Soil phosphorus dynamics along a short‐term ecological restoration trajectory of a coastal sandplain forest in New Zealand

Abstract

We aim to understand the impact of ecological restoration on soil biogeochemistry, and the interrelationship between vegetation and soil phosphorus. In a study of two different‐aged soils in coastal New Zealand, soils are described along a transition from abandoned agricultural pasture, through 6‐year old restoration plots, towards forest fragments that have been largely undisturbed for 75 and 166 years. Soil biogeochemistry varied spatially along this restoration trajectory; there were profound changes in surface soil, but little impact on deeper soil horizons. In the early stages, soil organic matter accumulation and decomposition, and increasing demand of N from fast‐growing plants corresponded with rapid nutrient mineralization. Loss of soil total P, an increase of occluded P, and the increasing importance of soil organic P as soils weathered and aged, supported conceptual models of longer‐term soil pedogenesis. There was no evidence that the success of the establishment of plants varied across the site, but this is a first report of vegetation establishment during ecological restoration markedly impacting soil P dynamics and biogeochemistry.

Effects of slope aspect on altitudinal pattern of soil C:N:P stoichiometry in alpine forest of Tibet

“…The Sygera mountains distribute typical primordial dark coniferous forests growing at elevations ranging from 3700 to 4380 m above sea level in both sunny and shady slopes, making it an ideal area for comparing altitudinal patterns of soil stoichiometry at different slopes. Previous studies in Sygera mountains demonstrated that tree growth, plant communities, and soil bacterial communities change remarkably with the altitude [8][9][10][11]. However, current knowledge of the role of slope aspects on these changes as well as soil stoichiometry is limited.…”

Phosphorus adsorption in a degraded soil under forestry recovery after bauxite mining in Paragominas, eastern Amazon, Brazil

“…This highlights the need for plant biomass as a coverage in reclaimed topsoils, aiming to protect it from erosion and facilitating nutrients recycling in the soil–plant system (Borges et al, 2019). Among these nutrients, phosphorus (P) stands out as a vital element for plant growth and development, despite its considerably low availability in tropical soils (Aleixo et al, 2020; Zhong et al, 2020). Several processes can cause this low availability, especially adsorption (Alovisi et al, 2020; Lu et al, 2017; Roy et al, 2017).…”