IGCSE Edexcel Geography: A Quick Memorisation Guide to Key Terminology | IGCSE Edexcel 地理：核心术语速记指南

📚 IGCSE Edexcel Geography: A Quick Memorisation Guide to Key Terminology | IGCSE Edexcel 地理：核心术语速记指南

Mastering geographical terminology is essential for success in IGCSE Edexcel Geography. This guide provides concise definitions and clever memory aids for the most frequently tested terms across physical and human geography. By linking terms to vivid images, acronyms, and simple stories, you can boost recall during exams and write more precise, high-mark answers.

掌握地理术语是在IGCSE Edexcel地理考试中取得高分的关键。本指南为自然地理和人文地理中最常考的术语提供了简洁的定义和巧妙的记忆辅助。通过将术语与生动的图像、首字母缩写和简单的故事联系起来，你可以在考试中提升记忆力，写出更精准、高分的答案。

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1. River Landscapes Terminology | 河流地貌术语

Four key erosion processes shape river channels: hydraulic action, abrasion, attrition and solution. Hydraulic action is the force of water compressing air in cracks, causing mini-explosions – imagine a pressure washer blasting loose soil. Abrasion works like sandpaper, where the river uses its load of rocks to scrape the bed and banks. Attrition occurs when the transported rocks collide with each other, becoming smaller and rounder; think of pebbles in a tumble dryer. Solution (or corrosion) dissolves soluble minerals from the rock, similar to how water slowly dissolves a sugar cube.

四种关键的侵蚀过程塑造了河道：水力作用、磨蚀、磨耗和溶蚀。水力作用是水流的力量压缩裂缝中的空气，引发微小爆裂——想象高压水枪冲刷松散的泥土。磨蚀类似于砂纸打磨，河流利用携带的石块刮擦河床和河岸。磨耗是搬运中的石块相互碰撞，变得更小更圆；可以想象成滚筒烘干机里的鹅卵石。溶蚀则溶解岩石中的可溶性矿物，就像水慢慢溶解方糖一样。

Landforms such as V-shaped valleys, interlocking spurs, waterfalls and gorges appear in the upper course. The V-shape results from vertical erosion, and interlocking spurs are zigzag ridges of hard rock the river winds around. A waterfall forms where hard rock overlies soft rock; the soft rock is undercut, creating a plunge pool and eventually a steep-sided gorge as the waterfall retreats. Remember ‘V’ for vertical and valleys.

V形谷、交错山嘴、瀑布和峡谷等地貌出现在河流上游。V形源于下切侵蚀，交错山嘴是河流绕过坚硬岩石形成的之字形山脊。瀑布形成于硬岩覆盖软岩的地方；软岩被掏蚀形成壶穴，随着瀑布后退最终形成陡峭的峡谷。记住 “V” 代表垂直侵蚀和山谷。

In the lower course, meanders, oxbow lakes, flood plains and levees dominate. A meander is a bend; over time, erosion on the outside and deposition on the inside make it more curved. An oxbow lake is a cut-off meander, like a stranded horseshoe. To memorise the sequence, picture a snake biting its own tail and then the loop being pinched off.

下游主要发育曲流、牛轭湖、泛滥平原和天然堤。曲流是河道的弯曲；随着时间的推移，外侧侵蚀、内侧沉积使弯曲加剧。牛轭湖是被截断的曲流，像搁浅的马蹄形湖泊。记忆顺序时，可以想象一条蛇咬住自己的尾巴，然后环被掐断。

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2. Coastal Processes and Landforms | 海岸过程与地貌

Coastal erosion involves the same four processes as rivers, but waves add destructive and constructive patterns. Destructive waves are high, steep and frequent, with a strong backwash that removes material – think of a vacuum cleaner repeatedly sucking sand off a beach. Constructive waves are low, gentle and less frequent, with a strong swash that deposits sand, building up the beach. Associate ‘destructive’ with ‘destroy’ and ‘constructive’ with ‘construct’.

海岸侵蚀同样包含四种过程，但波浪还有破坏性和建设性两种模式。破坏性波浪高、陡且频繁，强劲的回冲带走物质——想象吸尘器反复吸走海滩上的沙子。建设性波浪低、平缓且频率低，强劲的冲流堆积沙子，加积海滩。将 “destructive” 与 “destroy” 联系起来，将 “constructive” 与 “construct” 联系起来记忆。

Landforms of erosion include cliffs, wave-cut platforms, headlands and bays, caves, arches, stacks and stumps. A sequence worth memorising: cracks in a headland enlarge to caves, two caves erode back-to-back to form an arch, the arch roof collapses leaving a stack, and further erosion lowers it to a stump. Visualise a rocky headland being carved like a sculpture, from arch to stack to stump – the ‘ASS’ chain (Arch, Stack, Stump) can help.

侵蚀地貌包括悬崖、浪蚀台地、岬角和海湾、海蚀洞、海蚀拱、海蚀柱和海蚀残丘。值得记忆的发育顺序：岬角的裂缝扩大成洞穴，两个背靠背的洞穴贯穿形成拱门，拱顶坍塌留下海蚀柱，进一步侵蚀降低为海蚀残丘。想象岩石岬角像雕塑一样被雕刻，从拱到柱再到残丘——可以用 “ASS” 链条（Arch, Stack, Stump）辅助记忆。

Depositional features include beaches, spits, bars and tombolos. Longshore drift is the zigzag movement of sediment along the coast driven by prevailing wind. A spit is an elongated ridge of sand extending into the sea, often curved at the tip. When a spit grows across a bay and connects two headlands, it becomes a bar; if it connects the mainland to an island, it is a tombolo. Picture a ‘spit kit’ where sand is stretched like toffee.

沉积地貌包括海滩、沙嘴、湾口坝和连岛沙洲。沿岸漂移是沉积物随盛行风向沿岸呈锯齿形运动的过程。沙嘴是伸入海中的狭长沙脊，末端常弯曲。当沙嘴横跨海湾连接两个岬角时，形成湾口坝；若连接大陆与岛屿，则是连岛沙洲。想象一个 “沙嘴工具包”，沙子像太妃糖一样被拉长。

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3. Weather and Climate Vocabulary | 天气与气候词汇

Weather is the day-to-day state of the atmosphere, while climate is the long-term average of weather over at least 30 years. Keep them distinct by remembering ‘weather = what you wear today; climate = what you keep in your wardrobe over years’. Air pressure is measured in millibars (mb); high pressure brings settled, dry conditions (sinking air, no clouds), and low pressure brings unsettled, wet and windy weather (rising air, condensation). Think of high pressure as a heavy, stubborn dome that blocks rain.

天气是大气的日常状态，而气候是至少30年的长期平均天气。区分两者的记忆方法：”天气 = 你今天穿什么；气候 = 你多年存放在衣柜里的”。气压以毫巴为单位测量；高压带来稳定、干燥的天气（下沉气流，无云），低压带来不稳定、潮湿多风的天气（上升气流，凝结）。把高压想象成一个沉重顽固的穹顶，阻挡着降雨。

Three types of rainfall often appear in the exam: relief, convectional and frontal. Relief rainfall occurs when moist air is forced to rise over hills and mountains, cooling and condensing on the windward side. Convectional rainfall happens on hot days when the ground heats the air, causing it to rise quickly and form towering cumulonimbus clouds. Frontal rainfall is where warm and cold air masses meet; the lighter warm air is forced to rise over the denser cold air along a front. Use the initials RCF and picture a ‘Rainfall Cafe Foundation’.

考试中常出现三种降雨类型：地形雨、对流雨和锋面雨。地形雨发生在潮湿空气被迫抬升越过丘陵和山脉时，在迎风坡冷却凝结。对流雨发生在炎热的日子里，地面加热空气使其快速上升，形成高耸的积雨云。锋面雨是冷暖气团相遇，较轻的暖空气被迫沿锋面爬升到较重的冷空气之上。用首字母 RCF，并想象一家 “Rainfall Cafe Foundation” 咖啡馆。

The enhanced greenhouse effect should not be confused with the natural greenhouse effect. The natural greenhouse effect keeps Earth warm enough for life, while the enhanced effect is caused by human activities releasing extra CO₂, methane and other greenhouse gases, trapping more heat. Remember ‘enhanced = extra human heat-trapping’.

增强温室效应不应与自然温室效应混淆。自然温室效应使地球保持适宜生命生存的温度，而增强效应是由人类活动释放额外二氧化碳、甲烷等温室气体，捕获更多热量所引起。记住 “enhanced = 额外的人为热量捕获”。

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4. Ecosystems and Biomes | 生态系统与生物群落

An ecosystem is a community of living organisms interacting with their non-living environment. Key components include producers (plants that photosynthesise), consumers (herbivores, carnivores, omnivores) and decomposers (bacteria and fungi that break down dead matter). A food chain shows a simple linear energy transfer, while a food web shows interconnected chains. Think of a chain as a single lane and a web as a multi-lane motorway.

生态系统是生物群落与其非生物环境相互作用的整体。关键组成部分包括生产者（进行光合作用的植物）、消费者（食草动物、食肉动物、杂食动物）和分解者（分解死物质的细菌和真菌）。食物链展示简单的线性能量传递，食物网展示相互连接的链条。将食物链想象成单车道，食物网想象成多车道高速公路。

A biome is a large-scale ecosystem with a distinct climate, soil and vegetation, such as tropical rainforest, savanna grassland, hot desert and tundra. The nutrient cycle represents the movement of nutrients between plants, soil and litter. In the tropical rainforest, most nutrients are held in the living biomass, and the rapid decomposition recycles them quickly. Use the mnemonic ‘BLSL’ – Biomass, Litter, Soil, Loss – for the Gersmehl model, and recall that rainforests have huge biomass but thin, nutrient-poor soil.

生物群落是具有独特气候、土壤和植被的大尺度生态系统，如热带雨林、热带稀树草原、热荒漠和冻原。养分循环代表养分在植物、土壤和枯枝落叶之间的移动。在热带雨林，大部分养分储存在活的生物量中，快速分解使其迅速循环。用助记符 “BLSL”（生物量、枯枝落叶、土壤、流失）记忆格斯梅尔模型，并记住雨林生物量巨大但土壤贫瘠薄层。

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5. Tectonic Hazards | 构造灾害

Plate boundaries are the meeting points of Earth’s tectonic plates. At constructive (divergent) boundaries, plates move apart and magma rises to create new crust – think ‘constructive construction’ of new land. Destructive (convergent) boundaries involve an oceanic plate subducting beneath a continental plate, causing volcanoes and earthquakes; here ‘destructive’ means destruction of the crust. Conservative boundaries are where plates slide past each other, causing friction and earthquakes without creating or destroying crust – imagine two blocks of wood grinding sideways without losing material.

板块边界是地球板块的交汇处。建设性（分离型）边界处板块彼此远离，岩浆上升形成新地壳——想象 “建设性” 建造新陆地。破坏性（汇聚型）边界通常是海洋板块俯冲到大陆板块之下，引发火山和地震；这里的 “破坏性” 意味着地壳的毁灭。守恒型边界是板块相互滑过的地方，通过摩擦引发地震，但不创造也不破坏地壳——想象两个木块相互侧面摩擦而没有材料损失。

Earthquake terminology: the focus (or hypocenter) is the point inside the Earth where the rupture occurs; the epicentre is the point on Earth’s surface directly above the focus. Remember ‘F comes before E’ as you go deeper. Seismic waves radiate outwards, and the moment magnitude scale measures energy released. Volcanic eruptions produce lava, ash, pyroclastic flows and lahars. A shield volcano (wide, gentle slopes, runny lava) forms at constructive boundaries, while a composite volcano (steep, layered, explosive) forms at destructive boundaries. Picture ‘shield’ like a warrior’s shield lying flat, and ‘composite’ as a steep, sticky cone.

地震术语：震源是地球内部破裂发生的点；震中是震源正上方的地表点。记住沿深度方向 “F 在 E 之前”。地震波向外辐射，矩震级衡量释放的能量。火山喷发产出熔岩、火山灰、火山碎屑流和火山泥流。盾形火山（宽而缓坡，流动性好的熔岩）形成于建设性边界，复合火山（陡坡、层状、爆发性强）形成于破坏性边界。将 “shield” 想象成战士平放的盾牌，将 “composite” 想象成陡峭粘稠的锥体。

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6. Population Dynamics | 人口动态

Crude birth rate (CBR) is the number of live births per 1,000 people per year; crude death rate (CDR) is deaths per 1,000 per year. Natural increase = CBR − CDR (ignore migration). The Demographic Transition Model (DTM) describes five stages of population change from high fluctuating to low fluctuating, linked to development. To recall the stages, imagine a staircase: Stage 1 high flat, Stage 2 births high deaths fall, Stage 3 births start to fall, Stage 4 low flat, Stage 5 possible decline.

粗出生率（CBR）是每年每千人活产婴儿数；粗死亡率（CDR）是每年每千人死亡数。自然增长率 = CBR − CDR（忽略迁移）。人口转变模型（DTM）描述了从高波动到低波动共五个阶段的人口变化，与经济发展水平相关。为回忆各阶段，想象一座楼梯：第一阶段高位平台，第二阶段出生率高死亡率下降，第三阶段出生率开始下降，第四阶段低位平台，第五阶段可能出现下降。

Population pyramids show age-sex structure; a wide base indicates high birth rate, typical of DTM Stage 2. An ageing population causes a ‘grey burden’ and a higher dependency ratio (people under 15 and over 65 relative to the working-age population). Migration terms: net migration = immigration − emigration. Push factors drive people from an area (war, drought), pull factors attract them to a new place (jobs, safety). Visualise ‘push’ as someone pushing you out the door and ‘pull’ as someone pulling you in.

人口金字塔显示年龄性别结构；宽大的底部表明高出生率，典型如 DTM 第二阶段。人口老龄化造成 “灰色负担” 和较高的抚养比（15岁以下及65岁以上人口与劳动适龄人口之比）。迁移术语：净迁移 = 迁入 − 迁出。推因素驱使人们离开某地（战争、干旱），拉因素吸引人们前往新地点（就业、安全）。将 “push” 想象成有人把你推出门，”pull” 想象成有人把你拉进去。

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7. Settlement and Urbanisation | 聚落与城市化

Settlement hierarchy ranks settlements by size and services. Threshold population is the minimum number of people needed to support a service; a large hospital needs a higher threshold than a corner shop. The sphere of influence is the area served by a settlement or service. Remember ‘threshold = doorstep you must cross to open a shop; sphere of influence = how far customers travel’.

聚落等级依据规模和服务中心数量排序。门槛人口是支撑一项服务所需的最低人口数量；大型医院比街角商店需要更高的门槛。服务范围是聚落或服务所覆盖的区域。记住 “threshold = 开一家店必须跨过的门槛；sphere of influence = 顾客愿意走多远”。

Urbanisation is the increasing percentage of people living in towns and cities. In MEDCs, many cities experience counter-urbanisation (movement out of cities into rural areas) and suburbanisation (growth of suburbs). Re-urbanisation is the movement of people back into city centres after regeneration. The Burgess model shows concentric zones around the CBD; the Hoyt model adds sectors. Use ‘B for bullseye’ to remember Burgess’s rings.

城市化是居住于城镇城市的人口比例不断上升的过程。在发达经济体，许多城市经历了逆城市化（人口迁出城市进入乡村）和郊区化（郊区扩张）。再城市化是城市中心改建后人口重新流入。伯吉斯模型显示以中央商务区为中心的同心环带；霍伊特模型增加了扇形区。用 “B for bullseye” 记住伯吉斯的同心圆。

CBD stands for Central Business District, the commercial heart with high land values, tall buildings and limited residential population. Urban sprawl is the uncontrolled expansion of urban areas into surrounding countryside. Green belts are designated areas of undeveloped land around cities designed to limit sprawl. Think of the CBD as the beating heart and the green belt as a tight belt containing growth.

CBD 代表中央商务区，是商业核心，具有高地价、高层建筑和极少的居民。城市蔓延是城市区域无控制地向周边乡村扩张。绿化带是城市周围指定的未开发土地，旨在限制蔓延。将 CBD 想象成跳动的心脏，绿化带想象成约束增长的紧腰带。

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8. Economic Development and Globalisation | 经济发展与全球化

Development indicators include Gross Domestic Product (GDP, total value of goods and services produced in a country), GNI per capita (income per person) and the Human Development Index (HDI), which combines life expectancy, education and income. The HDI ranges from 0 to 1; countries with HDI above 0.8 are considered highly developed. Remember ‘GDP = what the whole nation earns; GNI per capita = each person’s slice; HDI = well-being pie’.

发展指标包括国内生产总值（GDP，一国生产的商品和服务总价值）、人均国民总收入（GNI per capita）和人类发展指数（HDI），后者综合了预期寿命、教育和收入。HDI 范围为 0 到 1；HDI 超过 0.8 的国家被视为高度发达。记住 “GDP = 整个国家赚的钱；人均 GNI = 每个人的那一份；HDI = 幸福盒子”。

Employment structure divides the economy into primary (agriculture, mining), secondary (manufacturing), tertiary (services) and quaternary (research, ICT) sectors. The Clark-Fisher model shows how an economy’s employment shifts from primary to secondary and then to tertiary and quaternary as it develops. Picture a ladder: primary at the bottom, quaternary at the top; development climbs the rungs.

就业结构将经济分为第一产业（农业、采矿）、第二产业（制造业）、第三产业（服务业）和第四产业（科研、信息通信技术）。克拉克-费舍尔模型展示随着经济发展，就业如何从第一产业转向第二产业，再转向第三和第四产业。想象一架梯子：第一产业在底部，第四产业在顶部；发展就是攀爬梯级。

Globalisation is the process of increasing interconnectedness through flows of goods, capital, information and people. TNCs (Transnational Corporations) operate in multiple countries, often taking advantage of lower labour costs. The multiplier effect describes how an initial injection of investment (e.g. a new factory) creates further economic growth and jobs. Think of globalisation as a spider’s web linking the world, and the multiplier effect as a chain reaction of positive events.

全球化是通过商品、资本、信息和人员流动日益紧密联系的过程。跨国公司（TNC）在多个国家运营，常利用较低劳动力成本。乘数效应描述初始投资注入（如新工厂）如何创造进一步的经济增长和就业。将全球化想象成连接世界的蜘蛛网，将乘数效应想象成正向事件的连锁反应。

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9. Resource Management and Sustainability | 资源管理与可持续性

Resources can be classified as renewable (solar, wind, HEP) or non-renewable (coal, oil, natural gas, nuclear). Energy security is a country’s ability to secure reliable and affordable energy. Fossil fuels are finite and release CO₂; the energy mix is the combination of energy sources a country uses. Remember ‘renew = can be renewed; non-renew = once used, gone forever’.

资源可分为可再生（太阳能、风能、水电）和不可再生（煤炭、石油、天然气、核能）。能源安全是一个国家保障可靠且可负担能源的能力。化石燃料有限并释放二氧化碳；能源结构是一个国家使用的多种能源的组合。记住 “renew = 可以重新生长；non-renew = 一旦用完，永远消失”。

Sustainable development meets present needs without compromising the ability of future generations to meet their own needs. It has three pillars: environmental, social and economic – often shown as a Venn diagram. Carbon footprint measures total greenhouse gas emissions caused directly and indirectly by an individual, event or product. Ecological footprint measures the amount of productive land and water needed to support a lifestyle. To keep them apart: carbon footprint weighs the gases; ecological footprint weighs the land.

可持续发展兼顾当代需求而又不损害后代满足自身需求的能力。它有三大支柱：环境、社会和经济——常以维恩图表示。碳足迹衡量个人、活动或产品直接和间接产生的温室气体排放总量。生态足迹衡量支撑一种生活方式所需的生产性土地和水域面积。区分方法：碳足迹称量气体；生态足迹称量土地。

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10. Geographical Skills and Fieldwork | 地理技能与实地考察

Maps use grid references: 4-figure references locate a grid square (e.g. 1823), while 6-figure references pinpoint a specific point within that square (e.g. 185235). Master the rule ‘along the corridor and up the stairs’ – eastings first, then northings. Scale can be expressed as a ratio (1:50,000) or a linear scale; 1:50,000 means 1 cm on the map represents 50,000 cm (500 m) on the ground.

地图使用网格坐标：四位坐标定位一个网格方区（如 1823），六位坐标精确定位方区内的具体位置（如 185235）。掌握 “沿走廊走，再上楼” 的规则——先读东距，后读北距。比例尺可用比例（1:50,000）或线性比例尺表示；1:50,000 表示图上 1 厘米代表实地 50,000 厘米（500 米）。

Contour lines connect points of equal height; closely spaced contours indicate steep slopes, widely spaced contours indicate gentle slopes. Spot heights are exact points used alongside contours. When interpreting photographs or field sketches, annotate physical and human features clearly. Remember ‘close contours = cliff-like; wide contours = wobbly walk’.

等高线连接高度相等的点；密集的等高线表示陡坡，稀疏的等高线表示缓坡。高程点是与等高线并用的精确高度点。分析照片或实地草图时，清晰标注自然和人文特征。记住 “密等高线 = 近陡崖；疏等高线 = 忽忽悠悠走平路”。

Fieldwork terminology: a hypothesis is a testable statement, primary data is collected first-hand, and secondary data is obtained from existing sources. Sampling strategies include random, systematic and stratified. In a beach profile, measure gradient with a clinometer and use a ranging pole. To avoid confusion, link ‘primary’ with ‘personal’ and ‘secondary’ with ‘someone else’s’.

实地考察术语：假设是可验证的陈述，一手数据是直接收集的，二手数据来自现有资料。抽样策略包括随机、系统和分层。在海滩剖面中，使用倾斜仪和测距杆测量坡度。为

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