Role of soil organic matter in stabilization of water-stable aggregates in Soils under different types of land use

The role of soil organic matter (OM) on SO4 retention was investigated by comparing OM content, SO4 retention, and the distribution of Fe, Al and Si compounds in OM-poor (Grands-Jardins, PGJ) and OM-rich (Hermine, HER) Podzols from Québec, Canada. At both sites, four pedons were sampled by horizon; soil pH in H2O, organic C, phosphate-extractable SO4 and, sodium pyrophosphate, acid ammonium oxalate and dithionite-citrate-bicarbonate (DCB) extractable Fe, Al and Si were measured for each mineral horizon. The mineralogy of the clay (<2 µm) and fine silt (2–20 µm) fractions of selected horizons was determined by X-ray diffraction (XRD) and infrared spectroscopy (IR). Weighted mean organic C and pyrophosphate extractable Fe and Al contents were significantly higher in the HER than in the PGJ sola, while the PGJ soils were richer in amorphous inorganic Al. No trends were observed for inorganic Fe compounds. Chemical dissolution and IR allowed the identification of short-range ordered aluminosilicates, probably allophane, in the OM-poor and slightly acidic to neutral PGJ soils. These materials were absent from the OM-rich and acidic HER soils. Phosphate extractions showed that the weighted mean native SO4 content was five times higher in the PGJ than in the HER soil. Finally, native SO4 was strongly related to inorganic Fe, Al and Si (associated with allophane) at PGJ but only to inorganic Fe at HER. These results indicate that OM indirectly affects SO4 sorption through the influence organic substances exerts on the nature and distribution of pedogenic Fe, Al and Si compounds, such as allophane, in Podzolic profiles. Key words: Organic matter, sulfate, imogolite, allophane, silica, Podzol

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Accumulation patterns of soil organic matter in forests as a legacy of historical charcoal burning

10.5194/egusphere-egu21-5161 ◽

2021 ◽

Author(s):

Anna Schneider ◽

Alexander Bonhage ◽

Florian Hirsch ◽

Alexandra Raab ◽

Thomas Raab

Keyword(s):

Land Use ◽

Organic Matter ◽

Soil Organic Matter ◽

Large Scale ◽

Soil Surface ◽

Landscape Scale ◽

Legacy Effects ◽

Charcoal Production ◽

Study Region ◽

Land Use Legacies

Human land use and occupation often lead to a high heterogeneity of soil stratigraphy and properties in landscapes within small, clearly delimited areas. Legacy effects of past land use also are also abundant in recent forest areas. Although such land use legacies can occur on considerable fractions of the soil surface, they are hardly considered in soil mapping and inventories. The heterogenous spatial distribution of land use legacy soils challenges the quantification of their impacts on the landscape scale. Relict charcoal hearths (RCH) are a widespread example for the long-lasting effect of historical land use on soil landscapes in forests of many European countries and also northeastern USA. Soils on RCH clearly differ from surrounding forest soils in their stratigraphy and properties, and are most prominently characterized by a technogenic substrate layer with high contents of charcoal. The properties of RCH soils have recently been studied for several regions, but their relevance on the landscape scale has hardly been quantified.We analyse and discuss the distribution and ecological relevance of land use legacy soils across scales for RCH in the state of Brandenburg, Germany, with a focus on soil organic matter (SOM) stocks. Our analysis is based on a large-scale mapping of RCH from digital elevation models (DEM), combined with modelled SOM stocks in RCH soils.&#160;The distribution of RCH soils in the study region shows heterogeneity at different scales. The large-scale variation is related to the concentration of charcoal production to specific forest areas and the small-scale accumulation pattern is related to the irregular distribution of single RCH within the charcoal production fields. Considerable fractions of the surface area are covered by RCH soils in the major charcoal production areas within the study region. The results also show that RCH can significantly contribute to the soil organic matter stocks of forests, even for areas where they cover only a small fraction of the soil surface. The study highlights that considering land use legacy effects can be relevant for the results of soil mapping and inventories; and that prospecting and mapping land use legacies from DEM can contribute to improving such approaches.

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Characterization of atrazine binding to dissolved organic matter of soil under different types of land use

Ecotoxicology and Environmental Safety ◽

10.1016/j.ecoenv.2016.11.008 ◽

2018 ◽

Vol 147 ◽

pp. 1065-1072 ◽

Cited By ~ 20

Author(s):

Long-Ji Zhu ◽

Yue Zhao ◽

Yan-Ni Chen ◽

Hong-Yang Cui ◽

Yu-Quan Wei ◽

...

Keyword(s):

Land Use ◽

Organic Matter ◽

Dissolved Organic Matter ◽

Different Types

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Land Use and Soil Management Effects on Soil Organic Matter Dynamics on Alfisols In Western Nigeria

Soil Processes and the Carbon Cycle ◽

10.1201/9780203739273-9 ◽

2018 ◽

pp. 109-126 ◽

Cited By ~ 5

Author(s):

R. Lal

Keyword(s):

Land Use ◽

Organic Matter ◽

Soil Organic Matter ◽

Soil Management ◽

Soil Organic Matter Dynamics ◽

Organic Matter Dynamics ◽

Management Effects

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Effects of changing land use in the Netherlands on net carbon fixation.

Netherlands Journal of Agricultural Science ◽

10.18174/njas.v39i4.16534 ◽

1991 ◽

Vol 39 (4) ◽

pp. 237-246 ◽

Cited By ~ 3

Author(s):

J. Wolf ◽

L.H.J.M. Janssen

Keyword(s):

Land Use ◽

Organic Matter ◽

Soil Organic Matter ◽

The Netherlands ◽

Input Data ◽

Carbon Fixation ◽

Arable Land ◽

Rate Of Change ◽

Pool Size ◽

Average Amount

The changed crop rotation on arable land, the decreasing grassland area and the increase in forest area in the Netherlands resulted in a decrease in C pool size. For the calculation of this C pool a method requiring only three input data (average amount of crop or tree residue rate, soil organic matter decomposition and the humification coefficient) has been applied. However the method can only be applied to situations in equilibrium where all three input data are equal. For a changing land use a new state of equilibrium and rate of change in C pool size can be calculated. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico

Chilean journal of agricultural research ◽

10.4067/s0718-58392011000200014 ◽

2011 ◽

Vol 71 (2) ◽

pp. 283-292 ◽

Cited By ~ 2

Author(s):

Francisco Matus ◽

Claudia Hidalgo ◽

Carlos Monreal ◽

Isabel Estrada ◽

Mariela Fuentes ◽

...

Keyword(s):

Land Use ◽

Organic Matter ◽

Soil Organic Matter ◽

Land Use Impacts ◽

Soil Organic Matter Fractions ◽

Organic Matter Fractions

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Organik Matter: It’s Role in Sustainable Farming of Sugarcane

Perspektif ◽

10.21082/p.v14n1.2015.61-71 ◽

2016 ◽

Vol 14 (1) ◽

pp. 61

Author(s):

Djajadi Djajadi

Keyword(s):

Organic Matter ◽

Soil Organic Matter ◽

Soil Fertility ◽

Green Manure ◽

Organic Fertilizer ◽

Soil Health ◽

High Yield ◽

Cane Yield ◽

Sustainable Farming

ABSTRACTOrganik matter has an important role in determining soil health of sugarcane, i.e. soil capacity to support sugarcane to produce sustainable high yield. Soil organic matter influences soil physical, chemical, and biological properties, so that a consequence of declining soil organic matter is poorer soil fertility and lower yield. This paper has an objective to elucidate the important role of organic matter on sustainable farming of sugarcane. The important role of organic matter in soil fertility has been known for a long time before Green Revolution concept was introduced. With more intensity in sugarcane farming and more increasing of sugar demand, application of organic fertilizer started to be substituted by chemical fertilizer. Using green manure and/or biofertilizer has a chance to be spread out to the farmers due to more practical and more efficient than solid organik fertilizer, such as dung manure or compost. Future research should be focusing on the efectivity of green manure and or biofertilzer sources in improving soil fertility and cane yield, minimizing soil pathogen, reducing soil erosion of sugar cane land monoculture, and improving awareness of farmers about soil degradation as consequences of sugarcane monoculture planting for years.Keywords: Organic matter, sugarcane, soil health sustainable farming Bahan Organik: Peranannya dalam Budidaya Tebu BerkelanjutanABSTRAKBahan organik tanah berperan penting dalam menentukan kesehatan tanah tebu, yaitu kapasitas tanah yang dapat mendukung produksi tebu yang tinggi secara berkelanjutan. Kadar bahan organik tanah mempengaruhi sifat fisik, kimia dan biologi tanah. Paper ini bertujuan untuk menguraikan tentang peranan bahan organik dalam memperbaiki sifat fisik, kimia dan biologi tanah pertanaman tebu. Pentingnya peran bahan oganik tersebut sudah disadari dari dulu, sehingga sebelum revolusi hijau penggunaan pupuk organik sudah umum dilakukan petani. Dengan semakin intensifnya budidaya tebu dan semakin meningkatnya kebutuhan gula, pemanfaatan pupuk organik sudah jarang dilakukan. Diperlukan usaha untuk meningkatkan dan mempertahankan kadar bahan organik pada lahan tebu, antara lain berupa gerakan masal dalam bentuk gerakan nasional melalui program aplikasi bahan organik. Pemanfaatan pupuk hijau dan/atau pupuk hayati berpeluang untuk diterapkan karena lebih praktis dan efisien daripada penambahan pupuk organik padat. Penelitian ke depan perlu difokuskan untuk mengkaji jenis-jenis pupuk organik dan pupuk hayati yang efektif memperbaiki kesuburan, dalam menekan serangan penyakit, meminimalkan erosi pada lahan-lahan tebu monokultur, dan meningkatkan kesadaran petani tebu tentang terjadinya degradasi lahan akibat penanaman tebu yang terus menerus.Kata kunci: Bahan organik, tebu, kesehatan tanah, budidaya berkelanjutan

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