Effects of successive soil freeze-thaw cycles on soil microbial biomass and organic matter decomposition potential of soils

Yanai, Yosuke; Toyota, Koki; Okazaki, Masanori

doi:10.1080/00380768.2004.10408542

Cited by 106 publications

(73 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ie, f, h). In these 5 soils, a lower rate of microbial biomass was maintained (60 to 72%) following the soil freeze-thaw cycles (Yanai et al 2004). These results suggested the inhibitory effect 011 the nitrifying communities in the soils that were relatively resistant to the soil freeze-thaw cycles may be negligible and that on the nitrifying communities may be damaged or undetectable in soils sensitive to soil freeze-thaw cycles, in telms of the rate of microbial survival.…”

Section: Discussionmentioning

confidence: 74%

“…la-c.). In these 3 soils, a much higher rate of microbial biomass was maintained (85 to 94%) following the soil freeze-thaw cycles (Yanai et al 2004). On the other hand, in the PHL A and TUATF soils, the nitrification potential was inhibited by the soil freeze-thaw cycles (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Grassland Andosol TUAT,\ 6.8 53.9 ing capacity (MWHC), pH(HP) values, pH(KCl) values, EC values, weight loss-on-ignition values, total C and total N contents, C / N ratios, and the specific surface area were determined, and the results were presented in the previous rep0l1 (Yanai et al 2004). Initial inorganic (nitrate and ammonium) N contents are shown in Table 1.…”

Section: Locationmentioning

confidence: 99%

“…The soil samples were pre-incubated at a moisture content adjusted to 55% of MWHC and at 2TC for 7 d, and aliquots of 3 g of the soil samples (oven-dry basis) were put into 50 mL centrifuge tubes and sealed to avoid the loss of moisture. The four successive soil freeze-thaw cycles (12 h at -13"C and 12 h at 4"C) and the preparation of control samples were conducted in the same way as described in the previous study (Yanai et al 2004). Immediately after the soil freeze-thaw cycles, 200 J.l-g N of ammonium sulfate per g dry soil was added to the soil samples and the water content of the soils was adjusted to 60% of MWHC.…”

Section: Locationmentioning

confidence: 99%

“…These results suggest that extensive studies on the effect of freeze-thaw cycles on the nitrification potential should be carried out. In our previous study (Yanai et al 2004), we rep01ted that 6 to 40% of the amount of soil microbial biomass decreased following the soil freeze-thaw cycles and the degree of partial sterilization caused by the freeze-thaw cycles was highly cOlTelated with the pH(KCl) value and organic matter content of the soils. These results suggested that the damage to the nitrifying communities caused by the soil freeze-thaw cycles differed depending on some soil physicochemical properties, corresponding to the decrease in the amounts of soil microbial biomass.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Effects of successive soil freeze-thaw cycles on nitrification potential of soils

Yanai

Toyota

Okazaki

2004

Soil Science and Plant Nutrition

Self Cite

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 74%

Section: Discussionmentioning

confidence: 99%

Section: Locationmentioning

confidence: 99%

Section: Locationmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Effects of successive soil freeze-thaw cycles on nitrification potential of soils

Yanai

Toyota

Okazaki

2004

Soil Science and Plant Nutrition

Self Cite

View full text Add to dashboard Cite

Response of changes in seasonal soil freeze/thaw state to climate change from 1950 to 2010 across china

et al. 2016

View full text Add to dashboard Cite

Variations in seasonal soil freeze/thaw state are important indicators of climate change and influence ground temperature, hydrological processes, surface energy, and the moisture balance. Previous studies mainly focused on the active layer and permafrost, while seasonally frozen ground research in nonpermafrost regions has received less attention. In this study, we investigate the response of changes in seasonal soil freeze/thaw state to changes in air temperatures by combining observations from more than 800 stations with gridded mean monthly air temperature data across China. The results show that mean annual air temperature (MAAT) increased statistically significantly by 0.29 ± 0.03°C/decade from 1967 to 2013, with greater warming on the Qinghai-Tibetan Plateau. There is a statistically significant decrease in the freeze/thaw cycle (FTC) at 0.39 ± 0.05 cycles/decade. In addition, there are strong negative correlations between FTC and MAAT. Estimating the soil freeze/thaw state classification based on the number of days in the month, we find that changes of mean annual area extent of seasonal soil freeze/thaw state decreased significantly for completely frozen (CF) ground, while the area extent of partially frozen (PF) and unfrozen (UF) ground both increased. Changes in mean monthly area extent of seasonal soil freeze/thaw state indicate that the extent of CF and UF area was decreasing and increasing, respectively. But for the extent of PF areas, both increasing and decreasing trends were observed. Quantifying the spatial pattern of the seasonal soil freeze/thaw, we find that CF and PF areas are located in northern China and the Tibetan Plateau from December to March, and UF areas are located in southern China. The variations of mean annual area extent departure of soil freeze/thaw states are consistent with MAAT changes in different land cover types across China.

show abstract

Extreme Climate Effects on Dissolved Organic Carbon Concentrations During Snowmelt

2018

View full text Add to dashboard Cite

Extreme weather and climate events are predicted to increase in frequency and severity in the near future, which could have detrimental consequences for water quality in northern latitudes. Key processes that regulate the production and transport of solutes, like dissolved organic carbon (DOC), from soils to streams can be potentially altered by episodes of extreme temperature and/or precipitation. Here we use an intensively studied research catchment in northern Sweden with 23 years of data to ask how extreme antecedent climate events influence DOC concentration during snowmelt. Specifically, we used a combination of principal components analysis, cluster analysis, and multivariate partial least square analysis to show that almost every year provides some combination of extreme conditions in terms of intensity, duration, or frequency of temperature and/or rainfall. However, in terms of DOC responses to these events, variations in peak concentrations were most closely related to cold winter conditions, winter precipitation (snow), and temperature during the previous autumn. Specifically, years with most severe frost and icing during winter, but low winter precipitation, previous summer precipitation, and warmer autumns, showed the highest peaks in concentrations. In contrast, the lowest peak DOC concentrations were observed during spring snowmelt following high summer precipitation, colder autumns, and high winter precipitation. While this research highlights the importance of winter climate for influencing the DOC concentration during the spring, it also points to the potential importance of lag effects from preceding seasons on responses observed during the snowmelt season.

show abstract

Effects of successive soil freeze-thaw cycles on soil microbial biomass and organic matter decomposition potential of soils

Cited by 106 publications

References 23 publications

Effects of successive soil freeze-thaw cycles on nitrification potential of soils

Effects of successive soil freeze-thaw cycles on nitrification potential of soils

Response of changes in seasonal soil freeze/thaw state to climate change from 1950 to 2010 across china

Extreme Climate Effects on Dissolved Organic Carbon Concentrations During Snowmelt

Contact Info

Product

Resources

About