Results 61 to 70 of about 15,709,891 (294)

Degradation of the karst environment

, 2023
Karst environments are extremely fragile, due to the peculiarities of their geology and hydrogeology, and can be easily disturbed by human actions through a variety of activities.
Liso I. S., D’Ettorre U. S., Parise M.
core  

Probabilistic characterization of seepage‐induced tunnel face failure via a two‐phase double‐point material point method

Deep Underground Science and Engineering, EarlyView.
To address seepage‐induced tunnel face collapse, this study develops a two‐phase double‐point MPM framework to capture large‐deformation hydro‐mechanical interactions. Incorporating a cementation‐based constitutive model with dynamic permeability updates, the model is successfully validated against saturated granular‐column collapse experiments ...
Yue Tong, Mingliang Zhou, Jie Xu, Zeyu Li, Yisheng Zhao, Jin An, Hongwei Huang   +6 more
wiley   +1 more source

Quantifying the effects of landscape and habitat characteristics on structuring bird assemblages in urban habitat patches

Scientific Reports
Understanding the determinants of biodiversity in fragmented habitats is fundamental for informing sustainable landscape development, especially in urban landscapes that substantially fragment natural habitat. However, the relative roles of landscape and
Yun Zhu, Yu Liu, Shang Sheng, Jinfeng Zheng, Su Wu, Zhaoyang Cao, Kai Zhang, Yu Xu   +7 more
doaj   +1 more source

Assessment on water resources carrying capacity in karst areas by using an innovative DPESBRM concept model and cloud model.

Science of the Total Environment, 2020
The shortage of water resources in karst areas is mainly caused by the development of karst landforms, poor availability of water resources and the difficulty of utilization. To reasonably evaluate water resources carrying capacity (WRCC) of karst areas,
Tao Peng, Hong-Wei Deng, Yun Lin, Zhi-Yuan Jin   +3 more
semanticscholar   +1 more source

Renewable energy mapping in Northeastern Morocco: A geographic information system‐based comparison of geothermal, solar, and wind potential in the Guercif‐Guilliz and Beni Snassen regions

Deep Underground Science and Engineering, EarlyView.
The graphical abstract summarizes a geographic information system (GIS)‐based synthesis of renewable energy resources in Northeastern Morocco, focusing on the Guercif‐Guilliz and Beni Snassen areas. It visually presents the spatial distribution of solar irradiation and wind energy potential derived from available datasets, alongside their relationship ...
Meryem Redouane, Hind Khalis, Faouziya Haissen, Othman Sadki, Hicham El Asmi, Abdelbarie Redouane   +5 more
wiley   +1 more source

Chloroplast phylogenomics provides new evidence for reevaluating the taxonomic placement of medicinal Agapetes

Frontiers in Plant Science
Species of Agapetes are recognized for their radish-like tubers, which possess significant medicinal properties. Resolving the long-standing phylogenetic controversies between Agapetes and its relatives is crucial for facilitating the utilization of this
Jindong Wang, Jindong Wang, Jindong Wang, Baizhu Li, Yunjing Liu, Yunjing Liu, Yunjing Liu, Yu Li, Yin Yi, Yin Yi, Yin Yi, Wei Xie, Wei Xie, Wei Xie, Xiaoxin Tang, Xiaoxin Tang, Xiaoxin Tang, Xiaoxin Tang   +17 more
doaj   +1 more source

An Integrated Evaluation Method for the Grouting Effect in Karst Areas

, 2021
Our proposed integrated evaluation method for the grouting effect in karst areas is based on the cloud model (CM), the analytic hierarchical process (AHP), and a fuzzy comprehensive evaluation system.
Qin Jin, Ze-Hua Bu, Dongdong Pan, Hai-Yan Li, Zhao-Feng Li, Yichi Zhang   +5 more
semanticscholar   +1 more source

Dynamic Response and Stability Analysis of High-Speed Railway Subgrade in Karst Areas

IEEE Access, 2021
The increase in railway coverage significantly increased the railway mileage in karst areas. However, the fragile ecosystem in karst areas and weak mechanical performance in cavities cause hidden railway safety hazards.
Xin Li, Mingzhou Bai, Zi-Jun Wei, Peng-Xiang Li, Hai Shi, Ye Zhang   +5 more
semanticscholar   +1 more source

Taxon‐dependent multisite species turnover in fragmented habitats: comparing zeta diversity across birds, butterflies, and cursorial hunting spiders

Ecography, EarlyView.
Habitat fragmentation alters species diversity and reshapes community composition. However, conventional pairwise approaches to compositional variation (i.e. beta diversity metrics) do not explicitly characterize how species sharing or turnover change with the number of habitat patches.
Shirui Yu, Yufeng Zhou, Qiyu Jiang, Jie Xie, Yan Wang, Qiwen Du, Shang Sheng, Yaqian Cui, Kai Zhang, Zhixin Wen, Hao Yu, Yu Xu   +11 more
wiley   +1 more source

Molecular identification and phylogenetic analysis of Polygonatum Kingianum with different floral colors on the basis of chloroplast genomes

BMC Plant Biology
Polygonatum kingianum, a plant with both medicinal and edible properties, demonstrates considerable variation in perianth coloration, making its differentiation from related species through morphological characteristics particularly challenging.
Jindong Wang, Xingyu Guo, Baizhu Li, Chao Zhang, Yin Yi, Ming Tang, Xiaoxin Tang   +6 more
doaj   +1 more source