中文摘要：

鄱阳湖湖滨的沙山是形成于湿润地区规模较大的风沙堆积地貌，但星子县的沙岭沙山却发育特殊的线性风蚀地貌，这表明环境发生过显著的变化。通过野外地貌调查，发现沙山的线性风蚀地貌可分为4种类型：风蚀坑、风蚀槽、风蚀垄和风蚀残墩。本文分析了这4种风蚀地貌的形态特征、分布以及相互关系，并提出沙山风蚀地貌的发育模式，即3段2期的发育模式：风蚀作用的第1阶段形成风蚀坑，第2阶段形成风蚀槽和风蚀垄，第3阶段形成风蚀残墩，至此完整的第1期风蚀地貌发育完成；以风蚀残墩顶面为代表的老地面被侵蚀殆尽，相对平坦的新地面形成，其上发育属于第2期风蚀地貌的第1阶段的风蚀坑。地貌年龄测量显示，第1期风蚀作用发生于大约6～7ka前，第2期则发生于约0．3ka前。第1期风蚀地貌发育可能与本区新石器时代中期不断扩大的史前人类活动有关，而第2期风蚀地貌是清代乾隆年间过度樵采引起的。可见人类活动对湿润地区沙山风蚀地貌的形成有重要的影响。

英文摘要：

The sand hill on the shore of the Poyang Lake is generally regarded as a large scale wind accumulated landform formed in a humid region. The Shaling sand hill （ 29.361 ° N, 116.016 °E） , covering an area about 10km2 in Xingzi County of Jiangxi Province, belongs to a high energy environment and has a narrow unimodal directional variability. The unique linear wind eroded landforms are developed and aligned along the dominant northeast wind, which indicating the environment has undergone significant changes. However, the evolution of these wind eroded landforms has not been studied. We explore the classification of the linear eroded landforms based on field observation and the age determination. Our field geomorphological survey confirms that the linear wind eroded landforms can be divided into 4 types： blowout, wind eroded trough, wind eroded ridge and wind eroded relic mound. We put forward an evolution mode through analyzing the morphological characteristics, distribution and interrelation of the 4 types of wind eroded landforms. The so-called 3 Phases and 2 Stages Mode can depict the evolution of wind eroded landform. The blowouts firstly formed during Phase 1, and then the wind eroded troughs and ridges developed during Phase 2,the wind eroded relic mounds lastly shaped during Phase 3. So far the Stage 1 of evolution of wind eroded landforms ended and the old ground represented by the top of the wind eroded relic mounds was almost eroded away. A new relatively plat ground appeared, where the new blowouts formed, which belongs to another generation,/, e. Phase 1 of Stage 2. Optically stimulated luminescence（OSL） dating is carried out on 3 profiles（ LS1, LS2, and LS3 ） and 4 typical landforms （ YD1, YD7, TB1, and TB4）. The formation age of wind eroded landforms can be estimated by comparing the stratigraphical ages of the correlated sediments leeward, such as the depositional lobe with the erosional walls. 19 OSL ages show that the wind erosion of Stage 1 occurred ca. 6 7ka ago and the Stage 2