Soil Degradation and the Decline of Available Nitrogen and Phosphorus in Soils of the Main Forest Types in the Qinling Mountains of China

Zheng, Xiaofeng; Yuan, Jie; Zhang, Tong; Fan, Hao; Jose, Shibu; Zhang, Shuoxin

doi:10.3390/f8110460

Cited by 16 publications

(8 citation statements)

References 31 publications

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“…Some studies demonstrated that higher AF in soils could promote plant growth (Zhao et al 2009 ; Xiao et al 2012 ). The study of Zheng et al ( 2017 ) showed that the pine-dominated forests had the highest content of phosphorus in soil, while the mixed forests and oak-dominated forests had slightly lower content P. This was confirmed by this study.…”

Section: Discussionsupporting

confidence: 88%

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Dynamics of phosphorus content and the activity of phosphatase in forest soil in the sustained nitrogen compounds emissions zone

Lemanowicz

2018

Environ Sci Pollut Res

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This paper summarizes research work on the seasonal and profile dynamics of phosphorus content and the activity of phosphatase in soil next to the nitrogen industry. The results are presented of the total phosphorus (TP) and available phosphorus (AP) content and the alkaline phosphatase (AlP) and acid phosphatase (AcP) against the basic physicochemical properties (clay, pH, total organic carbon, total nitrogen). Three soil profiles were sampled from Brunic Arenosols 0.8, 2.0, and 2.5 km away from the nitrogen plant. The control profile was taken from the Tuchola Forest. The soil was collected in both spring and autumn. The results showed that the total phosphorus content was higher in spring than in autumn (the value of index of changes in time TI < 0) contrary to available phosphorus (TI > 0) and in both seasons in surface soils, the lowest, in profile I. Both total and available phosphorus decreased with depth along the soil profiles. The distribution index (DI) calculated for total phosphorus in surface soils demonstrated a rather moderate accumulation, while DI value for available phosphorus for profile III, a considerable accumulation. The availability factor (AF) for all the soil samples was above the threshold of phosphorus load (2%) in the two seasons in this study (from 2.00 to 10.13% for spring and from 3.92 to 21.19% for autumn), suggesting that the transformation rate from TP to AP was high, and AP supply for plant growth was sufficient. The correlation analysis showed a significant and positive correlation of available phosphorus with soil properties such as total organic carbon (r = 0.577), total nitrogen (r = 0.512), and clay (r = 0.493); however, there was no correlation with the activity of phosphatases.

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Section: Discussionsupporting

confidence: 88%

“…This may result in a significant decrease in soil phosphorus (Vitousek et al 2010 ). The study on Zheng et al ( 2017 ) showed that temperature is the most critical factor controlling the soil nitrogen, and species composition is the main factor regulating the soil available phosphorus.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of phosphorus content and the activity of phosphatase in forest soil in the sustained nitrogen compounds emissions zone

Lemanowicz

2018

Environ Sci Pollut Res

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“…In this study, low values in N were linked to plots with species composition resembling cloud forests whose biodiversity is one of the highest among the mountain forest in Mexico (Gual-Díaz & Rend on-Correa, 2014). Moreover, the elevation gradient in this study is related to low temperatures, which is an important factor in the regulation of N and P (Zheng et al, 2017); steep slopes also allow deep soil accumulation, which increases bedrock weathering to preserve mineral-derived nutrients, such as Ca, Mg, K, and P. High values of precipitation and humidity are also critical factors affecting P distribution in soil, even more limiting that N (which is deposited largely from the atmosphere); therefore, its mineralization in organic form accounts for its supply to plants (Shiau et al, 2018). The process explained above must be taking place in the study area as litter was a significant variable explaining species composition in the Quercus-dominated forest.…”

Section: Sizesmentioning

confidence: 85%

Environmental and spatial processes shaping Quercus‐dominated forest communities in the Neotropics

Figueroa-Rangel

Olvera-Vargas

2022

Ecosphere

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Quercus‐dominated forests in the Neotropics compose one of the broadest distributed ecosystems of mountainous zones whose species distribution has been explained by climate change adaptation over an abrupt physiography. This study aims to comprehend the contribution of environmental and spatial processes influential in species composition of Quercus‐dominated forests. A database of 86 plots, randomly located in a highly diverse spot of the Mexican Neotropics, was examined; it involved vegetation, environment, and spatial data. Local spatial variables were derived from distance‐based Moran's eigenvector maps, while regional spatial variables were obtained from geographical coordinates (latitude/longitude). Redundancy analysis and variance partitioning were run to reveal the relative importance of environmental and spatial processes explaining plant species composition of Quercus‐dominated forests and ascertain the environmental variables controlling the species composition at the different spatial scales (local and regional). Results showed that both local and regional spatial variables significantly control species composition in Quercus‐dominated forests, with the regional scale accounting for a higher explained variance than the local scale. At the regional scale, elevation, aspect, litter, maturity, and Mg were significant in explaining species community composition; elevation variance was twofold higher than variance for aspect and litter. At the local scale, elevation accounted for the highest variation followed by maturity, P, N, and Mg. The analysis also tested the variation of species community composition over environmental gradients mainly determined by elevation. This study indicated the importance of elevation at both local and regional spatial scales as an important driver in Quercus‐dominated forests distribution, probably related to Quercus species adaptation to temperature and precipitation. Finally, evidence from this research emphasizes the significance and necessity of a multiscale analysis to discern the spatial structured environment responsible for the high species diversity and broad distribution of forests dominated by Quercus genus in the Neotropics.

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“…Analysis data indicated that the AN showed an increasing trend with the chronosequence, while the AP and AK showed an opposite trend. Researchers proposed that the concentrations of soil available nutrients (i.e., AN, AP, and AK) were species-dependent, which could be explained by the "complementary" or "mass" effects related to plant diversity in forest ecosystems (Zheng et al, 2017;Liu et al, 2021). Han et al (2021) demonstrated that the content of AK showed a positive correlation with BD.…”

Section: Changes In Soil Physico-chemical Properties During Forest Re...mentioning

confidence: 99%

Changes in Soil Physico-Chemical and Microbiological Properties During Natural Succession: A Case Study in Lower Subtropical China

Zhao

Feng

et al. 2022

Front. Plant Sci.

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Vegetation succession can change the function and quality of the soil. Exploring the changes in soil properties during secondary forest restoration is of great significance to promote forest restoration and improve the ecological service function of subtropical ecosystems in South China. In this study, we chose three typical forests in subtropical China as restoration sequences, broadleaf–conifer mixed forest (EF), broad-leaved forest (MF), and old-growth forest (LF), to study the changes in soil physico-chemical and biological properties and the changes of soil comprehensive quality during the secondary succession of subtropical forest. The results showed that the soil physical structure was optimized with the progress of forest succession. The soil bulk density decreased gradually with the progress of forest restoration, which was significantly affected by soil organic carbon (p < 0.01). In LF, the soil moisture increased significantly (p < 0.05), and its value can reach 47.85 ± 1.93%, which is consistent with the change of soil porosity. With the recovery process, soil nutrients gradually accumulated. Except for total phosphorus (TP), there was obvious surface enrichment of soil nutrients. Soil organic carbon (15.43 ± 2.28 g/kg), total nitrogen (1.08 ± 0.12 g/kg), and total phosphorus (0.43 ± 0.03 g/kg) in LF were significantly higher than those in EF (p < 0.05). The soil available nutrients, that is, soil available phosphorus and available potassium decreased significantly in LF (p < 0.05). In LF, more canopy interception weakened the P limitation caused by atmospheric acid deposition, so that the soil C:P (37.68 ± 4.76) and N:P (2.49 ± 0.24) in LF were significantly lower than those in EF (p < 0.05). Affected by TP and moisture, microbial biomass C and microbial biomass N increased significantly in LF, and the mean values were 830.34 ± 30.34 mg/kg and 46.60 ± 2.27 mg/kg, respectively. Further analysis showed that total soil porosity (TSP) and TP (weighted value of 0.61) contributed the most to the final soil quality index (SQI). With the forest restoration, the SQI gradually increased, especially in LF the value of SQI was up to 0.84, which was significantly higher than that in EF and MF (p < 0.05). This result is of great significance to understanding the process of restoration of subtropical forests and improving the management scheme of subtropical secondary forests.

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Soil Degradation and the Decline of Available Nitrogen and Phosphorus in Soils of the Main Forest Types in the Qinling Mountains of China

Cited by 16 publications

References 31 publications

Dynamics of phosphorus content and the activity of phosphatase in forest soil in the sustained nitrogen compounds emissions zone

Dynamics of phosphorus content and the activity of phosphatase in forest soil in the sustained nitrogen compounds emissions zone

Environmental and spatial processes shaping Quercus‐dominated forest communities in the Neotropics

Changes in Soil Physico-Chemical and Microbiological Properties During Natural Succession: A Case Study in Lower Subtropical China

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