نتایج جستجو برای: aeolian landforms

تعداد نتایج: 3280  

2009
Dorothy Sack D. Sack

Lakes have long been recognized as being rich storehouses of environmental information. A lake basin collects water, but also sediment, much of which has been weathered and transported via fluvial processes from the near and far reaches of its drainage basin. The amount of water held in a lake is recorded on the landscape in coastal erosional and depositional landforms created at the water’s ed...

Journal: :Terra Nova 2023

Abstract Vulcano is one of the seven volcanic islands composing Aeolian Islands archipelago (Southern Italy), which also includes three other active volcanoes. The island was originally a stratovolcano like Stromboli; afterwards, its shape turned towards complex structure composed several landforms different sizes. This due to great variability tectonic and phenomena, presently showing volcano ...

2014
Antoine Lucas Oded Aharonson Charles Deledalle Alexander G. Hayes Randolph Kirk

The Cassini Synthetic Aperture Radar has been acquiring images of Titan’s surface since October 2004. To date, 59% of Titan’s surface has been imaged by radar, with significant regions imaged more than once. Radar data suffer from speckle noise hindering interpretation of small-scale features and comparison of reimaged regions for change detection. We present here a new image analysis technique...

Journal: :Remote Sensing 2016
Xiaobin Ren Zhibao Dong Guangyin Hu Donghai Zhang Qing Li

Aeolian desertification is a kind of land degradation that is characterized by aeolian activity, resulting from the responses of land ecosystems to climate change and anthropogenic disturbances. The source areas of the Yangtze and Yellow Rivers are typical regions of China’s Tibetan Plateau affected by aeolian desertification. We assessed the vulnerability of these areas to aeolian desertificat...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2001
R Reynolds J Belnap M Reheis P Lamothe F Luiszer

Aeolian dust (windblown silt and clay) is an important component in arid-land ecosystems because it may contribute to soil formation and furnish essential nutrients. Few geologic surfaces, however, have been characterized with respect to dust-accumulation history and resultant nutrient enrichment. We have developed a combination of methods to identify the presence of aeolian dust in arid region...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2015
Wade A Ryberg Michael T Hill Charles W Painter Lee A Fitzgerald

Irreplaceable, self-organizing landforms and the endemic and ecologically specialized biodiversity they support are threatened globally by anthropogenic disturbances. Although the outcome of disrupting landforms is somewhat understood, little information exists that documents population consequences of landform disturbance on endemic biodiversity. Conservation strategies for species dependent u...

Journal: :Atmosphere 2023

Sand drift erosion is common on aeolian landforms, particularly in the Gobi desert where sand often quite strong. can lead to many types of hazards, including severe crop loss, structural damage buildings or infrastructure, and abrasion soil clay components that contribute production fine particulate matter. This article combines flow model with solid particles simulate process a variety enviro...

Journal: :Frontiers in Earth Science 2021

Dynamic changes of aeolian landforms under changing environments in a middle-latitude desert belt is typical problem climate change and related landscape response. It need comprehensive understanding the formation mechanisms dune with supply material suitable for transport favorable conditions sediment availability wind regimes region. Based on evidences from geomorphological, sedimentological,...

Journal: :Frontiers in Earth Science 2022

Different strategies of water uptake by roots in a semi-arid desert are one way that plants adapt to the water-limited environment. In this study, stable isotopes ? 18 O were used analyze variability sources native species Artemisia ordosica during growing season an alpine on Qinghai–Tibet Plateau, China. A. depended primarily from upper soil layers early season, except for those windward, whic...

زارع, غلامرضا , شایان, سیاوش , شریفی‌کیا, محمد ,

In this research, geomorphologic landforms of Darab region were identified and their geomorphotourism capability was evaluated. Satellite images, geological and topographic maps and field data were used for identification of geomorphological landforms and then the geomorphotourism capability of mentioned landforms were determined based on Praloong method. The results of this study reveal that t...

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