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Mitigation and adaptation strategies with respect to impacts of climate change/variability and natural disasters Wang Shili Chinese Academy of Meteorological Sciences .
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Mitigation and adaptation strategies with respect to impacts of climate change/variability and natural disastersWang ShiliChinese Academy of Meteorological Sciences
Climate change will bring out remarkable impacts on natural ecosystem and socio-economy, some impacts are catastrophic and irreversible. It is necessary to study the impacts and adopt the adaptive measures in advance in order to mitigate the adverse influence.
with respect to impacts
of climate change
Up till now the study on climate change and its impacts have made many progress. However the issue ofmitigation and adaptationstrategies with respect to impacts of climate change is not played much attention, the relative study is rather insufficient and weakness, and it is difficult to implement and practice. there is a long way to go.
green house gasses
Latent heat flux is reduced
Wheat yield increased by 18.5%, water use efficiency was improved by 22.1%.
arid semi-arid regions
vulnerable ecological environment
less arable land
pool agricultural production
soil and water control by grass
of climate variability on sustainable agriculture
With characteristic of slow development, long duration, wide stricken area and severity.
Significant impact on hydrology, agriculture, eco-environment, economy and society
Weather Stations in China
Soil Moisture Observation Stations
Rainfall Amount in period from Sep. to Oct.
Anomaly Percent (%)
First decade in March, 2004
Thermal inertia method
Second decade in July, 2004
Water supply vegetation index method
on 15, September,
Drought acrage(km2) in whole province: 34771 (19%)
Climate and agro-meteorological Centre, Guangdong
Risk zoning of drought loss of wheat in North China
R:yield reduction percent; P: average yield reduction percent; C: variance coefficient of yield reduction; k: index of disaster-resisting
F, P: water stress and their probability; R,D: yield reduction percent and probability; a: time trend coefficients of drought-resisting capacity
Comprehensive risk zoning
Predicted soil moisture
Irrigation scheme service based on climate forecasts and agrometeorological modelshown on TV
Predicted 10-days early warning of wheat drought
Actual attacked area percentage
Forecasted attacked area percentage
the attacked area percentage of riceby RPH (%)
The forecasted result of the attacked area percentage of rice by RPHwith the average area index of subtropical High from Jul. to Oct. in comparison with the actually occurrence