N, P, and K characteristics of different age groups of temperate coniferous tree species in northwestern China

Simin, Liu; Wang, Hao

doi:10.1007/s11676-017-0442-3

Cited by 9 publications

(2 citation statements)

References 27 publications

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“…There are obvious differences in the nutrient content of different tree species (Eriksson and Rosen, 1994), and there are also significant differences in nutrient contents of different organs of trees (Deng et al, 2019), in the current study, the N and K content of each organ is the highest in leaves, followed by branches, and relatively small in stems and roots, so the difference in forest biomass and organ nutrient content directly determines the N, P, and K nutrient retention capacity of trees. And as the basic element of protein, compared with P and K, N has the highest average content in individuals of different tree species (Liu and Wang, 2018), so the tree nutrient value of N element per unit area of different stand types and age groups is the highest, followed by P and K. As the forest age increases, the overall annual nutrient retention value of the forest shows a trend of first increasing and then significantly decreasing when it reaches the over-mature forest stage. In particular, the near-mature and mature F. mandshurica forests and B. platyphylla forests should be the primary management targets for enhancing the nutrient retention value of forestry in the reserve.…”

Section: Discussionmentioning

confidence: 99%

The effects of forest types and age groups on forest provisioning and supporting service value in Sanhu Nature Reserve, Northeast China

Liu

Chen

et al. 2023

Front. For. Glob. Change

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The promotion of forest resource protection and sustainable development relies greatly on the value of forest ecosystem services. In Jilin Songhuajiang Sanhu National Nature Reserve in Northeast China, a total of 169 sample plots were examined and analyzed to evaluate the provisioning and supporting services provided by the forest ecosystem. The study revealed that the near-mature and over-mature Fraxinus mandshurica forest have relatively high timber supply and species resources conservation values per unit area, respectively. Furthermore, the mature Betula platyphylla forest has the highest forest nutrient retention value, while the near-mature Juglans mandshurica forest has the highest soil conservation value, with the nitrogen fixation value accounting for the highest proportion. The forest ecosystem services in the reserve have a total value of 659.07 million $⋅y–1. The main contributors to the value are the services of soil fertilizer conservation, timber supply, and species resources conservation, with the mixed broad-leaved forest and Quercus mongolica forest being the main contributors, accounting for 63.1 and 18.8% of the total value, respectively. Nonetheless, the service value of per unit area in J. mandshurica forest is the highest. Near-mature and mature forests are the main contributors to the total value, accounting for 42.3 and 34.9%, respectively. Forest lands exhibit significant variations in the values of provisioning and supporting services across different stand types and age groups.

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Section: Discussionmentioning

confidence: 99%

The effects of forest types and age groups on forest provisioning and supporting service value in Sanhu Nature Reserve, Northeast China

Liu

Chen

et al. 2023

Front. For. Glob. Change

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“…Soil total N was estimated using a semi-micro-Kjeldahl technique [41]. Following the calcination of the soil sample at 550 • C [42], total P was analyzed using sulfuric acid-soluble Mo-Sb colorimetry after solution extraction using sulfuric acid. Soil total K was analyzed using sodium hydroxide alkali fusion-flame photometry [43].…”

Section: Experimental Design Sample Collection and Chemical Analysismentioning

confidence: 99%

Periodic Flooding Decoupled the Relations of Soil C, N, P, and K Ecological Stoichiometry in a Coastal Shelterbelt Forest of Eastern China

Bao,

Chang,

Jin

et al. 2023

Forests

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Understanding the variation in soil nutrients found in coastal shelterbelt forests in response to periodic flooding is crucial for restoring the soil quality of flooded stands. In this study, we examined soil organic carbon (SOC), total nitrogen (TN), total phosphorus (TP), total potassium (TK) contents and their ecological stoichiometry, as well as soil organic matter and soil-available N, P, and K contents at three soil depths (0–10, 10–20 and 20–30 cm), in a shelterbelt forest of eastern China that was affected by periodic flooding. Results showed that soil C, N, and P contents all had a clear decreasing trend after being flooded, with significant decreases in SOC, TN and hydrolyzable N of 0–10 cm soil, as well as TP of 10–20 cm soil. Soil K content, however, had minimal changes after flooding across different soil layers. Soil C:N ratio increased significantly in 0–10 cm layer, while soil C:P, C:K, N:P, N:K, and P:K ratios decreased notably in both 0–10 cm and 20–30 cm layers following the flooding. Additionally, periodic flooding partially decoupled the correlations among SOC, TN, TP, TK and their ratios. For example, the connection between TK and N:P reversed into a negative correlation in 10–20 cm soil, while SOC and TK became negatively correlated with TP and P:K in the 20–30 cm layer. Principal component analysis revealed the effects of periodic flooding on soil C, N, P, and K availability, in which the total explained variance was decreased from 94% to 86.6%. Specifically, flooding significantly reduced the SOC and soil TN contents on the first axis, influencing C- and N-related ratios. On the second axis, flooding mainly affected soil TK content, which subsequently influenced the correlation between SOC and TK. Thus, periodic flooding notably affected the soil C, N, P, and K ecological stoichiometries of the coastal forest, but the variation patterns were depth-dependent. The insights gained from these results can contribute to the restoration of soil quality in degraded stands caused by flooding in the coastal shelterbelts regions of Eastern China.

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Responses of Plant Growth to N or P Addition Vary With Mycorrhizal Strategy

Li,

Shi,

Yang

et al. 2023

J Plant Growth Regul

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N, P, and K characteristics of different age groups of temperate coniferous tree species in northwestern China

Cited by 9 publications

References 27 publications

The effects of forest types and age groups on forest provisioning and supporting service value in Sanhu Nature Reserve, Northeast China

The effects of forest types and age groups on forest provisioning and supporting service value in Sanhu Nature Reserve, Northeast China

Periodic Flooding Decoupled the Relations of Soil C, N, P, and K Ecological Stoichiometry in a Coastal Shelterbelt Forest of Eastern China

Responses of Plant Growth to N or P Addition Vary With Mycorrhizal Strategy

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