Results 281 to 290 of about 4,583,324 (336)
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Aggregation and Aggregate Stability in Forest and Range Soils

Soil Science Society of America Journal, 1988
Abstract A simple method for measuring aggregation and aggregate stability across soils of widely varying structure and texture is presented. The method uses standard techniques of particle‐size analysis to measure yield of fine particles (<26‐µm estimated spherical diam.) after three types of dispersion treatments: shaking in ...
T. C. Strickland   +3 more
openaire   +1 more source

Effects of pore structure characterized by synchrotron-based micro-computed tomography on aggregate stability of black soil under freeze-thaw cycles

, 2020
Soil structure affects soil quality, which in turn influences agricultural productivity. In north-eastern China, periodic melting of the frozen layer is very common in late autumn and early spring.
R. Ma, Yu Jiang, Bo Liu, H. Fan
semanticscholar   +1 more source

Increased soil aggregate stability is strongly correlated with root and soil properties along a gradient of secondary succession on the Loess Plateau

, 2020
The stability of soil aggregates is an indicator of restoration of soil in degraded ecosystems. A multitude of factors such as properties of plant roots and soil have been suggested to contribute to aggregate stability, but little information is ...
Lie Xiao   +6 more
semanticscholar   +1 more source

Stability of Some Mechanisms of Chemotactic Aggregation

SIAM Journal on Applied Mathematics, 2002
The stability of a blow-up mechanism for a particular Keller-Segel model that yields chemotactic aggregation is investigated. It is shown using matched asymptotic methods that the considered blow-up mechanism is stable. It is shown that small perturbations of the initial data produce a small shifting on the blow-up time and the blow-up point but not ...
openaire   +1 more source

Soil fragmentation and aggregate stability as affected by conventional tillage implements and relations with fractal dimensions

, 2020
Due to a lack of accurate information regarding soil aggregate size distribution and stability, farmers in Sindh, Pakistan often apply excessive tillage, creating an overly fine seedbed that can lead to the depletion of soil organic matter (SOM) and make
A. Tagar   +6 more
semanticscholar   +1 more source

Effects of rehabilitation through afforestation on soil aggregate stability and aggregate-associated carbon after forest fires in subtropical China

, 2020
The recovery of carbon stocks through the afforestation of degraded lands is a management practice that can be applied to mitigate rising concentrations of atmospheric carbon dioxide; however, due to economic pressure, most plantations are cut down in ...
Yunxing Bai, Yunchao Zhou, Hong-bo He
semanticscholar   +1 more source

GLOBAL STABILITY OF NASH EQUILIBRIUM IN AGGREGATIVE GAMES [PDF]

open access: possibleInternational Game Theory Review, 2014
If an aggregative game satisfies the generalized Hahn conditions, then there exists a unique Nash equilibrium which may not be interior and is globally asymptotically stable under two alternative continuous adjustment processes with non-negativity constraints.
KOJI OKUGUCHI, TAKESHI YAMAZAKI
openaire   +2 more sources

Using soil aggregate stability and erodibility to evaluate the sustainability of large-scale afforestation of Robinia pseudoacacia and Caragana korshinskii in the Loess Plateau

open access: yesForest Ecology and Management, 2019
Revegetation in fragile ecosystems is an efficient means to increase aggregate stability and thus reduce soil erosion. However, the influence of large-scale afforestation on soil aggregate stability and erodibility in the Loess Plateau is not well ...
Baorong Wang, Rentian Ma, Qiang Yu
exaly   +2 more sources

Importance of soil interparticle forces and organic matter for aggregate stability in a temperate soil and a subtropical soil

, 2020
Soil organic matter (SOM) and interparticle forces, including the electrostatic repulsive force (ERF), surface-hydration repulsive force (SHRF) and van der Waals attractive force (vDWAF), play crucial roles in aggregate stability.
Zhenghong Yu   +6 more
semanticscholar   +1 more source

Response of soil aggregate stability and distribution of organic carbon to alpine grassland degradation in Northwest Sichuan

, 2020
Soil aggregate stability and the distribution of organic carbon in different aggregate fractions would be affected by alpine grassland degradation. We investigated the aggregate stability by mean weight diameter (MWD), geometric mean diameter (GMD), and ...
Li Ma, Qing Wang, Songtao Shen
semanticscholar   +1 more source

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