CAJ | 학술논문

为研究南水北调中线工程调水前,汉江中下游的水量和水质本底特性及变化趋势,选择汉江中下游6个水文站及4个水质观测断面,采用数理统计、Mann-Kendall检验和Spearman秩次检验法,分别从水量和水质两个方面进行了分析。研究结果表明：(1)对比分析历史长序列流量资料,1999~2013年间汉江中下游地区处于偏枯期；(2)汉江中下游水量的年际变化较大,极值比介于2.7~3.3之间。水量年内各月分配变化也较大,汛期径流量占全年的63%~66%,非汛期仅占全年的34%~37%；(3)汉江中下游地区各水文测站的年均流量序列,总体上随时间变化的趋势均不显著,但经历了1980~1990的偏丰期及1990~2013的偏枯期；(4)汉江中下游地区的水质达标情况较好,大部分年份的水质均优于III类水质标准,且水质无显著的变化趋势。
위연구남수북조중선공정조수전,한강중하유적수량화수질본저특성급변화추세,선택한강중하유6개수문참급4개수질관측단면,채용수리통계、Mann-Kendall검험화Spearman질차검험법,분별종수량화수질량개방면진행료분석。연구결과표명：(1)대비분석역사장서렬류량자료,1999~2013년간한강중하유지구처우편고기；(2)한강중하유수량적년제변화교대,겁치비개우2.7~3.3지간。수량년내각월분배변화야교대,신기경류량점전년적63%~66%,비신기부점전년적34%~37%；(3)한강중하유지구각수문측참적년균류량서렬,총체상수시간변화적추세균불현저,단경력료1980~1990적편봉기급1990~2013적편고기；(4)한강중하유지구적수질체표정황교호,대부분년빈적수질균우우III류수질표준,차수질무현저적변화추세。
In order to evaluate the characteristics and change trend of the water quantity and quality in the middle and lower reaches of the Hanjiang River before the running of the middle route of the south-to-north water diversion project (MR-SNWDP), 6 hydrometry stations and 4 water quality monitoring sections were selected, and mathematical statistics, Mann-Kendall test and Spearman test were used for the analysis. The results are follows: (1) 1999~2013 are in the dry season in the middle and lower reaches of the Hanjiang River based on a comparative analysis of the long term observed flow data; (2) The flow in this area indicate a considerable inter-annual variation with a proportion (maximum/minimum) between 2.7 and 3.3. The variation of annual flow in this area is also noticeable. Runoff during the flood season is accounting for 63 percent to 66 percent of the total runoff of the year, and runoff during the dry season is accounting for 34%~37% of the total runoff in the whole year. (3) The change trend of the flow-time series in this area is not noticeable. However, it experienced two periods: the wet seasons (from 1980 to 1990) and the dry seasons (from 1990 to 2013). (4) The water quality in this area is good according to the analysis of the water quality monitoring data, which can attain the standards of grade III in the most years, and the change trend of water quality in this area is also not noticeable.