Abstract The aim of this study was to establish the relationships between height and diameter (DBH) Quercus acutissima in a broadleaved-conifer mixed forests Mountain Tai China. Based on data Q. from 0.6 hm2 permanent forest plot, DBH were simulated with six empirical models, including Linear, Power, Chapman-Richards, Logistic, Korf Weibull select optimization model. There is no significant dif...

Abstract The level of soil organic carbon (SOC) fluctuates in different types forest stands: this variation can be attributed to differences tree species, and the variables associated with soil, climate, topographical features. present review evaluates SOC stands determine factors responsible for observed variation. Mixed have highest amount SOC, while coniferous (both deciduous-coniferous ever...

Abstract Land use change and intensification are the most important direct drivers of decreasing biodiversity globally. Therefore, European Union created Natura 2000 network to protect endangered species habitats. Here we interested how ambitious goals actually implemented studying a habitat, “Sarmatic steppe pine forests” (Code 91U0) in national hotspot Franconia (Germany). These forests relic...

Abstract Forest transformation from coniferous monocultures to mixed stands is being promoted worldwide, including the introduction of fast-growing broadleaved tree species within native stands. Here, we studied how enrichment temperate European Scots pine ( Pinus sylvestris ) forest by North-American northern red oak Quercus rubra impacted macronutrient concentrations in two long-lived and dom...

Carbon (C), nitrogen (N), and phosphorus (P) stoichiometry is a key indicator of nutrient utilization in plants, C/N/P ratios are related to the life histories adaptation strategies tree species. However, no consensus has been reached on how leaf stoichiometric characteristics affected by forest type stand ages. The relationships between geographical, meteorological, soil factors also remain po...

We analyzed and compared the effects of biotic factors (species diversity, structural aboveground biomass) abiotic (topography soil properties) on organic carbon in selected mountainous areas Beijing China. An overall goal is to provide a preliminary scientific basis for biodiversity protection coordinated development forest ecosystems subsequent balance this region. Our study were coniferous f...

Tree defoliation and mortality are triggered in Europe by extreme climatic events that recurring since the beginning of XXI century. Data from ICP Forests monitoring networks reveal a general worsening tree conditions last ten years, as consequence drought heat waves affected Southern (2017) Central (2018-2019). In Italy significant increase mortality, assessed on extensive (Level I) network, w...