查询词典 Leucaena

The sixteen plants are firstly divided into six types according to evaluation grades and subject function statistical method:the first type is Cajanus cajan and Crotalaria mucronata,the best adaptability ,which can be used pioneer plant or constructive species; the second type is Cynodon dactylon,the better adaptability, which can be used constructive species ;the third type is Eragrostis curvula, Paspalam notatum,which can be used constructive species on rotten rock slope ; the forth type is kummerowia striata,Lotus corniculatus and Vitex negundo.The adaptability is centered,and can be used protection species and auxiliary species;the fifth type is Robinia pseudoacacia,Eremochloa ophiuroides,Vitex negundo,Lespedeza formosa,Leucaena leucocephala,Desmodium sequax, Rhus chinne- nsis,which can't be plant singly and be used accessory species;the sixth is Trifolium repens,which can be used pioneer plant.

根据评价边坡防护植物适应性的十个重要指标，首次运用隶属函数和聚类分析方法，对各供试植物的边坡适应性综合排序并分为六类：第一类为木豆和猪屎豆，边坡适应性最强，适宜作为先锋植物和建群种；第二类为狗牙根，边坡适应性强，适宜与豆科植物混播，作为建群种；第三类为弯叶画眉草和百喜草，边坡适应性较强，适宜与豆科植物混播，作为风化岩边坡的建群种；第四类为鸡眼草、百脉根和马棘，边坡适应性中等，适宜作为保护种与伴生种；第五类为刺槐、假俭草、荆条、美丽胡枝子、银合欢、波叶山蚂蝗和盐肤木，边坡适应性较差，不宜单独在边坡上种植，最好与速生型豆科草本混播，作为边坡防护植物群落的辅助植物；第六类为白三叶，边坡适应性最差，但因其出苗率高、生长速度快，作为先锋植物，起到前期覆盖坡面的作用。

This study tried to select potentially the most aggressive species in hope of facilitating the making and the assessment of future conservation strategies. They include terrestrial species of Bidens pilosa var. radiata, Imperata cylindrical var. major, Brachiaria mutica, Paspalum distichum, Leucaena leucocephala and aquatic species of Egeria densa, Myriophyllum aqualicum, Eichhornia crassipes, Pistia stratiotes, Alternanthera philoxeroides.

本研究提出最具入侵潜力的外来植物，以作为未来保育策略之评估指标，主要有大花咸丰草、白茅、巴拉草、双穗雀稗、银合欢、水蕴草、粉绿狐尾藻、布袋莲、大萍、空心莲子草等。

The spectral characteristics of the vegetation canopy, including four dominant vegetation types, Leucaena leucocephala, Vitex negundo, Acacia confuse and Pandanus odoratissimus, were measured from November 2006 to October 2007 using a ground handheld spectroradiometer in the Kenting National Park of Taiwan.

本研究以垦丁国家公园为研究区，调查期间为200611月至200710月，用地面手持光谱仪，测植群冠层之光谱特徵，包含区域内之银合欢、黄荆、相思树与投等4种优势植群。

As for Leucaena leucocephala seedlings, MDA is not the main product of lipid peroxidation and Tephrosia candida seedlings do not only rely on SOD and POD action to reduce active oxygen content. Through comprehensive analysis on water holding capacity of leaf, cytomembrane permeability, MDA content and SOD, POD activity, Dodonaea viscosa seedlings show the highest drought resistance, then Leucaena leucocephala, Tephrosia candida the last.

干旱胁迫对银合欢膜系统损伤生成的主要降解产物不是MDA；山毛豆清除活性氧毒害作用主要不是通过SOD和POD的作用；通过叶片相对保水力测定及膜透性、MDA相对含量、酶活性变化情况的分析，3个树种中坡柳耐旱性最强，其次为银合欢，山毛豆居后。

The objective of this work is to find the relationship among accessions of leucaena from different geographical distribution based on diversity analysis so as to provide theoretical foundation for the evaluation, classification, utilization and selection of leucaena germplasm resources.

本研究旨在分析银合欢种质遗传多样性的基础上，探讨不同来源银合欢种质间的关系，寻找遗传差异，为银合欢种质资源的评价、分类、利用和选育种提供理论依据。

The effects of different treatments on the seed germination of Leucaena leucocephala was conducted. The experiment conditions included five temperature treatments (four constant temperatures and one alternating temperature), eight immersing treatments (80 ℃ hot water and seven treating times with 98% of H2SO4 solution).

通过用4个不同恒温、1个变温及用80℃热水、98%的浓硫酸不同时间分别浸种对新银合欢Leucaena leucocephala种子进行发芽试验，研究不同处理水平和不同处理组合对新银合欢种子萌发的影响。

The experimental result shows that after reclaiming the tailings with garbage fertilizer, Leucaena leucocephala Dewit. can grow well on the tin-zinc tailings pond while it is restricted in the tailings ponds without any reclamation; the contents of As, Pb and Zn in Leucaena leucocephala Dewit. are not high, only a little above those in normal plants.

试验结果表明：在用垃圾肥对尾砂进行改良之后，银合欢能在锡锌尾砂库上较好地生长，而在未经过任何改良的纯尾砂库上则明显受到抑制；银合欢不同组织中的As、Pb、Zn含量均不高，仅略高於一般植物的背景值。

MethodsThe mixture was extracted from Leucaena leucocephala de Wit seeds with petrol ether,purified water and 95% ethanol was studied using test tube method.The chemical components of Leucaena leucocephala de Wit seeds were preliminarily demonstrated using precipitation reaction and color reaction of multiple indicators.

方法采用试管反应法，对银合欢种子的石油醚、水、95%乙醇提取物进行研究，通过多种指示剂和显色剂的沉淀反应或颜色反应，对银合欢种子可能含有的化学成分进行初步研究。

Of planted seedlings and conserved seedlings/saplings, 51.6% and 60.7% survived respectively. Thirteen months later, the seedling heights of Ficus septica, Mallotus repandus, Maacaranga tanarius, Melanolepis multiglandulosa, and Broussonetia kaempferi, and those of Hibiscus tiliaceus, Acacia confuse, and Mellettia pinnata increased more than 130 cm and 50 cm, respectively. The densities of the planted seedlings and conserved seedlings/saplings were 1610 and 680 per hectare, respectively. On the other hand, the density of Leucaena seedlings significantly decreased; and the height of Leucaena stayed steadily during the 13 months.

试验分经银合欢药剂注射处后，采用原生树苗下栽植及保天然新苗木方式进相旧，期间经过2次植栽周边除草抚育作业，栽植苗木及天然新苗木在13个月后之存活分别为51.6及60.7%，密分别为1610株／ha及680株／ha，其中果榕、扛香藤、血桐、虫屎、构树之苗高平均生长在130 cm以上，黄槿、相思树、水黄皮之苗高平均生长在50 cm以上；相对的，银合欢新幼苗在分经药剂处前之平均高为12.3 cm，密为236，000株／ha，药剂处后13个月，幼苗平均高为15.0 cm，幼苗密低至43，000/ha。

In this study, 22 ground field plots were set up in the leucocephala invasion areas. Important value index and Two-way indicator species analysis were used. According to the levels of invasion of leucocephala that can be divided into three forest types: Vitex negundo-Leucaena leuococephala type, Acacia confuse-Leucaena leuococephala type and Murraya paniculata-Leucaena leuococephala type. The companion plants are Acacia confuse, Vitex negundo, Bridelia monoica, and Melanolepis multiglandulosa.

本研究於银合欢入侵区域，设置22个地面调查样区，利用重要值指数及双向指标种分析，得知银合欢入侵，依入侵程度不同可分为埔姜－银合欢型(vitex negundo-Leucaena leuococephala type)、相思树－银合欢型(Acacia confuse-Leucaena leuococephala type)及七里香－银合欢型(Murraya paoiculata-Leucaena leuococephala type)三型，而主要伴生树种为相思树、埔姜、土密树、虫屎等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。