Genetic diversity of arbuscular mycorrhizal fungi associated with four Alnus species in Changbai Mountains:A nested PCR-RFLP analysis.;
长白山四种赤杨丛枝菌根真菌侵染多样性的巢式PCR-RFLP分析
Genetic diversity analysis of Frankia strains in nodules of three Alnus species from Changbai Mountain by REP fingerprinting;
长白山三种赤杨根瘤内Frankia基因多样性的REP分析
Genetic Diversity of Frankia in Nodule of Alnus in Changbai Mountain Revealed by IGS PCR-RFLP;
长白山赤杨根瘤内Frankia的基因多样性分析
They were identified as hexacosanolic acid (1) triacontanolic acid (2) epi alnusenol (3) β sitosterol (4) paeonol (5).
从牛心朴子草中分得五个物质，据理化常数、波谱分析与文献对照鉴定为①二十六烷酸②三十烷酸③表赤杨醇④β－各甾醇⑤牡丹酚。
Modifiable Areal Unit Problem of Species Diversity in Sub-Natural Alniphyllum fortunei Forest;
拟赤杨天然林物种多样性研究的可塑性面积单元问题
Fractal Properties of Distribution Pattern of Alniphyllum fortunei Populations in the Meihuashan Nature Reserve in Fujian, China;
福建梅花山国家级自然保护区拟赤杨种群分布格局的分形分析
A Study on Population Structure and Dynamics of Alniphyllum fortunei in Meihuashan Natural Reserve;
梅花山自然保护区拟赤杨种群年龄结构与动态分析
Ultrastructure of Alnus hirsuta Root Nodule Endophyte;
毛赤杨根瘤内生菌的超微结构研究(英文)
Mixed planting techniques by Pinus koraiensis, Larix leptolepis with Alnus tinctoria and Betula platyphylla;
红松、日本落叶松与色赤杨、白桦等阔叶树种混交造林技术的研究
Afforestation with Alnus tinctoria to build fire prevention forest belt;
应用色赤杨营造防火林带试验研究
The results showed that fire resistance or Alnus tinctoria was beeterbetter than that of other broadleared trees, and it had a significant natural fire resistance effect.
本文对辽东地区色赤杨林分的生长量、结构特征、物候期、地表可燃物种类组成及可燃物载量进行调查研究，并在室内对当地林木凋落物的燃烧性进行试验测定，在野外林分中对色赤杨自然阻火情况进行调查，证明该树种的抗火性能较强，不易燃烧，适宜在大面积针叶林中营造防火林带。
Alniphyllum fortunei forest is a seral stage of evergreen broadlleaf forest sere ,mainly occurs in red and yellow soil mountain of eastern central subtropics below 130.
拟赤杨林是亚热带落叶阔叶林的一个群落类型 ,属于常绿阔叶林演替系列的一个演替阶段 ,主要见于东部中亚热带地区海拔 1 30 0m以下的红壤和黄壤山地山坡中下部环境比较湿润的地方 ,本文研究划分出 3个群丛纲和 1 3个群丛。
Study on Interspecific Competition Among Dominant Tree Species in Alniphyllum fortunei Secondary Forest in the Meihuashan Nature Reserve
梅花山拟赤杨次生林优势树种种间竞争研究
It is concluded that the mixed stand can be able to be self-rich in soil fertility, which benefit the maintenance and improvement of site fertility under Chinese fir plantation.
表明杉木拟赤杨混交林具有良好的培肥土壤功能，对杉木人工林的地力维持和提高有重要意义。
The weeping-willow, the weeping-birch, and other trees of early and pendulous shoots, flourish in these favoured recesses.
这些幽静去处得天独厚，垂柳，赤杨及其他抽枝发芽较早的树木长得非常茂盛。
Solution to Ruptured Line of Terrain by DEM Based on Yang Chizhong Method
基于杨赤中法DEM对地形断裂线的处理
The Research of Mechanism of GA_3 in Regulating Abscission of Petiole of Euonymus jaqonica Thumb Stem Segment
赤霉酸调节大叶黄杨茎段叶柄脱落的机理研究
The Effects of Gibberellic Acid on Photoassimilate Reallocation Pattern of the Poplar Cutting Seedling
赤霉素作用下杨树光合同化物再分配的格局
Analysis of DEM Slope and Slope-aspect Based on Yang chizhong’s Filtering Estimation Interpolation Method;
基于杨赤中滤波推估插值法的DEM坡度、坡向的分析
Effects of GA_3 on Floral Bud Formation in Myrica rubra cv. Dongkui under Acid Rain Stress
酸雨胁迫下赤霉素诱导东魁杨梅花芽孕育的生理效应
Design and implementation of terrain profile analysis based on Yang Chek filtering estimation
基于杨赤中滤波推估法的地形剖面分析的设计与实现
Effects of pre-harvest spraying with SA and GA_3 on physiology and storability of post-harvest Gonggan mandarin cultivar fruits
采前喷布水杨酸(SA)和赤霉素(GA_3)对采后贡柑果实生理及贮藏效果的影响
The equator. Used with the.
赤道赤道。和the连用
budget(tary) deficit
预算赤字，财政赤字
financial deficit
财政赤字，预算赤字
Equatorial Customs Union
赤道关税同盟(赤道税盟)
celestial paralle
赤纬平行圈赤纬圈、赤纬平行圈
The wood of the box plant.
黄杨木黄杨树的木头
Seedling Measurement of Hybrids of Populus alba and P.alba×P.glandulos,P.alba and P.tomentosa
银白杨与84K杨、毛白杨杂交及苗期测定
