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The article summarizes Amaranthaceae plants' characters on botany, species and distribution, elaborates their present situation of exploitation and problems, and explores their potentional values of research.

概括了苋科植物的植物学特徵、种属特性及其分布特点，并阐述了苋科植物的开发利用现状及其存在的问题，进而对其前景进行展望，探索了其潜在的研究价值。

Anoplophora glabripennis Motshulsky (Coleoptera: Cerambycidae) is one of the most destructive insect borers of poplar trees in China. In recent years millions of poplar trees were damaged to death or near death in"Three-North Area", which caused heavy losses economically, ecologically and socially. Through the study on host selecting behaviors and behavioral responses to plant volatiles of A.

中文题名光肩星天牛对寄主植物挥发性物质的行为反应及作用机理的研究副题名外文题名 Behavioral responses and mechanism of Anoplophora glabripennis to host volatile compounds 论文作者李建光导师尹伟伦骆有庆金幼菊教授学科专业植物学研究领域\研究方向植物与昆虫的关系学位级别博士学位授予单位北京林业大学学位授予日期2001 论文页码总数129页关键词森林病虫害光肩星天牛寄主选择挥发性物质馆藏号BSLW /2003 /S763 /6 光肩星天牛Anoplophora glabripennis是我国最重要的一种林木蛀干害虫。

Coptis teeta is an economic medicinal plant which is well protected in Yunnan. Based on ethnobotanical theory, combined with field study, community survey, and literature study, we investigated the history of cultivation and traditional management of C.

运用民族植物学原理，采用野外面上调查、定点社区调查和文献研究相结合的方法，调查了云南西北部高黎贡山地区傈僳族对云南黄连的混农林种植历史和方式，总结了他们认知、利用、管理和保护这一名贵药用植物的传统知识和经验及其与生物多样性保护的关系。

The environmental palaeobotany, one of new research fields in palaeobatany, investigates palaeovegetation succession, discusses i...

环境古植物学是古生物学中一个新的研究领域，它探讨地质历史时期古植被的演替、化石植物与环境之间的内在联系，恢复地史时期的古气候与古环境。

This is the home page of International Organisation of Palaeobotany. It manages the Plant Fossil Record database. The version, PFR2.2, has descriptive details of most plant fossil genera and of those modern genera which have fossil species.

这是国际古植物学组织的主页，该组织管理着植物化石记录数据库，该库的2.2版提供了许多植物的化石属和一些现代属的化石种详细记录。

The environmental palaeobotany, one of new research fields in palaeobatany, investigates palaeovegetation succession, discusses internal relations of fossil plants-environment and reconstructs change of palaeoclimate and palaeoenvironment through geological time.

环境古植物学是古生物学中一个新的研究领域，它探讨地质历史时期古植被的演替、化石植物与环境之间的内在联系，恢复地史时期的古气候与古环境。

It models the initial shape of the floral components including petal, pistil, stamen and pedicel,and two terminal status of floral blossom with a sketch-based interface. The subtle geometry of the whole flower is created according to the phyllotactic rules.

首先采用基于草图的建模方法对花朵的器官，如花瓣、雌蕊、雄蕊和花梗等进行初始形状设定；利用植物学中的叶序规则，构建花苞和成花的完整细节模型。

Phytophagy Lab, Department of Botany is primarily dedicated to teaching and research in Phytophagy including ecological genetics of offensive-defensive interactions between plants and herbivores, influences of plant genotype, neighbors, and insect colonization on insect community structure.

植物学系植食性研究室主要致力于植物食性的教学与研究，其研究领域包括植物和草食动物之间攻－防之间的遗传学，昆虫群落结构的植物基因型、邻居、和昆虫种群的影响。

In the light of looking up -finishing-inquiring into the literature,The subject ntegratedly applied the knowledge of botany and phytotomy and Authentication of Chinese Medicines and the experimental technology to study taxonomy and anatomy of Cornus chinense Wanger and its kindred plant.To combine the knowledge of natural medicinal chemistry instrumental analysis,pharmaceutical analysis and experimental technique,Glycosides chemical components of Cornus chinense Wanger and its kindred plant were qualitatively analysised by using TLC.

以文献查阅-整理-调查为基础，综合运用植物学、植物解剖学、中药鉴定学知识与实验技术对川鄂山茱萸及其近缘植物进行分类学处理与解剖学研究，结合天然药物化学、仪器分析、药物分析等学科的知识与实验技术，用TLC定性分析川鄂山茱萸及其近缘植物的苷类化学组分；用HPLC测定川鄂山茱萸不同器官、细胞组织、果实不同采集期的熊果酸、马钱苷的含量并进行色谱条件优化。

To them, botany, as such, has no name and is probably not even recognized as a special branch of "knowledge"at all.

不幸的是，工业化的程度越高，我们距直接与植物接触就越远，我们的植物学知识的增加也就越微不足道。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。