Results 91 to 100 of about 9,919 (207)
Understanding the stability dynamics of naturally occurring grassland succession under nutrient enrichment is crucial for effective ecosystem management. We carried out an 11‐year field experiment to examine how grassland community stability responds to nitrogen (N) enrichment across the three successional stages (early‐, mid‐ and late‐successional ...
Hanghang Tuo +14 more
wiley +1 more source
Forest ecosystem research in Hainich National Park (Thuringia) : first results on flora and vegetation in stands with contrasting tree species diversity [PDF]
A floristic description is presented of the study sites of the Research Training Group “The role of biodi-versity for biogeochemical cycles and biotic interactions in temperate deciduous forests”.
Bernhardt-Römermann, Markus +2 more
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Abstract Riverine dissolved silicon (DSi) dynamics reflect integrated geologic, hydrologic, climatic, and ecological controls. We compiled annual DSi data for 337 rivers across four continents and trained interpretable machine‐learning models to predict concentrations and yields from 28 watershed variables.
Sidney A. Bush +6 more
wiley +1 more source
An Analysis of Vegetation and Microbiome Recovery in Abandoned Agricultural Fields
This study investigated the natural recovery of biodiversity in formerly cultivated fields in the Eastern Cape, South Africa, by comparing plant and bacterial communities across different successional ages. We found that diversity levels in old fields began to resemble natural conditions for both community types, indicating a positive recovery ...
Heike Oosthuysen +3 more
wiley +1 more source
Xi'an Q3 undisturbed loess was chosen to artificially prepare saline undisturbed loess specimens with different gradients of sodium sulphate content.
XU Jian 1, 2, ZHANG Ming-hui 1, LI Yan-feng 1, WU Zhi-peng 1
doaj +1 more source
ABSTRACT Modern studies show that soil erosion results in a loss of ecosystem function, particularly fertility, and is a cause of declining agricultural yields. However, despite the well‐attested high rates of soil erosion across Roman and medieval Europe there appears to have been little or no soil‐associated decline in agricultural production—the ...
Ben Pears +5 more
wiley +1 more source
A quantitative evaluation method regarding the natural void ratio of undisturbed loess
Objective The natural void ratio is the most frequently used and important characterisation parameter of the initial structure at the macroscopic level. Therefore, the analysis and prediction of the distribution pattern of the natural void ratio of loess is important for understanding undisturbed loess disaster mechanics behaviour and for disaster ...
Zhihui Gao, Lu Zuo
openaire +1 more source
Water-holding characteristics of loess in Xingyang
Loess is a water-sensitive soil whose hydraulic behavior strongly influences its engineering performance. This study investigates the soil-water characteristic curves (SWCC) and water-holding behavior of undisturbed and remolded Q3 loess from Xingyang ...
Lingchao Meng +6 more
doaj +1 more source
A Study on the Dynamic Strength and Index Model of Artificial Structural Loess
Loess is a distinctly structured soil. Undisturbed loess is prone to geological hazards, such as liquefaction and landslides under dynamic loads. There are also problems such as the inhomogeneity, anisotropy, and disturbance of in situ sampling.
Yu Xi +4 more
doaj +1 more source
Evaluation of Human-impacted Soils in Szeged (SE Hungary) with Special Emphasis on Physical, Chemical and Biological Properties [PDF]
The main differences between urban and natural soils result from the accumulation of anthropogenic materials, which form a cultural layer with specific properties and composition.
Farsang, Andrea, Puskás, Irén
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