Soil engineering ants increase CO2 and N2O emissions by affecting mound soil physicochemical characteristics from a marsh soil: A laboratory study

Species composition, phytosociological status and soil characteristics of Siwalik forest occurring around Raja-Rani wetland, Letang municipality, eastern Nepal was studied. A total of 47 tree species belonging to 40 genera and 26 families were reported. Dominant and co-dominant trees were Shorea robusta (IVI=133.4) and Schima wallichii (IVI=70.6), respectively. In the forest total tree density, basal cover area, seedling density, fallen dead density and dead standing density were 378.4 trees ha-1, 163.7 m2 ha-1, 105250 individual ha-1, 4 trees ha-1 and 1.6 trees ha-1, respectively. Irregular girth class distribution and high stump density (136.8 tree ha-1) denote disturbance. Soil physicochemical characteristics were: acidic soil (pH 4.8), moisture (12.5%), water holding capacity (50.05%), bulk density (1.17 g cm-3), porosity (0.55%), humus (8.6%), organic carbon (0.52%), nitrogen (0.1%), phosphorus (33 kg ha-1), and potassium (300 kg ha-1). Regulating human encroachment to ensure natural regeneration of species to maintain the viability of the Letang Raja-Rani wetland site and integrity of the local ecosystem is strongly recommended.

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Correction to: Effects of organic amendment on some soil physicochemical characteristics and vegetative properties of Zea mays in wetland soils of the Niger Delta impacted with crude oil

International Journal Of Recycling of Organic Waste in Agriculture ◽

10.1007/s40093-019-00318-3 ◽

2019 ◽

Vol 8 (S1) ◽

pp. 437-437

Author(s):

Francis E. Egobueze ◽

Josiah M. Ayotamuno ◽

Chukwujindu M. A. Iwegbue ◽

Chibogwu Eze ◽

Reuben N. Okparanma

Keyword(s):

Zea Mays ◽

Crude Oil ◽

Niger Delta ◽

Organic Amendment ◽

Physicochemical Characteristics ◽

Wetland Soils ◽

Original Publication ◽

Soil Physicochemical Characteristics

In the original publication of the article, the author’s name Reuben N. Okparanma was misspelled.

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A preliminary spatial-temporal study of some soil characteristics in the calcareous massif of Sicó, Portugal

Geospatial health ◽

10.4081/gh.2016.342 ◽

2016 ◽

Vol 11 (1) ◽

Author(s):

Maria Odete Torres ◽

Maria Manuela Neves

Keyword(s):

Spatial Analysis ◽

Soil Management ◽

Physicochemical Characteristics ◽

Soil Characteristics ◽

Design Experiment ◽

First Year ◽

Erosion Processes ◽

Temporal Study ◽

Phosphorus Fertiliser ◽

Soil Physicochemical Characteristics

The mountainous massif of Sicó, in the centre of Portugal, is anextensive area composed of calcareous Jurassic formations. Hillsidecalcareous soils, with high pH, present chemical restrictions to supportplant growth and are subjected to important erosion processes leading to their degradation if not protected by vegetation. In a first year of study some soil physicochemical characteristics have been measured in some geo-referenced locations of a larger design experiment and an exploratory spatial analysis has been performed. The objective of this study was to present some suggestions in order to give sustainable phosphorus fertiliser recommendations aiming to establish pastures in these soils and thus support traditional livestock activity. Ten years apart, those soil characteristics have been measured again in the same locations and comparisions have been made. The objective was to understand the variability of the soil properties under study in order to better adequate the fertiliser soil management regarding the area restoration.

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