نتایج جستجو برای: tropical and tropical regions that often expose drought

تعداد نتایج: 17038060  

2008
Rosanne D’Arrigo Jason E. Smerdon

[1] We investigate relationships between Indonesian drought, the state of the equatorial Indian Ocean, and ENSO using three instrumental indices spanning 1884– 1997 A.D.: 1. EQWIN, a zonal wind index for the equatorial Indian Ocean; 2. the Dipole Mode Index (DMI), an indicator of the Indian Ocean SST gradient; and 3. tropical Pacific Niño-3.4 SSTs. A regression model of the Java Sep–Dec Palmer ...

2004
Jason B. Drake Ralph Dubayah Robert G. Knox David B. Clark Richard Condit

Previous studies have shown that canopy metrics from lidar data are highly correlated with aboveground biomass in a variety of closedcanopy forests, however the generality of these site-specific relationships has remained untested. In this study, we compare relationships between lidar canopy metrics and forest structural summaries from a tropical wet forest site in Costa Rica and across a serie...

2017
Jeyachandran Dhanapriya Thanigachalam Dineshkumar Ramanathan Sakthirajan Natarajan Gopalakrishnan Norbert Lameire

Acute kidney injury (AKI) in tropical countries is strikingly different from that in countries with a temperate climate. Tropical regions are characterised by year-round high temperatures and the absence of frost, which supports the propagation of infections that can potentially cause AKI. The aetiology and presentation of AKI reflects the ethnicity, socioeconomic factors, and ecological condit...

2014
Gretchen Keppel-Aleks Aaron S Wolf Mingquan Mu Scott C Doney Douglas C Morton Prasad S Kasibhatla John B Miller Edward J Dlugokencky James T Randerson

The response of the carbon cycle in prognostic Earth system models (ESMs) contributes significant uncertainty to projections of global climate change. Quantifying contributions of known drivers of interannual variability in the growth rate of atmospheric carbon dioxide (CO2) is important for improving the representation of terrestrial ecosystem processes in these ESMs. Several recent studies ha...

2016
Han Cheng Xiang Chen Jianshun Zhu Huasun Huang

Rubber trees are economically important tropical tree species and the major source of natural rubber, which is an essential industrial material. This tropical perennial tree is susceptible to cold stress and other abiotic stresses, especially in the marginal northern tropics. Recent years, the genome sequencing and RNA-seq projects produced huge amount of sequence data, which greatly facilitate...

Mosquito borne infectious diseases are among important group of diseases worldwide. Vaccination is available for some tropical mosquito-borne diseases, especially for Japa-nese encephalitis virus infection and yellow fever. There are also several attempts to develop new vaccines for the other mosquito-borne diseases such as malaria, dengue infection and West Nile virus infection. In this articl...

Journal: :Tree physiology 2005
Rolf Borchert William T Pockman

Trees of tropical semi-deciduous forests range from "drought-avoiding" stem-succulent species with low-density wood (< 0.5 g cm(-3)), which maintain high stem water potentials (psi(STEM) > -0.7 MPa) throughout the year, to "drought-tolerant" deciduous hardwood species (wood density > 0.75 g cm(-3)), which dehydrate strongly during seasonal drought (psi(STEM) < -6 MPa). In stem-succulent and oth...

2016
Shahzad Shaukat

The diseases that occur solely or principally, in the tropical and subtropical regions are called as Tropical diseases. These diseases are less or not prevalent in temperate climates because of the occurrence of a cold season that controls the insect population by forcing hibernation. Public health is the art and science of preventing disease, promoting health and prolonging life through organi...

2006
K. J. TORY M. T. MONTGOMERY N. E. DAVIDSON

This is the first of a three-part investigation into tropical cyclone (TC) genesis in the Australian Bureau of Meteorology’s Tropical Cyclone Limited Area Prediction System (TC-LAPS), an operational numerical weather prediction (NWP) forecast model. The primary TC-LAPS vortex enhancement mechanism is presented in Part I, the entire genesis process is illustrated in Part II using a single TC-LAP...

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