Tree-ring blue-intensity reconstruction of the April-September maximum temperature in the Greater Caucasus region of Georgia since 1780 CE.

The April-September maximum temperature in the Greater Caucasus region of Georgia has undergone notable changes, yet extended reconstructions remain scarce. We collected 40 Pinus sylvestris cores from Bakuriani and extracted their blue-intensity (BI) signals, which capture latewood density closely linked to high-season temperature. After chemical treatment and high-resolution scanning, we employed correlation analyses to identify the seasonal temperature signal in BI.

Factors influencing sustainable development in Eco-tourism settlements: A comparative analysis.

This study examined the determinants of sustainable development within national parks and ecotourism settlements across both Tajik National Park and Fann Mountains areas in the Republic of Tajikistan, as well as Zaamin National Park and Hisar State Reserve in the Republic of Uzbekistan. Primary data were gathered from surveys conducted in four distinct settlements across these nations, and subsequent analyses employed descriptive statistics, factor analysis, and Analysis of Variance (ANOVA). The levels of sustainable development varied among the four settlements.

Tree-ring maximum latewood density reveals unprecedented warming and long-term summer temperature in the upper Indus Basin, northern Pakistan.

Understanding long-term temperature variability in the Upper Indus Basin (UIB), northern Pakistan, and its driving mechanisms is challenging due to the scarcity of long observational records and available literature. In this study, we reconstructed a 651-year (1370-2020 CE) warm-season (March-September) temperature record using the tree-ring maximum latewood density (MXD) of blue pine (Pinus wallichiana). The reconstruction explains 57 % of the variance in actual temperature during the common calibration period (1972-2020 CE).