Nutrient Dynamics in Forest Plantations

Forest plantations are managed systems in which the availability, uptake and cycling of nutrients profoundly influence tree growth, carbon sequestration and long-term site productivity. Nutrient dynamics encompass the inputs of elements via weathering, atmospheric deposition and fertilisation; their transformation through organic matter decomposition and microbial activity; internal redistribution within tree biomass; and losses through harvest and leaching. Rates of litterfall decomposition, soil texture and pH, stand density and species composition interact to determine the balance of nitrogen, phosphorus, potassium and other elements. Age-related declines in nutrient concentration in foliage and wood can signal emerging limitations to productivity. Advances in modelling and biometrics, including the use of allometric equations and isotopic tracing, now allow more precise prediction of nutrient demands over plantation rotations. Integrating soil-plant-microbe feedbacks with precision silviculture supports sustainable fertilisation strategies and enhances the resilience of plantation systems to global change.

Research from Nature Portfolio

Recent work has characterised soil fertility requirements and nutrient accumulation patterns in high-yielding tropical plantations. Detailed sampling of soils and tree biomass across age classes enabled the formulation of allometric models that predict macro- (N, P, K, Ca, Mg, S) and micronutrient (Fe, B, Mn, Zn, Cu) stocks as a function of tree dimensions. Findings revealed a consistent sequence of macronutrient demand (Ca > N > K > P > S > Mg) and identified square-root and logistic model forms as the most accurate for nutrient estimation. These tools offer forest managers quantitative guidance for timing fertiliser applications and maintaining soil fertility across productivity cycles.

Research from all publishers

Studies using stable isotopes have quantified how land-use change alters carbon and nitrogen pools in plantation versus natural forests. Isotopic signatures (δ13C, δ15N) in soil and foliage have revealed deeper nitrogen enrichment in mixed stands and higher organic matter quality in topsoil layers, underscoring the benefits of mixed-species designs for nutrient retention. Controlled experiments manipulating litterfall inputs in subtropical pine and mixed stands demonstrated that litter additions boosted soil ammonium and nitrate concentrations and accelerated net rates of ammonification, nitrification and mineralisation, particularly in mixed species sites. Research on teak plantations in West Africa has documented significant declines in soil nitrogen and available phosphorus under successive rotations, accompanied by modest rises in soil pH. Multivariate analysis linked soil chemical properties directly to tree growth metrics, highlighting the necessity of site-specific, integrated soil fertility management to sustain plantation productivity and ecological function.

Nutrient Dynamics in Forest Plantations publication trend

The graph below shows the total number of articles in nutrient dynamics in forest plantations across all publications each year (not limited to Nature Index journals).

Technical terms

Nutrient cycling: Movement and transformation of elements through soil, plants and microbial pools within an ecosystem.

Allometric equations: Mathematical relationships that estimate tree biomass or nutrient content from measurable dimensions such as trunk diameter and height.

Macronutrients: Essential elements required in relatively large amounts by plants, notably nitrogen, phosphorus and potassium.

Micronutrients: Essential trace elements such as iron, manganese and zinc, required in small quantities for physiological processes.

Nitrogen mineralisation: Microbial conversion of organic nitrogen compounds into inorganic forms (ammonium and nitrate) available to plants.

Isotopic abundance (δ13C, δ15N): Ratios of stable carbon or nitrogen isotopes used to trace nutrient sources and pathways within ecosystems.

References

1. Soil characteristics and allometric models for biometric characteristics and nutrient amounts for high yielding “Bolaina” (Guazuma crinita) trees. Scientific Reports (2024).
2. Unraveling the Influence of Land-Use Change on δ13C, δ15N, and Soil Nutritional Status in Coniferous, Broadleaved, and Mixed Forests in Southern China: A Field Investigation. Plants (2021).
3. Soil Nitrogen Transformation Process Influenced by Litterfall Manipulation in Two Subtropical Forest Types. Frontiers in Plant Science (2022).
4. Teak‐Soil Interaction: Teak (Tectona grandis) Plantations Impact and are Impacted by Soil Properties and Fertility in Southwestern Ghana. Applied and Environmental Soil Science (2024).