Results 131 to 140 of about 281,792 (338)
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Under continued climate warming, understanding present‐day permafrost distribution and the controls on ground thaw are critical for predicting permafrost thaw trajectories and associated implications. This study presents a high‐resolution investigation of permafrost extent and active layer thickness (ALT) across a coniferous forested hillslope
Alana Muenchrath +2 more
wiley +1 more source
Calculation Methods of Seepage Coefficient for Clay Based on the Permeation Mechanism
Advances in Civil Engineering, 2019 The existing empirical methods of the seepage coefficient for clay have difficulty in parameter acquisition and are poor in calculation accuracy, and it is possible to find reasonable ones based on the mature empirical methods of coarse-grained soil ...
Yu Zhang +3 more
doaj +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima +3 more
wiley +1 more source
Coarse-Graining Fields in Particle-Based Soil Models
, 2020 In soil, where trees and crops grow, heavy vehicles shear and compact the soil, leading to reduced plant growth and diminished nutrient recycling. Computer simulations offer the possibility to improve the understanding of these undesired phenomena. In this thesis, soils were modelled as large collections of contacting spherical particles using the ...
openaire +1 more source
Using Fine Sediment Monitoring to Quantify Sand Loading Over Time
River Research and Applications, EarlyView.ABSTRACT Riverine sand loading can lead to geomorphic change, impacting river processes like lateral migration and vertical aggradation or degradation. Yet many sediment monitoring programs track only fine sediment measurable as total suspended solids (TSS). Here, we assess the ability for TSS data to be used to determine sand loading.
Andrew P. Kasun, Karen B. Gran
wiley +1 more source
Dissipative behaviour of reinforced-earth retaining structures under severe ground motion [PDF]
, 2015 This paper focuses on the seismic performance of geosynthetic-reinforced retaining walls (GRWs) that several evidences have shown to be generally adequate.
CALLISTO, Luigi +2 more
core
Geomorphic Responses to Post‐Grazing Recovery and Stream Restoration in Semiarid Grassland Streams
River Research and Applications, EarlyView.ABSTRACT Semiarid grassland streams are sensitive to land use, climate, extreme discharges, and internal geomorphic thresholds that drive episodic erosion. Rooted in a process‐based philosophy and commonly applied to historically wood‐rich, beaver‐modified systems, low‐tech process‐based restoration using structures is increasingly being extended to ...
Owen Richardson, Ellen Wohl
wiley +1 more source
Studies of lunar soil mechanics, final report, jun. 15, 1963 - dec. 15, 1964 [PDF]
Properties of simulated lunar soils in lunar ...
Nelson, J. D., Vey, E.
core +1 more source
Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers
River Research and Applications, EarlyView.ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl +8 more
wiley +1 more source