Diversity and abundance of large old trees in Hainan Island: Spatial analysis and environmental correlations DOI Creative Commons
Chunping Xie,

Jin-Zhuo YAN,

Dawei Liu

et al.

Biotropica, Journal Year: 2024, Volume and Issue: 56(6)

Published: Oct. 17, 2024

Abstract Large old trees (LOTs) are invaluable natural treasures and cultural legacies, holding ecological, historical, social, economic significance. However, climate change human impacts threaten their existence. Understanding species composition, age structure, biomass, distribution patterns in relation to environmental factors is essential for effective conservation. In Hainan Island, South China, we analyzed 1081 LOTs from 74 across 35 families, using a combination of field surveys government data. The dominant families were Moraceae, Sapindaceae, Fagaceae, with key including Ficus altissima , Litchi chinensis Tamarindus indica . followed reverse J‐shape, indicating prevalence aged 300–399 years. contrast, diameter at breast height (DBH) distributions unimodal, favoring medium large‐sized trees. Spatial analysis revealed uneven patterns: the western zone exhibited highest diversity, central moderate eastern low reflecting urban agricultural impacts. Most concentrated elevations 0–50 m. Factors such as GDP, urbanization, forest cover positively correlated LOT abundance average annual temperature particularly these findings emphasize intricate relationship between distribution. They advocate tailored conservation strategies that address complex interplay socioeconomic, influences on preservation. Chinese available online material.

Language: Английский

Climate Change Drives Shifts in Suitable Habitats of Three Stipa purpurea Alpine Steppes on the Western Tibetan Plateau DOI Creative Commons
Huayong Zhang, Benwei Zhang, Yihe Zhang

et al.

Diversity, Journal Year: 2025, Volume and Issue: 17(3), P. 145 - 145

Published: Feb. 21, 2025

The alpine steppe has an important place in ecosystems, and its distribution pattern is strongly influenced by climate change. In this study, we used “biomod2” “FragStats 4.2” to calculate the migration trends habitat fragmentation of three S. purpurea steppes on western Tibetan Plateau. results study show that Stipa purpurea-Ceratoides compacta steppe, purpurea-Carex moorcroftii montis-everestii are climate, while other variables have less impact. Their main influence factors annual precipitation (Bio12), warmest quarter (Bio18), coldest (Bio19), respectively. effects carbon emissions suitable habitats all significant future scenarios. Continued increases will lead a continuous reduction their areas. These communities bounded 33° N. South boundary, mountain ranges tendency migrate higher elevations southward direction. North northward Climate change reduces community aggregation, leading gradual fragmentation. findings provide scientific basis for conservation Plateau, thereby contributing improvement ecosystem stability species diversity.

Language: Английский

Citations

0
Safeguarding China’s irreplaceable natural legacy: combating the illicit trade of old trees DOI Creative Commons
Chunping Xie, C.Y. Jim

Environmental Conservation, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 3

Published: March 25, 2025

Summary The illegal theft of old trees threatens China’s ecological and cultural heritage. Despite legal protections, their high-value timber has persistently fuelled illicit trade driven by economic incentives weak enforcement in remote areas, endangering biodiversity traditions. This Comment article proposes comprehensive alternative approaches to combat the advocating for a strengthened framework, enhanced monitoring systems increased support local authorities. It highlights importance public awareness community engagement conservation efforts address ingrained drivers this trade.

Language: Английский

Citations

0
What Drives the Spatial Variation of Interregional Ancient Trees? A Geoinformatics–Based Approach in Henan, Central China DOI Open Access
Heping Hou,

Wanqian Ren,

Zexin Wang

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(6), P. 1010 - 1010

Published: June 9, 2024

In the context of ecological civilization construction in China, interregional ancient trees are important natural and cultural resources, it is vital that they effectively protected utilized according to their spatial distribution regional conditions order provide a balance between local economic development environment. This article analyzes heterogeneity 26,842 explores underlying human factors by using geoinformatics–based techniques (i.e., nearest neighbor index, kernel density, autocorrelation, geographically weighted regression model) Henan Province, Central China. The research findings conclude that: (1) show positive aggregation effect Western most significant. (2) growing environment elevation exert more obvious influence on pattern trees. (3) main influencing per region different, for example, historical culture Henan, water source Southern Eastern while Northern have weak relationship with each factor. facilitates political strategy making sustainable protection

Language: Английский

Citations

1
Diversity and abundance of large old trees in Hainan Island: Spatial analysis and environmental correlations DOI Creative Commons
Chunping Xie,

Jin-Zhuo YAN,

Dawei Liu

et al.

Biotropica, Journal Year: 2024, Volume and Issue: 56(6)

Published: Oct. 17, 2024

Abstract Large old trees (LOTs) are invaluable natural treasures and cultural legacies, holding ecological, historical, social, economic significance. However, climate change human impacts threaten their existence. Understanding species composition, age structure, biomass, distribution patterns in relation to environmental factors is essential for effective conservation. In Hainan Island, South China, we analyzed 1081 LOTs from 74 across 35 families, using a combination of field surveys government data. The dominant families were Moraceae, Sapindaceae, Fagaceae, with key including Ficus altissima , Litchi chinensis Tamarindus indica . followed reverse J‐shape, indicating prevalence aged 300–399 years. contrast, diameter at breast height (DBH) distributions unimodal, favoring medium large‐sized trees. Spatial analysis revealed uneven patterns: the western zone exhibited highest diversity, central moderate eastern low reflecting urban agricultural impacts. Most concentrated elevations 0–50 m. Factors such as GDP, urbanization, forest cover positively correlated LOT abundance average annual temperature particularly these findings emphasize intricate relationship between distribution. They advocate tailored conservation strategies that address complex interplay socioeconomic, influences on preservation. Chinese available online material.

Language: Английский

Citations

0