scholarly journals A Biodegradable Ramie Fiber-Based Nonwoven Film Used for Increasing Oxygen Supply to Cultivated Soil

2018 ◽  
Vol 8 (10) ◽  
pp. 1813 ◽  
Author(s):  
Wanlai Zhou ◽  
Yanbin Niu ◽  
Chaoyun Wang ◽  
Yuanru Yang ◽  
Zhijian Tan ◽  
...  
Keyword(s):  
Oxygen Supply ◽  
Close Contact ◽  
Bottom Surface ◽  
Ramie Fiber ◽  
Prepared Film ◽  
Short Term ◽  
Soil Microbial ◽  
Plant Cultivation ◽  
Cultivated Soil ◽  
Ecological Problems

Plastic agricultural nonwoven films are traditionally used as covering materials, and are prone to cause various ecological problems due to their poor biodegradability. In this paper, a ramie fiber/starch nonwoven film was prepared, and was used as bedding material, that was covered by cultivated soil as opposed to covering it. The biodegradability and porosity characteristics of the film were analyzed, and its effect on oxygen supply to soil was investigated. Results showed that the prepared film had good biodegradability (65.6% after 72 days), and had a loose and porous structure, with the main pore size being in the range of 250–300 μm. After the soil moisture content was reduced to about 44%, the oxygen concentration in the soil that was in close contact with the film, which padded the bottom surface of the plate, rose sharply and then kept stable at 20.1%, whereas soil directly in contact with the plate remained extremely anoxic (0.2%). It was concluded that use of the prepared film increased the oxygen supply to the soil in contact with it, which sufficiently compensated for the oxygen consumption caused by soil microbial activities. Thus, the prepared film is very suitable in short-term plant cultivation within containers where anoxia often occurs.

scholarly journals Effects of Short-Term Rice Straw Return on the Soil Microbial Community

Agriculture ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 561
Author(s):  
Enze Wang ◽  
Xiaolong Lin ◽  
Lei Tian ◽  
Xinguang Wang ◽  
Li Ji ◽  
...  
Keyword(s):  
Microbial Community ◽  
Rice Straw ◽  
Paddy Soil ◽  
Soil Microbial Community ◽  
Short Term ◽  
Soil Microbial ◽  
Microbial Network ◽  
Straw Return ◽  
Bacteria And Fungi ◽  
Main Factor

Rice straw is a byproduct of agricultural production and an important agricultural resource. However, rice straw has not yet been effectively used, and incorrect treatment methods (such as burning in the field) can cause serious damage to the environment. Studies have shown that straw returning is beneficial to soil, but there have been few studies focused on the effect of the amount of short-term straw returned on the soil microbial community. This study evaluates 0%, 50%, 75%, and 100% rice straw returned to the field on whether returning different amounts of straw in the short term would affect the diversity and composition of the soil microbial community and the correlation between bacteria and fungi. The results show that the amount of straw returned to the field is the main factor that triggers the changes in the abundance and composition of the microbial community in the paddy soil. A small amount of added straw (≤ 50% straw added) mainly affects the composition of the bacterial community, while a larger amount of added straw (> 50% straw added) mainly affects the composition of the fungal community. Returning a large amount of straw increases the microbial abundance related to carbon and iron cycles in the paddy soil, thus promoting the carbon and iron cycle processes to a certain extent. In addition, network analysis shows that returning a large amount of straw also increases the complexity of the microbial network, which may encourage more microbes to be niche-sharing and comprehensively improve the ecological environment of paddy soil. This study may provide some useful guidance for rice straw returning in northeast China.

scholarly journals The Influence of Selected Meteorological Factors on Microbial Biomass and Mineralization of Two Organic Fertilizers

2011 ◽  
Vol 39 (1) ◽  
pp. 107
Author(s):  
Mignon S. SANDOR ◽  
Traian BRAD ◽  
Aurel MAXIM ◽  
Constantin TOADER
Keyword(s):  
Biological Activity ◽  
Microbial Biomass ◽  
Soil Ph ◽  
Soil Microbial Biomass ◽  
Organic Fertilizers ◽  
Barley Straw ◽  
Short Term ◽  
Soil Microbial ◽  
Fertilized Soil ◽  
Mineralization Processes

A mesocosm study was conducted in order to evaluate the effects of short-term rainfall and temperature variation on soil microbial biomass and bacteria to fungi ratio. In addition, the relation between the decomposition process of two organic fertilizers, cattle manure and barley straw, and the activity of soil microbial biomass was also studied. In order to assess the effect of biological activity on soil fertility the dynamics of soil pH, N-NO3-, N-NH4+, Corg and Nt during plant growing season was measured. The results suggest that short-term variation of climate had a significant effect on microbial biomass with dry periods distinguished by a reduced microbial biomass compared to wet periods. The ratio bacteria to fungi seems also to be sensitive to variations in rainfall and temperature regime, however further studies are required to draw a definitive conclusion. Regarding the type of fertilizer used, the straw treatments showed higher microbial biomass than the manure treatments, but higher decomposition rate was observed in manure fertilized soil. The effect of soil biological activity on soil pH was limited for both manure and straw treatments while the changes of the soil nitrate amounts are related to the microbial biomass. The study indicates that nitrate immobilization and mineralization processes are influenced by meteorological conditions and microbial biomass dynamics. In contrast, soil organic carbon and total nitrogen did not seem to be affected by variations in temperature, rainfall and microbial activity.

Short-term exclusion of degraded pasture in the permafrost zone: aspects of soil microbial community

2017 ◽  
Vol 7 (3) ◽  
pp. 184-190
Author(s):  
A. A. Danilova ◽  
G. N. Savvinov ◽  
L. D. Gavril’eva ◽  
P. P. Danilov ◽  
M. I. Ksenofontova ◽  
...  
Keyword(s):  
Microbial Community ◽  
Soil Microbial Community ◽  
Permafrost Zone ◽  
Short Term ◽  
Soil Microbial ◽  
Degraded Pasture

Short-Term Effects of Human Trampling on Vegetation and Soil Microbial Activity

2004 ◽  
Vol 35 (11-12) ◽  
pp. 1591-1603 ◽  
Author(s):  
M. Ros ◽  
C. Garcia ◽  
T. Hernandez ◽  
M. Andres ◽  
A. Barja
Keyword(s):  
Microbial Activity ◽  
Soil Microbial Activity ◽  
Short Term ◽  
Soil Microbial ◽  
Human Trampling ◽  
Short Term Effects

Immediate- and Short-term Wildfire Impact on Soil Microbial Diversity and Activity in a Mediterranean Forest Soil

Soil Science ◽  
2019 ◽  
Vol 184 (2) ◽  
pp. 35-42 ◽  
Author(s):  
Federica Borgogni ◽  
Anna Lavecchia ◽  
Giovanni Mastrolonardo ◽  
Giacomo Certini ◽  
Maria Teresa Ceccherini ◽  
...  
Keyword(s):  
Microbial Diversity ◽  
Forest Soil ◽  
Mediterranean Forest ◽  
Short Term ◽  
Soil Microbial Diversity ◽  
Soil Microbial

scholarly journals Short-term plant legacy alters the resistance and resilience of soil microbial communities exposed to heat disturbance in a Mediterranean calcareous soil

2020 ◽  
Vol 108 ◽  
pp. 105740 ◽  
Author(s):  
Ana Beatriz de Oliveira ◽  
Amélie A.M. Cantarel ◽  
Marie Seiller ◽  
Alessandro Florio ◽  
Annette Bérard ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Calcareous Soil ◽  
Soil Microbial Communities ◽  
Short Term ◽  
Soil Microbial

scholarly journals Modeling of Stochastic Temperature and Heat Stress Directly Underneath Agrivoltaic Conditions with Orthosiphon Stamineus Crop Cultivation

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1472
Author(s):  
Noor Fadzlinda Othman ◽  
Mohammad Effendy Yaacob ◽  
Ahmad Suhaizi Mat Su ◽  
Juju Nakasha Jaafar ◽  
Hashim Hizam ◽  
...  
Keyword(s):  
Heat Stress ◽  
Large Scale ◽  
Energy Conversion Efficiency ◽  
Bottom Surface ◽  
Solar Photovoltaic ◽  
Plant Cultivation ◽  
Farm Operators ◽  
Cooling Mechanism ◽  
Temperature Levels ◽  
Thermal Correlation

This paper presents the field measured data of the ambient temperature profile and the heat stress occurrences directly underneath ground-mounted solar photovoltaic (PV) arrays (monocrystalline-based), focusing on different temperature levels. A previous study has shown that a 1 °C increase in PV cell temperature results in a reduction of 0.5% in energy conversion efficiency; thus, the temperature factor is critical, especially to solar farm operators. The transpiration process also plays an important role in the cooling of green plants where, on average, it could dissipate a significant amount of the total solar energy absorbed by the leaves, making it a good natural cooling mechanism. It was found from this work that the PV system’s bottom surface temperature was the main source of dissipated heat, as shown in the thermal images recorded at 5-min intervals at three sampling times. A statistical analysis further showed that the thermal correlation for the transpiration process and heat stress occurrences between the PV system’s bottom surface and plant height will be an important factor for large scale plant cultivation in agrivoltaic farms.

scholarly journals Short-term effect of Eucalyptus plantations on soil microbial communities and soil-atmosphere methane and nitrous oxide exchange

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Caroline A. Cuer ◽  
Renato de A. R. Rodrigues ◽  
Fabiano C. Balieiro ◽  
Jacqueline Jesus ◽  
Elderson P. Silva ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Term Effect ◽  
Short Term ◽  
Short Term Effect ◽  
Soil Microbial ◽  
Soil Atmosphere ◽  
Eucalyptus Plantations
Sign in / Sign up

Export Citation Format

Share Document