The cloud-water resources of the Qilian Mountain were analyzed by using the observed data of eight meteorological stations from 1960 to 2002 and the NCEP/NCAR data(2.5°×2.5°) for the period of 1970-1997.Results show that the water vapor amount gradually increased from spring to summer,and then decreased;
From three aspects of the lack of water resources,water disaster and water pollution,this paper expounds the problems faces by the water resources in Yancheng City,and based on this,advances a series of measures for implementing the sustainable utilization of the water resources in Yancheng City.
Based on the continual monitoring data in 1971～2006 and social investigation data in 2001～2006 obtained from the Marine Fisheries Research Institute of Zhejiang Province,the small scale traditional light seining fisheries and their utilization of the resources were analyzed.
This paper used the recent ground water information(from 1980 to 2000),has calculated the yearly average exploitation of shallow groundwater which mineralization degrees M was below 2 g/L by the way of exploiting coefficient for each second water resources region and the plain of every province respectively.
WOE (Weights of evidence) method is used to study the pecific vulnerability of nitrate nitrogen in Tangshan plain area, which is conducted on the extension module of Arc-SDM with ArcView GIS software as the platform.
(3) This paper is to assess sustainability of land use on the basis of land related data during 1996~2004 in Liu panshui city. Method of correlation analysis and fuzzy mathematics were employed. Thirty indexes, land resource, ecology environment and social —economic aspects, were used in the integrated assessment.