[1]高国庆,张胜利*,梁翠萍,等. 1997-2016年秦岭南坡水源涵养林区河床径流水化学变化特征[J].西北林学院学报,2018,33(6):1-9.[doi:10.3969/j.issn.1001-7461.2018.06.01]
　GAO Guo-qing,ZHANG Sheng-li,*,et al. Changes of Chemical Characteristics of Riverbed Runoff Water in the Water Conservation Forest Region in the Southern-slope of the Qinling Mountains During 1997-2016[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(6):1-9.[doi:10.3969/j.issn.1001-7461.2018.06.01]
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 1997-2016年秦岭南坡水源涵养林区河床径流水化学变化特征()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第33卷
期数:
2018年第6期
页码:
1-9
栏目:
出版日期:
2018-11-30

文章信息/Info

Title:
 Changes of Chemical Characteristics of Riverbed Runoff Water in the Water Conservation Forest Region in the Southern-slope of the Qinling Mountains During 1997-2016
文章编号:
1001-7461(2018)06-0001-09
作者:
 高国庆1; 3; 张胜利2; 3*; 梁翠萍4; 于金鑫1; 3; 潘泰臣1; 3
 （1.西北农林科技大学 水土保持研究所，陕西 杨陵 712100；2.西北农林科技大学 资源环境学院，陕西 杨陵 712100；3.陕西秦岭森林生态系统国家野外科学观测研究站，陕西 杨陵 712100；4.北京江河中基工程咨询有限公司，北京 丰台 100073）
Author(s):
 GAO Guo-qing1; 3; ZHANG Sheng-li2; 3; *; LIANG Cui-ping4; YU Jin-xin1; 3; PAN Tai-chen1; 3
 （1.Institute of Soil and Water Conservation,Northwest A&F University,Yangling,Shaanxi 712100,China;2.College of Resources and Environment,Northwest A&F University,Yangling,Shaanxi 712100,China;3.Qinling National Forest Ecosystem Research Station,Yangling,Shaanxi 712100,China)
关键词:
 ; 秦岭; 河床径流; 水化学
Keywords:
 ; Qinling Mountains;  riverbed runoff;  water chemistry
分类号:
S718.512.3
DOI:
10.3969/j.issn.1001-7461.2018.06.01
文献标志码:
A
摘要:
 在秦岭南坡中山地带火地塘林区，选择有代表性的火地沟和板桥沟流域，以及火地沟流域的2个支沟集水区，对1997-2016年流域和支沟河床径流水pH值及化学成分变化特征进行分析，进而探讨其影响因素。结果表明，2001-2016年径流pH值呈降低趋势，1999-2016年径流Na+浓度呈增大趋势，除2005-2009年外，1997-2016年径流Ca2+和Mg2+浓度呈增大趋势；1997-2016年径流SO42-和PO43-浓度呈增大趋势，NO3-和K+浓度呈降低趋势，NH4+浓度较低，无明显变化趋势。探讨结果的影响因素表明：径流pH值降低和SO42-浓度增大，主要是秦岭周边地区大气污染物远距离输入引起的，径流NO3-和K+浓度降低与秦岭南坡年降雨量增大、年蒸散量降低以及森林植被逐渐恢复有关，径流PO43-浓度增大与大气降雨PO43-浓度增大以及秦岭南坡年降雨量增大有关，径流Na+、Ca2+和Mg2+浓度增大与雨水和径流pH值降低有关。1997-2016年秦岭南坡水源涵养林区河床径流水pH值以及各离子浓度变化较小，不会对秦岭南坡水源地和丹江口水库水质产生不利影响。
Abstract:
 This study was conducted in the Huoditang forest region,which is located at the middle mountain of the southern-slope of the Qinling Mountains.Typical study plots were established on Huodigou watershed,Banqiaogou watershed and two tributaries of Huodigou watershed in the region.Characteristics of interannual changes of pH and chemical components of riverbed runoff water during 1997-2016 were analyzed,and possible causes for the changes were discussed.The results showed that the pH of the runoff water tended to decrease during 2001-2016.The Na+ concentration tended to increase during 1999-2016.In addition to 2005-2009,the Ca2+ and Mg2+ concentration tended to increase during 1997-2016.The SO42- and PO43- concentrations tended to increase during 1997-2016,the NO3- and K+ concentrations tended to decrease,the NH4+ concentration was low and the change trend was insignifican.The analysis of influencing factors of the results showed that the decrease of pH and the increase of SO42- concentration of the runoff water were affected by the long-distance input of atmospheric pollutants in Qinling surrounding area.The decrease of NO3- and K+ concentration was related to increased annual precipitation,decreased annual evaporation and the recovery of forest vegetation in the southern-slope of the Qinling Mountain.The increase of PO43- concentration was related to increased PO43- concentration and increased annual precipitation in the southern-slope of the Qinling Mountains.The increases of Na+,Ca2+ and Mg2+ concentrations was attributed to the decreases of pH of rain and runoff.The concentration changes of pH and chemical components of the riverbed runoff water in water conservation forest areas of the southern-slope of the Qinling Mountains changed little during 1997-2016,which would not resulted in harmful impacts to the water quality of water source area in the southern-slope in Qinling Mountains and Danjiangkou Reservoir.

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备注/Memo

备注/Memo:
 收稿日期：2018-02-03修回日期：2018-05-29
基金项目：西北农林科技大学科研专项（A2990215199）；西北农林科技大学基本科研业务费专项（2452015043）。
作者简介：高国庆，男，硕士，研究方向：水土保持工程与森林水文。E-mail:295162384@qq.com
*通信作者：张胜利，男，副教授，研究方向：水土保持工程与森林水文。E-mail:victory6515@sina.com
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