Effects of precipitation on soil acid phosphatase activity in three successional forests in southern China

Huang, Wenjuan; Liu, J.; Zhou, Guoyi; Zhang, Di; Deng, Qi

doi:10.5194/bg-8-1901-2011

Cited by 56 publications

(22 citation statements)

References 41 publications

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“…Temporal variation in the phosphatase activity was also caused by fluctuation in precipitation and temperature (Huang et al 2011). In this study, however, there was no significant relationship between the weather parameters and phosphatase activity (data not presented), which suggests that other factors were predominant in the functionality of the enzymes.…”

Section: Inside-population Variability Of P Forms and Related Enzymescontrasting

confidence: 63%

Spatio-temporal variations of soil properties in a plot scale: a case study of soil phosphorus forms and related enzymes

et al. 2015

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Purpose Spatio-temporal variability in soil properties has long been observed on uniformly managed fields. Understanding the spatial characteristics of soil properties would be helpful in recognizing their relationship and the development of site-specific management techniques. The objective of this study was to determine the spatio-temporal variation of P forms and related enzymes and their relationship with some physico-chemical properties in a plot scale. Materials and methods A grid soil sampling (10×10 m) was used to measure the spatial variation of soil properties across a 0.4-ha field. Soil samples were collected at 50 points from the upper 20 cm of luvisols in April and August 2007. The total (P T ), available (P A ), inorganic (P I ), organic (P O ) phosphorus concentration, and acid (P AC ) and alkaline (P AL ) phosphatase activity were analyzed. Additionally, total organic carbon (TOC), soil pH KCl , and clay content were determined. Data were evaluated using classical statistical and geostatistical methods. Results and discussion Both enzyme activities were significantly higher in April than in August, while the P T and P I concentration were significantly lower. The concentrations of P O and P A did not significantly differ between sampling dates. The spherical or mixed (spherical/linear) models with the nugget effect were fitted to the calculated semivariograms. The P A and TOC concentrations on both sampling dates as well as P AC activity in April were situated in the strong variability class, the P I concentration in April revealed a weak spatial variability and the other properties were in the moderate variability class. The clay content revealed a pure nugget effect. The range of the influence that was calculated for the properties ranged from 16.5 to 50.0 m. Kriged maps showed that temporal variability was observed in the spatial patterns of the P I and TOC concentrations and P AC activity. Conclusions Results from this study can help us to understand and predict the contribution of internal factors (i.e., soil type) in the total variability of soil properties that can interfere with the influence of soil management practices. The spatiotemporal variability showed that the studied area was temporally unstable and the implication of these findings is that more frequent sampling, at least several times throughout the growing season, must be included in the sampling strategy in order to better understand whether P forms and related enzymes show any permanent spatial patterns in soil all of the time or whether they are more randomized.

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Section: Inside-population Variability Of P Forms and Related Enzymescontrasting

confidence: 63%

Spatio-temporal variations of soil properties in a plot scale: a case study of soil phosphorus forms and related enzymes

et al. 2015

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“…Although Huang et al (2011) obtained a negative correlation between AcP activity and soil pH, the soil pH analyzed by them during the rainy season increased (in comparison to the dry season) [35]. In the studied Fluvisols, increased humidity caused soil acidification that resulted in a statistically significant positive correlation between AcP and pH even after 14 days of flooding.…”

Section: Correlationsmentioning

confidence: 79%

Changes in Soil Enzymatic Activity Caused by Hydric Stress

Furtak¹,

Gałązka²,

Niedźwiecki³

2020

Pol. J. Environ. Stud.

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The increase in flooding in Europe is linked to the presence of excessive moisture in many areas. Enzymes are a sensitive parameter of soil environment, therefore we have made an attempt to assess the impact of simulated flood conditions on their activity. We determined the activity of dehydrogenases and acid and alkaline phosphatase after 7 and 14 days of flooding the three Fluvisols with river water in controlled conditions. The obtained results indicate a significant influence of soil moisture on enzymatic activity and soil pH, which indicates that the soil environment is changing as a result of flooding.

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“…Some documented that nitrogen enrichment resulted in SOC sequestration [46]. Others argued that SOC rejuvenation could be due to soil acidification [47].…”

Section: Discussionmentioning

confidence: 99%

Land Use Types and Geomorphic Settings Reflected in Soil Organic Carbon Distribution at the Scale of Watershed

2018

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Soil organic carbon (SOC) is vital to soil ecosystem function and it plays a key role in carbon cycling in the terrestrial ecosystem. The spatial pattern of SOC stock (SOCs) is affected by specific geomorphic settings and land-use types at the scale of watershed. Nevertheless, the distribution of SOCs with fluvial landform regimes and land use types was not sufficiently elucidated in the semi-humid riparian ecosystem in north China. In this study, 103 soil plots were sampled and spatial auto-correlation method was adopted to detect the spatial pattern of SOCs in the Changhe watershed that was located at the boundary of the Loess Plateau and the Taihang Mountains. The results showed that SOCs in the Changhe watershed varied from 18.03 Mg ha−1 to 21.51 Mg ha−1 and it was in the order: grassland > forestland > cropland > construction land. SOCs varied with geomorphic settings, among which, the altitude exerted more influence on the distribution of SOCs than the aspect and the slope. In terms of the spatial pattern of SOCs, 17 plots with higher SOCs collectively distributed in the west of the watershed and that with lower SOCs (19 plots) concentrated in the midlands. This indicated that the upland had higher SOCs while the lowland had lower values. Overall, land use type and geomorphic settings (especially the altitude) should be considered when estimating the SOC sequestration in warmer and wetter watershed in north China. With regard to the implications for land use management, reforestation could elevate the SOCs. Moreover, no-tillage and returning crop straw to cultivated soils could be efficient approaches to elevate soil carbon sequestration and soil productivity.

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Effects of precipitation on soil acid phosphatase activity in three successional forests in southern China

Cited by 56 publications

References 41 publications

Spatio-temporal variations of soil properties in a plot scale: a case study of soil phosphorus forms and related enzymes

Spatio-temporal variations of soil properties in a plot scale: a case study of soil phosphorus forms and related enzymes

Changes in Soil Enzymatic Activity Caused by Hydric Stress

Land Use Types and Geomorphic Settings Reflected in Soil Organic Carbon Distribution at the Scale of Watershed

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