[1] The stable carbon isotope composition (dC) of tree rings in a climate-sensitive region can provide a retrospective view of changes in environment and climate. Here, we report on the development of the first annually resolved dC tree ring chronology obtained from natural forests on the northeastern Tibetan Plateau. Climate data show a warming trend and more frequent droughts occurring in the...

Atlantic White Cedar (AWC) swamps are a globally threatened type of wetland ecosystem and new form ghost forest in the mid-Atlantic region US. Hydrogeomorphic regimes foster peat formation, resulting unique biodiversity carbon sequestration services. Our sites include that exposed to sea-level rise storm-driven seawater intrusion, yet other protected by higher elevations. In this study, we eval...

Drought is a natural disaster with long duration and which causes great harm. Studying the characteristics of drought evolution in Shanxi Province can grasp regularity occurrence provide basis for prevention resistance. This study utilizes MODIS products to analyze quantify extent specific area. The calculates several indices, including Crop Water Stress Index (CWSI), Vegetation Supply (VSWI), ...

Water clarity (generally quantified as the Secchi disk depth: SDD) is a key variable for assessing environmental changes in lakes. Using remote sensing we calculated and elucidated SDD dynamics lakes Inner Mongolia-Xinjiang Lake Zone (IMXL) from 1986 to 2018 response variations temperature, rainfall, lake area, normalized difference vegetation index (NDVI) Palmer's drought severity (PDSI). The ...

Simple mean-field approach for frustrated antiferromagnets on hexagonal lattices, aimed to describe the high-temperature part of temperature-magnetic field phase diagram, is proposed. It shown, that an interplay between modulation vector symmetry, Zeeman energy and magneto-dipolar interaction leads stabilization triple-$Q$ skyrmion lattice in a certain region diagram. Corresponding analytical e...

Abstract Extensive and severe droughts have substantial effects on water supplies, agriculture, aquatic ecosystems. To better understand these droughts, we used tree-ring-based reconstructions of the Palmer drought severity index (PDSI) for period 1475–2017 to examine that covered at least 33% conterminous United States (CONUS). We identified 37 spatially extensive events CONUS examined their s...

Drought poses a serious threat to agricultural production and food security in the context of global climate change. Few studies have explored response mechanism lag time drought meteorological from perspective cultivated land types. This paper analyzes spatiotemporal evolution patterns hysteresis relationship droughts middle lower reaches Yangtze River China. Here, Moderate Resolution Imaging ...