scholarly journals Soil Respiration May Overestimate or Underestimate in Forest Ecosystems

2021 ◽  
Vol 13 (5) ◽  
pp. 2716
Author(s):  
Yuanbo Cao ◽  
Huijie Xiao ◽  
Baitian Wang ◽  
Yunlong Zhang ◽  
Honghui Wu ◽  
...  
Keyword(s):  
Soil Respiration ◽  
Respiration Rate ◽  
Forest Ecosystems ◽  
Temporal Heterogeneity ◽  
Rate Heterogeneity ◽  
Measuring Point ◽  
Soil Respiration Rate ◽  
Spatial And Temporal Heterogeneity ◽  
New Ideas ◽  
Selection Of

The inappropriate selection of measurement points and measurement times in an ecosystem may easily lead to the underestimation or overestimation of soil respiration due to spatial and temporal heterogeneity. To assess the law of spatial and temporal heterogeneity and more accurately determine the soil respiration rate, we measured the soil respiration rate of a forest in the plant growing season from 2011 to 2013 on Changbai Mountain in 8 directions and 7 distances from each tree trunk. Neglecting the direction of the measuring point may overestimate or underestimate the soil respiration rate by 29.81% and 26.09%, respectively; neglecting the distance may overestimate or underestimate the soil respiration rate by 41.36% and 20.28%, respectively; and ignoring the measurement time may overestimate and underestimate the soil respiration rate by 41.71% and 57.64%, respectively. In addition, choosing a measurement point in the eastern direction at a 1.8 m distance and conducting the measurement in September may relatively accurately reflect the soil respiration rate of the ecosystem. These findings can deepen our understanding of soil respiration rate heterogeneity and may provide new ideas for improving the measurement method of soil respiration.

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.

Effect of warming on the temperature dependence of soil respiration rate in arctic, temperate and tropical soils

2003 ◽  
Vol 22 (3) ◽  
pp. 205-210 ◽  
Author(s):  
Yukiko Sakata Bekku ◽  
Takayuki Nakatsubo ◽  
Atsushi Kume ◽  
Minako Adachi ◽  
Hiroshi Koizumi
Keyword(s):  
Soil Respiration ◽  
Temperature Dependence ◽  
Respiration Rate ◽  
Tropical Soils ◽  
Soil Respiration Rate

scholarly journals Effects of Micropore Group Spacing and Irrigation Amount on Soil Respiration and Yield of Tomato with Microsprinkler Irrigation under Plastic Film in Greenhouse

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Mingzhi Zhang ◽  
Xiaoqun Yan ◽  
Zhenguang Lu ◽  
Qingjun Bai ◽  
Yushun Zhang ◽  
...  
Keyword(s):  
Soil Respiration ◽  
Respiration Rate ◽  
Dynamic Balance ◽  
Water Saving ◽  
Plastic Film ◽  
Irrigation Amount ◽  
Yield Increase ◽  
Soil Respiration Rate ◽  
Tomato Yield ◽  
Relationship Of

Microsprinkler irrigation under a plastic film in the greenhouse (MSPF) is a water-saving way which adopts the porous discharge form of a pipe under the plastic film. The effects of different micropore group spacings (L1:30 cm, L2: 50 cm) and irrigation amounts [I1: 0.7 Epan; I2: 1.0 Epan; and I3: 1.2 Epan (Epan is the diameter of 20 cm standard pan evaporation, mm)] of the MSPF on the soil respiration and yield of tomato were studied. A completely randomized trial design was used, and drip irrigation under plastic film (CK1) and microsprinkler irrigation (CK2) were also used as controls. The results showed that under the same irrigation amount, the soil respiration rate, tomato yield, and water use efficiency (WUE) of MSPF in spring and autumn are 8.09% and 6.74%, 19.39% and 4.54%, and 10.03% and 2.32% higher than those of CK1, respectively; they are significantly increased by 31.02% and 20.46%, 49.22% and 38.38%, and 58.05% and 34.66% compared with those of CK2, respectively, indicating that MSPF increased the amount of CO2 emission, but tomato yield and WUE were effectively improved, and a dynamic balance was reached among them. Compared with the 50 cm micropore group spacing, the spring and autumn tomato yields and WUE under the 30 cm micropore group spacing were significantly increased by 16.00% and 13.01% and 20.85% and 14.25%, respectively, and the micropore group spacing had no significant effect on the soil respiration rate in both root and nonroot zones. When the I increased from 0.7 Epan to 1.2 Epan, the soil respiration rate and yield in the root and nonroot zones of the spring and autumn tomatoes increased at first and then decreased, and the WUE showed a decreasing trend. The relationship of soil respiration rate between the nonroot and root zones obeys a logarithmic function, and the soil respiration rate in the nonroot zone has a quadratic curve relationship with the yield of tomato. This study can provide data support for the development of water-saving irrigation and yield increase of facility agricultural tomato and the analysis of the soil carbon cycling mechanism.

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