Results 21 to 30 of about 2,971,347 (195)

Biocrust-linked changes in soil aggregate stability along a climatic gradient in the Chilean Coastal Range [PDF]

SOIL, 2022
Biological soil crusts (biocrusts) composed of cyanobacteria, bacteria, algae, fungi, lichens, and bryophytes stabilize the soil surface. This effect has mainly been studied in arid climates, where biocrusts constitute the main biological agent to ...
N. Riveras-Muñoz, S. Seitz, K. Witzgall, V. Rodríguez, P. Kühn, C. W. Mueller, R. Oses, O. Seguel, D. Wagner, D. Wagner, T. Scholten   +10 more
doaj   +1 more source

Aggregate stability in soils cultivated with eucalyptus

Pesquisa Agropecuária Brasileira, 2011
The objective of this work was to evaluate the aggregate stability of tropical soils under eucalyptus plantation and native vegetation, and assess the relationships between aggregate stability and some soil chemical and physical properties.
Junior Cesar Avanzi, Lloyd Darrell Norton, Marx Leandro Naves Silva, Nilton Curi, Anna Hoffmann Oliveira, Mayesse Aparecida da Silva   +5 more
doaj   +1 more source

Mixed planting improves soil aggregate stability and aggregate-associated C-N-P accumulation in subtropical China

Frontiers in Forests and Global Change, 2023
Research on the variations in soil aggregate stability and ecological stoichiometry at aggregate scales by stand type is of great significance in investigating the distribution, limitation, balance, and cycling of organic carbon, nitrogen, and phosphorus
Yaqin He, Qianchun Zhang, Chenyang Jiang, Yahui Lan, Han Zhang, Shaoming Ye, Shaoming Ye   +6 more
doaj   +1 more source

Stability and aggregation of ranked gene lists [PDF]

Briefings in Bioinformatics, 2009
Ranked gene lists are highly instable in the sense that similar measures of differential gene expression may yield very different rankings, and that a small change of the data set usually affects the obtained gene list considerably. Stability issues have long been under-considered in the literature, but they have grown to a hot topic in the last few ...
Anne-Laure Boulesteix, Martin Slawski
openaire   +2 more sources

Aggregate Stability and Balanced-Budget Rules [PDF]

Journal of Money, Credit and Banking, 2014
It has been shown that under perfect competition and a Cobb-Douglas production function, a basic real business cycle model may exhibit indeterminacy and sunspot fluctuations when income tax rates are determined by a balanced-budget rule. This paper introduces in an otherwise standard real business cycle model a more general and data coherent class of ...
Ghilardi, Matteo, Rossi, Raffaele
openaire   +4 more sources

The stability of soil aggregates in tilled fallow areas in Hyderabad district, Pakistan

Journal of Water and Land Development, 2015
Arid areas are particularly susceptible to soil erosion due to long dry periods and sudden heavy downpours. This study investigates the aggregate size distribution and aggregate stability of twelve tilled fallow areas of Hyderabad district, Sindh ...
Tagar Ahmed, Adamowski Jan
doaj   +1 more source

Effects of freeze-thaw cycles on the size distribution and stability of soil aggregate in the permafrost regions of the Qinghai-Tibetan Plateau

Environmental Research Communications, 2023
As the basic units of soil structure, soil aggregate is essential for maintaining soil stability. Intensified freeze–thaw cycles have deeply affected the size distribution and stability of aggregate under global warming.
Chenjie Dong, Yuzheng Gu, Yinglan Jia, Peijie Wei, Jingwei Jin, Yanfang Deng, Peizhi Yang, Shengyun Chen   +7 more
doaj   +1 more source

Stability of Aggregation Graph Neural Networks

IEEE Transactions on Signal and Information Processing over Networks, 2023
In this paper we study the stability properties of aggregation graph neural networks (Agg-GNNs) considering perturbations of the underlying graph. An Agg-GNN is a hybrid architecture where information is defined on the nodes of a graph, but it is processed block-wise by Euclidean CNNs on the nodes after several diffusions on the graph shift operator ...
Alejandro Parada-Mayorga, Zhiyang Wang, Fernando Gama, Alejandro Ribeiro   +3 more
openaire   +4 more sources

Arbuscular mycorrhizal hyphal networks and glomalin-related soil protein jointly promote soil aggregation and alter aggregate hierarchy in Calcaric Regosol

Geoderma
The Loess Plateau of China (LPC) is one of the most severely eroded areas in the arid and semi-arid regions of northern China. Improving soil aggregate stability and hierarchy in Calcaric Regosol is vital for mitigating soil erosion.
Lingling Ji, Xiuhua Chen, Chuanqin Huang, Wenfeng Tan   +3 more
doaj   +1 more source

Performance evaluation of hot mix asphalt (HMA) using glass fiber as a partial replacement of fine aggregate [PDF]

Archives of Civil Engineering
Hot Mix Asphalt mixtures are often used as the top layer of pavement structures to build roads worldwide. Hot Mix Asphalt (HMA) mixtures combine bitumen and aggregate to produce roads.
Liyana Ahmad Sofri, Nurul Hanisah Daud, Mohd Mustafa Al Bakri Abdullah, Ahmad Faizal Mansor, Nur Liza Rahim, Pawel Pietrusiewicz   +5 more
doaj   +1 more source