Effects of soil nutrients and stand structure on aboveground net primary productivity of oak secondary forests in the forest–steppe transition zone of Loess Plateau, China

Sun, Mingdong; Zhai, Bo-Chao; Chen, Qiu‐Wen; Li, Guoqing; Tateno, Ryunosuke; Yamanaka, Norikazu; Du, Sheng

doi:10.1139/cjfr-2020-0459

Cited by 3 publications

(1 citation statement)

References 55 publications

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“…A relationship between soil type and SI was also reported by Bijak & Sacewicz (2018). A study on the impact of environmental factors on site productivity in southern Poland (Tymińska-Czabańska et al, 2021) and the influence of soil characteristics on oak secondary forests in China (Sun et al, 2021) also demonstrated the relationship between soil and geology with site productivity.…”

Section: Discussionmentioning

confidence: 96%

Drivers of site productivity for oak in Poland

Viet¹,

Tymińska-Czabańska²,

Socha³

2022

Dendrobiology

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The site index (SI) is the most commonly used and representative measure of the phytocentric approach; it evaluates the site productivity based on the stand height and age. In the case of mixed stands with complex structures, phytocentric methods are very limited, while in non-forest areas, they are not applicable. In situations where the applicability of phytocentric methods is limited, the site productivity is determined by geocentric methods. Geocentric methods allow direct modelling of site productivity, expressed by SI predicted from various environmental variables. The aim of this study was to develop a geocentric model for oak. Site productivity expressed by SI was described by the environmental variables and stand characteristics. To develop the SI model, we used the data from 2490 NFI plots with dominant oak species (Quercus sessilis and Quercus robur). A generalized additive model was used in modelling site productivity. We documented a significant relationship between SI and the environmental variables, age of stands and stand density. Furthermore, the site productivity for oak is shaped by climate factors, soil type, geology, and altitude. The model developed based on the geocentric method, explained 55.1% of the variation of SI

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Section: Discussionmentioning

confidence: 96%

Drivers of site productivity for oak in Poland

Viet¹,

Tymińska-Czabańska²,

Socha³

2022

Dendrobiology

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Plant size traits are key contributors in the spatial variation of net primary productivity across terrestrial biomes in China

An,

Lu,

Wang

et al. 2024

Science of The Total Environment

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Variations in Soil C, N, P Stocks and Stoichiometry With Soil Depth and Forest Types in Qilian Mountains of Northwest China

Rahman

Wang

Zhang

et al. 2022

Front. Environ. Sci.

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Forests ecosystem plays a significant role in supplying multiple services given the unique properties of forest soils, in which the elements of C, N, and P are essential to support soil fertility and site productivity. However, soil properties at different soil depths between plantation forests (PF) and natural forests (NF) have not been well quantified. Therefore, the current study was carried out in the Qilian Mountains of northwest China to determine the difference between PF and NF in the soil properties, both physical (e.g., bulk density, BD) and chemical (e.g., pH value, the contents, stocks, and stoichiometry of soil organic carbon (SOC), total N (TN), and total P (TP)). Research analyzed soil samples at different depths (0–20, 20–40, 40–60, 60–80, and 80–100 cm). The results showed that the soils’ pH values and BD were significantly higher (p ≤ 0.05) in PF than in NF and increased with soil depth. The contents of SOC, TN, and TP decreased considerably with soil depth and then stabilized at the soil depth of 80–100 cm. The NF showed significantly higher (p ≤ 0.05) SOC, TN, and TP contents than PF, confirming that the soil quality of PF had not fully recovered yet. The stocks of SOC and TN quickly decreased with soil depth up to 40–60 cm and stabilized gradually. Additionally, the soil stoichiometry of C:P and N:P decreased significantly with rising soil depth, while the C:N ratio remained unchanged. The N:P and C:P ratios were lower in PF than in NF, while the C:N ratio was higher in PF than in NF. In conclusion, the results show that the soils of NF present significantly higher stocks of SOC and TN but lower (or nearly equal) TP stocks than PF (under the same age group and tree species composition). These results imply that maintaining NF and avoiding their replacement by PF can help keep higher soil quality and related ecosystem services.

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Effects of soil nutrients and stand structure on aboveground net primary productivity of oak secondary forests in the forest–steppe transition zone of Loess Plateau, China

Cited by 3 publications

References 55 publications

Drivers of site productivity for oak in Poland

Drivers of site productivity for oak in Poland

Plant size traits are key contributors in the spatial variation of net primary productivity across terrestrial biomes in China

Variations in Soil C, N, P Stocks and Stoichiometry With Soil Depth and Forest Types in Qilian Mountains of Northwest China

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