土壤调理剂联合芽孢杆菌施用对水稻吸收镉砷的影响

王秋莹; 苏天燕; 陆问; 于磊; 穆莉; 毛雪飞; 杨秋; 张治军; 张冬明; 刘文杰

doi:10.13198/j.issn.1001-6929.2023.08.10

土壤调理剂联合芽孢杆菌施用对水稻吸收镉砷的影响

doi: 10.13198/j.issn.1001-6929.2023.08.10

王秋莹^{1, 2,},
苏天燕^{1, 2},
陆问^{1, 2},
于磊^{1, 2},
穆莉³,
毛雪飞⁴,
杨秋^{1, 2},
张治军⁵,
张冬明⁵,
刘文杰^{1, 2, ,}

1.
海南大学生态与环境学院，海南省农林环境过程与生态调控重点实验室，海南海口　570228
2.
海南大学，海南省热带生态环境修复工程研究中心，海南海口　570228
3.
农业农村部环境保护科研监测所，天津　300191
4.
中国农业科学院农业质量标准与检测技术研究所，北京　100044
5.
海南省农业科学院农业环境与土壤研究所，海南省耕地保育重点实验室，海南海口　571199

基金项目: 海南省重点研发计划项目(No.ZDYF2021XDNY185)；海南省自然科学基金项目(No.321MS100)

详细信息

作者简介:
王秋莹（1997-），女，海南临高人，wangqiuying0409@163.com

通讯作者:
刘文杰(1981)，男，湖北仙桃人，教授，博士，博导，主要从事土壤重金属污染修复、全球变化与土壤碳氮循环等研究，liuwj@hainanu.edu.cn

中图分类号: X53
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- 文章访问数: 62
- HTML全文浏览量: 29
- PDF下载量: 18
- 被引次数: 0
出版历程
- 收稿日期: 2023-06-21
- 修回日期: 2023-07-24
- 网络出版日期: 2023-08-18

Effects of Soil Amendment Combined with Bacillus subtilis Application on Cadmium and Arsenic Uptake by Rice

WANG Qiuying^{1, 2
,},
SU Tianyan^{1, 2},
LU Wen^{1, 2},
YU Lei^{1, 2},
MU Li³,
MAO Xuefei⁴,
YANG Qiu^{1, 2},
ZHANG Zhijun⁵,
ZHANG Dongming⁵,
LIU Wenjie^{1, 2
, ,}

1.
Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, College of Ecology and Environment, Hainan University, Haikou 570228, China
2.
Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China
3.
Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
4.
Institute of Quality Standard and Testing Technology for Agro-Products of CAAS, Beijing 100044, China
5.
Institute of Agricultural Environment and Soil, Hainan Academy of Agricultural Sciences, Key Laboratory of Cultivated Land Conservation in Hainan Province, Haikou 571199, China

Funds: Key Research and Development Project of Hainan Province, China (No.ZDYF2021XDNY185); Natural Science Foundation of Hainan Province, China (No.321MS100)

摘要

摘要: 矿区农田重金属污染严重影响生态环境质量和农产品安全，重金属污染治理修复研究是矿区农田土壤安全利用的前提. 为探究不同土壤调理剂联合芽孢杆菌施用对矿区土壤镉(Cd)和砷(As)的修复效果，采用田间小区试验的方法，设置对照处理(CK)、单一/复合施用芽孢杆菌(J)以及两种土壤调理剂(氧化钙镁肥，D1；硅钙镁钾肥，D2)共8个处理(CK、J、D1、D2、J+D1、J+D2、D1+D2和J+D1+D2)，分析不同处理对土壤化学性质、土壤有效态Cd和As含量、水稻产量以及水稻各部分Cd和As含量的影响. 结果表明：①除菌剂外，单一/复合施用两种土壤调理剂能提高土壤pH，对比CK处理，其余处理组均能提高阳离子交换量(CEC)、有效磷(AvP)含量和有效硅(Si)含量. ②单一/复合施用土壤调理剂和菌剂均同时降低了土壤有效态Cd和As含量，二者降幅分别为5.46%~47.53%和5.32%~25.49%，同时有效态Cd和As含量的降幅以D1+D2处理最大，D2处理次之，菌剂(J)单独施用的降幅最小. ③D2、J+D1、J+D2、D1+D2和J+D1+D2这5种处理均能显著降低糙米和精米中Cd的含量，J处理和J+D1+D2处理均能显著降低精米As含量，达到《食品安全国家标准食品中污染物限量》(GB 2762—2022)中的食品安全生产标准. ④试验材料主要通过改变土壤pH、CEC和有效Si含量来影响土壤Cd和As的生物有效性，以及水稻对Cd和As的吸收和转运. 研究显示，硅钙镁钾肥(D2处理)无论单施还是联合施用均能显著降低糙米Cd含量，达到《食品安全国家标准食品中污染物限量》(GB 2762—2022)中的食品安全标准，但其对糙米As含量无显著影响，因此硅钙镁钾肥可为单一Cd污染土壤的水稻安全生产提供有效的解决途径.
- 土壤调理剂 /
- 枯草芽孢杆菌 /
- 镉砷复合污染 /
- 镉砷吸收
Abstract: Heavy metal pollution in farmland in mining areas seriously affects the ecological and environmental quality and the safety of agricultural products. Conducting research on the remediation and restoration of farmland soil contaminated with cadmium (Cd) and arsenic (As) has become a prerequisite for the safe utilization of farmland soil in these areas. In order to explore the remediation effects of different soil amendments in combination with Bacillus subtilis on the remediation of Cd and As in mining areas, a field plot experiment was conducted, including CK treatment and single or combined application of Bacillus subtilis (J) and two soil amendment (oxycalcium-magnesium amendment, D1; Si-Ca-Mg-K amendment, D2), with a total of 8 treatments (CK, J, D1, D2, J+D1, D1+D2, D1+D2, and J+D2). The effects of different treatments on soil chemical properties, soil available Cd and As content, rice yield, and Cd and As content in various parts of rice were studied. The results showed that: (1) Apart from Bacillus subtilis, single or combined application of two soil amendments could increase the soil pH. Single or combined application of soil amendment with the Bacillus subtilis could increase the cation exchange capacity (CEC) and available phosphorus (AvP) and available silicon. (2) Single or combined application of soil amendment and Bacillus could reduce the available Cd and As contents in soil from 5.46% to 47.53% and from 5.32% to 25.49%, respectively. The greatest reduction in available Cd and As was achieved by the D1+D2 treatment, followed by the D2 treatment, while the Bacillus (J) alone had the least effect. (3) Single application of D2 treatment or combined application of soil amendment with Bacillus (J+D1, J+D2, D1+D2 and J+D1+D2) could significantly reduce the Cd content in brown rice and polished rice. Single application of Bacillus (J) and the combined application of all three materials (J+D1+D2) could significantly reduce the As content in polished rice, reaching the food safety production standard in the National Standard for Food Safety Limit of Pollutants in Food (GB 2762-2022). (4) The remediation test materials in the experiments mainly affected the availability of soil Cd/As and the absorption and transportation of Cd and As in rice by changing the soil pH, CEC and available silicon content. The results of research show that both single and combined application of Si-Ca-Mg-K amendment (D2) can significantly reduce the Cd content in brown rice and meet the national food safety standards. However, it has no significant impact on the As content in brown rice, reaching the food safety standard in the National Standard for Food Safety Limit of Pollutants in Food (GB 2762-2022). Therefore, Si-Ca-Mg-K amendment can provide an effective solution for the safe production of rice in soil polluted by a single Cd.
- soil amendment /
- Bacillus subtilis /
- cadmium and arsenic combined pollution /
- cadmium and arsenic absorption

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图 1 单一/联合施用不同土壤调理剂和菌剂对土壤化学性质的影响

注：不同小写字母表示不同处理间差异显著(P<0.05)，下同.

Figure 1. Effects of single/combined application of different soil amendment and Bacillus subtilis on soil chemical properties

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图 2 单一/联合施用不同土壤调理剂和菌剂对土壤有效态Cd和有效态As含量的影响

Figure 2. Effects of single/combined application of different soil amendments and Bacillus subtilis on the content of available Cd and available As in soil

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图 3 土壤有效态Cd和As含量与影响因子之间的拟合结果

Figure 3. Fitting relationship between content of soil available Cd and As with influence factors

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图 4 单一/联合施用不同调理剂和菌剂对水稻各部位Cd、As含量的影响

注：不同小写字母表示同一个指标下，不同处理间差异显著(P<0.05).

Figure 4. Effects of single/combined application of different soil amendments and Bacillus subtilis on the content Cd and As in different organs of rice

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图 5 水稻糙米Cd和As含量与各项影响因子的相关性分析

注：*表示P≤0.05，**表示P≤0.01，***表示P≤0.001.

Figure 5. Correlation analysis between Cd and As contents in brown rice and various influencing factors

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表 1 试验设计与材料用量

Table 1. Experimental design and material consumption

处理组编号	试验材料	材料用量
CK	对照
J	微生物菌剂	200 mL/亩，稀释15倍
D1	D1土壤调理剂	100~150 kg/亩
D2	D2土壤调理剂	100~150 kg/亩
J+D1	菌剂+D1土壤调理剂	菌剂200 mL/亩，稀释15倍；D1调理剂100~150 kg/亩
J+D2	菌剂+D2土壤调理剂	菌剂200 mL/亩，稀释15倍；D2调理剂100~150 kg/亩
D1+D2	D1土壤调理剂+D2土壤调理剂	D1和D2调理剂各100~150 kg/亩
J+D1+D2	菌剂+D1土壤调理剂+D2土壤调理剂	菌剂200 mL/亩，稀释15倍；D1和D2调理剂各100~150 kg/亩
注：1亩≈666.67 m².

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表 2 单一/联合施用不同土壤调理剂和菌剂对水稻产量的影响

Table 2. Effects of single/combined application of different soil amendments and Bacillus subtilis on rice yield

处理组	水稻产量/(kg/hm²)	增产率/%
CK	7 560±360^a
J	8 040±787^a	6.3
D1	7 680±120^a	1.6
D2	7 920±550^a	4.8
J+D1	8 160±523^a	7.9
J+D2	7 720±288^a	2.1
D1+D2	6 840±80^a	−9.5
J+D1+D2	8 040±840^a	6.3

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表 3 不同处理对水稻各部位Cd、As富集和转运的影响

Table 3. Accumulation coefficient and transport coefficient of Cd and As in the rice tissues as affected by different treatments

重金属	处理组	富集系数(BCF)					转运系数(TF)
重金属	处理组	根	茎	叶	壳	糙米	根-茎	茎-叶	茎-糙米
Cd	CK	17.18±2.44^a	2.14±0.28^a	0.31±0.09^a	0.18±0.02^a	0.17±0.02^a	0.13±0.04^a	0.14±0.02^ab	0.08±0.01^abc
	J	12.79±0.34a^bc	1.71±0.34^ab	0.25±0.05^abc	0.13±0.02^ab	0.15±0.03^ab	0.13±0.02^a	0.15±0.01^ab	0.09±0.01^ab
	D1	16.86±1.22^ab	1.74±0.36^ab	0.28±0.03^ab	0.16±0.04^a	0.11±0.02^bc	0.07±0.03^a	0.21±0.01^a	0.10±0.00^a
	D2	11.21±1.48^c	1.19±0.19^bc	0.18±0.05^abc	0.07±0.01^c	0.09±0.01^c	0.12±0.04^a	0.17±0.04^ab	0.08±0.01^abc
	J+D1	10.58±1.93^c	0.83±0.16^c	0.17±0.03^abc	0.07±0.02^c	0.07±0.01^c	0.11±0.04^a	0.18±0.04^ab	0.08±0.01^abc
	J+D2	11.74±1.84^bc	1.06±0.07^bc	0.13±0.03^bc	0.04±0.00^c	0.07±0.01^c	0.09±0.01^a	0.12±0.02^ab	0.06±0.01^bc
	D1+D2	8.84±1.13^c	1.47±0.23^abc	0.19±0.03^abc	0.08±0.02^bc	0.08±0.01^c	0.12±0.01^a	0.14±0.03^ab	0.06±0.01^c
	J+D1+D2	8.33±0.19^c	1.25±0.21^bc	0.12±0.02^c	0.05±0.01^c	0.07±0.00^c	0.14±0.02^a	0.10±0.01^b	0.06±0.00^c
	CK	12.18±1.55^a	0.31±0.02^a	0.76±0.04^a	1.42±0.17^a	0.02±0.00^a	0.02±0.00^d	2.76±0.43^a	0.06±0.00^ab
	J	9.19±1.41^abc	0.30±0.03^a	0.56±0.03^b	1.14±0.06^ab	0.01±0.00^a	0.04±0.00^bcd	1.86±0.25^ab	0.05±0.00^b
	D1	5.41±0.81^c	0.26±0.02^a	0.37±0.06^c	1.47±0.23^a	0.01±0.00^a	0.06±0.01^a	1.33±0.32^b	0.05±0.01^b
As	D2	7.82±0.30^bc	0.24±0.05^a	0.40±0.01^bc	1.13±0.09^ab	0.01±0.00^a	0.03±0.01^cd	1.68±0.42^ab	0.06±0.01^ab
	J+D1	7.29±0.72^bc	0.29±0.04^a	0.50±0.06^bc	1.28±0.05^ab	0.01±0.00^a	0.04±0.00^bc	1.79±0.35^ab	0.05±0.00^b
	J+D2	10.03±0.52^ab	0.29±0.01^a	0.50±0.07^bc	1.22±0.14^ab	0.01±0.00^a	0.03±0.00^bcd	1.75±0.29^ab	0.04±0.00^b
	D1+D2	10.09±2.18^ab	0.20±0.05^a	0.39±0.08^bc	0.86±0.09^b	0.02±0.00^a	0.02±0.00^d	1.91±0.13^ab	0.07±0.00^a
	J+D1+D2	6.23±1.16^bc	0.30±0.06^a	0.41±0.06^bc	1.11±0.16^ab	0.01±0.00^a	0.05±0.01^ab	1.44±0.20^b	0.04±0.00^b
注：不同字母表示不同处理组同一部位的差异显著(P<0.05)，下同.

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土壤调理剂联合芽孢杆菌施用对水稻吸收镉砷的影响

doi: 10.13198/j.issn.1001-6929.2023.08.10

作者简介:
王秋莹（1997-），女，海南临高人，wangqiuying0409@163.com

通讯作者:
刘文杰(1981)，男，湖北仙桃人，教授，博士，博导，主要从事土壤重金属污染修复、全球变化与土壤碳氮循环等研究，liuwj@hainanu.edu.cn

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Effects of Soil Amendment Combined with Bacillus subtilis Application on Cadmium and Arsenic Uptake by Rice

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土壤调理剂联合芽孢杆菌施用对水稻吸收镉砷的影响

doi: 10.13198/j.issn.1001-6929.2023.08.10

作者简介: 王秋莹（1997-），女，海南临高人，wangqiuying0409@163.com

通讯作者: 刘文杰(1981)，男，湖北仙桃人，教授，博士，博导，主要从事土壤重金属污染修复、全球变化与土壤碳氮循环等研究，liuwj@hainanu.edu.cn

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Effects of Soil Amendment Combined with Bacillus subtilis Application on Cadmium and Arsenic Uptake by Rice

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出版历程

目录

作者简介:
王秋莹（1997-），女，海南临高人，wangqiuying0409@163.com

通讯作者:
刘文杰(1981)，男，湖北仙桃人，教授，博士，博导，主要从事土壤重金属污染修复、全球变化与土壤碳氮循环等研究，liuwj@hainanu.edu.cn