📚 Year 12 WJEC Geography Core Knowledge Review | WJEC 地理 Year 12 核心知识点梳理
In your Year 12 WJEC Geography course, you will tackle two major components that shape our world: Changing Landscapes and Changing Places. Unit 1 explores coastal and glacial systems, while Unit 2 focusses on population dynamics and evolving settlements. This revision guide consolidates the essential knowledge, processes, and case studies you need for success at AS level.
在 WJEC Year 12 地理课程中，你将学习两大塑造世界的板块：变迁的景观和变化中的地方。第一单元探讨海岸与冰川系统，第二单元聚焦人口动态和不断演变的聚落。这份复习指南整合了你需要在 AS 水平取得好成绩的核心知识、过程和案例研究。
1. Coastal Landscapes as Systems | 作为系统的海岸景观
Coastal landscapes are viewed as open systems with inputs, stores, transfers and outputs. Energy inputs come from waves, wind and tides, while sediment is supplied by rivers, cliff erosion and offshore sources. The balance between erosion and deposition creates distinctive landforms.
海岸景观可视为一个开放系统，具有输入、存储、传输和输出。能量输入来自波浪、风能和潮汐，而沉积物则由河流、悬崖侵蚀和近海源区供给。侵蚀与沉积的平衡造就了独特的地貌形态。
Wave refraction concentrates energy on headlands and dissipates it in bays, leading to differential erosion. Constructive waves build beaches, whereas destructive waves remove sediment, steepening the profile.
波浪折射将能量集中到海岬，并在海湾消散，从而引起差异侵蚀。涌浪塑造海滩，而碎浪则带走沉积物，使海滩剖面变陡。
Sediment cells function as largely closed systems along the coast, where major movement of material occurs without significant transfer from neighbouring cells. This concept underpins sustainable coastal management.
沉积物单元在海岸沿线充当着基本闭合的系统，物质主要在单元内移动，很少跨越单元边界。这一概念是可持续海岸管理的基础。
2. Coastal Landforms and Processes | 海岸地貌与过程
Erosional landforms develop where the rate of removal exceeds supply. Hydraulic action, abrasion, attrition and solution attack the rock face. Wave‑cut platforms, cliffs, caves, arches, stacks and stumps show a clear sequence of coastal retreat.
侵蚀地貌形成于物质移除速率超过供应速率的区域。液压作用、磨蚀、磨圆和溶蚀共同侵蚀岩壁。波切平台、悬崖、海蚀洞、海蚀拱、海蚀柱和海蚀残柱清楚地展示了海岸后退的序列。
Depositional features grow when constructive waves prevail and longshore drift transfers sediment. Beaches, spits, bars, barrier islands and tombolos indicate abundant sediment supply and low‑energy conditions. Spits may be recurved by secondary wind and wave directions.
沉积地貌在涌浪占主导且沿岸漂移输送沉积物时发育。海滩、沙嘴、沙坝、障壁岛和连岛沙洲表明沉积物供应充足且能量较弱。沙嘴可能因次要风向和波浪方向而弯曲。
Sub‑aerial processes, such as mass movement and weathering, weaken coastal cliffs. Rotational slumping, rockfalls and soil creep accelerate retreat, particularly where cliffs consist of permeable rock overlying clay.
地表下过程，如块体运动与风化，会削弱海岸悬崖。旋转滑动、岩崩和土壤蠕移加速后退，尤其是在悬崖由透水岩石覆盖于黏土之上的区域。
3. Coastal Management and Conflict | 海岸管理与冲突
Hard engineering structures interrupt natural processes. Sea walls, groynes, revetments and rock armour are designed to fix the coastline, but they can increase erosion downdrift and degrade coastal amenity.
硬工程结构会阻断自然过程。海堤、丁坝、护岸和抛石防波堤旨在固定海岸线，但可能增强下游方向的侵蚀并降低海岸景观品质。
Soft engineering approaches work with nature. Beach nourishment, dune regeneration and managed retreat offer more sustainable and flexible solutions, though repeated nourishment is costly.
软工程方法顺应自然。海滩补沙、沙丘再生和受控撤退提供了更可持续、更灵活的方案，但反复补沙成本较高。
Shoreline Management Plans divide the coast into policy units: 'hold the line', 'advance the line', 'managed retreat' and 'do nothing'. Decisions involve cost‑benefit analysis and stakeholder consultation, often generating conflict between residents, businesses and environmental groups.
海岸线管理计划将海岸划分为政策单元：“坚守岸线”、“向海推进”、“受控撤退”与“无为而治”。决策涉及成本效益分析和利益相关者协商，常常引发居民、企业与环境组织之间的冲突。
4. Glacial Landscapes as Systems | 作为系统的冰川景观
Glaciated landscapes are shaped by mass balance. The accumulation zone gains snow and ice; the ablation zone loses mass through melting and sublimation. When accumulation exceeds ablation, the glacier advances.
冰川景观由物质平衡所塑造。积累区获得雪与冰；消融区则通过融化和升华损失物质。当积累超过消融，冰川前进。
Basal sliding, internal deformation and subglacial sediment deformation drive ice movement. Warm‑based glaciers move faster and are powerful erosive agents; cold‑based glaciers are frozen to their beds and protect the land surface.
底部滑动、内部变形和冰下沉积物变形驱动着冰体的运动。暖底冰川移动较快，是强大的侵蚀营力；冷底冰川冻结于床岩之上，反而保护了地表。
5. Glacial Erosion and Landforms | 冰川侵蚀与地貌
Abrasion and plucking sculpt the bedrock. Striations and chatter marks indicate ice direction. Cirques, arêtes, pyramidal peaks, U‑shaped valleys and truncated spurs are classic erosional signatures of valley glaciers.
磨蚀和拔蚀作用雕琢着基岩。擦痕和颤动痕指示了冰流方向。冰斗、刃脊、角峰、U 形谷和截断山嘴是山谷冰川典型的侵蚀特征。
Debris entrained by the glacier is deposited as till. Drumlins, moraines (terminal, lateral, medial and ground) and erratics provide evidence of ice‑margin positions and flow dynamics. Glaciofluvial meltwater sorts and rounds sediment, creating eskers, kames and outwash plains.
冰川挟带的碎屑会沉积为冰碛物。鼓丘、冰碛（终碛、侧碛、中碛和底碛）和漂砾提供了冰缘位置和运动动态的证据。冰水融水对沉积物进行分选和磨圆，形成蛇形丘、冰砾阜和外洗平原。
6. Glacial Management and Land‑Use Conflicts | 冰川管理及土地利用冲突
nservation and renewable energy. In areas like Snowdonia or the Lake District (= WJEC case‑ ple vegetation and accelerate footpath erosion, while wind farms can disrupt scenic value.
曾受冰川作用的高地如今承载着相互竞争的土地利用：林业、游憩、自然保护和可再生能源。在斯诺多尼亚或湖区（WJEC 案例研究地点）等地，游客践踏植被，加速步道侵蚀，而风电场可能破坏景观的视觉价值。
Management strategies include zonation, hardened trails, visitor‑pay schemes and rewilding projects. Conflicts often arise between economic development and environmental stewardship, requiring sustainable solutions that balance local needs.
管理策略包括分区制、步道硬底化、游客付费制度和再野化工程。经济效益与环境保护之间的冲突时常发生，需要兼顾当地需求的可持续解决方案。
7. Changing Places: Population Dynamics | 变化中的地方：人口动态
Population structure and change are analysed through the Demographic Transition Model (DTM), which links birth rates, death rates and economic development. The UK moved through all five stages, while many LICs remain in stages 2‑3.
人口结构和变化通过人口转变模型（DTM）进行分析，该模型将出生率、死亡率和经济发展联系起来。英国已走过了全部五个阶段，而许多低收入国家仍停留在第 2‑3 阶段。
The fertility rate, infant mortality and migration shape population pyramids. Dependency ratios influence government spending on healthcare, education and pensions. The UK’s ageing population exerts pressure on the NHS and social care.
生育率、婴儿死亡率和迁移塑造了人口金字塔。抚养比影响政府在医疗保健、教育和养老金方面的支出。英国的人口老龄化给国民医疗服务体系和社会护理带来压力。
Push‑pull factors drive internal and international migration. Counter‑urbanisation in the UK sees people moving from cities to accessible rural areas, altering the demographic and socio‑economic character of villages.
推拉因素驱动着国内和国际迁移。英国的反城市化表现为人们从城市迁往交通便利的乡村地区，改变了村庄的人口结构和社会经济特征。
8. Rural Change and the Rural‑Urban Fringe | 乡村变化与城乡结合部
Rural areas in the UK have experienced profound restructuring. Declining agricultural employment, second‑home ownership, and the growth of ‘rural gentrification’ create new social divisions. Key settlements offer service hubs, but remote villages face the loss of shops, schools and bus routes.
英国乡村地区经历了深刻的重组。农业就业下降、第二住宅拥有以及“乡村绅士化”的兴起引发了新的社会分化。关键聚落提供了服务中心，但偏远村庄却面临商店、学校和公交线路的消失。
The rural‑urban fringe is a zone of transition under intense development pressure. Business parks, out‑of‑town retail centres and housing estates compete with Green Belt restrictions. Planning policies try to contain sprawl while delivering affordable homes.
城乡结合部是一个承受巨大开发压力的过渡地带。商业园区、城外零售中心和住宅区与绿带限制形成竞争。规划政策力图在遏制蔓延的同时提供可负担住房。
9. Urban Change and Regeneration | 城市变化与更新
Deindustrialisation, suburbanisation and re‑urbanisation have rewritten the socio‑economic geography of UK towns and cities. In many conurbations, inner‑city decline is being countered by flagship regeneration projects.
去工业化、郊区化与再城市化已改写了英国城镇的社会经济地理。在许多大都市圈中，内城衰落正被标志性的更新工程所抵消。
Rebranding attempts to shift perceptions of places. The London 2012 Olympic Park regenerated a deprived area of East London, creating new housing, parkland and transport links. Similar strategies use culture, heritage and sport to attract investment.
重塑形象试图转变人们对地方的感知。2012 年伦敦奥林匹克公园更新了东伦敦一处贫困区域，创建了新的住房、绿地和交通连接。类似策略借助文化、遗产和体育来吸引投资。
However, regeneration can lead to 'regeneration gap' — where the original community fails to benefit or is displaced. Sustainable communities require tenure mix, employment opportunities and genuine community participation.
然而，更新可能导致“更新鸿沟”——原社区未能受益或被取代。可持续社区需要混合保有形式、就业机会和真正的社区参与。
10. Fieldwork Skills and Data Analysis | 野外调查技能与数据分析
Year 12 fieldwork should be used to explore coastal or glacial landscapes or to investigate a changing place. Effective inquiry requires clear geographical questions, systematic data collection and appropriate sampling strategies (random, systematic, stratified).
Year 12 的野外调查应用于探索海岸或冰川景观，或者研究一个变化中的地方。有效的探究需要明确的地理问题、系统的数据收集和恰当的抽样策略（随机、系统、分层）。
For physical fieldwork, measurements might include beach profile transects, sediment size (using powers 1/2 phi scale), longshore drift distance, and wave frequency. Human fieldwork could use questionnaires, land‑use mapping, environmental quality surveys and sense of place evaluations.
在自然地理野调中，测量指标可能包括海滩剖面样线、沉积物粒径（采用 1/2 φ 尺度）、沿岸漂移距离和波浪频率。人文野调则可使用问卷调查、土地利用绘图、环境质量调查和场所感知评价。
Data presentation techniques — scattergraphs, radar plots, proportional symbols and cross‑sections — must be chosen to suit the data type. Statistical tests such as Spearman’s rank correlation help to establish relationships.
数据呈现技术——散点图、雷达图、比例符号图和横剖面图——必须与数据类型相匹配。斯皮尔曼等级相关系数等统计检验有助于确立变量之间的关系。
11. Synoptic Thinking and Exam Preparation | 综合思维与备考
WJEC examiners reward the ability to connect different topics. For example, explain how climate change influences both coastal recession (through sea‑level rise) and the mass balance of glaciers. Or discuss how international migration alters the demographic and cultural character of rural places.
WJEC 考官看重联结不同主题的能力。例如，解释气候变化如何既通过海平面上升影响海岸后退，又改变冰川的物质平衡。或者探讨国际移民怎样改变乡村地区的人口和文化特征。
Use the command words precisely. 'Describe' requires patterns and trends; 'explain' demands causation; 'evaluate' expects judgement with evidence. Always integrate place‑specific detail drawn from your case studies.
准确使用指令词。“Describe” 要求描述规律和趋势；“Explain” 需要解释成因；“Evaluate” 期望有据可依的判断。务必融入从案例研究中引用的具体地点细节。
Regularly practise extended writing under timed conditions, linking back to the key concepts of systems, equilibrium and sustainability. Keep a glossary of terms such as dynamic equilibrium, feedback loop, deprivation index and social exclusion.
定期在限时条件下练习长篇写作，回扣系统、平衡和可持续性等核心概念。建立术语表，如动态平衡、反馈环、剥夺指数和社会排斥。
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