Effective palynological diversity indices for reconstructing angiosperm diversity in China

Plant Diversity, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The utilization of palynological data for plant diversity reconstructions offers notable advantages in addressing the discontinuity fossils stratigraphic record. However, additional studies modern processes are required to validate or refine accuracy results obtained from data. In this study, we used a pollen dataset China compare using five different indices (i.e., species number, Berger-Parker index, Simpson Hill and Shannon-Wiener index) over large spatial scale. We then identified climate factors that most strongly correlated with these patterns diversity. found index accurately reflects is index. Our analyses indicated effective at reflecting Numerical analysis revealed (measured was climatic parameters, particular average temperature coldest month annual precipitation, suggesting may be primary determinants distribution. also threshold value normalized (NH = 0.4) approximately aligns contour line specifying 400 mm serving as rudimentary indicator assessing arid versus humid climates. This study suggests have remarkable potential quantitatively reconstructing paleoclimatic parameters.

Language: Английский

---

Surface-soil sporopollen and their relationship with climatic factors in southern Xinjiang, China: implications for palaeoclimate reconstruction

Vegetation History and Archaeobotany, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Language: Английский

---

Representation of vegetation and climate by modern pollen assemblages on the south-eastern Tibetan Plateau

Review of Palaeobotany and Palynology, Journal Year: 2025, Volume and Issue: unknown, P. 105329 - 105329

Published: March 1, 2025

Language: Английский

---

Modern pollen deposition in relation to different vegetation types in the Jaintia Hills of Meghalaya, Indo-Burma region: implications for palaeoecological reconstructions

Grana, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 13

Published: March 27, 2025

Language: Английский

---

sedaDNA and pollen disclose treeline advancing and plant diversity trajectory under recent climate warming in southwestern Hengduan Mountains, China

Quaternary Science Reviews, Journal Year: 2025, Volume and Issue: 357, P. 109348 - 109348

Published: April 5, 2025

Language: Английский

---

Different response patterns of vegetation to environmental changes during the mid-to-late Holocene: Pollen evidence from an alpine lake in Western Sichuan Province, southwestern China

CATENA, Journal Year: 2025, Volume and Issue: 256, P. 109117 - 109117

Published: May 8, 2025

Language: Английский

---

Challenges of earth remote sensing data during geological exploration

International Journal of Environmental Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: May 10, 2025

Language: Английский

---

Modern pollen assemblages in lake surface sediments and their relationships with vegetation, climate, and human activities in Yunnan, SW China

Review of Palaeobotany and Palynology, Journal Year: 2024, Volume and Issue: unknown, P. 105205 - 105205

Published: Sept. 1, 2024

Language: Английский

---

Assessment of the Impact of Land Use on Biodiversity Based on Multiple Scenarios—A Case Study of Southwest China

Diversity, Journal Year: 2024, Volume and Issue: 16(10), P. 630 - 630

Published: Oct. 10, 2024

The main causes of habitat conversion, degradation, and fragmentation—all which add to the loss in biodiversity—are human activities, such as urbanization farmland reclamation. In order inform scientific land management biodiversity conservation strategies and, therefore, advance sustainable development, it is imperative evaluate effects land-use changes on biodiversity, especially areas with high biodiversity. Using data from five future scenarios under various Shared Socioeconomic Pathways (SSPs) Representative Concentration (RCPs), this study systematically assesses characteristics landscape pattern southwest China by 2050. This builds a comprehensive index forecasts trends species richness quality using models like Fragstats InVEST overall research yielded subsequent conclusions: (1) Grasslands woods will continue be primary uses future. But amount grassland expected decrease 11,521 102,832 km2, amounts wasteland urban area are increase 8130 16,293 km2 4028 19,677 respectively. Furthermore, anticipated that metropolitan see an fragmentation shape complexity, whereas forests wastelands these aspects. (2) China, there synergistic relationship between quality, both still at relatively levels. terms percentage regions categorized outstanding good range 71.63% 74.33% 70.13% 75.83%, environmental circumstances for survival worsen comparison 2020, notwithstanding Western Sichuan, southern Guizhou, western Yunnan home most high-habitat-quality species-richness areas, while plateau majority lower scoring areas. (3) (89.84% 94.29%) forecast undergo little change spatial distribution general ecological environment predicted stay favorable. Except SSP1-RCP2.6 scenario, however, region declining exceed those increasing projected decline 1.0562% 5.2491% index. These results underscore major obstacles area, highlighting need fortify macro-level management, put into practice efficient regional plans, incorporate traditional knowledge save

Language: Английский

---

Relationships between pollen assemblages and modern vegetation of the southern Gaoligong Mountains region, southwest China

Review of Palaeobotany and Palynology, Journal Year: 2024, Volume and Issue: unknown, P. 105230 - 105230

Published: Oct. 1, 2024

Language: Английский

---