地下根

Shrubs or trees, deciduous or evergreen, often from underground woody burl or producing thickened horizontal underground rhizomes.

灌木或乔木，落叶或常绿，通常生于地下木质瘤或产加厚的水平的地下根状茎。

Fuwankia organic potash fertilizer can improve vegetable growth and increase the yield of cucumber, small cabbage, and celery in sunlight greenhouse.

西芹的株高、茎粗、地上植株、地下根重以及总生物量增加。富万钾有机钾肥能明显促进蔬菜生长，提高产量。

The study is carried out that the comparison of fine root production, decomposition and distribution along with Korean pine and broad-leaved climax forest succession; the fine root contribution to the belowground C and N storage along with Korean pine and broad-leaved climax forest succession; and the comparison of belowground C and N storage among the Korean pine and broad-leaved climax forest, three dark-conifer forests, a betula ermanii forest along altitude.

研究内容包括：原始阔叶红松林及其不同演替阶段的次生林中细根的生长和周转、分解与分布的特征，阐明在不同演替阶段细根的变化；原始阔叶红松林及其不同演替阶段的次生林中细根对根系、土壤和林地地下的碳、氮贮量的影响，分析在不同演替阶段细根周转对地下碳、氮贮量的贡献；以及对不同垂直海拔高度分布的不同类型的原始森林中细根和根系生物量的变化，及细根对根系、土壤和林地地下碳、氮贮量的贡献进行了研究。

The biological characteristics and the rhythm of growth and development of cultivated Asiatic moonseed (Menispermum dahuricum DC.) were studied in terms of morphological characteristics, habitat conditions, phenological phase, rhizome and main vine above ground.

以人工栽培的北豆根为研究对象，从形态特征、生境条件、物候期、地下根状茎及地上主蔓生长等方面，对北豆根生物学特性及生长发育规律进行了研究。

Type genus of the Psilophytaceae: genus of small wiry herbaceous Paleozoic plants with underground rhizomes and ''.

裸蕨科的模式属；古生代植物，为小而坚韧的草木，具地下根状茎和顶生的孢子囊群。

This paper gives introduction on measures of Rooting- zone restriction. The theoretical basis (Above and below ground correlation、Local root nutrition、Growth redundancy)、Rooting-zone restriction to the growth and development of plants、Rooting-zone re- striction RZ...

本文介绍了园艺作物限根栽培的措施和理论，依据地上和地下相关性、根系局部营养生长冗余、限根对植株生长发育的影响、限根的生理反应和作用机制以及限根技术的应用等方面探讨了其在蔬菜栽培中的应用。

There were so huge roots and rhizome system under ground that they could absorb water from deep soil; Stems and leaves on ground could decrease water loss. The huge biomes of G.uralensis had strong drought resistance superiority. In the same time, drought stress significantly restrained the growth of G.uralensis. On the contrary, in some extent, drought stress could improve the growth of roots under ground and resulted in increasing the rate of root/shoot; moreover, made the color of velamen become red and enhanced the output and the quality.

主要结论如下：(1)在形态与生长反应方面，观察发现甘草地下和地上两部分都具有适应干早环境的特征，地下有庞大的根和根茎系统，吸水能力很强，地上茎叶形态表现出很强的节水能力，并且甘草群体抗旱优势很强；同时也观测到干旱对甘草地上茎叶生长抑制较为明显，但在一定程度上对地下根系生长起到了促进作用，导致根冠比增大、根皮颜色变红，即在产量和质量方面都有了很大地提高。

The Changjiang estuary Dongtan wetland was taken as the study area,the stems and roots of pioneer plant Scirpus triqueter were collected and buried in the high-tide flat and the beach within a dam to study the variations in mass,carbon and nitrogen contents in the putrefaction and decomposition process of Scirpus triqueter,and the main factors affecting the plant decomposition were analyzed.

以长江口崇明东滩湿地为研究区域，采集了先锋植物藨草的地上茎和地下根部分，分别埋藏于高潮滩和堤内两处不同地点，研究了植物不同部位组织在腐烂分解过程中质量及其碳、氮元素含量的变化，分析了影响植物分解的主要因素。

Ginger (Zingiber officinale Rosc.), an important economic crop, can be used as spices, medicine and flavoring. It propagates through the form of underground rhizomes mainly.

生姜是重要的经济作物，可用作香料、药物和调味品，它主要通过地下根状茎繁殖。

The results show that, the nitrate-N concentration in groundwater in the reed area was 0.2~0.8mg/L and significantly lower than that in surrounding wells (more than 20mg/L), and the reed wetland can remove nitrate pollution in shallow groundwater. The distribution of denitrifying bacteria showed obvious rhizosphere effect, and the higher biodenitrification in natural reed wetland was related to the distribution of denitrifying bacteria. There was a negative relationship between the nitrate-N concentration and the number of denitrifying bacteria in groundwater.

结果表明：芦苇区浅层地下水中硝酸盐氮仅为0.2~0.8mg/L，远低于湿地周围井水中硝酸盐氮质量浓度（大于20mg/L），芦苇湿地能够去除浅层地下水中硝酸盐污染；反硝化细菌在土壤中的分布呈现明显的根际效应；野生芦苇湿地较强的生物脱氮作用与反硝化细菌分布有关，地下水中硝酸盐氮含量与反硝化细菌分布呈负相关。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。