Spatial heterogeneity of soil moisture, microbial biomass carbon and soil respiration at stand scale of an arid scrubland

2013 ◽  
Vol 70 (7) ◽  
pp. 3217-3224 ◽  
Author(s):  
Yu-gang Wang ◽  
Hong Zhu ◽  
Yan Li
Keyword(s):  
Soil Moisture ◽  
Microbial Biomass ◽  
Soil Respiration ◽  
Spatial Heterogeneity ◽  
Microbial Biomass Carbon ◽  
Biomass Carbon

Spatial heterogeneity of soil microbial biomass carbon, nitrogen, and phosphorus in sloping field in a groge Karst region, Southwest China

2014 ◽  
Vol 34 (12) ◽  
Author(s):  
范夫静 FAN Fujing ◽  
黄国勤 HUANG Guoqin ◽  
宋同清 SONG Tongqing ◽  
曾馥平 ZENG Fuping ◽  
彭晚霞 PENG Wanxia ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Spatial Heterogeneity ◽  
Soil Microbial Biomass ◽  
Southwest China ◽  
Microbial Biomass Carbon ◽  
Karst Region ◽  
Biomass Carbon ◽  
Nitrogen And Phosphorus ◽  
Soil Microbial ◽  
Sloping Field

Influence of Plastic Mulching on Soil Moisture, Nutrient and Microbial Biomass in Pineapple Cultivation on Undulating Hilly Areas of Nagaland

Agropedology ◽  
2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Christy Sangma ◽  
◽  
A. Thirugnanavel ◽  
Ph. Romen Sharma ◽  
G. Rajesha ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Microbial Biomass ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Moisture Content ◽  
Microbial Biomass Carbon ◽  
Fertility Level ◽  
Biomass Carbon ◽  
Available N ◽  
Plastic Mulching

The pineapple var. Kew was planted on black polythene film mulching with double hedgerow planting to find out the influence of mulches on soil and plant. The soil samples were collected twice (kharif and rabi) at two different depths (0-15 and 15-30 cm), and the pH, soil organic carbon (SOC), nitrogen, phosphorus, potassium, basal respiration and soil microbial biomass carbon were analysed. The data revealed that soil organic carbon and available N, P, and K content were slightly higher in the bottom hill than the top hill. The mulched field had higher nutrients than the non-mulched field. The fertility level varied slightly between the seasons. The biological parameters (microbial biomass carbon) were observed to be significantly higher (P≤0.05) in the bottom hill in both the seasons than the non-mulched field. The soil moisture content ranged from 5.9 % in March to 24.24 % August in the bottom hill (15-30 cm depth). The moisture content in the non-mulched field was lower than the mulched field.

Date palm waste biochars alter a soil respiration, microbial biomass carbon, and heavy metal mobility in contaminated mined soil

2017 ◽  
Vol 41 (4) ◽  
pp. 1705-1722 ◽  
Author(s):  
Mohammad I. Al-Wabel ◽  
Adel Rabie A. Usman ◽  
Abdullah S. Al-Farraj ◽  
Yong Sik Ok ◽  
Adel Abduljabbar ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Microbial Biomass ◽  
Soil Respiration ◽  
Date Palm ◽  
Microbial Biomass Carbon ◽  
Metal Mobility ◽  
Biomass Carbon ◽  
Heavy Metal Mobility ◽  
Date Palm Waste ◽  
Palm Waste

scholarly journals Comparative analysis of certain soil microbiological characteristics of the carbon cycle

2016 ◽  
pp. 137-141
Author(s):  
Bence Mátyás ◽  
Judit Horváth ◽  
János Kátai
Keyword(s):  
Microbial Biomass ◽  
Soil Respiration ◽  
Carbon Cycle ◽  
Microbial Biomass Carbon ◽  
Co2 Production ◽  
Biomass Carbon ◽  
Soil Microbial ◽  
Microbiological Characteristics ◽  
Long Term Experiment

In our researches, we examine the soil microbial parameters related to the carbon cycle. In this study, we compare the changes of microbial biomass carbon (MBC) and the soil CO2 production in soil samples which were taken in spring and autumn. The 30 years old long-term experiment of Debrecen-Látókép is continued in our experiments. The long-term fertilization experiment was set in 1983, and our sample was taken in spring 2014. The examinations of soil respiration processes and factors that influence soil respiration are required in optimal management. In our study, we interested to know how the growing levels of fertilization influence the soil respiration and microbial biomass carbon under non-irrigated and irrigated conditions in maize mono, bi, and triculture.

scholarly journals Biochar and wheat straw affecting soil chemistry and microbial biomass carbon countrywide

2021 ◽  
Author(s):  
Younes Shokuhifar ◽  
Ahmad Mohammadi Ghahsareh ◽  
Karim Shahbazi ◽  
Mohammad Mehdi Tehrani ◽  
Hossein Besharati
Keyword(s):  
Organic Matter ◽  
Soil Moisture ◽  
Microbial Biomass ◽  
Wheat Straw ◽  
Microbial Biomass Carbon ◽  
Biological Properties ◽  
Soil Samples ◽  
Agricultural Fields ◽  
Biomass Carbon ◽  
Wide Range

AbstractIndicating how different sources of organic matter (OM) may affect the properties of a wide range of soil types, at varying soil moisture (SM), is of significance in the agricultural fields. A large dataset of soil samples (0–30 cm) was collected from different parts of Iran (21 different agricultural regions, with a wide range of physical, chemical, and biological properties) to determine the effects of OM and varying SM on soil chemical (pH, salinity, and organic carbon) and biological (microbial biomass carbon, MBC) properties. The collected soil samples were incubated (9-month period) with the experimental treatments including OM (control (M1), 2% wheat straw (WS) (M2), and 2% biochar (BI) (M3)), at different SM levels (0.2 field capacity, FC (V1), 0.7 variable FC (V2), 0.7 constant FC (V3), and saturated moisture (V4)). Wheat straw was pyrolyzed (at 500°C) to produce BI, and their chemical properties were determined. BI salinity (3.1 dS/m) was significantly higher than WS (2.8 dS/m). The organic treatments, especially BI, significantly increased soil OM and MBC compared with the control treatment. The two sources of organic fertilization increased soil pH, OM, and MBC, though such effects were functions of varying soil moisture (drying and rewetting cycles). Due to higher C percentage (61%), the effects of BI, significantly affected by soil moisture, were more pronounced on soil parameters. The tested sources of organic matter (WS and BI), acting as functions of soil moisture, can strongly affect soil chemical and biological properties and contribute to higher efficiency of agricultural fields.

Spatial heterogeneity of soil microbial biomass carbon, nitrogen, and phosphorus in sloping farmland in a karst region on the Yunnan-Guizhou Plateau

2012 ◽  
Vol 32 (7) ◽  
pp. 2056-2065
Author(s):  
张利青 ZHANG Liqing ◽  
彭晚霞 PENG Wanxia ◽  
宋同清 SONG Tongqing ◽  
邹冬生 ZOU Dongsheng ◽  
曾馥平 ZENG Fuping ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Spatial Heterogeneity ◽  
Soil Microbial Biomass ◽  
Microbial Biomass Carbon ◽  
Karst Region ◽  
Biomass Carbon ◽  
Nitrogen And Phosphorus ◽  
Soil Microbial ◽  
Sloping Farmland ◽  
Guizhou Plateau

scholarly journals Correction to: Date palm waste biochars alter a soil respiration, microbial biomass carbon, and heavy metal mobility in contaminated mined soil

2017 ◽  
Vol 41 (4) ◽  
pp. 1809-1809 ◽  
Author(s):  
Mohammad I. Al-Wabel ◽  
Adel Rabie A. Usman ◽  
Abdullah S. Al-Farraj ◽  
Yong Sik Ok ◽  
Adel Abduljabbar ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Microbial Biomass ◽  
Soil Respiration ◽  
Date Palm ◽  
Microbial Biomass Carbon ◽  
Metal Mobility ◽  
Biomass Carbon ◽  
Heavy Metal Mobility ◽  
Date Palm Waste ◽  
Palm Waste

scholarly journals Seasonality and moisture regime control soil respiration, enzyme activities, and soil microbial biomass carbon in a semi-arid forest of Delhi, India

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Urvashi Tomar ◽  
Ratul Baishya
Keyword(s):  
Microbial Biomass ◽  
Soil Respiration ◽  
Carbon Cycling ◽  
Significant Role ◽  
Soil Enzymes ◽  
Microbial Biomass Carbon ◽  
Phenol Oxidase ◽  
Peak Time ◽  
Biomass Carbon ◽  
Semi Arid

Abstract Soil respiration, soil enzymes, and microbial biomass are important in carbon cycling in the terrestrial ecosystem which is generally limited by environmental factors and soil carbon availability. Hence, we tried to assess the factors affecting the functional aspects of these processes in a semi-arid climate. We monitored soil respiration (surface) using a portable infrared gas analyzer (Q-Box SR1LP Soil Respiration Package, Qubit Systems, Canada) equipped with a soil respiration chamber (Model: G 180). Soil respiration was measured at midday during each season throughout the study period. Soil enzymatic activities and microbial biomass carbon (MBC) were analyzed following the standard protocol for a year during peak time in four seasons at 0–10 cm and 10–20 cm depth. Soil respiration shows significant variation with highest in monsoon (3.31 μmol CO2 m−2 s−1) and lowest in winter (0.57 μmol CO2 m−2 s−1). Similarly, β-glucosidase, dehydrogenase, and phenol oxidase activity ranged from 11.15 to 212.59 μg PNP g−1 DW h−1, 0.11 to 16.47 μg TPF g−1 DW h−1, and 4102.95 to 10187.55 μmol ABTS+ g−1 DW min−1, respectively. MBC ranged from 17.08 to 484.5 μg C g−1. Besides, soil respiration, soil enzymes (except β-glucosidase), and MBC were significantly correlated with soil moisture. Seasonality, optimum moisture and temperature played a significant role in determining variations in soil microbiological processes (except β-glucosidase activity); the carbon cycling in the study area is assisted by enzyme activity; dehydrogenase and phenol oxidase played a significant role in soil respiration; hence, this landscape is sensitive to environmental changes.

scholarly journals The Potential of Biochar Made from Agricultural Residues to Increase Soil Fertility and Microbial Activity: Impacts on Soils with Varying Sand Content

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1174
Author(s):  
Martin Brtnicky ◽  
Tereza Hammerschmiedt ◽  
Jakub Elbl ◽  
Antonin Kintl ◽  
Lucia Skulcova ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Soil Respiration ◽  
Soil Fertility ◽  
Microbial Activity ◽  
Plant Biomass ◽  
Microbial Biomass Carbon ◽  
Metabolic Quotient ◽  
Biomass Carbon ◽  
Carbon And Nitrogen ◽  
Biochar Amendment

Different types of soil respond variably to biochar amendment. Soil structure and fertility are properties which strongly affect the impacts of biochar on soil fertility and microbial activity. A pot experiment with lettuce was conducted to verify whether biochar amendment is more beneficial in sandy soil than in clay soil. The nutrient content (carbon and nitrogen), microbial biomass carbon, soil respiration, metabolic quotient, and plant biomass yield were determined. The treatments were prepared by mixing silty clay loam (Haplic Luvisol) with a quartz sand in ratios of 0%, 20%, 40%, 60%, 80%, and 100% of sand; the same six treatments were prepared and amended with biochar (12 treatments in total). Soil carbon and nitrogen, microbial biomass carbon, and soil respiration were indirectly dependent on the descending sand ratio, whereas the metabolic quotient increased with the ascending sand ratio. The biochar’s effects were positive for total carbon, microbial biomass carbon, metabolic quotient, and plant biomass in the sand-rich treatments. The maximum biochar-derived benefit in crop yield was found in the 100% sand + biochar treatment, which exhibited 24-fold (AGB) and 11-fold (root biomass) increases compared to the unamended treatment. The biochar application on coarse soil types with lower fertility was proven to be favorable.

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