下辽河平原浅层地下水环境风险评价及空间关联特征
Environmental risk evaluation of shallow groundwater and its spatial auto-correlation in lower reach of Liaohe River Plain
查看参考文献34篇
|
文摘
|
以下辽河平原浅层地下水为研究对象,将自然灾害风险理论引入地下水环境风险评价,从脆弱性、功能性、胁迫性、适应性4个方面选取指标,构建地下水环境风险评价指标体系和模型。运用GIS空间分析方法对地下水环境风险进行评价,并对风险值进行空间关联特征研究。结果表明:① 研究区内地下水环境中度以上风险区占整个研究区面积的63.12%,其中高风险区占6.79%,较高风险区占18.96%,中等风险区占37.37%;较低风险区占21.98%,低风险区占14.90%。② 地下水环境风险最高的地区主要位于下辽河平原中部的新民市东北部、灯塔市、辽中县西部、黑山县部分地区及凌海市东南部。③ 研究区内地下水环境风险呈现较高的正相关性,相似性高的区域主要分布在中东和中西部风险高值区,以及东北和东南部风险低值区。研究成果丰富了地下水环境风险理论,对下辽河平原地下水环境保护实践具有一定的理论和实践意义。 |
|
其他语种文摘
|
As the economies are in the fast development, disasters occur more frequently. Evaluation, monitoring, and early warning of disaster risks are an important way to reduce the losses caused by the disasters. So it is one of the key topics in the current disaster research. As a major source of water in northern China, groundwater provides resource and ecological and geo-environmental functions. However, groundwater systems in northern China are being threatened by high population density, rapid urbanization and industrialization. Generally speaking, groundwater has been damaged to different degrees, which resulted in the decrease or complete loss of the functions of groundwater systems. So the research of groundwater environmental risk has great practical significance. In this article, the lower reach of Liaohe River Plain was chosen as a study area, and the shallow groundwater system was taken as a research object. The study area contains a large Quaternary groundwater system with characteristics typical of northern China. Social-economic and water environmental data of the Liaohe River Plain in 2012 were used in the study. Although many studies on groundwater have been conducted, few theories of groundwater environmental risk and methods of protection were developed at the groundwater system scale. Drawing lessons from modern hazard and environmental risk theories and methods, based on the definitions of groundwater environmental risks, we built an evaluation index system and an evaluation model for groundwater environmental risks from the aspects such as vulnerability, functionality, stress and adaptability. Using GIS spatial analysis method to evaluate the groundwater environmental risks in this region, we carried out spatial auto-correlation analysis. The results show that: 63.12% of the whole groundwater environment is facing a mid-level risk. In detail, the areas with extreme high risk accounts for 6.79%, the areas with high risk 18.96%, the areas with moderate risk 37.37%, the area s with light risk 21.98%, and the areas with slight risk 14.90%. Most high risk areas are mainly in the northeast of Xinmin City, Dengta City, west of Liaozhong County, parts of Heishan County and southeast of Linghai City. The risk of the study area shows a relatively high degree of positive correlation. The high correlation areas are mainly distributed in mid-east and mid-west of the high-risk areas and the northeast and southeast of low-risk areas. Uncertainty evaluation is an important part of the environmental risk analysis. But due to limited data, we didn't consider the indexes of randomness and fuzziness, which to a certain extent affects the scientific nature and reliability of the evaluation results. With constant improvement on the information sources, more studies will be done to include uncertainty index of groundwater environmental risk evaluation. The specific purpose of this study is to investigate measures to protect the three functions of the groundwater systems based on groundwater system risk evaluation. This study is of great significance to the enrichment of groundwater environmental risk theories and methods, and it also helps with making scientific decisions for the protection of the groundwater system of the lower reach of Liao River Plain and similar areas. |
|
来源
|
地理科学进展
,2014,33(2):270-279 【核心库】
|
|
关键词
|
浅层地下水
;
环境风险
;
空间自相关分析
;
下辽河平原
|
|
地址
|
辽宁师范大学城市与环境学院, 辽宁, 大连, 116029
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1007-6301 |
|
学科
|
自然地理学 |
|
基金
|
国家教育部高等学校博士学科点专项科研基金
;
国家自然科学基金项目
|
|
文献收藏号
|
CSCD:5062858
|
参考文献 共
34
共2页
|
|
1.
陈超.
基于GIS的第四系地下水资源价值研究: 以北京市为例,2012
|
被引
1
次
|
|
|
|
|
2.
陈辉. 生态风险评价研究进展.
生态学报,2006,26(5):1558-1566
|
被引
93
次
|
|
|
|
|
3.
程莉蓉. 关于我国地下水水质保护的思考与建议.
北京师范大学: 自然科学版,2009,45(5/6):564-567
|
被引
4
次
|
|
|
|
|
4.
丁晓静. 基于AHP和熵值法的辽宁省城市生态安全评价.
环境科学与管理,2010,35(12):172-174
|
被引
3
次
|
|
|
|
|
5.
董殿伟. DRASTIC方法在北京平原区地下水易污性评价中的应用.
北京水务,2010(6):22-25
|
被引
2
次
|
|
|
|
|
6.
董华. 论地下水环境系统内涵及其编图.
南水北调与水利科技,2008,6(6):44-46
|
被引
3
次
|
|
|
|
|
7.
杜朝阳. 地下水系统风险分析研究进展.
水科学进展,2011,22(3):437-444
|
被引
10
次
|
|
|
|
|
8.
冯平. 基于突变理论的地下水环境风险评价.
自然灾害学报,2007,17(2):13-18
|
被引
1
次
|
|
|
|
|
9.
韩冰. 地下水有机污染人体健康风险评价初探.
地学前缘,2006,13(1):224-229
|
被引
57
次
|
|
|
|
|
10.
黄崇福.
自然灾害风险评价: 理论与实践,2005
|
被引
3
次
|
|
|
|
|
11.
江剑. 北京市海淀区地下水污染风险性评价.
城市地质,2010,5(2):14-18
|
被引
13
次
|
|
|
|
|
12.
金菊良. 基于三角模糊数随机模拟的地下水环境系统综合风险评价模型.
地理科学,2011,31(2):143-147
|
被引
13
次
|
|
|
|
|
13.
李凯. 下辽河平原地下水多年动态变化特征分析.
地质与资源,2009,18(2):140-143
|
被引
3
次
|
|
|
|
|
14.
李如忠. 地下水环境风险的模糊多指标分析方法.
地理科学,2010,30(2):229-234
|
被引
17
次
|
|
|
|
|
15.
李绍飞. 地下水环境风险评价指标体系的探讨与应用.
干旱区资源与环境,2007,21(1):38-43
|
被引
7
次
|
|
|
|
|
16.
廖永丰. 洪涝灾害风险监测预警评估综述.
地理科学进展,2012,31(3):361-367
|
被引
11
次
|
|
|
|
|
17.
卢亚灵. 环渤海地区生态脆弱性评价及其空间自相关分析.
资源科学,2010,32(2):303-308
|
被引
36
次
|
|
|
|
|
18.
水利部水资源司.
21世纪初期中国地下水资源开发利用,2004
|
被引
5
次
|
|
|
|
|
19.
孙才志. 地下水脆弱性的概念、评价方法与研究前景.
水科学进展,1999,10(4):444-449
|
被引
45
次
|
|
|
|
|
20.
孙才志. 下辽河平原地下水脆弱性研究.
吉林大学学报: 地球科学版,2007,37(5):943-948
|
被引
14
次
|
|
|
|
|
了解气象卫星更多信息，请访问