Influence and Mechanism of Fertilization and Irrigation of Heavy Metal Accumulation in Salinized Soils

被引:0
|
作者
Yu, Dandan [1 ,2 ]
Miao, Qingfeng [1 ,2 ]
Shi, Haibin [1 ,2 ]
Feng, Zhuangzhuang [1 ,2 ]
Feng, Weiying [3 ]
Li, Zhen [1 ,2 ]
Goncalves, Jose Manuel [4 ]
机构
[1] Inner Mongolia Agr Univ, Coll Water Conservancy & Civil Engn, Hohhot 010018, Peoples R China
[2] High Efficiency Water Saving Technol & Equipment &, Hohhot 010018, Peoples R China
[3] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
[4] Polytech Inst Coimbra, CERNAS Res Ctr Nat Resources Environm & Soc, Coimbra Agr Sch, P-3045601 Coimbra, Portugal
来源
AGRICULTURE-BASEL | 2024年 / 14卷 / 10期
基金
中国国家自然科学基金;
关键词
saline-alkali soil; fertilizer; irrigation volume amount; heavy metal; microorganism; ORGANIC-MATTER; CROP PRODUCTION; MANURE; NUTRIENT; WATER; BIOAVAILABILITY; MANAGEMENT; CHEMISTRY;
D O I
10.3390/agriculture14101694
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The impact of fertilization and irrigation on heavy metal accumulation in saline-alkali soil and its underlying mechanisms are critical issues given the constraints that soil salinization places on agricultural development and crop quality. This study addressed these issues by investigating the effects of adjusting organic fertilizer types, proportions, and irrigation volumes on the physicochemical properties of lightly to moderately saline-alkali soils and analyzing the interaction mechanisms between microorganisms and heavy metals. The results indicate that the rational application of organic fertilizers combined with supplemental irrigation can mitigate soil salinity accumulation and water deficits, and reduce the soil pH, thereby enhancing soil oxidation, promoting nitrogen transformation and increasing nitrate-nitrogen levels. As the proportion of organic fertilizers increased, heavy metal residues, enrichment, and risk indices in the crop grains also increased. Compared to no irrigation, supplemental irrigation of 22 mm during the grain-filling stage increased soil surface Cd content, Zn content, and the potential ecological risk index (HRI) by 10.2%, 3.1%, and 8%, respectively, while simultaneously reducing the heavy metal content in grains by 12-13.5% and decreasing heavy metal enrichment. Principal component analysis revealed the primary factors influencing Cu and Zn residues and Cd accumulation in the crop grains. Soil salinity was significantly negatively correlated with soil pH, organic matter, total nitrogen, and ammonium nitrogen, whereas soil organic matter, total nitrogen, ammonium nitrogen, soil pH, oxidation-reduction potential, soluble nitrogen, and microbial biomass nitrogen were positively correlated. The accumulation and residues of Zn and Cu in the soil were more closely correlated with the soil properties compared to those of Cd. Specifically, Zn accumulation on the soil surface was primarily related to aliphatic organic functional groups, followed by soil salinity. Residual Zn in the crop grains was primarily associated with soil oxidation-reduction properties, followed by soil moisture content. The accumulation of Cu on the soil surface was mainly correlated with the microbial biomass carbon (MBC), whereas the residual Cu in the crop grains was primarily linked to the soil moisture content. These findings provide theoretical insights for improving saline-alkali soils and managing heavy metal contamination, with implications for sustainable agriculture and environmental protection.
引用
收藏
页数:20
相关论文
共 50 条
  • [1] INFLUENCE OF PROLONGED USE OF SEWAGE EFFLUENT IN IRRIGATION ON HEAVY-METAL ACCUMULATION IN SOILS AND PLANTS
    ABOULROOS, SA
    HOLAH, SS
    BADAWY, SH
    ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE, 1989, 152 (01): : 51 - 55
  • [2] PROLONGED WASTEWATER IRRIGATION AND HEAVY METAL ACCUMULATION IN SOILS, VEGETABLES AND FODDER CROPS
    Khan, Imdad Ullah
    Khan, Naqib Ullah
    Khan, Muhammad Qasim
    Ullah, Kalim
    Bibi, Zarina
    Habib-Ur-Rahman
    Gangohi, Muhammad Shuaib
    CARPATHIAN JOURNAL OF EARTH AND ENVIRONMENTAL SCIENCES, 2015, 10 (01): : 211 - 221
  • [3] Influence of soil amendments on heavy metal accumulation in crops on polluted soils of Bangladesh
    Chamon, AS
    Gerzabek, MH
    Mondol, MN
    Ullah, SM
    Rahman, M
    Blum, WEH
    COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 2005, 36 (7-8) : 907 - 924
  • [4] Coefficients of heavy metal accumulation in forest soils
    Malinova, Diana
    Malinova, Ludmila
    Petrova, Kameliya
    Hristov, Biser
    BULGARIAN JOURNAL OF AGRICULTURAL SCIENCE, 2019, 25 (03): : 519 - 526
  • [5] Different sources of irrigation water affect heavy metal accumulation in soils and some properties of guava fruits
    Hussain, Sajjad
    Hassan, Ahmad
    Arshad, Pakiza
    Anjum, Muhammad Akbar
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2022, 29 (24) : 35986 - 35995
  • [6] Different sources of irrigation water affect heavy metal accumulation in soils and some properties of guava fruits
    Sajjad Hussain
    Ahmad Hassan
    Pakiza Arshad
    Muhammad Akbar Anjum
    Environmental Science and Pollution Research, 2022, 29 : 35986 - 35995
  • [7] ACCUMULATION OF HEAVY-METALS IN SOILS FROM EXTENDED WASTEWATER IRRIGATION
    SIDLE, RC
    HOOK, JE
    KARDOS, LT
    JOURNAL WATER POLLUTION CONTROL FEDERATION, 1977, 49 (02): : 311 - 318
  • [8] Lumbricids as accumulation indicators for heavy metal contamination in soils
    Tischer, S.
    GEFAHRSTOFFE REINHALTUNG DER LUFT, 2009, 69 (10): : 401 - 406
  • [9] Drainage, liming and fertilization of organic soils.: II.: Distribution of macro elements and heavy-metal accumulation
    Brække, FH
    SCANDINAVIAN JOURNAL OF FOREST RESEARCH, 1999, 14 (01) : 64 - 77
  • [10] Heavy metal accumulation in soils and grains, and health risks associated with use of treated municipal wastewater in subsurface drip irrigation
    Kamran Asgari
    Wim M. Cornelis
    Environmental Monitoring and Assessment, 2015, 187