Publications by authors named "Dorothy Sack"
Article Synopsis
- This study focuses on understanding past plant cover changes in the Songnen grasslands of northeastern China to better predict future vegetation dynamics and inform conservation efforts.
- Using the REVEALS model, researchers analyzed pollen records to show that steppe and dry steppe vegetation dominated the central grasslands, while the marginal areas experienced a mix of forest types and dry steppes.
- The findings suggest that the East Asia Summer Monsoon and precipitation patterns were the primary drivers of vegetation changes over time, with additional influences from fire events and limited impacts from human activity.
This study investigates the reliability of phytolith assemblage analysis for characterizing subtropical vegetation and explores the potential for using these modern phytolith-vegetation relationships for paleoenvironmental interpretation in southeastern China. The samples were collected from five common subtropical vegetation communities in the Daiyun Mountains, southeastern China, with the above-ground vegetation recorded at each plot. Constrained ordination analysis was used to determine the most important factor governing the variations in phytolith assemblages that could be quantitatively reconstructed with weighted averaging partial least squares regression (WAPLS).
View Article and Find Full Text PDFPeatlands located at the northern edge of the East Asian monsoon (EAM) are well placed to provide a terrestrial record of past climate and hydrological changes for this globally sensitive region. Here we present a middle to late Holocene, diatom-derived water-table records from a peatland in the Greater Hinggan Mountains, northeastern China. An age-depth model was achieved through AMSC dating and Bayesian piece-wise linear accumulation modelling.
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