The Mollisols from the Pampas Region of Argentina have been described as presenting different compactability behaviors under agricultural systems. The purpose of this study was to provide information on the inherent soil factors related to the susceptibility to compaction. Total organic carbon (TOC), texture (CLAY, SILT, SAND), water retention at 0.33 kPa (WR), Proctor maximum bulk density (BDM...

Abstract Droughts cause serious environmental and societal impacts, often aggravated by simultaneously occurring heat waves. Climate vegetation play key roles in the evolution of drought-associated temperature anomalies, but their relative importance is largely unknown. Here, we present hottest anomalies during drought subhumid tree-dominated regions using observation-based, global data over 20...

Understanding the functioning of shrub species during dry periods is necessary to forecast ecosystem responses future climates, particularly in Mediterranean environments. We evaluated seasonal changes leaf gas exchange, hydraulic traits, carbon and nitrogen isotopes, non-structural carbohydrates seeders resprouting typical Aleppo pine forests across an aridity gradient Tunisia: Djebel Zaghouan...

Climate change is a reality and will affect the poor in developing countries in many ways. The effectiveness of global change research could be substantially improved by linking International Geosphere-Biosphere Programme (IGBP) study with Consultative Group on International Agricultural Research (CGIAR) centres based in the tropics. These centres are carrying interdisciplinary research and dev...

Abstract Climate zones fundamentally shape the patterns of terrestrial environment and human habitation. How global warming alters their current distribution is an important question that has yet to be properly addressed. Using root-layer soil moisture as indicator, this study investigates potential future changes in climate with perturbed parameter ensemble projections by HadGEM3-GC3.05 model ...

As commonly defined, the tropics comprise that region of the earth lying between the Tropics of Cancer and Capricorn, constituting 38% of the larid surface (5 x 109 ha). The tropics may also be defined as those areas with mean temperatures greater than 18'C in all mor.ths of th. year. A third definition of the tropics specifies those areas with soils in which the tempera­ ture at a depth of 50 ...

Gale crater, home of the Curiosity rover, contains some best geomorphic and sedimentologic evidence on Mars for large lakes during Hesperian Amazonian. Orbital data rover observations delta deposits terminations gully networks suggest several phases stable lake levels. However, regional extent, water source (groundwater vs. surface water), climate each stand are debated. Consistent network term...

In the boreal forests of North America, large wildfires often leave residual patches unburned vegetation, termed fire refugia, which can affect post-fire ecosystem processes. Although topographic complexity is a major driver refugia in mountainous terrain, plains are more likely driven by combination other bottom-up controls on fuel configuration as well top-down climate controls. this study, w...