根际,Rhizosphere
1)Rhizosphere[英]['raiz?,sfi?][美]['ra?z?,sf?r]根际
1.Transformation of Cu forms in Cynodon dactylon rhizosphere soil of copper tailings yard;铜尾矿库区狗牙根根际土壤铜的形态变化
2.Distribution of heavy metals forms and its affecting factors in rhizosphere soils of Hippochaete ramosissimum in large-scale copper tailings yard;大型铜尾矿库区节节草(Hippochaete ramosissimum)根际土壤重金属形态分布与影响因素研究
3.Adsorption and desorption characteristics of Cd、Pb in rhizosphere and non-rhizosphere;Cd、Pb在根际与非根际土壤中的吸附解吸特点
英文短句/例句

1.Preliminary Study on Phosphobacteria in Rhizosphere and Nonrhizosphere of Sweet Cherry Rootstocks甜樱桃砧木根际和非根际解磷细菌研究初报
2.Study of the Relation Between Plant Root Secretions to Root Region Microorganism根的溢泌物与根际微生物关系的研究
3.The Study of Arbuscular Mycorrizal Resources in the Rhizosphere of Fengjie Navel Orange (Citrus Sinensis Osbeck);奉节脐橙根际丛枝菌根资源调查研究
4.Effects of Nodule Bacteria Inoculation on Pea Rhizosphere接种根瘤菌对豌豆根际微生境的影响
5.A survey of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Camellia sinensis in Laoshan崂山茶区茶树根际丛枝菌根真菌调查
6.Study on microbe group of Stylosanthes guianensis root and rhizosphere in Mao Village of Guilin柱花草根系与根际微生物类群的研究
7.The effect of organic manure on microbial numbers, enzyme activities and available phosphate content in rice rhizosphere was studied on red soil by using the rhizobox proposed by Youseff and Chino.利用根际箱在红壤上研究了有机肥对水稻根际有效磷、根际微生物和土壤酶活性的影响。
8.Legume rhizospheres stimulate more growth of rhizobia than do the rhizospheres of nonlegumes or soil apart from the roots.豆科植物的根际比非豆科植物的根际或离根土壤更能刺激根瘤菌的生长。
9.The Effect of Arbuscular Mycorrhiza Fungi in Rhizosphere Microecology of Robinia Pseudoacacia;丛枝菌根真菌对刺槐根际微生态的作用
10.Effects of Drought Stress on Rhizosphere Enzyme, N, P, K and Root Organic Acid干旱对根际土壤酶、氮磷钾及根部有机酸的影响
11.Effects of Rhizosphere Medicine on Mycorrhizal Formation and Growth of Populus Cuttings根际保健剂对杨树菌根形成和生长量的影响
12.K NUTRITION IN RHIZOSPHERE AND CHARACTERISTICS OF ROOTS OF FLUE-CURED TOBACCOS DIFFERENT IN GENOTYPE不同烤烟基因型根际钾营养和根系特性研究
13.Study on Culture Characteristics of an Effective Phosphobacteria Isolated from Chinese Pine Mycorrhizal Rhizosphere油松菌根根际一株高效磷细菌培养条件的研究
14.Effects of rhizosphere CO_2 concentration on root growth and activity of netted muskmelon根际CO_2浓度对网纹甜瓜根系生长和活力的影响
15.Five new records of arbuscular mycorrhizal fungi associated with Prunus mume in China梅根际丛枝菌根真菌五个中国新记录种(英文)
16.Chemical behavior of heavy metals in rhizosphere--Ⅱ. The rhizosphere effect of desorption of adsorbed Cu in soils.重金属在根际中的化学行为——Ⅱ.土壤中吸附态铜解吸的根际效应
17.Effect of Metolachlor on Biological Activities in Plant Rhizosphere and Non-rhizosphere Soil;异丙甲草胺对植物根际与非根际生物活性的影响研究
18.The Effect Factors on Colonization in the Rhizosphere and Growth-promoting of Streptomyces Vinaceusdrappus 506 and Rhizosphere Effect;链霉菌S506在根际定殖及促生功能影响因素及根际效应研究
相关短句/例句

mycorrhizosphere菌根根际
1.New method of bioremediation-mycorrhizosphere bioremediation;生物修复的新方法——菌根根际生物修复
2.Diversity of soil microbial communities in the mycorrhizosphere of five afforestation tree species in the Loess Plateau.;黄土高原5种造林树种菌根根际土壤微生物群落多样性研究
3.Microbial communities in Pinus tabulaeformis mycorrhizosphere under different ecological conditions;不同生态条件下油松(Pinus tabulaeformis)菌根根际土壤微生物群落
3)root and rhizosphere根系与根际
1.Study on microbe group of Stylosanthes guianensis root and rhizosphere in Mao Village of Guilin柱花草根系与根际微生物类群的研究
4)rhizosphere and non-rhizosphere soils根际与非根际土
1.The speciation variation and phytoavailability of Zn,Cd,Ni in rhizosphere and non-rhizosphere soils for 5 kinds of remediation plants were studied using sequence extraction test and mathematical statistic method in the phytoremediation site of west colliery in Fushun.以抚顺西露天采场60平盘5种修复植物根际与非根际土为研究对象,运用顺序提取实验和数理统计分析方法研究了根际与非根际土中Zn、Cd、N i的形态分布与植物有效性。
5)Rhizosphere and nonrhizosphere根际与非根际
6)Rhizosphere and non-rhizosphere zones根际和非根际
延伸阅读

根际根际rhizosphere  根际中的氮素.主要是当季新加入的钱态氮肥料,呈现亏缺梯度;而全氮的差异不显著。不论是硫按、碳按和尿素,离根1毫米的上壤中亏缺率可达30%~70%,并随离根表面的距离呈指数曲线的变化。亏缺范围在10毫米以内梯度最大,表明这一范围是氮素供应的主要部位。旱作与水稻亏缺曲线上有所不同,NH4一N在根际的最大亏缺区处于离根1~2毫米之外,0~2毫米内存在相对累积区(图7)。近根的这种相对累积,经证明是由于根系向外溢泌的分泌物中含有的氮,以及根毛等脱落组织所产生的结果。而水稻的分泌物和脱落物均低于旱作,因而这种根周围相对累积现象不明显。离根面距离(nlnl)10 20 30 40才产.一NH;,2 50:NHZ,2 CO 10 2(J30︵欲)辞岌归之,霍即 (a)水相离根面解卜离(.llnl-《b、玉米 图7两种NH丁一N月巴料在作物根际土壤中的分布情况 有效磷的亏缺仅限于离根1毫米左右,相当于根毛长度。在砂性土壤上亏缺范围可扩展到4毫米以内。磷亏缺的范围很窄的原因是与它在土壤中有效扩散系数很小有关,通常为10~’~1。”’厘米/(厘米,·秒)。显然,仅仅依靠土壤中有效磷径向扩散以供应根系吸收是难以满足需要的。而依靠新生根的伸展不断获取根附近新土区中的磷则是主要的途径。 钾的梯度变化类似于按态氮,但亏缺范围比后者要小,通常在离根8~10毫米的范围内.代换性钾和迟效性钾(l摩尔/升HCI提取)有类似的亏缺趋势。但是,在土壤水分含量较高时有效钾在根际可出现相反的向根富集的现象。 有效性锰、锌和硅通常也在根际出现亏缺。硼和钥在根际的含量变化取决于它们在t壤溶液中的浓度。浓度低时可出现亏缺,浓度高时则累积. 根际亏缺梯度的存在有利于七壤养分向根扩散。但是,亏缺量过大时则影响根系的吸收。 土壤溶液中N〔)了、S()军一、CaZ十、MgZ’等含量相对较大。因此,这些养分通常作为溶质随着植物蒸腾流的水势差向根迁移,即质流过程。通过这种过程流向根表面的量一般是供大于求,由此而出现顺浓度梯度,累积率可达10%~30%,但梯度存在的范围很窄.通常不超过5毫米。 有机物根际土壤中有机碳含量比原上体明显增加。其来源主要是根系分泌物,这些物质在化学卜具有多样性.从简单的低分子量的有机酸、糖、氨基酸,到复杂的维生素和植物激素;还有大分子的多种碳水化合物、肤和蛋白质,以及根组织的脱落物等等。这些有机碳约占光合产物的30%左右。此外,微生物在根际的迭代更新,残体的生物量也大大超过原1:体,成为根际有机物质的上要组成成分。