Abstract Chinese fir [ Cunninghamia lanceolata (Lamb.) Hook.] has a large native distribution range in southern China. Here, we tested differences productivity of plantations different climatic regions and screened the main environmental factors affecting site each region. Relationships index with soil physiochemical properties five layers were examined long-term positioning observation trial c...

Abstract During austral summer, persistent tropical–extratropical cloud bands, such as the South Atlantic convergence zone (SACZ) over America (SAm), link tropical humid areas to subtropics. In this study, we utilize an automatic object-based methodology identify synoptic band events occurring SAm that are responsible for almost 60% of precipitation during rainy season (November–March). additio...

The control of nitrogen (N) and phosphorus (P) loadings to receiving waters is often overcompensated for by catchment planners. objectives this study, which investigated nine catchments in the subtropics China, were (i) quantify explicit relationships between N P topographic, soil landscape characteristics catchments, (ii) identify key impact factors (iii) most influential loading pathways via ...

Abstract. Observations of the eastern subpolar North Atlantic in 2010s show exceptional freshening and cooling upper ocean, peaking 2016 with lowest salinities recorded for 120 years. Published theories mechanisms driving include: reduced transport saltier, warmer surface waters northwards from subtropics associated meridional overturning; shifts pathways fresher, cooler water Labrador Sea driv...

The authors analyze changes in the tropical sea surface temperature (SST), surface wind, and other fields from the twentieth to the twenty-first century in climate projections using the Coupled Model Intercomparison Project phase 3 (CMIP3) multimodel ensemble, focusing on the seasons January–March (JFM) and July–September (JAS). When the annual mean change is subtracted, the remaining ‘‘seasona...

[1] Phytoplankton in the Antarctic deplete silicic acid (Si(OH)4) to a far greater extent than they do nitrate (NO3 ). This pattern can be reversed by the addition of iron which dramatically lowers diatom Si(OH)4:NO3 uptake ratios. Higher iron supply during glacial times would thus drive the Antarctic towards NO3 depletion with excess Si(OH)4 remaining in surface waters. New d Si and dN records...

Intense thunderstorms produce rapid cloud updrafts and may be associated with a range of destructive weather events. An important ingredient in measures of the potential for intense thunderstorms is the convective available potential energy (CAPE). Climate models project increases in summertime mean CAPE in the tropics and subtropics in response to global warming, but the physical mechanisms re...

The incidence and distribution of congenital heart disease in the tropics and subtropics is not known with certainty. In many regions there is little accurate information on birth and death rates or on the causes of death. However, there is suggestive evidence that the figures from the tropics and subtropics are similar to published figures from the temperate zone. Schrire (1964) in Cape Town f...

Spatial variations in sea surface temperature (SST) and rainfall changes over the tropics are investigated based on ensemble simulations for the first half of the twenty-first century under the greenhouse gas (GHG) emission scenario A1B with coupled ocean–atmosphere general circulation models of the Geophysical Fluid Dynamics Laboratory (GFDL) and National Center for Atmospheric Research (NCAR)...