The Sustainable Environment Management Of Exploiting The Coal In The Sancha River Valley In Guizhou Province

With the development of society and economy, theenvironmental problems complicated and internationalized havedrawn great concerns and high opinions of all humanity, causingpeople to rethink the past patterns of economical development.The deteriorating eco-environment has been the most pressingand severe problem that all the countries, especially thedeveloping countries face. With the large scale development ofWest China, the State Project "Western Electricity To EasternRegions", Guizhou energy resources, plays a significant role.But since the past few years, disordered coal exploitation,laggard techniques and poor producing conditions have causedthe weak environment to deteriorate. So, to stay in a beneficialdevelopmental position in a long time by means of the stateproject, Guizhou must attach emphasis to resource exploitationand ecological environment protection equally, carrying outthe sustainable development of society, economy resources andenvironment. In 2004, coal exploitation in the Sancha River Valleydrainage area was up to above 14 million tons, accounting forone fifth of total coal exploitation of Guizhou. For this reason,it is important to study its exploitation. The Sancha RiverValley belongs to the Wujiang River Valley, one south branchof it, and is situated in the northwest of Guizhou, whose fulllength is 325.6km and drainage area is 7,624km2. The SanchaRiver Valley drainage area is high rich in coal resources andthere exist a lot of coal industries and mining enterprises,resulting in a great quantity of coal industrial waste waterdirectly into the Sancha River Valley to pollute the river waterseriously. In the drainage area, the forest cover rate merelyis 18.47% and the water-soil erosion about half in which thearea land. The problems caused by coal exploitation, such asvegetation damage, land collapse, soil pollution,soil erosionand river pollution, not merely take a great effect onagricultural production and people's lives, but also producemany harmful factors for water supply in the downstream areas.For the security of Project Drinking Water in the Three GreatGorges reservoir areas and mid-Guizhou regions, it is verynecessary to decrease the drainage of contaminants(particularly from coal industries) as far as possible andcarry out such measures of environmental management as controlpollution and soil erosion, ecological restoration, aiming tothe environmental impact of coal industries to the Sancha RiverValley drainage area. The paper has a significant guidance and a useful value inthe research on sustainable development, including theimprovement of eco-environment, the developments of societyand economy and the protections of resource and environment.Its research contents and conclusions are as follows: First of all, through the analysis on the present situationof coal exploitation in the Sancha River Valley drainage area,this paper uses the means of integrated index to evaluate thepresent situation of pollution, and make definite maincontaminants and the pollution degree in the drainage area,2002,2003 and 2004 years monitoring sections all demonstratethe main problem that is urgently to be resolved is suspensionmatters. Secondly, using SPSS statistics software, this papercarries on a correlation analysis between the content of traceelements in the coal and the present situation of waterpollution in the drainage area to find out their relationship,in order to analyse exploiting the coal how effect on the waterquality supply the foundation and a linear prediction on coalexploitation in the years 2007 and 2010, predicting that coalwastes and mine waste water in the two years will separatelybe 2149.84,2277.25 thousand tons and 23.2183,21.086 millioncubic miters, which will take a huge effect on the environment.In addition, abandoned mines are also a serious problem to theenvironment, from which the waste ores not only jam the riverway, but also cause serious heavy metal pollutions to the soiland the river. Finally, aiming mainly at the disposal on coalwastes, mine waste water and abandoned m...