植被根系,vegetation roots
1)vegetation roots植被根系
1.Field surveys and experimental analysis were used to detect the relationship between spatial changes ofvegetation roots and soil environmental factors under different grazing gradients in an alpine meadow.以野外样地调查和室内分析法研究了不同放牧梯度下高寒小嵩草草甸的植被根系空间变化和土壤环境因子间的关系。
英文短句/例句
1.Mechanics Analysis of Vegetation Root in Ecology Slope Protection植被根系护坡力学效应分析途径研究
2.Research and Design on the Platform of Image Acquisition in the Slope Vegetation Roots Monitoring Technology护坡植被根系监测技术中图像采集平台的研究与实现
3.Imagery Processing Technology in Slope Protection Vegetation Root System Monitor Applied Research图像处理技术在护坡植被根系监测中的应用研究
4.Research on Resistance Cracking and Enhancement Mechanism of Plant Root in Slope Protection by Vegetation植被护坡中植物根系的阻裂增强机理研究
5.Roots of different dominant tree species in zonal vegetation in southern subtropical China.南亚热带地带性植被优势树种根系的研究
6.Study on Root Biomass and Carbon Storage of Different Vegetation Communities in Hilly Red Soil Region红壤丘陵区典型植被群落根系生物量及碳储量研究
7.The impact of voles density on plant community structure and root system模拟条件下布氏田鼠对草原植被的作用2——鼠密度对植物群落结构及根系的影响
8.Their roots hold the soil tightly together.这些植被的根茎能将土壤紧紧地抓住，
9.Lythrum salicaria is a perennial herb, its root system is a fibrous like tap root system.千屈菜Lythrumsalicaria为多年生宿根植物，须根状直根系。
10.vegetation and econsystem mapping植被和生态系统制图
11.It is probably the ultimate channel for bringing the scourge of sand under permanent control to change from artificial vegetation to natural vegetation as soon as possible .人工植被尽快向大面积天然植被过度，也许是根治沙害的终极途径。
12.Effects of Partial-roots Fertilization on the Growth of Sisal Hemp Plant and Roots部分根系施肥对剑麻植株和根系生长的影响
13.Study on the Vegetation Type and Floristic Characteristics of Beiji Island;北麂列岛的植被类型和植物区系研究
14.The host plants were ornamental plants, perennial/biennial root garden plants, woody flower plants, cover plants and pulpy plants, and so on.为害的寄主植物有观赏树木、宿根园林植物、木本花卉植物、地被植物及多浆植物等。
15.The roots of many orchids and other epiphytes developed a sheath of dead cells, the velamen, which helps to absorb water from the atmosphere.许多兰科植物的根和一些附生植物的死细胞鞘以及根被都可以帮助植物从空气中吸收水分。
16.Studies on Root System and Fleshy Root Structure of Cycas;苏铁属植物的根系类型及肉质根的解剖研究
17.an arid region with little or no vegetation.一个干旱贫瘠、有很少或根本就没有植被的区域。
18.Vegetation restoration is key measures of combating desertification.植被恢复是治理沙漠化土地的根本措施。
相关短句/例句
vegetation system植被系统
1.Elastic limit and plastic limit appear after a disturbance tovegetation system.植被系统受到干扰后,会出现弹性极限与塑性极限。
2.This paper analyzes the relationship between groundwater and the ecologyvegetation system in arid area based on quantifying the goals of ecological regeneration in the Shiyang River Basin,and some measures are put forward for social and economic development in the drainage basin based on implementing water-saving irrigation and building the Minqin Oasis as an ecological special region.通过分析地下水与干旱区生态植被系统的关系,在量化流域生态恢复目标的基础上,提出了石羊河流域经济发展与生态保护对策。
3)plant covering植被群系
4)plant roots植物根系
1.Influence ofplant roots on heat and moisture migration in vegetation soil bed;植物根系占位对土壤热湿迁移的影响
2.Effects and mechanisms ofplant roots on slope reinforcement and soil erosion resistance:A research review;植物根系固坡抗蚀的效应与机理研究进展
3.Effects ofplant roots on soil anti-erosion;植物根系对土壤抗侵蚀能力的影响
5)plant root植物根系
1.Advances in CT image segmentation technology forplant roots in situ;植物根系原位CT图像分割方法的研究进展
2.In order to discuss the reinforced effect ofplant root from the aspects of mechanical mechanism,authors analyzed the rule that howplant roots reinforced the slope by direct shear test and numerical analysis method.为了从力学机制上探讨植物根系的锚固作用,采用室内大型直剪试验和数值分析方法,对植物根系锚固的有关规律进行分析。
3.Most kinds ofplant root uptake models from the first one presented by Gardner in1960 to the latters are reviewed and classified.综述了自1960年Gardner第1个单根吸水模型建立以来的植物根系吸水模型，对模型加以分类，并对其优缺点和适用性进行了阐述，可供现代节水灌溉的理论和应用研究参考。
6)plant root system植物根系
1.Effects of elevated atmospheric CO_2 onplant root system: A review;大气CO_2浓度升高对植物根系的影响
2.According to the characteristics of geometrical modeling which can describe exactly the structural features ofplant root systems,a method about modeling ofplant root systems is proposed.根据几何构造模型能够准确表达植物根系形态结构的特点,提出了一种植物根系三维建模方法。
延伸阅读
茶树根系吸收矿质元素茶树根系吸收矿质元素absorption of mineral elements by the root system of tea plant茶树根系吸收矿质元素、absorption()fmineral elements by the root systemof tea Plant)茶树根系从土壤和水中吸收离子状态元素的过程。根系对矿质元素的吸收是一个生理过程.受到内外因素的形响。茶树根系是吸收矿质元素的主要器官。茶树根系吸收矿质元素以根尖为多，离幼根尖端2一3匣米处礴的移动l为最大。根毛部是根尖吸收矿质离子最活跃的区城。根系吸收矿质离子有被动吸收和主动吸收(或主动运拍)。被动吸收不需要代谢供能，包括扩散、离子交换吸附，杜南(Donnan)平衡:主动吸收是靠细胞代谢供能而递浓度差吸收矿质离子。矿质离子从根部表面进入木质部有两条途径:一是经共质体的主动运愉;二是经质外体从内皮层进入共质体到中柱。一般说来，主动吸收是根系吸收矿质的主要形式。茶树根系对矿质的吸收受年龄、生育期、代谢强弱、修剪等的形晌。成龄茶树的吸收利用率.氮是50%，确是22.5%，钾是45%。幼龄茶树分别为25%、4%、7.5%。在全年中，氮和钾的吸收主要集中在4一11月:礴则集中在4一6月和9月，各占总吸收最的均%和38%。茶树修剪后一个月左右，根系对氮、碑、钾的吸收还在减少，氮和钾的吸收恢复较快，恢复后，以对氮的吸收为最迅速。土坡条件影响茶树根系对矿质的吸收。①土坡水分和氧气:土坡通气良好，氧气充足，CO:浓度减少，呼吸增强，促进根系生长和对水、肥的吸收;土坡水分过多，氧气缺乏，CO:浓度增高，抑制有筑呼吸，降低根系对矿质的吸收。土城水分不足，限制矿质盐类的溶解;燕腾速率降低，亦阻碍矿质离子向上运愉。因此.土坡水分常控制或促进茶树对矿质元素的吸收、利用。②上城溶液浓度:在一定范围内，根系吸收矿质元素的数量随施肥t的增加而提高，但超过一定量时，离子载体与矿质离子结合达到饱和，根系吸收矿质离子不再增加。祁门茶叶研究所多年研究表明:梅5()0克氮可收获鲜叶25千克左右.亩产鲜叶一吨左右.年施氮以20一30千克为宜.超过30千克，虽能提高产量.但利用率不高。③土城沮度:根系吸收矿质随土沮升高而加快，以25一30℃为宜。沮度过高或过低都抑制根系对矿质元素的吸收。④土坡pH:宜茶的土城pH为4.5一6.5，以pHS.2一5.6最好。一般说来，阳离子的吸收随上坡pH上升而增加，阴离子的吸收随pH的上升而降低。
