Evaluation of Pollution Risk and Source Analysis of Heavy Metals in Greenhouse Soils in Wumeng Mountain Area， Guizhou Province

doi:10.13304/j.nykjdb.2021.0890

Abstract

Abstract:

To evaluate the degree of heavy metal pollution and ecological risks in the soil of vegetable greenhouses in Wumeng mountain area of Guizhou province， 4 vegetable bases in Wumeng mountain area of Guizhou province was taken as the research object. 144 soil samples form greenhouse field and 68 soil samples from nearby open field were used to determined the pH and contents of Cd， Hg， As， Pb， Cr， Cu， Zn and Ni. The degree of soil heavy metal pollution and ecological risk in the study area were evaluated. Multivariate statistics and profile differentiation were used to comprehensively analyze the main sources of heavy metal pollution in the topsoil of greenhouse in the study area. The results showed that vegetables cultivation in greenhouse fields accelerated soil acidification. Soil pH in greenhouse decreased 0.24 compared with open field soil. In the study area， the percentage of heavily contaminated soil sample points in topsoil of the greenhouse and open field were 53.57% and 42.86%， respectively， and the percentage of sample points with medium or higher ecological risk were 82.14% and 57.14%， respectively. The Cd was the most important ecological risk factor in the study area. In topsoil of the greenhouse， the As， Pb， Cr， Cu and Ni were mainly derived from the weathering of parent materials， while the Cd， Hg and Zn were mainly derived from the weathering of parent materials and agricultural inputs. In conclusion， the degree of heavy metal contamination in the greenhouse was higher than that in the open field， so the input of exogenous Cd， Hg and Zn should be controlled and the monitoring of heavy metal in agricultural products should be strengthened in greenhouse fields of study area， which provided theoretical support for the safe production of agricultural products in the Wumeng mountains of Guizhou.

Key words: greenhouse soil, heavy metal, pollution risk, principal component analysis

摘要：

为评价贵州乌蒙山区设施蔬菜基地土壤重金属污染程度和生态风险，选取研究区种植面积较大的4个设施蔬菜基地为研究对象，共采集144个大棚土样和68个露天土样，测定土壤pH及Cd、Hg、As、Pb、Cr、Cu、Zn和Ni含量，分析研究区设施菜地土壤重金属的污染程度和生态风险，并运用多元统计（简单相关分析和主成分分析）与剖面分异法综合分析研究区设施菜地耕层土壤重金属污染的主要来源。结果表明，研究区设施蔬菜种植会加速土壤酸化，与露天菜地土壤相比，设施菜地耕层土壤pH降低了0.24。研究区设施菜地与露天菜地耕作层土壤重度污染样点占比分别为53.57%与42.86%，中等以上生态风险样点占比分别为82.14%与57.14%，土壤Cd是研究区最主要的污染因子与生态风险因子。研究区设施菜地耕层土壤中As、Pb、Cr、Cu、Ni主要来源于成土母质风化，Cd、Hg、Zn主要来源于成土母质风化与农业投入品。综上所述，研究区设施菜地受重金属污染程度高于露天菜地，尤其应控制外源Cd、Hg、Zn的投入，并加强农产品重金属监测，为贵州乌蒙山区设施农产品安全生产提供了理论支撑。

关键词: 设施土壤, 重金属, 污染风险, 主成分分析

CLC Number:

Guanqun CHAI, Guihua LIU, Wei ZHOU, Xiujin ZHANG, Longpin LI, Chengwu FAN. Evaluation of Pollution Risk and Source Analysis of Heavy Metals in Greenhouse Soils in Wumeng Mountain Area， Guizhou Province[J]. Journal of Agricultural Science and Technology, 2022, 24(8): 144-153.

柴冠群, 刘桂华, 周玮, 张秀锦, 李龙品, 范成五. 贵州乌蒙山区设施土壤重金属污染风险评估与来源解析[J]. 中国农业科技导报, 2022, 24(8): 144-153.

Figures/Tables 7

References 28

1	周丕东,崔嵬,詹瑜,等.贵州乌蒙山区农村扶贫开发对策研究[J].贵州民族研究,2012,33(2):63-68.
	ZHOU P D, CUI W, ZHAN Y, et al.. Strategies for rural poverty alleviation of Guizhou Wumeng mountainous region based on SWOT analysis [J]. Guizhou Ethnic Stud., 2012, 33(2):63-68.
2	柴冠群,秦松,范成五,等.贵州设施农业发展现状及问题分析[J].现代园艺,2018(17):45-47.
3	柴冠群,杨娇娇,范成五,等.镉高地质背景区设施栽培对土壤与蔬菜镉积累的影响[J].土壤通报,2020,51(6):1489-1495.
	CHAI G Q, YANG J J, FAN C W, et al.. Impact of greenhouse cultivation on the accumulation of cadmium in soils and vegetables from an area with a high geochemical background of cadmium [J]. Chin. J. Soil Sci., 2020, 51(6):1489-1495.
4	敖明,柴冠群,范成五,等.稻田土壤和稻米中重金属潜在污染风险评估与来源解析[J].农业工程学报,2019,35(6):198-205, 324.
	AO M, CHAI G Q, FAN C W, et al.. Evaluation of potential pollution risk and source analysis of heavy metals in paddy soil and rice [J]. Trans. Chin. Soc. Agric. Eng., 2019, 35(6):198-205, 324.
5	徐笠,陆安祥,田晓琴,等.典型设施蔬菜基地重金属的累积特征及风险评估[J].中国农业科学,2017,50(21):4149-4158.
	XU L, LU A X, TIAN X Q, et al.. Accumulation characteristics and risk assessment of heavy metals in typical greenhouse vegetable bases [J]. Sci. Agric. Sin., 2017, 50(21):4149-4158.
6	TIAN K, HU W, XING Z, et al.. Determination and evaluation of heavy metals in soils under two different greenhouse vegetable production systems in eastern China [J]. Chemosphere, 2016, 165(12):555-563.
7	卢维宏,张乃明,包立,等.我国设施栽培连作障碍特征与成因及防治措施的研究进展[J].土壤,2020,52(4):651-658.
	LU W H, ZHANG N M, BAO L, et al.. Study advances on characteristics, causes and control measures of continuous cropping obstacles of facility cultivation in China [J]. Soil, 2020, 52(4):651-658.
8	张玉韩,侯华丽,沈悦,等.乌蒙山片区矿产资源开发功能分区及扶贫政策探索[J].资源科学,2018,40(9):1716-1729.
	ZHANG Y H, HOU H L, SHEN Y, et al.. Study on the functional division of mineral resources development and poverty alleviation policy in Wumeng mountain area [J]. Resour. Sci., 2018, 40(9):1716-1729.
9	王海峰,张元福,张中可.贵州锌工业现状及发展对策[J].贵州科学,2000,18(3):229-233.
	WANG H F, ZHANG Y F, ZHANG Z K. The current situation of and counterpart measures for the zinc industry of Guizhou [J]. Guizhou Sci., 2000, 18(3):229-233.
10	朱恒亮,刘鸿雁,龙家寰,等.贵州省典型污染区土壤重金属的污染特征分析[J].地球与环境,2014,42(4):505-512.
	ZHU H L, LIU H Y, LONG J H, et al.. Pollution characteristics of heavy metals in soils in typical contaminated areas, Guizhou province [J]. Earth Environ., 2014, 42(4):505-512.
11	章明奎,王浩,张慧敏.浙东海积平原农田土壤重金属来源辨识[J].环境科学学报,2008,28(10):1946-1954.
	ZHANG M K, WANG H, ZHANG H M, et al.. Distinguishing different sources of heavy metals in soils on the coastal plain of Eastern Zhejiang province [J]. J. Environ. Sci., 2008, 28(10):1946-1954.
12	柴冠群,杨娇娇,刘桂华,等.高镉地质背景区设施菜地土壤镉生物有效性主控因子分析[J].生态与农村环境学报,2021,37(7):917-923.
	CHAI G Q, YANG J J, LIU G H, et al.. Analysis of dominant control factors of cadmium phytoavailability in greenhouse soils with a high Cadmium geological background [J]. J. Ecol. Rural Environ., 2021, 37(7):917-923.
13	鲍士旦.土壤农业化学分析[M].北京:中国农业科技出版社,2000:163-168.
14	生态环境部. 土壤环境质量农用地土壤污染风险管控标准: [S].北京:中国标准出版社,2018.
15	HAKANSON L. An ecological risk index for aquatic pollution control. a sedimentological approach [J]. Water Res., 1980, 14(8):975-1001.
16	周艳,陈樯,邓绍坡,等.西南某铅锌矿区农田土壤重金属空间主成分分析及生态风险评价[J].环境科学,2018,39(6):2884-2892.
	ZHOU Y, CHEN Q, DENG S P, et al.. Principal component analysis and ecological risk assessment of heavy metals in farmland soils around a Pb-Zn mine in Southwestern China [J]. Environ. Sci., 2018, 39(6):2884-2892.
17	周海燕,徐明岗,蔡泽江,等.湖南祁阳县土壤酸化主要驱动因素贡献解析[J].中国农业科学,2019,52(8):1400-1412.
	ZHOU H Y, XU M G, CAI Z J, et al.. Quantitative analysis of driving-factors of soil acidification in Qiyang county, Hunan province [J]. Sci. Agric. Sin., 2019, 52(8):1400-1412.
18	陈玉鹏,梁东丽,刘中华,等.大棚蔬菜土壤重金属污染及其控制的研究进展与展望[J].农业环境科学学报,2018,37(1):9-17.
	CHEN Y P, LIANG D L, LIU Z H, et al.. Analysis of present situation and control of heavy metal pollution in vegetable greenhouse soils [J]. J. Agro-Environ. Sci., 2018,37(1):9-17.
19	黄绍文,唐继伟,李春花.不同栽培方式菜田耕层土壤重金属状况[J].植物营养与肥料学报,2016,22(3):707-718.
	HUANG S W, TANG J W, LI C H. Status of heavy metals in vegetable soils under different patterns of land use [J]. J. Plant Nutr. Fert., 2016, 22(3):707-718.
20	刘荣乐,李书田,王秀斌,等.我国商品有机肥料和有机废弃物中重金属的含量状况与分析[J].农业环境科学学报,2005,24(2):392-397.
	LIU R L, LI S T, WANG X B, et al.. Contents of heavy metal in commercial organic fertilizers and orgnic wastes [J]. J. Agro-Environ. Sci., 2005, 24(2):392-397.
21	黄治平,徐斌,张克强,等.连续四年施用规模化猪场猪粪温室土壤重金属积累研究[J].农业工程学报,2007,23(11):239-244.
	HUANG Z P, XU B, ZHANG K Q, et al.. Accumulation of heavy metals in the four years’ continual swine manure-applied greenhouse soils [J]. Trans. Chin. Soc. Agric. Eng., 2007, 23(11):239-244.
22	姜萍,金盛杨,郝秀珍,等.重金属在猪饲料-粪便-土壤-蔬菜中的分布特征研究[J].农业环境科学学报,2010,29(5):942-947.
	JIANG P, JIN S Y, HAO X Z, et al.. Distribution characteristics of heavy metals in feeds, pig manures, soils and vegetables [J]. J. Agro-Environ. Sci., 2010,29(5):942-947.
23	关天霞,李彩霞,马国泰,等.连续施用有机肥对菜田土壤Cu和Zn积累及辣椒产量品质的影响[J].水土保持学报,2020,34(3):219-225.
	GUAN T X, LI C X, MA G T, et al.. Effects of continuous application of organic fertilizer on Cu and Zn accumulation in soil and the yield and quality of pepper (Capsicum Annuum L.) [J]. J. Soil Water Conserv., 2020, 34(3):219-225.
24	GRAMATICA P, BATTAINI F, GIANI E, et al.. Multivariate analysis of heavy metal concentrations in soils and mosses of two North Italy regions [J]. Fresenins Environ. Bull., 2006, 15(8):731-737.
25	YANG L Q, HUANG B, HU W Y, et al.. Assessment and source identification of trace metals in the soils of greenhouse vegetable production in Eastern China [J]. Ecotoxicol. Environ. Safety, 2013, 97(11):204-209.
26	XU L, LU A X, WANG J H, et al.. Accumulation status, sources and phytoavailability of metals in greenhouse vegetable production systems in Beijing, China [J]. Ecotoxicol. Environ. Safety, 2015, 122:214-220.
27	SUN C, LIU J, WANG Y, et al.. Multivariate and geostatistical analyses of the spatial distribution and sources of heavy metals in agricultural soil in Dehui, Northeast China [J]. Chemosphere, 2013, 92(5):517-523.
28	郑睛之,王楚栋,王诗涵,等.典型小城市土壤重金属空间异质性及其风险评价:以临安市为例[J].环境科学,2018,39(6):2875-2883.
	ZHENG J Z, WANG C D, WANG S H, et al.. Spatial variation of soil heavy metals in Lin’an city and its potential risk evaluation [J]. Environ. Sci., 2018, 39(6):2875-2883.

土地利用方式Land use type	土层 Soil layer/cm	统计项 Statistical item	pH	Cd/ （mg·kg^-1）	Hg/ （mg·kg^-1）	As/ （mg·kg^-1）	Pb/ （mg·kg^-1）	Cr/ （mg·kg^-1）	Cu/ （mg·kg^-1）	Zn/ （mg·kg^-1）	Ni/ （mg·kg^-1）
设施菜地 Green house	0—20	平均 Mean	5.92	0.94	0.23	25.88	119.15	189.16	121.52	542.41	85.08
		标准差 Standard deviation	0.64	0.61	0.12	17.03	103.54	51.75	74.46	558.78	26.64
		最大值 Maximum	7.43	2.28	0.73	64.10	431.85	279.60	261.95	1 941.35	126.75
		最小值 Minimum	5.44	0.21	0.13	2.97	28.55	119.55	32.60	136.05	42.80
	20—40	平均 Mean	6.35	0.85	0.25	26.09	118.72	185.24	118.08	490.88	85.04
		标准差 Standard deviation	0.69	0.62	0.11	17.35	141.92	43.59	73.38	515.99	28.49
		最大值 Maximum	7.49	2.25	0.56	64.20	413.55	260.05	285.90	1 802.05	140.05
		最小值 Minimum	4.92	0.16	0.13	2.40	24.95	114.60	29.90	103.85	39.00
露天菜地 Open field	0—20	平均 Mean	6.16	0.81	0.22	21.51	142.83	200.04	108.58	551.76	87.54
		标准差 Standard deviation	0.92	0.71	0.11	20.89	187.45	47.11	76.57	679.14	31.13
		最大值 Maximum	7.45	1.84	0.36	53.00	472.20	265.65	254.10	1 728.90	127.10
		最小值 Minimum	5.19	0.17	0.10	3.23	28.80	134.05	34.95	110.00	43.95
	20—40	平均 Mean	6.37	0.80	0.30	28.06	158.06	186.22	112.34	589.97	84.32
		标准差 Standard deviation	0.89	0.51	0.14	21.79	172.52	51.37	94.78	571.84	33.35
		最大值 Maximum	7.37	1.41	0.47	53.80	393.60	246.10	250.75	1 224.65	122.35
		最小值 Minimum	5.01	0.23	0.10	2.86	25.80	133.80	27.55	128.30	46.75

土地利用方式Land use type	土层 Soil layer/cm	统计项 Statistical item	pH	Cd/ （mg·kg^-1）	Hg/ （mg·kg^-1）	As/ （mg·kg^-1）	Pb/ （mg·kg^-1）	Cr/ （mg·kg^-1）	Cu/ （mg·kg^-1）	Zn/ （mg·kg^-1）	Ni/ （mg·kg^-1）
设施菜地 Green house	0—20	平均 Mean	5.92	0.94	0.23	25.88	119.15	189.16	121.52	542.41	85.08
		标准差 Standard deviation	0.64	0.61	0.12	17.03	103.54	51.75	74.46	558.78	26.64
		最大值 Maximum	7.43	2.28	0.73	64.10	431.85	279.60	261.95	1 941.35	126.75
		最小值 Minimum	5.44	0.21	0.13	2.97	28.55	119.55	32.60	136.05	42.80
	20—40	平均 Mean	6.35	0.85	0.25	26.09	118.72	185.24	118.08	490.88	85.04
		标准差 Standard deviation	0.69	0.62	0.11	17.35	141.92	43.59	73.38	515.99	28.49
		最大值 Maximum	7.49	2.25	0.56	64.20	413.55	260.05	285.90	1 802.05	140.05
		最小值 Minimum	4.92	0.16	0.13	2.40	24.95	114.60	29.90	103.85	39.00
露天菜地 Open field	0—20	平均 Mean	6.16	0.81	0.22	21.51	142.83	200.04	108.58	551.76	87.54
		标准差 Standard deviation	0.92	0.71	0.11	20.89	187.45	47.11	76.57	679.14	31.13
		最大值 Maximum	7.45	1.84	0.36	53.00	472.20	265.65	254.10	1 728.90	127.10
		最小值 Minimum	5.19	0.17	0.10	3.23	28.80	134.05	34.95	110.00	43.95
	20—40	平均 Mean	6.37	0.80	0.30	28.06	158.06	186.22	112.34	589.97	84.32
		标准差 Standard deviation	0.89	0.51	0.14	21.79	172.52	51.37	94.78	571.84	33.35
		最大值 Maximum	7.37	1.41	0.47	53.80	393.60	246.10	250.75	1 224.65	122.35
		最小值 Minimum	5.01	0.23	0.10	2.86	25.80	133.80	27.55	128.30	46.75

重金属 Heavy metal	土地利用方式 Land use type	占比Proportion/%
重金属 Heavy metal	土地利用方式 Land use type	清洁 Clean	尚清洁 Approaching pollution	轻度污染 Slight pollution	中度污染 Medium pollution	重度污染 Heavy pollution
Cd	设施菜地 Green house	3.57	10.72	7.14	17.86	60.71
Cd	露天菜地Open field	28.57	0.00	28.57	0.00	42.86
Hg	设施菜地 Green house	28.57	28.57	32.14	3.58	7.14
Hg	露天菜地 Open field	42.86	14.28	42.86	0.00	0.00
As	设施菜地 Green house	46.43	3.57	46.43	3.57	0.00
As	露天菜地 Open field	57.14	0.00	42.86	0.00	0.00
Pb	设施菜地 Green house	28.57	42.86	0.00	0.00	28.57
Pb	露天菜地 Open field	57.14	0.00	14.29	0.00	28.57
Cr	设施菜地 Green house	0.00	35.71	64.29	0.00	0.00
Cr	露天菜地 Open field	0.00	42.86	57.14	0.00	0.00
Cu	设施菜地 Green house	7.14	35.72	17.86	28.57	10.71
Cu	露天菜地 Open field	14.29	57.14	0.00	14.28	14.29
Zn	设施菜地 Green house	25.00	17.86	28.57	0.00	28.57
Zn	露天菜地 Open field	42.86	28.57	0.00	0.00	28.57
Ni	设施菜地 Green house	0.00	0.00	57.15	35.71	7.14
Ni	露天菜地 Open field	0.00	0.00	42.86	57.14	0.00
N	设施菜地 Green house	0.00	0.00	21.43	25.00	53.57
N	露天菜地 Open field	0.00	0.00	42.86	14.28	42.86

重金属 Heavy metal	土地利用方式 Land use type	占比Proportion/%
重金属 Heavy metal	土地利用方式 Land use type	清洁 Clean	尚清洁 Approaching pollution	轻度污染 Slight pollution	中度污染 Medium pollution	重度污染 Heavy pollution
Cd	设施菜地 Green house	3.57	10.72	7.14	17.86	60.71
Cd	露天菜地Open field	28.57	0.00	28.57	0.00	42.86
Hg	设施菜地 Green house	28.57	28.57	32.14	3.58	7.14
Hg	露天菜地 Open field	42.86	14.28	42.86	0.00	0.00
As	设施菜地 Green house	46.43	3.57	46.43	3.57	0.00
As	露天菜地 Open field	57.14	0.00	42.86	0.00	0.00
Pb	设施菜地 Green house	28.57	42.86	0.00	0.00	28.57
Pb	露天菜地 Open field	57.14	0.00	14.29	0.00	28.57
Cr	设施菜地 Green house	0.00	35.71	64.29	0.00	0.00
Cr	露天菜地 Open field	0.00	42.86	57.14	0.00	0.00
Cu	设施菜地 Green house	7.14	35.72	17.86	28.57	10.71
Cu	露天菜地 Open field	14.29	57.14	0.00	14.28	14.29
Zn	设施菜地 Green house	25.00	17.86	28.57	0.00	28.57
Zn	露天菜地 Open field	42.86	28.57	0.00	0.00	28.57
Ni	设施菜地 Green house	0.00	0.00	57.15	35.71	7.14
Ni	露天菜地 Open field	0.00	0.00	42.86	57.14	0.00
N	设施菜地 Green house	0.00	0.00	21.43	25.00	53.57
N	露天菜地 Open field	0.00	0.00	42.86	14.28	42.86

重金属 Heavy metal	土地利用方式 Land use type	占比Proportion/%
重金属 Heavy metal	土地利用方式 Land use type	轻微风险 Slight risk	中等风险 Medium risk	较强风险 Relatively strong risk	很强风险 Strong risk	极强风险 Extremely strong risk
Cd	设施菜地 Green house	17.85	17.86	42.86	21.43	0.00
Cd	露天菜地 Open field	57.14	0.00	28.57	14.29	0.00
Hg	设施菜地 Green house	57.15	32.14	7.14	3.57	0.00
Hg	露天菜地 Open field	57.14	42.86	0.00	0.00	0.00
As	设施菜地 Green house	100.00	0.00	0.00	0.00	0.00
As	露天菜地 Open field	100.00	0.00	0.00	0.00	0.00
Pb	设施菜地 Green house	89.29	10.71	0.00	0.00	0.00
Pb	露天菜地 Open field	85.71	14.29	0.00	0.00	0.00
Cr	设施菜地 Green house	100.00	0.00	0.00	0.00	0.00
Cr	露天菜地 Open field	100.00	0.00	0.00	0.00	0.00
Cu	设施菜地 Green house	100.00	0.00	0.00	0.00	0.00
Cu	露天菜地 Open field	100.00	0.00	0.00	0.00	0.00
Zn	设施菜地 Green house	100.00	0.00	0.00	0.00	0.00
Zn	露天菜地 Open field	100.00	0.00	0.00	0.00	0.00
Ni	设施菜地 Green house	100.00	0.00	0.00	0.00	0.00
Ni	露天菜地 Open field	100.00	0.00	0.00	0.00	0.00
RI	设施菜地 Green house	17.86	50.00	32.14	0.00	0.00
RI	露天菜地 Open field	42.86	28.57	28.57	0.00	0.00