Diurnal variation in soil respiration under different land uses on Taihang Mountain, North China

Liu, Xiuping; Zhang, Wanjun; Zhang, Bin; Yang, Qihong; Chang, Jianguo; Hou, K C

doi:10.1016/j.atmosenv.2015.11.034

Cited by 25 publications

(16 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Soil respiration (R s ) represents carbon dioxide (CO 2 ) efflux from the soil surface, including autotrophic/root respiration, and heterotrophic/microbial respiration associated with soil organic matter and litter decomposition (Boone et al, 1998;Kuzyakov, 2006;Schindlbacher et al, 2009). As one of the largest fluxes in the global carbon cycle, R s plays an important role in regulating ecosystem carbon cycling, carbon-climate feedback, and climate change (Raich and Schlesinger, 1992;Davidson et al, 2002;Luo and Zhou, 2006;Bond-Lamberty and Thomson, 2010). The temperature sensitivity of R s (Q 10 ), the factor by which R s is multiplied when temperature increases by 10 • C, is a key parameter to evaluate the feedback intensity between soil carbon efflux and climate warming (Reichstein et al, 2005;.…”

Section: Introductionmentioning

confidence: 99%

Patterns of soil respiration and its temperature sensitivity in grassland ecosystems across China

et al. 2018

View full text Add to dashboard Cite

Abstract. Soil respiration (Rs), a key process in the terrestrial carbon cycle, is very sensitive to climate change. In this study, we synthesized 54 measurements of annual Rs and 171 estimates of Q10 value (the temperature sensitivity of soil respiration) in grasslands across China. We quantitatively analyzed their spatial patterns and controlling factors in five grassland types, including temperate typical steppe, temperate meadow steppe, temperate desert steppe, alpine grassland, and warm, tropical grassland. Results showed that the mean (±SE) annual Rs was 582.0±57.9 g C m−2 yr−1 across Chinese grasslands. Annual Rs significantly differed among grassland types, and was positively correlated with mean annual temperature, mean annual precipitation, soil temperature, soil moisture, soil organic carbon content, and aboveground biomass, but negatively correlated with soil pH (p<0.05). Among these factors, mean annual precipitation was the primary factor controlling the variation of annual Rs among grassland types. Based on the overall data across Chinese grasslands, the Q10 values ranged from 1.03 to 8.13, with a mean (±SE) of 2.60±0.08. Moreover, the Q10 values varied largely within and among grassland types and soil temperature measurement depths. Among grassland types, the highest Q10 derived by soil temperature at a depth of 5 cm occurred in alpine grasslands. In addition, the seasonal variation of soil respiration in Chinese grasslands generally cannot be explained well by soil temperature using the van't Hoff equation. Overall, our findings suggest that the combined factors of soil temperature and moisture would better predict soil respiration in arid and semi-arid regions, highlight the importance of precipitation in controlling soil respiration in grasslands, and imply that alpine grasslands in China might release more carbon dioxide to the atmosphere under climate warming.

show abstract

Section: Introductionmentioning

confidence: 99%

Patterns of soil respiration and its temperature sensitivity in grassland ecosystems across China

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Previous studies have suggested that in humid and semi-humid regions the effect of soil moisture on Rs is weak, whereas in arid and semi-arid regions, Rs is significantly influenced by soil moisture (Jia et al, 2006;Li et al, 2011;Wang et al, 2014aWang et al, , 2014b. Moreover, some studies showed that soil moisture and temperature had an interactive effect on the seasonal variations of Rs rate (Davidson et al, 1998;Jia et al, 2006;Wang et al, 2014b;Liu et al, 2016), indicating that the two-variable equations could better explain the variation in Rs than single variable of temperature. Our results also showed that, in general, R 2 for Q10 closely increased with MAP (P < 0.05, Fig.…”

Section: R 2 For Q10 In Chinese Grasslandsmentioning

confidence: 99%

Patterns and controls of soil respiration and its temperature sensitivity in grassland ecosystems across China

Feng

Wang

Song

et al. 2018

Preprint

View full text Add to dashboard Cite

show abstract

“…Cultivation with T. chinensis can stabilize the soil surface temperature on a daily scale, as the large vegetation coverage of these species reduces the value of Q 10 . At present, much uncertainty remains about the use of Q 10 values, so the exploration of proper Q 10 values along with their influencing factors is important for coastal saline wasteland reclamation for carbon sequestration (Liu et al 2016).…”

Section: Correlations Between Soil Respiration and Its Influencing Famentioning

confidence: 99%

Soil Respiration and Photosynthetic Carbon Gain on an Abundant Coastal Land After Plantation of Tamarix chinensis

Hussain¹,

Li²,

Feng³

et al. 2020

Handbook of Halophytes

View full text Add to dashboard Cite

A field experiment was performed to assess the dynamics of soil respiration and its key influencing factors in a coastal saline wasteland along the Bohai Sea at 3 and 10 years after planting Tamarix chinensis. The results showed that the cultivation of T. chinensis, which corresponded to relatively higher root biomass and soil-infiltration ability, can result in a significantly higher rate of soil respiration than that of abandoned saline-alkali bare land as well as regulated net photosynthesis along with other CO 2 /H 2 O gas exchange parameters. The root growth rate was the key factor that affected the soil respiration rate more than the total root biomass of the plants did. The soil surface temperature was also an important factor that affected the soil respiration rate in each land, and the soil salt and water contents were closely related to only root respiration on the lands planted with 3-year-old T. chinensis due to the short-term improvement of the soil by the plant community; long-term cultivation of T. chinensis reduced the soil surface salinity during the period of the highest evaporation and provided an adequate carbon source for the growth of bacteria, fungi, and actinomycetes. This research can offer a reference value for the characteristics of carbon sequestration during the process of vegetation regeneration on coastal saline lands.

show abstract

Diurnal variation in soil respiration under different land uses on Taihang Mountain, North China

Cited by 25 publications

References 47 publications

Patterns of soil respiration and its temperature sensitivity in grassland ecosystems across China

Patterns of soil respiration and its temperature sensitivity in grassland ecosystems across China

Patterns and controls of soil respiration and its temperature sensitivity in grassland ecosystems across China

Soil Respiration and Photosynthetic Carbon Gain on an Abundant Coastal Land After Plantation of Tamarix chinensis

Contact Info

Product

Resources

About