| 南昌市厚田乡风沙地貌形态特征与美学价值 |
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| 作者姓名： | 吴昊 李志文 郭福生 王志刚 梁丽婵 |
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| 作者单位： | 东华理工大学核资源与环境省部共建国家重点实验室培育基地,南昌330013;东华理工大学地球科学学院,南昌330013;东华理工大学地球科学学院,南昌,330013 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金;国家重点实验室基金 |
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| 摘 要： | 南昌市南部新建县广泛分布由古风沙和现代流沙组成的沙化土地。在野外地质调查的基础上,选择新建县南部厚田沙地作为研究对象,应用观察法、描述法和系统调查分析法等定性评价方法对上伏风沙地貌的类型和特征进行分析,并结合下覆古风沙的OSL年代、粒度组成及色度参数等定量分析方法,探讨亚热带湿润区风沙地貌遗产的美学特征。结果表明:厚田风沙地貌包括现代风沙沉积和晚第四纪古风沙沉积。现代风沙沉积大致始于14 ka B.P.,以纵向沙垄、穹形沙堆、辫状沙堆、平沙地等微地貌形态为主;晚第四纪古风沙沉积时间约为77.0~14.9 ka B.P.,以板状交错层理为主,地层序列丰富,是蕴含古环境演变信息的特殊地质遗迹,具有重要的科学研究价值。风沙地貌具有色彩美、旷远美、形式美和生命美等美学特征,具有良好的地学旅游开发价值。定性评价与定量分析相结合,可丰富风沙地貌美学研究的内容,也可为中国南方亚热带湿润区风沙地貌的地质遗迹保护和地学旅游开发提供参考。
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| 关 键 词： | 厚田沙漠 风沙地貌 美学价值 旅游开发 江西南昌 |
| 收稿时间： | 2018-08-28 |
| 修稿时间： | 2019-01-29 |
Morphological characteristics and aesthetic value of aeolian landforms in Houtian township,Nanchang |
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| Authors: | WU Hao LI Zhi-wen GUO Fu-sheng WANG Zhi-gang LIANG Li-chan |
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| Affiliation: | (1. State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China Institute of Technology, Nanchang 330013,China; 2. School of Geosciences,East China Institute of Technology, Nanchang 330013,China) |
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| Abstract: | Xinjian County in southern Nanchang City is widely covered by desertified land that is composed of ancient sand and modern aeolian sediments.Based on the field investigation,this study selectd thick Houtian aeolian sediments in southern Xinjian County as our study objective to analyze the types and characteristic of overlying aeolian landform.Combined with quantitive analysis methods such as OSL dating,grain sizes and colorimetric parameters,the aesthetic characteristics of the aeolian geomorphological heritage in the humid,subtropical areas were discussed.The results show that the Houtian aeolian landform includes modern sand sediments and Late Quaternary paleo-sand sediments.Modern sand sediments began roughly 14000 years ago and major landform consists mainly of vertical sand ridges,sand drift,braided sands,and flat sands.The Late Quaternary paleo-sand sediment started about 77000 to 14000 years ago and geomorphology mainly comprises slab-like crossbedding and rich stratigraphic sequences,which constitute specific geologic heritage with abundant paleo-ecological evolutionary data and are of important scientic value.The aeolian landform is characterized by the aesthetic characteristics of color,view,form,life and color beauty,and has good value of geoscience tourism development.The combination of qualitative evaluation and quantitative analysis can not only enrich the content of aeolian landscape aesthetic research,but also provide reference for the development of geoscientific tourism in the subtropical humid area. |
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| Keywords: | Houtian desert aeolian landforms aesthetic value tourism development Nanchang Jiangxi Province |
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