Response of understory plant functional groups to changes in stand spatial structure in Masson pine (Pinus massoniana Lamb.) plantations depends on thinning mode and intensity

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 376, P. 124441 - 124441

Published: Feb. 8, 2025

Language: Английский

Gradient surface metrics of ecosystem structural diversity and their relationship with productivity across macrosystems

Ecosphere, Journal Year: 2025, Volume and Issue: 16(2)

Published: Feb. 1, 2025

Abstract Structural diversity—the volume and physical arrangement of vegetation within the three‐dimensional (3D) space ecosystems—is a predictor ecosystem function that can be measured at large scales with remote sensing. However, landscape composition configuration structural diversity across macrosystems have not been well described. Using relatively recently developed method to quantify continuous habitat or terrain, we propose application gradient surface metrics (GSMs) patterns provide insights into how its spatial pattern relates function. We first applied an example set GSMs represent heterogeneity, dominance, edge density Lidar‐derived 28 forested landscapes National Ecological Observatory Network (NEON) sites. Second, tested for forest type, geographic location, climate drivers macroscale variation in (GSM‐SD). Third, demonstrated utility these understanding case study NDVI, proxy productivity. found GSM‐SD varied macrosystems, being significantly related some but all metrics. also dominance high peaks height vertical complexity canopy heterogeneity coefficient 120‐m patches were negatively correlated NDVI NEON type always had significant interaction term between relationships. Our demonstrates are useful describe relationship productivity warrants further consideration spatially motivated management decisions.

Language: Английский

Biodiversity and Soil Jointly Drive Ecosystem Multifunctionality in Larch Forests

Forests, Journal Year: 2025, Volume and Issue: 16(5), P. 745 - 745

Published: April 26, 2025

Forests can simultaneously provide a variety of ecosystem functions and services (ecosystem multifunctionality, EMF). Different stand types, influenced by biotic abiotic factors, play key role in determining EMF. To clarify the impact type, as well on EMF, this study quantified EMF across three types: Betula platyphylla pure forest (BP), B. platyphylla–Larix principis-rupprechtii mixed (BL), L. (LP). The multiple-threshold approach was employed to quantify while structural equation modeling used analyze primary factors influencing results indicated following: (1) BL had higher productivity than both BP LP; (2) exhibited significantly functional diversity soil fertility maintenance compared LP, with no significant difference between BL; (3) demonstrated stronger nutrient cycling function LP (4) ranking at all threshold levels > (5) an effective driver levels; (6) niche complementarity effect mass ratio jointly drove low (<50%), influence effects diminishing increased. This enhances our understanding drivers ecosystems provides valuable insights for informing multifunctional management practices.

Language: Английский