水体吸收作用的影响较大,特别是在近红外波段(800-1000nm)处,沉水植物的反射率较挺水和浮水植物有明显不同。

    Water absorption influenced the hyperspectral curves of wetland plants a lot , especially in Near Infrared ( NIR : 800-1000nm ) where the reflectance is significantly different between emerged species and submerged species .

  18. 壳聚糖预处理对7种常见沉水植物初级生产力的影响

    Effects of Chitosan on Elementary Productivity of Seven Common Submersed Plants

  19. 沉水植物在富营养化水体中的环境效应研究

    Study on the Environmental Effect of Submerged Macrophytes on Eutrophic Water

  20. 大型沉水植物苦草的光谱特征识别

    Identification of the spectral characteristics of a submerged plant Vallisneria spiralis

  21. 5种沉水植物无性繁殖和定居能力的比较研究

    Comparative study of regeneration and colonization ability in five submersed macrophytes

  22. 沉水植物不同处理方式下自然干燥的试验研究

    Study on natural drying of submerged vegetation by different processing means

  23. 沉水植物修复受污水体净化效能的研究

    Research on Purification Efficiency of Polluted Water Remediation by Submerged Macrophytes

  24. 沉水植物对污染水体的水质改善效应研究

    Study on Water Improvement Effect on Polluted Water by Submerged Macrophytes

  25. 沉水植物衰亡过程中氮磷释放规律及温度影响的研究

    Release Rule Research of Submerged Plants with Temperature Impact in Contabescence

  26. 沉水植物对沉积物中磷赋存形态影响的初步研究

    Study on submerged macrophyte effect on phosphorus pools in the sediment

  27. 沉水植物生态恢复机理的探索研究

    The Exploration Research to the Mechanism of Submerged Plant Ecology Restores

  28. 柔性沉水植物切割捡拾装置的试验研究

    Experimental Investigation on Cutting & Picking Up Unit of Flexible Sunken Plant

  29. 水沉水植物沉积物体系氮素赋存特征研究

    Study of Nitrogen Endowment and Existence Characteristic in the Water-Submerged Plant-Sediment System

  30. 几种沉水植物营养繁殖体萌发的光需求研究

    Light demand for brood - bud germination of submerged plant