Results 111 to 120 of about 2,641,272 (265)

A preliminary botanical assessment of an isolated inselberg archipelago in the Namib Sand Sea, Namibia

Namibian Journal of Environment
The inselbergs of the Namib Desert serve as biodiversity refugia in a matrix of largely depauperate gravel plains or sand dunes. Despite their ecological importance and expected species richness, the biota of most Namib inselbergs has not been surveyed.
S Hatt, E Marais, G Maggs-Kölling
doaj   +1 more source

Contribution of River Mouth Reach to Sediment Load of the Yangtze River

Advances in Meteorology, 2015
This paper examined the sediment gain and loss in the river mouth reach of the Yangtze River by considering sediment load from the local tributaries, erosion/accretion of the river course, impacts of sand mining, and water extraction.
C. Wang, S. B. Dai, L. S. Ran, L. Jiang, W. T. Li   +4 more
doaj   +1 more source

Variable Rate Irrigation: A Long‐Term Simulated and Field Data Analyses of Irrigation Practices, Field Variability, Economic Feasibility and Profitability

Irrigation and Drainage, EarlyView.
ABSTRACT Long‐term economic analyses of variable rate irrigation (VRI) strategies were performed compared with uniform irrigation management (UIM) in a reference production field using the AquaCrop model. Five strategies to trigger irrigation were as follows: (Field Capacity‐VRI, Driest Soil Trigger‐VRI, Water Mining‐VRI, Conventional Uniform ...
Sahil Sharma, Suat Irmak, William Kranz
wiley   +1 more source

Literature Review of Unconsolidated Sediment in San Francisco Bay and Nearby Pacific Ocean Coast

San Francisco Estuary and Watershed Science, 2009
A review of the geologic literature regarding sedimentation in the San Francisco Bay estuarine system shows that the main part of the bay occupies a structural tectonic depression that developed in Pleistocene time. Eastern parts, including San Pablo Bay
Barry R. Keller
doaj  

Shoreline changes and its impact on coastal communities: A case study of Senya Beraku, Ghana

Scientific African
Senya Beraku on the southern coast of Ghana is a heavily populated community and serves as one largest fishing communities. The area is threatened by coastal erosion impacting fishing, tourism, endangered ecosystems, damaged infrastructure and affecting ...
Elorm Fiawotoafor, Solomon S.R. Gidigasu, Emmanuel Gikunoo, Jonathan A.Q. Ballard, Bright Andoh-Baidoo   +4 more
doaj   +1 more source

Evaluating Water–Energy–Food Nexus Strategies to Address Resource Scarcity in the Crocodile River Catchment, South Africa

Irrigation and Drainage, EarlyView.
ABSTRACT The water–energy–food (WEF) nexus approach highlights the interdependence of water, energy and food resources, all of which play central roles in agriculture, especially irrigation. A WEF nexus lens was applied to Mpumalanga's Crocodile River catchment, a vital irrigation area that significantly contributes to South Africa's staple food ...
N. Masekwana, M. van der Laan, S. Walker, Nicky Taylor   +3 more
wiley   +1 more source

Cytotoxic and Genotoxic Effects in Buccal Cells of Sandstone Quarry Workers

Journal of Applied Toxicology, EarlyView.
ABSTRACT Mineral extraction poses significant occupational health risks, particularly from respirable crystalline silica exposure. Sandstone quarrying generates substantial dust, yet evidence of its genotoxic effects remains limited. This study investigated cytogenotoxic damage in sandstone quarry workers from southern Brazil using the buccal ...
Ana Carolina de Quadros Duarte, Maria Isabela Toniazzo, Rayne Vallada da Luz, Cleisson Guimarães Bueno, Daniela Müller de Quevedo, Luciano Basso da Silva, Daiane Bolzan Berlese   +6 more
wiley   +1 more source

Overview of the re‐evaluation of trace elements as nutritional feed additives in the European Union: characterization, safety, and efficacy

Journal of the Science of Food and Agriculture, EarlyView.
Abstract The re‐evaluation of feed additives in the European Union was outlined in the Regulation (EC) No 1831/2003. The primary objectives were to ensure safety and verify efficacy, as well as to update authorizations and phase out unsafe additives or those in which the industry expressed no interest.
Gloria López‐Gálvez, Maria de Lourdes Bastos, Francesco Cubadda, Mikolaj A Gralak, Christer Hogstrand, Matteo L Innocenti, Joop de Knecht, Marta López‐Alonso, Alberto Mantovani, Alena Pechová, Fernando Ramos, Jürgen Gropp   +11 more
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

Investigation of Water Resources Utilization and Agricultural Development in Mu Us Sandy Lan

Shuitu baochi yanjiu, 2020
In order to explore the sustainable use of desert groundwater resources, taking the Mu Us Sandy Land in Yulin as the example, we carried out the investigation on the challenges of water resources utilization and agricultural development in the sandy land,
HUAI Jianjun, SHANGGUAN Zhouping
doaj