Prolonged simulated acid rain treatment in the subarctic: Effect on the soil respiration rate and microbial biomass

1996 ◽  
Vol 23 (1) ◽  
pp. 7-14
Author(s):  
P. Vanhala ◽  
H. Fritze ◽  
S. Neuvonen
Keyword(s):  
Microbial Biomass ◽  
Soil Respiration ◽  
Acid Rain ◽  
Respiration Rate ◽  
Simulated Acid Rain ◽  
Soil Respiration Rate

scholarly journals Effects of simulated acid rain on soil respiration rate and soil bacterial diversity in aPhyllostachyspubescensforest in subtropical China

2019 ◽  
Author(s):  
Nan Wang ◽  
Xiaocheng Pan
Keyword(s):  
Soil Respiration ◽  
Acid Rain ◽  
Bacterial Diversity ◽  
Respiration Rate ◽  
Simulated Acid Rain ◽  
Subtropical China ◽  
Soil Bacterial Diversity ◽  
Soil Respiration Rate ◽  
Respiration Rates ◽  
Soil Bacterial

AbstractAcid rain has been regarded as a global environmental concern due to its negative effects on global ecosystems. In this study, we investigated the effects of simulated acid rain (SAR) on soil respiration rate and soil bacterial diversity in a Moso bamboo (phyllostachyspubescens) forest in subtropical China. Experimental results showed a similar seasonal pattern of soil respiration rates underdifferent SAR treatments. Seasonal mean soil respiration rates for CK (control, deionized water, pH 6.7), T1 (pH 5.6), T2 (pH 4.0) and T3 (pH 2.5) treatments were 3.44, 4.80, 4.35 and 4.51 μ mol m−2s−1, respectively. One-way analysis of variance indicated that the SAR exposure had no significant effect on soil respiration (p>0.1) and soil microbial biomass (p>0.1). Soil bacterial community diversity was calculated as the Shannon-Wiener diversity index and the results showed that only T3 treatment had significant effects on soil bacterial diversity. The DGGE analysis results revealed that T1 and CK soils had closer association and were related to the T2 soil, while T3 soil was distinctly different from the other treatments. This work highlights that the effects of SAR are important to consider in assessing the soil respiration rate, particularly under the scenario of increasing acid rain pollution.

Ecological responses of Stipa steppe in Inner Mongolia to experimentally increased temperature and precipitation. 3. Soil respiration

2018 ◽  
Vol 40 (2) ◽  
pp. 153 ◽  
Author(s):  
Xuexia Wang ◽  
Yali Chen ◽  
Yulong Yan ◽  
Zhiqiang Wan ◽  
Ran Chao ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Soil Respiration ◽  
Soil Temperature ◽  
Respiration Rate ◽  
Inner Mongolia ◽  
Growing Season ◽  
Climatic Warming ◽  
Soil Respiration Rate ◽  
Natural Rainfall ◽  
Temperature And Precipitation

The response of soil respiration to simulated climatic warming and increased precipitation was evaluated on the arid–semi-arid Stipa steppe of Inner Mongolia. Soil respiration rate had a single peak during the growing season, reaching a maximum in July under all treatments. Soil temperature, soil moisture and their interaction influenced the soil respiration rate. Relative to the control, warming alone reduced the soil respiration rate by 15.6 ± 7.0%, whereas increased precipitation alone increased the soil respiration rate by 52.6 ± 42.1%. The combination of warming and increased precipitation increased the soil respiration rate by 22.4 ± 11.2%. When temperature was increased, soil respiration rate was more sensitive to soil moisture than to soil temperature, although the reverse applied when precipitation was increased. Under the experimental precipitation (20% above natural rainfall) applied in the experiment, soil moisture was the primary factor limiting soil respiration, but soil temperature may become limiting under higher soil moisture levels.

scholarly journals Influence of Environmental Factors on Variation of Soil Respiration Rate in a Wheat-Maize Rotation Field in China

2016 ◽  
Vol 12 (4) ◽  
pp. 192-200
Author(s):  
Juan Wang ◽  
Jianlin Wang ◽  
Jiabin Liu ◽  
Yongchao Jiang ◽  
Jindong Xu ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Soil Respiration ◽  
Respiration Rate ◽  
Soil Respiration Rate ◽  
Rotation Field

scholarly journals Influence of liming on residual soil respiration and chemical properties in a tropical no-tillage system

2012 ◽  
Vol 36 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Adolfo Valente Marcelo ◽  
José Eduardo Corá ◽  
Newton La Scala Junior
Keyword(s):  
Soil Respiration ◽  
Respiration Rate ◽  
Co2 Emission ◽  
Chemical Properties ◽  
Base Saturation ◽  
Residual Soil ◽  
No Tillage ◽  
Soil Respiration Rate ◽  
Tillage System ◽  
And Chemical Properties

Because of the climate changes occurring across the planet, especially global warming, the different forms of agricultural soil use have attracted researchers´ attention. Changes in soil management may influence soil respiration and, consequently, C sequestration. The objectives of this study were to evaluate the long-term influence of liming on soil respiration and correlate it with soil chemical properties after two years of liming in a no-tillage system. A randomized complete block design was used with six replications. The experimental treatments consisted of four lime rates and a control treatment without lime. Two years after liming, soil CO2 emission was measured and the soil sampled (layers 0-5, 5-10, 10-20, and 20-30 cm). The P, Ca2+ e Mg2+ soil contents and pH and base saturation were determined. CO2 emission from soil limed at the recommended rate was 24.1 % higher, and at twice the recommended rate, 47.4 % higher than from unlimed soil. Liming improved the chemical properties, and the linear increase in soil respiration rate correlated positively with the P, Ca2+ and Mg2+ soil contents, pH and base saturation, and negatively with H + Al and Al3+ contents. The correlation coefficient between soil respiration rate and chemical properties was highest in the 10-20 cm layer.

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