ag systems

Simulating the impact of climate change on rice production in Asia and evaluating options for adaptation

The likely effects of climate change caused by increasing atmospheric carbon dioxide levels on rice production in Asia were evaluated using two rice crop simulation models, ORYZA1 and SIMRIW, running under ‘fixed-change’ climate scenarios and scenarios predicted for a doubled-CO2 (2 × CO2) atmosphere by the General Fluid Dynamics Laboratory (GFDL), the Goddard Institute of.. Read More

Scour in large braided rivers and the recognition of sequence stratigraphic boundaries

Alluvial scour into shallow marine sediments may be caused by the incision of a river adjusting to a new base level following a fall in sea level. The identification of such erosion surfaces has therefore been pivotal in the reconstruction of past sea-level changes from ancient sedimentary sequences. Here we report data from a study.. Read More


The Imperata grasslands of tropical Asia: area, distribution, and typology

The rehabilitation or intensified use of Imperata grasslands will require a much better understanding of their area, distribution, and characteristics. We generated estimates of the area of Imperata grasslands in tropical Asia, and suggested a typology of Imperata grasslands that may be useful to define the pathways toward appropriate land use intensification. We conclude that.. Read More

The Implications of Climate Change for Bangladesh: A Synthesis

This chapter is a synthesis of the findings (reported in the following chapters) of an interdisciplinary, collaborative assessment of what is known, and needs to be known, about the possible effects of climate and sea-level change on Bangladesh. The assessment focussed on six major questions: How might climate change? How might sea level change in.. Read More

The Implications of Climate Change for Bangladesh: A Synthesis

Global Climate And Infectious Disease: The Cholera Paradigm

The origin of cholera has been elusive, even though scientific evidence clearly shows it is a waterborne disease. However, standard bacteriological procedures for isolation of the cholera vibrio from environmental samples, including water, between epidemics generally were unsuccessful. Vibrio cholerae, a marine vibrio, requiring salt for growth, enters into a dormant, viable but nonculturable stage.. Read More

Female migrants in an urban setting — the dimensions of spatial/physical adaptation: The case of Dhaka

This paper outlines poor female migrants’ adaptation process with respect to the spatial/physical dimension in Dhaka, Bangladesh. The striking growth of Dhaka during the period 1961–1981 has been attributed to rural-urban migration and the absolute number of poor has risen. In 1991 Dhaka SMA received more than 40% of the total rural in-migrants. This paper.. Read More

Habitat International
Water, Air, and Soil Pollution

Assessing impacts of climatic variations on foodgrain production in Bangladesh

A simulation study was conducted to assess the vulnerability of foodgrain production in Bangladesh to potential climate change. Simulation runs were made for high yield varieties office for Aus (March-August), Aman (July-November), and Boro (February-July), the traditional growing seasons, using the CERES-Rice model. Simulation runs were made for wheat, which is grown from November through.. Read More

Integrated model systems for national assessments of the effects of climate change: Applications in New Zealand and Bangladesh

To examine the sensitivity of environmental systems to climatic variability and change, integrated model systems for climate impact assessment are being developed for New Zealand (CLIMPACTS) and Bangladesh (BDCLIM). Features common to both model systems include a global climate model, regional modules for generating climate scenarios, and models for biophysical impact analyses. For CLIMPACTS, modified.. Read More

Water, Air, and Soil Pollution
Water, Air, and Soil Pollution

Vulnerability of Bangladesh to climate change and sea level rise through tropical cyclones and storm surges

Bangladesh is frequently visited by natural disasters such as tropical cyclones, storm surges, floods, droughts, tornadoes, and “norwesters.” Of these, tropical cyclones originating in the Bay of Bengal and associated storm surges are the most disastrous. There are various reasons for the disastrous effects of cyclones and storm surges in Bangladesh. Superimposed on these disastrous.. Read More

The Implications of Climate and Sea-Level Change for Bangladesh

Although the “greenhouse effect” and “global climate change” have been the subjects of scientific scrutiny for many decades, only recently have they received widespread public attention. Two major events helped generate this attention. First, in 1990 the Intergovernmental Panel on Climate Change (IPCC) published its findings on the science, impacts and policy implications of climate.. Read More