The global economic background and the agriculture situation are reflected in the first part of the report,the global and regional fertilizer consumption predictions from 2005/06 to 2010/11 in the second part,and the IFA projections of fertilizer supply and supply/demand balances from 2006 to 2010 in the third section.

Based on the characteristics of water supply system of multi-water resources, a dynamic analysis model on supply and demand balance of water resources is presented in this paper in order to optimize using water resources and to protect and improve water environment quality.

Started from the current situation of water resources in Huhhot,the supply and demand balance of water resources was forecasted.

Through analysis of necessity and rationality of water supply and demand balance based on third balance law, it lays a theoretical base for the study.

Ecocity-oriented water resources supply-demand balance analysis.;

Long-term supply-demand balance of water resources is simulated based on the condition and development of water resources of the level year 2030.

This draft have put forward a model mathematics of optimum matching ,when the city road and mode of traffic balance between supply and demand, based on the formula counting the city road network capacity and the city traffic demand.

Based on "Beijing City Overall Plan",the planning of water resources in Beijing is analyzed in the aspects of development and utilization as well as balance between supply and demand.