Results 71 to 80 of about 61,477 (293)

The parabolic blowout dune of Kangasjärvi in Saarijärvi, central Finland [PDF]

Bulletin of the Geological Society of Finland, 1990
This study describes the morphology, internal structure, sediment and origin of a parabolic blowout dune located at Kangasjärvi in Central Finland. The U-shaped dune is an isolated feature situated on a sand plain close to an esker ridge.
J. Mäkelä, K. Illmer
doaj   +1 more source

Long‐Term Operation of Photovoltaic Power Stations Promotes Soil Carbon Sequestration but Induces Stoichiometric C:N:P Imbalance in Desert Ecosystems

Land Degradation &Development, EarlyView.
ABSTRACT Soil carbon‐nitrogen‐phosphorus (C:N:P) stoichiometry governs nutrient cycling and carbon sequestration in desert ecosystems, yet how large‐scale photovoltaic (PV) deployment, a cornerstone of global carbon neutrality, shifts these stoichiometric balances and whether such shifts enhance or degrade long‐term land function remain unresolved over
Anlin Wang, Fenghua Sun, Longfei Chen, Hong Yang, Panxing He, Zhanjun Wang, Xudong Wu, D. M. Sabra, Rui Ma, Jianhua Xiao   +9 more
wiley   +1 more source

Fuljis: A Discussion [PDF]

Desert
In the late nineteenth century Anne and Wilfrid Blunt described horse-shoe shaped hollows they called fuljis in dunes in the Nafud sandsea of Nejd in Arabia.
Andrew Goudie
doaj   +1 more source

Exploring the contributions of vegetation and dune size to early dune development using unmanned aerial vehicle (UAV) imaging [PDF]

Biogeosciences, 2017
Dune development along highly dynamic land–sea boundaries is the result of interaction between vegetation and dune size with sedimentation and erosion processes. Disentangling the contribution of vegetation characteristics from that of dune size would
M. E. B. van Puijenbroek, C. Nolet, A. V. de Groot, J. M. Suomalainen, J. M. Suomalainen, M. J. P. M. Riksen, F. Berendse, J. Limpens   +7 more
doaj   +1 more source

Carbon–Phosphorus Limitation Is Associated With Shifts in Microbial Life‐History Strategies Across Vegetation Restoration Modes in Alpine Sandy Land on the Tibetan Plateau

Land Degradation &Development, EarlyView.
ABSTRACT Alpine sandy land on the Tibetan Plateau is fragile, with poorly developed soils, low nutrient availability, and weak biological resilience. Vegetation restoration is widely used to improve soil functioning, yet how microbial nutrient limitation and life‐history strategies vary among restoration modes remains unclear.
Linna Jiang, Zhiyong Zhang, Tao Yang, Gesangquzhen, Jibin Nan, Yuting Wang, Qiongyu Guo, Zhixin Liu, Ruixin Ma, Jinxing Zhou   +9 more
wiley   +1 more source

28 years of vegetation change (1978 – 2006) in a calcareous coastal dune system [PDF]

, 2010
Changes in vegetation structure and composition over a 28 year period (1978–2006) following removal of human-induced disturbances, were examined in a calcareous coastal dune system in Point Nepean National Park (380 19’S, 1440 41’E) in south-eastern ...
Turner, Vivienne, Douglas, Imelda, Moxham, Claire, Walker, Gidja   +3 more
core  

Synergistic Regulation of Soil Function and Wind Erosion Resistance by Sand Barriers, Vegetation, and Artificial Biological Crust in the Tengger Desert

Land Degradation &Development, EarlyView.
ABSTRACT Aeolian desertification poses a critical threat to ecosystem stability in arid regions worldwide. Although the combination of sand barriers and vegetation has been widely applied for sand fixation, its long‐term effectiveness is constrained by barrier degradation, slow natural development of biological soil crusts (BSCs), and the resulting ...
Bin Pan, Chen Meng
wiley   +1 more source

Revealing Dust Source Changes in East Asia From Past to Future: An Interpretable Deep Learning Approach

Land Degradation &Development, EarlyView.
ABSTRACT Aeolian dust source areas are controlled by climate and human activities and are closely associated with land degradation, yet their long‐term evolution under global warming remains insufficiently quantified. An integrated framework that couples a U‐Net segmentation model with Shapley Additive Explanations (SHAP) was built to map and attribute
Yanyu Li, Qizhong Wu, Xueshun Chen, Jiang Yue, Jieying He, Huaqiong Cheng   +5 more
wiley   +1 more source

Seasonality and Small Spatial-Scale Variation of Chlorophyll a Fluorescence in Bryophyte Syntrichia ruralis [Hedw.] in Semi-Arid Sandy Grassland, Hungary

Plants, 2020
Bryophytes face challenges due to global climate change which is leading to in-depth research in monitoring and studying their photosynthetic activity. The aim of this preliminary experiment was to study the seasonal variation trend in the chlorophyll a ...
Ruchika, Zsolt Csintalan, Evelin Ramóna Péli   +2 more
doaj   +1 more source

Summary of the Second International Planetary Dunes Workshop: Planetary Analogs — Integrating Models, Remote Sensing, and Field Data, Alamosa, Colorado, USA, May 18–21, 2010 [PDF]

, 2010
The Second International Planetary Dunes Workshop took place in Alamosa, Colorado, USA from May 18–21, 2010. The workshop brought together researchers from diverse backgrounds to foster discussion and collaboration regarding terrestrial and extra ...
Tirsch, D., Lancaster, N., Lori K. Fenton, Hayward, R.K., Titus, T.N., Bishop, Marc A., Tirsch, Daniela, Andrew Valdez, Bourke, M.C., Bristow, Charles S., Bourke, Mary C., Valdez, Andrew, Michaels, T.I., Lancaster, Nicolas, Rosalyn K. Hayward, Briony H. Horgan, Horgan, B.H., Horgan, Briony H., Bishop, M.A., Mary C. Bourke, Timothy N. Titus, Timothy I. Michaels, Hayward, Rosalyn K., Michaels, Timothy I., Charles S. Bristow, Mark A. Bishop, Bristow, Charlie S., Daniela Tirsch, Fenton, L.K., Titus, Timothy N., Nicholas Lancaster, Fenton, Lori   +31 more
core   +1 more source