This study demonstrates that a new method to align microparticles releasing bioactive molecules in microchannels of a hydrogel allows the guiding of growth direction and spacing of vascular networks.
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| http://dx.doi.org/10.1002/adhm.201400153 | DOI Listing |
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Wild Andean camelids promote rapid ecosystem development after glacier retreat.
Sci Rep
December 2024
Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, USA.
Knowing mechanisms that facilitate the emergence of post-glacial ecosystems is urgently required given rapid recent glacial retreat in high latitude and high elevation regions. We examined the effect of nutrient hotspots created via communal dung deposition by wild, native Andean camelids on soil abiotic and biotic properties and plant cover in the rapidly deglaciating Cordillera Vilcanota, southeastern Peru. Animal-modified proglacial soils were significantly enriched in all measured edaphic properties compared to reference glacial-till soils of the same age adjacent to animal-modified soil patches.
View Article and Find Full Text PDFManifestations of a glacier surge in central Himalaya using multi-temporal satellite data.
Environ Sci Pollut Res Int
December 2024
Wadia Institute of Himalayan Geology, Dehradun, 248001, India.
Our understanding of identifying and monitoring surge-type glacier distribution patterns, fluctuations, periodicities, and occurrence mechanism under the changing climate is challenging and scarce due to small numbers, limitations on the spatiotemporal coverage of remote sensing observations, and insufficient field-based glaciological data from the High Mountain Asia. The surging glaciers have caused major hazards, and their movement can destroy peripheral and downstream areas like roads, connecting bridges, villages, and hydropower stations and trigger a glacial lake outburst flood or form a dammed (moraine or ice) lake in High Mountain Asia (HMA) in the recent past. Many glaciers have experienced a mass loss and retreat due to ongoing climate change in HMA in recent decades, whereas studies conducted in the Karakorum, Pamir, Tien Shan, and Kunlun Shan regions have reported the surging of the glaciers.
View Article and Find Full Text PDFEvidence of brines interconnections and different flow patterns within the boulder clay glacier and its moraine (Victoria Land, East Antarctica).
Sci Total Environ
December 2024
Department of Theoretical and Applied Sciences, Insubria University, via Dunant, 3, 21100 Varese, Italy; Climate Change Research Center, Insubria University, Via San Abbondio, 22100 Como, Italy. Electronic address:
Multi-technique integrated surveys were carried out to investigate brine characteristics, connectivity and flow patterns in the Boulder Clay Glacier area, Victoria Land, East Antarctica. Specifically, electromagnetic geophysical surveys focused mainly on Ground Penetrating Radar (GPR) and integrated by Frequency Domain induction, not only demonstrated the presence of brines in the subsurface, but also allowed to image several structures and glaciological elements. Chemical analyses suggested the origin and differentiation of the brines, providing evidence for interconnected pathways.
View Article and Find Full Text PDFGlacier mice as a temporary sink for fallout radionuclides and heavy metals on the Norwegian glacier Austerdalsbreen.
Sci Total Environ
November 2024
Department of Mass Spectrometry, Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
Glacier mice are peculiar rolling or stationary moss balls found on the surface of some glaciers. They may harbour an ecological habitat for cold-adapted invertebrates and microorganisms, but little is known about their potential to accumulate and disseminate harmful elements and substances. In this study, we investigate the presence of fallout radionuclides (Cs, Pu, Pu, Pu, Pb) and heavy metals (Pb, As, Hg, Cd) in glacier mice and compare the results to bryophytes from adjacent glacier ecosystems.
View Article and Find Full Text PDFGlobal systematical and comprehensive overview of mountainous flood risk under climate change and human activities.
Sci Total Environ
September 2024
School of Water and Environment, Chang'an University, Shaanxi Province, Xi'an 710064, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Chang'an University, Minis-try of Education, Xi'an 710054, Shaanxi Province, China; Shaanxi Province Innovation and Introduction Base for Discipline of Urban and Rural Water Security and Rural Revitalization in Arid Areas, Chang'an University, Xi'an 710054, Shaanxi Province, China; Xi'an Monitoring, Modelling and Early Warning of Watershed Spatial Hydrology International Science and Technology Cooperation Base, Chang'an University, Xi'an 710054, Shaanxi Province, China; Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of the Ministry of Water Resources, Chang'an University, Xi'an 710054, Shaanxi Province, China.
Article Synopsis
- Snow-covered mountainous regions play a vital role in the hydrologic cycle, and changes in the cryosphere lead to extreme precipitation events, increasing the risk of flooding worldwide.
- The increase in glacier melting results in the formation of glacial lakes, which can burst and cause catastrophic disasters, including flash floods that can destroy infrastructure and alter the environment.
- Effective management of flooding in mountainous regions requires improved data collection, technology for climate resilience, and public awareness to mitigate risks and adapt to climate change.
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