The late Paleozoic earth experienced alternation between glacial and non-glacial climates at multiple temporal scales, accompanied by atmospheric CO2 fluctuations and global warming intervals, often attended by significant vegetational changes in equatorial latitudes of Pangaea. We assess the nature of climate-vegetation interaction during two time intervals: middle-late Pennsylvanian transitio...

Monsoon precipitation in East China shows distinct spatial distribution and its variability is closely linked with the changes of Asian summer monsoon (EASM). Located transition zone between southern subtropical humid climate northern warm temperate semi-humid climate, central a core region for recognizing understanding spatio-temporal EASM. Using U-series dating stable isotope analysis on five...

The chronology of multiple landslide deposits and related lake sediments in the semi-arid eastern Argentine Cordillera suggests that major mass movements cluster in two time periods during the Quaternary, i.e. between 40 and 25 and after 5 14C kyr BP. These clusters may correspond to the Minchin (maximum at around 28^27 14C kyr BP) and Titicaca wet periods (after 3.9 14C kyr BP). The more humid...

The geographical distribution and ecological preferences of Haemaphysalis in domestic animals in Iran were studied 4 times a year from April 2003 to March 2005. A total of 1,622 ixodid tick specimens were collected from 3 different zones. Among them, 108 (6.7%) Haemaphysalis ticks, consisting of 6 species, were identified; H. punctata (3.4%), H. parva (0.5%), H. sulcata (0.6%), H. choldokovskyi...

Alluvial fans develop at the base of drainages where feeder channels release their solid load (Blair and McPherson, 2009; Leeder et al., 1998; Harvey et al., 2005). A classic fan-shape forms where there is a well-defined topographic apex. Multiple feeder channels, however, often blur the fan-shape resulting in a merged bajada. Alluvial fans can be found in almost all terrestrial settings. These...

In humid subtropical areas, outdoor sports activities in winter and spring are very common. However, there is minimal research surrounding this topic, especially terms of thermal comfort. This study explored the complex relationship between microclimate human comfort during various types through a series experiments analysis. The results indicated that (1) spring, WBGT threshold for space was 1...

Studying the impact of regional or seasonal drought on vegetation water-use efficiency (WUE) can identify an effective theoretical basis by which cope with future climate change. Based remote sensing data and grid data, in this study, we calculated ecosystem WUE standardized precipitation evapotranspiration index (SPEI), analyzed temporal spatial divergence WUE, explored relationship between Lo...

The dynamic nature and inaccessibility of wetland ecosystems restricts in situ data collection and promote the use of various remote sensing platforms. This is because of their ability to record large areas in comparatively short time periods and map physically unreachable areas. Sensors in the optical and microwave range of the electromagnetic spectrum play a critical role in wetlands detectio...

The recent global warming slowdown or hiatus after the big El Niño event in 1997/98 raises the questions of whether terrestrial hydrological cycle is being decelerated and how do the hydrological extremes respond to the hiatus. However, the rapidly developing drought events that are termed as "flash droughts" accompanied by extreme heat, low soil moisture and high evapotranspiration (ET), occur...