Results 71 to 80 of about 73,836 (303)

Satellite hindcasts of foliar traits reveal a subtle but consistent relaxation of conservativeness in a biodiverse mountain grassland over the last four decades

Ecography, EarlyView.
Projected warming and drying raise concerns about the resilience of stress‐adapted ecosystems, including the Brazilian Campo Rupestre, an exceptionally biodiverse mountaintop grassland mosaic on ancient, nutrient‐poor substrates. Here, we combine field‐based trait data and long‐term remote sensing to assess the functional structure and temporal ...
Renata Maia, Milton Barbosa, Daniel Negreiros, Geraldo Wilson Fernandes, Yadvinder Malhi, Jesus Aguirre‐Gutiérrez   +5 more
wiley   +1 more source

Geological notes and local details for 1:10 000 sheet TG 32 NE (Lessingham) : part of 1:50 000 sheet 148 (North Walsham) [PDF]

, 1996
The following report is designed to be used in conjunction with 1 : 10 000 Geological Sheet TG 32 NE. Uncoloured copies of the map may be purchased fkom the Survey's headquarters at Keyworth.
Hamblin, R.J.O.
core  

Static and dynamic behavior of loose sand and silty sand treated with guar and agar gums (Micro and macro study)

Carbohydrate Polymer Technologies and Applications
This study evaluates the impact of guar gum and agar gum on the enhancement of mechanical, shear, and liquefaction resistance properties of loose sand and silty sand.
Parviz Maleki, Mehdi Gharib, Saman Soleimani Kutanaei, Hossein Ghasemnejad, Nima Ranjbar Malidarreh   +4 more
doaj   +1 more source

Types and Changing Trends of Sediments in the Coastal Watersof Shandong Province

Haiyang Kaifa yu guanli, 2022
Based on the survey data of surface sediments in Shandong coastal waters, the temporal and spatial variation characteristics of sediment granularity and its influencing factors were analyzed.
Liping YOU, Yuting ZHAO, Shan SUN, Juan ZHANG, Weili GU, Xiaoxiao DONG, Jiahui LI, Yuanqing MA   +7 more
doaj  

Exploring variations in potential carbon and nitrogen mineralization in managed grasslands among the diversity of soils in North Carolina

Grassland Research, EarlyView.
Under steady–state conditions, potential nitrogen mineralization in soil under grasslands is closely tied to potential carbon mineralization. This study provides supporting evidence that field–specific nitrogen fertilizer recommendations could be indicated by using a simple and rapid analysis of soil–test biological activity.
Alan J. Franzluebbers
wiley   +1 more source

Optical dating and sedimentary record from the terrace depositional profile of the Warta River (Central Poland) [PDF]

, 2014
Results of OSL dating and sedimentary studies from the profile of the low alluvial terrace of the middle Warta River are presented. The samples were dated using the single-aliquot regenera-tive method.
Adamiec, Grzegorz, Dzieduszyńska, Danuta, Kittel, Piotr, Moska, Piotr, Petera-Zganiacz, Joanna, Twardy, Juliusz   +5 more
core   +2 more sources

Study on mechanical properties and mesostructure of subgrade silty sand under freeze-thaw cycles

Frontiers in Materials
IntroductionFreeze–thaw cycles induce frost heave and thaw settlement in subgrades, degrade their service performance, and jeopardize traffic safety, making them primary concerns for transportation infrastructure in seasonally frozen regions.
Da Xiang, Zhongming He, Zhenhong Yan
doaj   +1 more source

Impact of Irrigation Scheduling on Corn Yield and Water Balance in Sandy Soils of Central Minnesota Using the EPIC Model.

Irrigation and Drainage, EarlyView.
ABSTRACT Efficient irrigation scheduling is critical in sandy soils to achieve optimum yield and maximum net benefit with minimum environmental concerns. The Environmental Policy Integrated Climate (EPIC) model was used to study the impacts of autoirrigation of corn on crop yield and soil water balance during 2019–2021 at −300 and −450 kPa for loamy ...
Muhammad Tahir, Vasudha Sharma, Gurparteet Singh, David J. Mulla   +3 more
wiley   +1 more source

Bridge distress caused by approach embankment settlement [PDF]

, 2008
Surtees Bridge, which carries the A66(T) over the River Tees near Thornaby-on-Tees in the UK, has been showing signs of distress that predate its opening in 1981.
Allied Exploration and Geotechnics Limited, Barker R. M., British Geological Survey (BGS), Bullen and Partners, C. A. Jones, C. J. Danilewicz, Casagrande A., D. I. Stewart, Exploration Associates, Hopkins T. C., Lambe T. W., Mcclave J. T., Mindess S., Moore D. S., Moulton L. K., Osterberg J. O., Padfield C. J., Ritchies, Ritchies, Soil Mechanics, Soil Mechanics   +20 more
core   +1 more source

Smart Sensor‐Integrated Lysimeter System for Affordable on‐Farm Crop Water Monitoring and Irrigation Management

Irrigation and Drainage, EarlyView.
ABSTRACT Accurate monitoring of crop water use is critical for precision irrigation, yet conventional lysimeter systems remain too costly and complex for widespread adoption. This study presents the development and field validation of a low‐cost, information and communication technology (ICT)‐enabled weighing lysimeter system that integrates load cells,
Stephen Okwang, Younggu Her, Taeil Jang
wiley   +1 more source