自然地理

Maui 5. Marae 6. Abel Tasman

自然地理中的多样性使全国的自然风景呈现出各种各样的变化。

The results are listed as follows:(1) In peneplain with plenty water-resource, hexagonal spatial structure of urban system can be formed. Due to differential competed function of central places, the hexagonal system is distorted. The result is that the area covered is decr eased and the girth is unchanged——but every border is usually unequal;(2) A pattern of pentagonal system evolves from hexagonal system controlled by a river;(3) A pattern of quadrilateral develops from hexagonal system under two parallel rivers;(4) The equal distance distribution of central places in narrow geographic space has its special reasons. The results are very important for understanding urban's formation and development and urban plan in Huang-Huai-Hai plain.

本文通过自然地理因素中水文、地形这两个重要要素对城镇体系空间结构形成的影响，分析了华北平原区在不同要素影响下的城镇体系空间结构样式：①在水源充足的准"均质"河北冲积平原上，基本满足六边形形成条件，但由于周边中心地发展竞争力不同，故使得正六边形发生畸变——覆盖面积减小而周长却保持不变；②构建了在一条河流影响下的六边形网络结构朝五边形网络演变的模型；③构建了在平行状河流作用下六边形网络向四边形网络演替的模式；④指出了在水源充足的狭长地理空间，城镇体系空间结构发育成等间距的现象与原因。

Interaction among Biosphere, Hydrosphere, Atmosphere and Lithosphere and its effect on the Earth's Surface System were elaborated in physical geography. Especially, it was emphasized that the Earth's Surface Environment is a system.

该课程主要是向学生介绍自然地理学的基础理论和方法，目的是培养学生形成地球表层环境的整体观念，了解自然环境发生的变化及其机理，懂得自然地理现象与土地科学的关系。

This dissertation has six chapters, and the structure is in the following: The first chapter is about the background of agriculture. This chapter analyzes the influence which nature makes to agriculture, and indicates Mediterranean climate and natural situation are favor of the growth and distribution of agriculture. And with the effect of Etruscans and the opinion of physiocracy, Romans inevitably attach importance to agriculture.

本文共分六章，基本框架大致如次：第一章农业发展条件：本章重在分析自然地理对农业生产的影响，指出罗马所拥有的地中海气候及地形复杂、土壤肥沃等自然条件，有利于各种农作物的生长和分布；同时受伊达拉里亚人的影响以及传统上罗马人重农轻商的农业思想束缚，农业生产不可避免地受到人们的重视。

1Being a typical marine physiographic area as well as a representative natural ecosystem area, or an area where the natural ecosystem has been damaged to some extent, but may be recovered through efforts of conservation

典型的海洋自然地理区域、有代表性的自然生态区域，以及遭受破坏但经保护能恢复的海洋自然生态区域

That attical is to appty the regression analysis and the colleet analy- sis in the mathematics statistics method to make the first definite mea- sure analysis for recationship of physical geography factor and divis on of geographical type.

本文应用数理统计方法中的回归分析和聚类分析，对自然地理要素间关系和地理类型的划分作了初步的定量分析。在回归分析中，应用我国山地的降水资料建立了地形高度对降水影响的数学模型，得出山地降水垂直分布规律服从于线性、幂函数、指数函数和对数律。

The geographical environment elements to form weather disasters in yunnan include low latitude plateau,approaching tropical oceans,complicated topographical features,cliffy mountain,few vegetation,concentrated rainfall,complicated geological structure and strong fault actions.

由于云南复杂的低纬高原地理环境，多样的局地气候背景，特殊的地貌植被状况以及同时受东亚、南亚两支季风的共同作用，形成了鲜明的区域气象灾害特征[1，2]。1 云南气象灾害的特征1.1 种类多、频率高、重叠交错云南自然地理环境特殊，7种气候带交错分布，气候资源丰富，立体气候明显，地域差异大。

Palaeogeography is a branch of geosciences, which studies natural geographical features in the geological history. The research targets are the evolution history of oceans and continents, and the distribution and characteristics of the internal palaeogeographic units.

古地理学是研究地质历史时期自然地理特征的地质科学，其研究目标是海洋和陆地的变迁历史及其内部古地理单元的分布和特征。

Palaeogeography is a science which studies natural geographical features in the geological history and humankind history. It is of important theoretical and practical significance, and closely related with past and present geographical environments in which humankind lives.

古地理是研究地质历史时期和人类历史时期的自然地理特征的科学，有重要的地学理论意义和生产实践意义，还与人类赖以生存的古今地理坏境密切相关。

Because they are impacted by the altitude、geographic setting、slope direction、topography and soil material, so the whole vertical zone becomes fragmentation、diversity and the transition from cool-temperate mixed needle-broad-leaved forest zone to needle-leaved forest zone.

本文详细的介绍了各个垂直带的自然地理特征，归纳出整个垂直带谱具有破碎性、温带到寒带的过渡性、重叠性等特点，原因是其受海拔、地理位置、坡向、微地形、地面组成物质的分异等因素的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。