Nabkhas can effectively reduce wind speed and intercept sand, slowing down the rate of land desertification and playing an important role in the stability of the oasis ecosystem and the conservation of biodiversity. The purpose of this study is to explore the evolutionary mechanism of nabkha development and wind erosion and sand accumulation of different nabkhas during nabkha development in the oasis region. Five typical nabkhas ( and nabkhas) were selected. Morphological indicators and surface wind erosion and sand accumulation during nabkha development were investigated. Our results confirmed that from the nascent stage to the stable stage, the length, width and height of five nabkhas showed a significant correlation. As nabkha develops, the different parts of nabkha were mainly sand accumulation occurred first on the apex part, then on the windward slope and finally on the leeward slope. When the lateral area of the nabkha was close to the semi-ellipsoidal shape, the nabkha reach the stable stage. The sand accumulation height of nabkhas is the highest. nabkha is able to intercept sand sources from multiple directions due to the pike-shaped branching structure. nabkhas have a high sand accumulation height in the pre-developmental stage. and nabkhas are morphologically irregular with limited sand accumulation height. The results indicate that the surface wind erosion and sand accumulation changes during the development of nabkhas were mainly related to the interaction between vegetation growth and nabkha formation.

中文翻译：

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纳布卡发育的秘密——从地表风蚀积沙看

纳布哈斯能有效降低风速、截沙，减缓土地荒漠化速度，对绿洲生态系统的稳定和生物多样性的保护发挥着重要作用。本研究的目的是探讨绿洲地区纳布卡发育过程中不同纳布卡发育及风蚀积沙的演化机制。选择了五个典型的 nabkhas（和 nabkhas）。对纳布卡发育过程中的形态指标以及地表风蚀和积沙进行了调查。我们的结果证实，从新生阶段到稳定阶段，五个纳布哈的长度、宽度和高度表现出显着的相关性。随着纳布卡的发育，纳布卡的不同部位主要是积沙，首先是顶部，然后是迎风坡，最后是背风坡。当纳布卡的侧面积接近半椭圆形时，纳布卡达到稳定阶段。纳布哈斯的积沙高度最高。由于其矛状分支结构，纳布卡能够从多个方向拦截沙源。纳布哈斯在发育前阶段具有较高的积沙高度。和纳布哈斯形态不规则，积沙高度有限。结果表明，纳布卡发育过程中地表风蚀和积沙变化主要与植被生长和纳布卡形成的相互作用有关。