以综合思维引领丹霞地貌与旅游地理研究创新——彭华先生的地理学思想与学术贡献

彭华先生长期从事丹霞地貌和旅游地理研究,为中国丹霞事业和旅游发展做出了突出贡献,是“把论文写在祖国大地上”的科学家的典范。作为中国丹霞地貌研究国际化阶段的代表人物,彭华先生在丹霞地貌分类系统、丹霞地貌发育过程、国内外红层分布及其地貌发育的对比等方面开展了系列研究,同时,针对中国南方湿润环境下红层区严重的地貌灾害和荒漠化问题,用跨学科的思维和方法,开展了红层区地质构造—岩石特性—地貌发育—自然灾害—水土流失—生态退化—综合景观—社会经济发展之间相互关系的综合地理学研究实践,将原来的红层地表研究拓展为“地下+地表+地上”（红层的地质问题+地貌与土地问题+生态问题）的一体化研究,为丹霞地貌的未来研究指明了方向。彭华先生在旅游开发实践中不断总结新思想、新方法和新理论,在旅游地开发、旅游文化、城市旅游、区域旅游发展和旅游规划理论研究方面取得了大量成果,所提出的“大旅游”理念在学界有重要影响。在“大旅游”理念基础上提出的旅游系统及动力机制、旅游地发展阶段论、旅游开发与城市建设一体化、市场分类研究法、产品—需求对应分析法等理论,创新意义显著。彭华先生的学术研究典型体现了地理学的综合性思维和系统性思维。

Leading the research innovation of Danxia landform and tourism geography by synthetic thinking: The geographical thoughts and academic contribution of Peng Hua

Peng Hua was a professor at Sun Yat-sen University who was long devoted to Danxia Landform research and geographic tourism. In retrospect, Peng's achievements can be introduced from three aspects. First, through seeking overseas collaboration and applying for nomination of world natural heritage sites, he made a great practical contribution in promoting Danxia Landform as an internationally known heritage. Second, concerning his academic contribution, Peng produced a wealth of nuanced insights in multiple aspects of Danxia Landform, including, but by no means confined to, its typology and evolution and the distribution of red beds. Equally, he systematically compared Danxia landform with many others, both in and outside China. Additionally, in recent years, he made benchmark progress by successfully extending the scope of research on red beds, including its underground and above ground surfaces, such as geological structure, rock properties, geomorphological evolution, natural hazards, soil erosion, land degradation, and its socioeconomic development. Also, Peng Hua initiated the national survey of Danxia Landform and constructed its data platform. Third, in addition to research on Danxia Landform, he devised multiple significant concepts in the fields of tourism planning, tourism culture, urban tourism and regional tourism development. Particularly, the concept of 'Broad Tourism', which was proposed by Peng Hua, has had a massive impact on the academic community of Chinese tourism studies. Based on this concept, he proposed a number of innovative theories and research methods, such as the system and mechanism of tourism, development stages of tourism destinations, integration of tourism exploitation and city construction, market classification analysis, and correspondence analysis of products and demands. To a considerable extent, there is no exaggeration in arguing that these theories provide a bird's-eye view of the tourism development, clarify the differences and inter-connections among the direct, involved, and supportive systems and mobilize the role of tourism in regional development. All in all, Peng's achievements reflect his openness, overall awareness, and optimal portfolio, which helps researchers keep a comprehensive view in dealing with more subtle research of geography.