Seasonal delivery of organic matter and metals to farm canals: effect on sediment phosphorus storage capacity

Shale oil and gas have been discovered in the lacustrine Zhangjiatan Shale in the southern Ordos Basin, China. To study the distribution of extractable organic matter (EOM) in the Zhangjiatan Shale ([Formula: see text] ranges from 1.25% to 1.28%), geochemical characterization of core samples of different lithologies, scanning electron microscope observations, low-pressure [Formula: see text] and [Formula: see text] adsorption, and helium pycnometry were conducted. The content and saturation of the EOM in the pores were quantitatively characterized. The results show that the distribution of the EOM in the shale interval is heterogeneous. In general, the shale layers have a higher EOM content and saturation than siltstone layers. The total organic content and the original storage capacity control the EOM content in the shale layers. For the siltstone layers, the EOM content is mainly determined by the original storage capacity. On average, 75% of the EOM occurs in the mesopores, followed by 14% in the macropores, and 11% in the micropores. The EOM saturation in the pores decreases with the increase in pore diameter. The distribution of EOM in the shale pores is closely related to the pore type. Micropores and mesopores developed in the kerogens and pyrobitumens and the clay-mineral pores coated with organic matter are most favorable for EOM retention and charging.

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The effect of the bulk density and the decomposition index of organic matter on the water storage capacity of the surface layers of forest soils

Geoderma ◽

10.1016/j.geoderma.2016.09.025 ◽

2017 ◽

Vol 285 ◽

pp. 27-34 ◽

Cited By ~ 7

Author(s):

Anna Ilek ◽

Jarosław Kucza ◽

Małgorzata Szostek

Keyword(s):

Organic Matter ◽

Bulk Density ◽

Forest Soils ◽

Storage Capacity ◽

Water Storage ◽

Surface Layers ◽

Water Storage Capacity

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An evaluation of the phosphorus storage capacity of an anaerobic/aerobic sequential batch biofilm reactor

Bioresource Technology ◽

10.1016/j.biortech.2007.08.038 ◽

2008 ◽

Vol 99 (10) ◽

pp. 4408-4413 ◽

Cited By ~ 26

Author(s):

Ren-Jie Chiou ◽

Yi-Rong Yang

Keyword(s):

Storage Capacity ◽

Biofilm Reactor ◽

Phosphorus Storage

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Enhancement of phosphorus storage capacity of sediments by coastal wetland restoration, Yellow River Delta, China

Marine Pollution Bulletin ◽

10.1016/j.marpolbul.2019.110666 ◽

2020 ◽

Vol 150 ◽

pp. 110666 ◽

Cited By ~ 2

Author(s):

Gang Xu ◽

Jiawei Song ◽

Yang Zhang ◽

Yingchun Lv ◽

Guangxuan Han

Keyword(s):

Wetland Restoration ◽

Coastal Wetland ◽

Storage Capacity ◽

Yellow River ◽

Yellow River Delta ◽

River Delta ◽

Phosphorus Storage

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Fractal Characteristics of Pores in the Longtan Shales of Guizhou, Southwest China

Geofluids ◽

10.1155/2020/8834758 ◽

2020 ◽

Vol 2020 ◽

pp. 1-16

Author(s):

Yuqi Huang ◽

Peng Zhang ◽

Jinchuan Zhang ◽

Xuan Tang ◽

Chengwei Liu ◽

...

Keyword(s):

Organic Matter ◽

Fractal Dimension ◽

Pore Structure ◽

Shale Gas ◽

Storage Capacity ◽

Evaluation Criteria ◽

Fractal Dimensions ◽

Gas Absorption ◽

Relative Pressure ◽

And Storage

The pore structure of marine-continental transitional shales from the Longtan Formation in Guizhou, China, was investigated using fractal dimensions calculated by the FHH (Frenkel-Halsey-Hill) model based on low-temperature N2 adsorption data. Results show that the overall D 1 (fractal dimension under low relative pressure, P / P 0 ≤ 0.5 ) and D 2 (fractal dimension under high relative pressure, P / P 0 > 0.5 ) values of Longtan shales were relatively large, with average values of 2.7426 and 2.7838, respectively, indicating a strong adsorption and storage capacity and complex pore structure. The correlation analysis of fractal dimensions with specific surface area, average pore size, and maximum gas absorption volume indicates that D 1 can comprehensively characterize the adsorption and storage capacity of shales, while D 2 can effectively characterize the pore structure complexity. Further correlation among pore fractal dimension, shale organic geochemical parameters, and mineral composition parameters shows that there is a significant positive correlation between fractal dimensions and organic matter abundance as well as a complex correlation between fractal dimension and organic matter maturity. Fractal dimensions increase with an increase in clay mineral content and pyrite content but decrease with an increase in quartz content. Considering the actual geological evaluation and shale gas exploitation characteristics, a lower limit for D 1 and upper limit for D 2 should be set as evaluation criteria for favorable reservoirs. Combined with the shale gas-bearing property test results of Longtan shales in Guizhou, the favorable reservoir evaluation criteria are set as D 1 ≥ 2.60 and D 2 ≤ 2.85 . When D 1 is less than 2.60, the storage capacity of the shales is insufficient. When D 2 is greater than 2.85, the shale pore structure is too complicated, resulting in poor permeability and difficult exploitation.

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Available Moisture Storage Capacity in Relation to Textural Composition and Organic Matter Content of Several Missouri Soils

Soil Science Society of America Journal ◽

10.2136/sssaj1958.03615995002200030001x ◽

1958 ◽

Vol 22 (3) ◽

pp. 189-192 ◽

Cited By ~ 62

Author(s):

V. C. Jamison ◽

E. M. Kroth

Keyword(s):

Organic Matter ◽

Storage Capacity ◽

Organic Matter Content ◽

Matter Content ◽

Moisture Storage

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Intra-population strain variation in phosphorus storage strategies of the freshwater cyanobacterium Raphidiopsis raciborskii

FEMS Microbiology Ecology ◽

10.1093/femsec/fiaa092 ◽

2020 ◽

Vol 96 (6) ◽

Cited By ~ 1

Author(s):

Man Xiao ◽

David P Hamilton ◽

Ann Chuang ◽

Michele A Burford

Keyword(s):

Growth Rates ◽

Storage Capacity ◽

Inorganic Nitrogen ◽

Inorganic Phosphorus ◽

Strain Variation ◽

Short Term ◽

And Storage ◽

P Addition ◽

Phosphorus Storage ◽

Process Based Models

ABSTRACT Several cyanobacteria, including diazotrophic Raphidiopsis raciborskii, can form harmful blooms when dissolved inorganic phosphorus concentrations are very low. We hypothesized that R. raciborskii strains would vary in phosphorus (P) allocations to cell growth and storage, providing resilience of populations to continuously low or variable P supplies. We tested this hypothesis using six toxic strains (producing cylindrospermopsins) isolated from a field population using batch monocultures with and without P and dissolved inorganic nitrogen (DIN). Treatments replete with DIN, irrespective of P addition, had similar exponential growth rates for individual strains. P storage capacity varied 4-fold among strains and was significantly higher in DIN-free treatments than in replete treatments. P was stored by all R. raciborskii strains, in preference to allocation to increase growth rates. P stores decreased with increased growth rate across strains, but weeere not related to the time to P starvation in P-free treatments. The storage capacity of R. raciborskii, combined with strategies to efficiently uptake P, means that P controls may not control R. raciborskii populations in the short term. Intra-population strain variation in P storage capacity will need to be reflected in process-based models to predict blooms of R. raciborskii and other cyanobacteria adapted to low-P conditions.

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