%0 Journal Article
%A SONG Xiao-qing
%A CHEN Jin
%A TANG Yu-jie
%T Assessment of Karst Groundwater Resources by Regression Analysis Case Study of Sifangjing Karst Watershed in Zhijin, Guizhou
%D 2013
%R 10.3969/j.issn.1001-5485.2013.06.002
%J Journal of Yangtze River Scientific Research Institute
%P 5-8
%V 30
%N 6
%X <p>On the basis of analyzing the hydrogeological and Karst feature of Sifangjing Karst spring watershed, we employed employed regression analysis and dry-season runoff modulus to calculate the natural recharge and recoverable resources according to long-time observations of springs in serious drought of 2009-2010. The results are 15.226 million m<sup>3</sup>/a and 5.8571 million m<sup>3</sup>/a, respectively. We also calculated the natural discharge to be 15.338 million m<sup>3</sup>/a by using runoff modulus and compared it with the assessment result from regression analysis. It&rsquo;s found that regression analysis has higher reliability .</p>
%U http://ckyyb.crsri.cn/EN/10.3969/j.issn.1001-5485.2013.06.002