城市绿地不同管理方式土壤重金属污染及生态风险评价

孟婷婷; 刘金宝; 董浩; 王博; 张国剑

doi:10.13205/j.hjgc.202212029

城市绿地不同管理方式土壤重金属污染及生态风险评价

doi: 10.13205/j.hjgc.202212029

孟婷婷^1,2,4,
刘金宝^1,2,3,4, ,,
董浩^1,2,4,
王博^1,2,4,
张国剑¹

1. 陕西省土地工程建设集团有限责任公司, 西安 710075;
2. 陕西地建土地工程技术研究院有限责任公司, 西安 710075;
3. 西安理工大学, 西安 710048;
4. 自然资源部退化及未利用土地整治工程重点实验室, 西安 710075

基金项目:

陕西省科技成果转移与推广计划(2021CGBX-03)

长安大学重点科研平台开放基金(300102351501)

详细信息

作者简介:
孟婷婷(1992-),女,工程师,主要研究方向为水土资源高效利用。1498643610@qq.com

通讯作者:
刘金宝(1989-),男,工程师,主要研究方向为土壤高光谱遥感。jinbaoliu@xaut.edu.cn

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- 文章访问数: 101
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- 被引次数: 0
出版历程
- 收稿日期: 2021-07-15
- 网络出版日期: 2023-03-23

SOIL HEAVY METAL POLLUTION AND ECOLOGICAL RISK ASSESSMENT OF URBAN GREEN LAND UNDER DIFFERENT MANAGEMENT METHODS

MENG Tingting^1,2,4,
LIU Jinbao^{1,2,3,4
, ,},
DONG Hao^1,2,4,
WANG Bo^1,2,4,
ZHANG Guojian¹

1. Shaanxi Provincial Land Engineering Construction Group Co., Ltd, Xi'an 710075, China;
2. Institute of Shaanxi Land Engineering and Technology Co., Ltd, Xi'an 710075, China;
3. Xi'an University of Technology, Xi'an 710048, China;
4. Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Land and Resources, Xi'an 710075, China

摘要

摘要: 土壤重金属污染是威胁城市生态环境的关键问题,为探究城市绿地不同管理措施下土壤修复效果,以城市不同管理措施绿地土壤为研究对象,测定复垦土地不同管理措施土壤中的Cr、Ni、Cu、Zn、As、Cd、Pb含量,并通过单因子污染指数法、内梅罗综合污染指数、地质累积指数法、潜在生态风险评价法定量分析了不同管理方式下土壤重金属污染及生态风险程度。结果表明:1)不同管理方式下土壤中Cr、Ni、Cu、Zn、As、Cd、Pb含量均高于陕西省背景值,不同管理方式下土壤重金属含量顺序为自然生长＞灌溉＞施肥;2)各重金属含量随土壤深度增加的变化趋势为逐渐减小或先减小后增加,且在20~40 cm深度取得最小值;3)Cd是造成该地区生态风险的主要元素,为轻污染,且是污染程度最高的元素。灌溉和施肥措施对土壤重金属污染修复效果优于自然生长,合理布设城市绿地措施有利于城市绿地土壤重金属污染修复、城市生态环境质量改善。
- 城市绿地 /
- 土壤修复 /
- 重金属污染 /
- 生态风险 /
- 管理方式
Abstract: Treatment of heavy metal pollution in urban ecological environment becomes an urgent environmental problem. In order to explore the difference of remediation effect of heavy metal pollution in urban green space under different management measures, experimental plots with different management methods were established as the research object, and soil samples were collected to determine the contents of Cr, Ni, Cu, Zn, As, Cd and Pb in soil. The quantitative analysis of soil heavy metal pollution and ecological risk under different management methods by combining the single factor pollution index method, the Nemerow comprehensive pollution index, the geo-accumulation index method and the potential ecological risk assessment method. The results showed: 1) the contents of Cr, Ni, Cu, Zn, As, Cd and Pb in soil under different management methods were higher than the background value of Shaanxi Province. The contents of heavy metals in soil under different management methods were in an order of natural growth > irrigation > fertilization; 2) the variation trend of heavy metal content with the increase of soil depth was gradually decreasing, or first decreasing and then increasing, and the minimum value was obtained at the depth of 20 to 40 cm; 3) Cd was the main element causing ecological risk in the region, which is in light pollution state but with highest pollution level. Irrigation and fertilization have better remediation effect on soil heavy metal pollution than natural growth. Reasonable layout of urban green space management measures is conducive to the remediation of soil heavy metal pollution in urban green space and improvement of urban ecological environment quality.
- urban green land /
- soil remediation /
- heavy metal pollution /
- ecological risk /
- regulative measure

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参考文献(28)

[1]	万凯,袁飞,李光顺,等.恩施州矿山周边耕地土壤重金属污染特征及评价[J].资源环境与工程,2020,34(增刊1):28-32.
[2]	窦韦强,安毅,秦莉,等.农田土壤重金属垂直分布迁移特征及生态风险评价[J].环境工程,2021,39(2):166-172.
[3]	于亚军,贺泽好.三种复垦类型煤矸山土壤重金属有效态含量及其影响因素分析[J].环境工程,2018,36(5):189-192.
[4]	KUPK D, KANIA M, PIETRZYKOWSKI M, et al. Multiple factors influence the accumulation of heavy metals (Cu, Pb, Ni, Zn) in forest soils in the vicinity of roadways[J]. Water, Air, & Soil Pollution, 2021, 232(5):141-148.
[5]	张传严,席北斗,张强,等.堆肥在土壤修复与质量提升的应用现状与展望[J].环境工程,2021,39(9):176-186.
[6]	孙厚云,卫晓锋,孙晓明,等.钒钛磁铁矿尾矿库复垦土地及周边土壤-玉米重金属迁移富集特征[J].环境科学,2021,42(3):1166-1176.
[7]	CHEN X Y, LI F, ZHANG J D, et al. Heavy metal pollution characteristics and health risk evaluation of soil around a tungsten-molybdenum mine in Luoyang, China[J]. Environmental Earth Sciences, 2021, 80(7):1-2.
[8]	李晓强,董炜华,宋扬.路域农田大型土壤动物对公路运营过程重金属累积的响应[J].地理研究,2020,39(12):2842-2854.
[9]	刘伟,张永波,贾亚敏.重金属污染农田植物修复及强化措施研究进展[J].环境工程,2019,37(5):29-33.
[10]	范拴喜,甘卓亭,李美娟,等.土壤重金属污染评价方法进展[J].中国农学通报,2010,26(17):310-315.
[11]	郭志娟,周亚龙,王乔林,等.雄安新区土壤重金属污染特征及健康风险[J].中国环境科学,2021,41(1):431-441.
[12]	姚文文,陈文德,黄钟宣,等.重庆市主城区土壤重金属形态特征及风险评价[J].西南农业学报,2021,34(1):159-164.
[13]	梁青芳,杨宁宁,高煜,等.宝鸡市不同功能区灰尘重金属污染特征与评价[J].环境工程,2019,37(10):216-221.
[14]	刘睿,聂庆娟,王晗.木本园林植物对土壤重金属的富集及修复效应研究进展[J].北方园艺,2021(8):117-124.
[15]	金明兰,王悦宏,姚峻程,等.植物对重金属污染土壤的生态修复[J].科学技术与工程,2020,20(32):13493-13496.
[16]	赵晓光,张亦扬,杜华栋.陕北矿区不同土地类型下土壤重金属污染评价[J].环境工程,2019,37(9):188-193.
[17]	ZHANG H L, ZHANG M, WU Y T, et al. Risk sources quantitative appointment of ecological environment and human health in farmland soils:a case study on Jiuyuan District in China[J]. Environmental Geochemistry and Health, 2021, 43(11):4789-4803.
[18]	张广映,吴琳娜,欧阳坤长, 等.都柳江上游沿岸喀斯特地区土壤重金属污染特征及风险评价[J].中国岩溶,2021,40(3):495-503.
[19]	王丹丹,林静雯,丁海涛,等.牛粪生物炭对重金属镉污染土壤的钝化修复研究[J].环境工程,2016,34(12):183-187.
[20]	HAQUE E, THORNE P S, NGHIEM A A, et al. Lead (Pb) concentrations and speciation in residential soils from an urban community impacted by multiple legacy sources[J]. Journal of Hazardous Materials, 2021, 416:125886.
[21]	赵超,赵杰,苏胜男,等.济南市城市绿地土壤重金属污染及生态风险评价[J].能源环境保护,2021,35(1):60-66.
[22]	王昭.ICP-MS法测定土壤6种重金属元素[J].西部大开发(土地开发工程研究),2019,4(4 ):22-26.
[23]	王昌宇,张素荣,刘继红,等.雄安新区某金属冶炼区土壤重金属污染程度及风险评价[J].中国地质,2021,48(6):1697-1709.
[24]	王国贤,陈宝林,任桂萍,等.内蒙古东部污灌区土壤重金属迁移规律的研究[J].农业环境科学学报,2007,26(增刊1):30-32.
[25]	MA W F, LIU F, CHENG X, et al. Environmental evaluation of the application of compost sewage sludge to landscaping as soil amendments:a field experiment on the grassland soils in Beijing[J]. Desalination and Water Treatment,2015,54 (4/5):1118-1126.
[26]	杨宾,罗会龙,刘士清,等.淹水对土壤重金属浸出行为的影响及机制[J].环境工程学报,2019,13(4):936-943.
[27]	董燕,孙璐,李海涛,等.雄安新区土壤重金属和砷元素空间分布特征及源解析[J].水文地质工程地质,2021,48(3):172-181.
[28]	陈锐,杜双杰,徐伟,等.南京城郊某典型退耕农用地土壤重金属含量特征与污染评价分析[J].环境工程,2022,40(3):102-110 ,165.