Inconsistent Variations in Components of Functional Stability Under Heterogeneous Conditions: A Case Study from the Maolan Karst Forest Ecosystems in Guizhou Province, Southwest of China

Forests, Год журнала: 2025, Номер 16(2), С. 304 - 304

Опубликована: Фев. 9, 2025

Human-induced environmental changes threaten the functional stability of natural forest ecosystems. Understanding dominant factors influencing both space and in extremely heterogeneous environments is crucial for elucidating Here, 30 dynamic plots were established along successional pathway Maolan National Nature Reserve Southwest China. By measuring 15,725 stems across 286 distinct species’ six key plant traits, we constructed traits quantified redundancy (FR) vulnerability (FV) to represent stability, further utilized line model multiple linear regression explore biotic/abiotic indicators degraded karst forests. Additionally, as unfolded, contribution overall increased, from 59.85% 66.64%. These included specific leaf area (SLA), dry matter content (LDMC), thickness (LT) nitrogen (LNC), which played a role driving space. With increasing species richness (FR), entities (p < 0.001) FR while FV 0.01) decreased. The results also demonstrated higher forests (FR > 2). However, over 51% FEs consisted single species, with majority clustered into few (FEs), indicating an elevated level Soil nutrient availability significantly influences ecosystem’s explaining 87% variability 100% variability. Finally, rich SR could provide sufficient insurance effects; soil pH available potassium (AK) enhance resilience, exchangeable calcium (Eca), total phosphorus (TP) (TK) indicate resistance This study highlights complex mechanisms extreme habitat conditions, thereby deepening our understanding ecosystem function maintenance.

Язык: Английский

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Species Rarity and Topography Determine the Plant Functional Structure Along the Successional Pathway in Heterogeneous Degraded Karst Forests

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

ABSTRACT Understanding the dynamics of plant functional community structure along successional pathway is crucial for natural resource conservation and environmental management, especially in those specially degraded ecosystems. This study established forest dynamic plots karst forests to measure six traits: specific leaf area, dry matter content, thickness, carbon nitrogen phosphorus content. By implementing Grime's CSR strategy employing a ternary diversity diagram framework, variations ecological strategies were quantified. The results showed that plants with competitive increased succession, while S‐strategy decreased. declined from early‐ mid‐successional stages, followed by an increase late‐successional stage, corresponding inverse trend redundancy. Furthermore, there was decrease species dominance which contributed trade‐off between topographic roughness soil pH value main abiotic factors determining variation among stages. Species rarity positively impacted but negatively affected redundancy, highlighting role rare maintaining ecosystem functionality emphasizing vulnerability ecosystems changes. provides valuable insights into mechanisms forests, thereby facilitating development effective management.

Язык: Английский

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Soil functional microbes can modify the plant functional diversity mainly through changing the plant functional traits of evergreen species in karst forests

Plant and Soil, Год журнала: 2025, Номер unknown

Опубликована: Март 19, 2025

Язык: Английский

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Understory biodiversity in Karst forests: A comparison of pure (Pinus massoniana) and mixed forests in Guiyang, China

Forest Ecology and Management, Год журнала: 2025, Номер 588, С. 122753 - 122753

Опубликована: Апрель 29, 2025

Язык: Английский

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Effects of Three Fertilizers on Improving Soil Characteristics and Growth Performance of Mahonia fortunei (Lindl.) Fedde in Rocky Desertification Areas

Land, Год журнала: 2025, Номер 14(5), С. 1090 - 1090

Опубликована: Май 17, 2025

Rocky desertification, a severe form of land degradation in tropical and subtropical regions driven by vegetation loss soil erosion, poses significant ecological economic challenges. Field trials Fengshan County, Guangxi, China, evaluated the efficacy NPK compound fertilizers, slow-release bio-organic fertilizers on rehabilitation, microbial diversity, growth Mahonia fortunei, key species for restoration understory cash crop cultivation. The results demonstrated fertilizer’s superiority regeneration, increasing organic matter 30.4% (Bolin), 15.73% (Longlai), 21.83% (Longlei) compared to alongside elevating total nitrogen (reaching 19.4 g/kg Bolin) phosphorus (85.45% higher Bolin). Bio-organic fertilizer increased enzyme activities 27–202% enhanced notably Proteobacteria Actinobacteria. Slow-release maximized micronutrient availability (e.g., Cu 151.65% improved plant growth, achieving peak fortunei (Lindl.) Fedde height (3.62 cm, 9.04%) ground diameter (4.5 18.42%) Longlei fertilizers. Regional variability highlighted dominance fertility metrics, while formulations excelled enrichment performance. exhibited lowest efficacy, potentially exacerbating degradation. This study advocates integrating regeneration with targeted applications productivity, particularly systems. Such dual approach bridges resilience karst ecosystems, offering scalable solutions global rocky desertification mitigation.

Язык: Английский

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Species prefer to shifting niche positions rather than expanding niche breadth to adapt to the heterogeneous karst forests

Forest Ecosystems, Год журнала: 2024, Номер 11, С. 100247 - 100247

Опубликована: Янв. 1, 2024

Язык: Английский

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