Results 61 to 70 of about 1,659,749 (358)

Spatiotemporal Dynamics and Transboundary Differences in Fractional Vegetation Cover in the Red River Basin from 2000 to 2023

Remote Sensing
The vegetation cover in the Red River Basin (RRB) has undergone considerable changes over the past 20 years. Identifying vegetation cover and its transboundary differences is crucial for assessing the ecological health of the region.
Yiwei Zhang, Jintao Mao, Yun Zhang, Bailan Zhou, Zejian Qiu, Yifan Dong, Ronghua Zhong   +6 more
doaj   +1 more source

Overgrazing depresses soil carbon stock through changing plant diversity in temperate grassland of the Loess Plateau

Plant, Soil and Environment, 2018
This study mainly estimates the effect of grazing on plant diversity and soil storages on the northern Loess Plateau of China. Four grazing intensities of ungrazed (UG), light (LG), moderate (MG), and heavy (HG) grassland were selected according to the ...
Guangyu ZHU, Zhuangsheng TANG, Lei CHEN, Zhouping SHANGGUAN, Lei DENG   +4 more
doaj   +1 more source

Numerical modelling of erosion and sedimentation around offshore pipelines [PDF]

, 1990
In this paper a numerical model is presented for the description of the erosion and sedimentation near pipelines on the sea bottom. The model is based on the Navier-Stokes equations and the equation of motion and continuity of sediment.\ud \ud The ...
Beek, F.A. van, Wind, H.G.
core   +8 more sources

Satellite Observations Reveal Northward Vegetation Greenness Shifts in the Greater Mekong Subregion over the Past 23 Years

Remote Sensing
The Greater Mekong Subregion (GMS) economic cooperation program is an effective and fruitful regional cooperation initiative for socioeconomic development in Asia; however, the vegetation change trends and directions in the GMS caused by rapid ...
Bowen Deng, Chenli Liu, Enwei Zhang, Mengjiao He, Yawen Li, Xingwu Duan   +5 more
doaj   +1 more source

Formation of litter crusts and its multifunctional ecological effects in a desert ecosystem

Ecosphere, 2018
Desertification is one of the major issues in global environmental change, and it is of great concern to scientists and policy‐makers in the world. Litter crusts can be of great importance for the restoration and management of desert ecosystems.
Chao Jia, Yu Liu, Honghua He, Hai‐tao Miao, Ze Huang, Jiyong Zheng, Fengpeng Han, Gao‐Lin Wu   +7 more
doaj   +1 more source

Evaluation of the volumetric erosion of spherical electrical contacts using the defect removal method

, 2006
Volumetric erosion is regarded as a significant index for studying the erosion process of electrical switching contacts. Three-dimensional (3-D) surface measurement techniques provide an approach to investigate the geometric characteristics and ...
Hill, M., McBride, J.W., Zhang, D.
core   +1 more source

Lava channel formation during the 2001 eruption on Mount Etna: evidence for mechanical erosion [PDF]

, 2005
We report the direct observation of a peculiar lava channel that was formed near the base of a parasitic cone during the 2001 eruption on Mount Etna. Erosive processes by flowing lava are commonly attributed to thermal erosion.
Carmelo Ferlito, D. Drewry, D. A. Williams, F. J. Ciesla, F. P. Bowden, G. Hulme, H. Pinkerton, H. E. Huppert, Jens Siewert, M. S. Ghiorso, N. W. Ashcroft, S. A. Fagents, T. F. J. Quinn, W. E. Dietrich   +13 more
core   +1 more source

A Soil Erosion Indicator for Supporting Agricultural, Environmental and Climate Policies in the European Union

Remote Sensing, 2020
Soil erosion is one of the eight threats in the Soil Thematic Strategy, the main policy instrument dedicated to soil protection in the European Union (EU).
Panos Panagos, C. Ballabio, J. Poesen, E. Lugato, S. Scarpa, L. Montanarella, P. Borrelli   +6 more
semanticscholar   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Erosion-corrosion maps for carbon steel in crude oil/water slurries : impact angle and applied potential effects [PDF]

, 2010
In studies of erosion-corrosion, there have been few investigations into the effect of tribological issues, such as particle impact and impact angle, on erosion-corrosion of materials in oil field production.
Abdulrahman, G.H., Stack, M.M.
core