有機(jī)肥施用對(duì)土壤—植物體系中硒生物有效性的影響及其機(jī)理
發(fā)布時(shí)間：2022-12-11 02:44
硒（Se）是人類和動(dòng)物必需的微量元素。人體中的硒含量直接取決于日常硒攝入量,間接取決于從土壤進(jìn)入食物鏈的有效硒含量。土壤硒有效性受外源硒種類、土壤理化性質(zhì)和農(nóng)藝措施等影響,施用有機(jī)肥是維持或提高土壤肥力的一種傳統(tǒng)方法,這一過程會(huì)影響土壤中硒的形態(tài)轉(zhuǎn)化,進(jìn)而影響其生物有效性。但迄今為止,有關(guān)有機(jī)肥施用對(duì)土壤中硒生物有效性影響的研究很少。本研究利用盆栽試驗(yàn)和培養(yǎng)試驗(yàn)相結(jié)合,系統(tǒng)研究了有機(jī)肥與外源硒在土壤中相互作用過程對(duì)硒形態(tài)轉(zhuǎn)化及有效性的影響,結(jié)合傅里葉紅外、3-D熒光技術(shù)等揭示了其可能的機(jī)理。此外,結(jié)合單一浸提和連續(xù)浸提技術(shù),探究了DGT技術(shù)用于評(píng)估富含有機(jī)土壤中硒生物有效性的可行性。得到的主要結(jié)果如下:1.施用牛糞和雞糞顯著降低了土壤中外源硒的生物有效性,且在外源亞硒酸鹽處理下降更為顯著。牛糞和雞糞對(duì)硒的有效性的影響受到外源硒種類的影響:施用雞糞顯著降低了亞硒酸鹽處理硒的有效性（P＜0.05）,而添加牛糞顯著降低了硒酸鹽處理硒的有效性（P＜0.05）。與此相一致,當(dāng)施用亞硒酸鹽時(shí),添加牛糞芥菜硒濃度顯著高于雞糞處理,而當(dāng)施用硒酸鹽時(shí),添加雞糞的芥菜的硒濃度高于對(duì)應(yīng)的牛糞處理,這主要與牛...
【文章頁(yè)數(shù)】：184 頁(yè)
【學(xué)位級(jí)別】：博士
【文章目錄】：
摘要
ABSTRACT
Chapter 1 Introduction
1.1.Research background
1.2.Literature review
1.2.1.Selenium bioavailability in soil
1.2.2.Effects of soil properties on Se bioavailability
1.2.3.Assessment of Se bioavailability in soil-plant system
1.2.4.Effect of manure amendments on Se bioavailability
1.2.5.Biogeochemistry of selenium at the soil-root interface
1.3.Research content
1.4.Main research outline
Chapter 2 Effect of cow and chicken manure amendments on selenium fraction transformation and its bioavailability during aging process of exogenous selenite species
2.1.Introduction
2.2.Materials and methods
2.2.1.Soil and organic amendment and their physiochemical properties
2.2.2.Soil incubation
2.2.3.Sequential extraction of soil selenium
2.2.4.Fourier transform infrared spectroscopy analysis
2.2.5.Quality control and statistical analysis
2.3.Results
2.3.1.Soil pH and DOC during aging process
2.3.2.Se fraction and distribution during aging process
2.3.3.The dynamic changes of available Se during aging
2.3.4.Dynamic changes in the OM-Se fraction during aging
2.3.5.FTIR spectra characteristics of DOM
2.4.Discussions
2.4.1.Effect of DOC and pH on Se availability
2.4.2.The speciation transformation of available-Se and potential available Se during aging
2.5.Conclusions
Chapter 3 Effect of cow and chicken manure amendments on selenium fraction transformation and its bioavailability during aging process of exogenous selenate species
3.1.Introduction
3.2.Materials and methods
3.2.1.Soil and organic amendment and their physiochemical properties
3.2.2.Soil incubation
3.2.3.Sequential extraction of soil selenium
3.2.4.Fourier transform infrared spectroscopy analysis
3.2.5.Statistical analysis
3.3.Results
3.3.1.Soil pH and DOC during aging process
3.3.2.Se fraction and distribution during the aging
3.3.3.The dynamic changes of available Se during aging
3.3.4.Dynamic changes in the OM-Se fraction during aging
3.3.5.FTIR spectra characteristics of DOM
3.4.Discussions
3.4.1.Effect of DOC and pH on Se availability
3.4.2.The speciation transformation of available-Se and potential available Se during aging
3.5.Conclusions
Chapter 4 Effect of manure amendments and root-induced changes on Se fractionation and plant uptake of Brassica juncea(L.)Czern.et Coss
4.1.Introduction
4.2.Materials and methods
4.2.1.Soil and manure amendments and their physiochemical properties
4.2.2.Experiment design
4.2.3.Sequential extraction of soil selenium
4.2.4.Plant analyses
4.2.5.Quality control and statistical analysis
4.3.Results
4.3.1.Interactive effects of manure and plant root on soil pH
4.3.2.Interactive effects of manure and plant root on soil DOC
4.3.3.Distribution of Se fraction in the rhizosphere,bulk and unplanted soil
4.3.4.Interactive effects of manure and plant root on selenium species
4.3.5.Se uptake by plants
4.4.Discussions
4.4.1.The role of pH and DOC in determining the bioavailability of Se
4.4.2.Effect of manure and plant root on Se fraction and speciation
4.4.3.Effect of manure and plant roots on Se uptake by Brassica juncea(L.)Czern.et Coss
4.5.Conclusions
Chapter 5 Role of organic manure and the rhizosphere processes in determining the bioavailability of selenium in the soil-plant system
5.1.Introduction
5.2.Materials and methods
5.2.1.Soil and manure amendments and their physiochemical properties
5.2.2.Experiment design
5.2.3.Sequential extraction of soil selenium
5.2.4.Plant analyses
5.2.5.Selenium mobility and transfer to plant
5.2.6.Quality control and statistical analysis
5.3.Results
5.3.1.Effect of organic manure and the rhizosphere processes on soil pH
5.3.2.Effect of organic manure and the rhizosphere processes on the quantity and quality of soil DOC
5.3.3.Selenium available and its distribution in the rhizosphere and unplanted soil
5.3.4.Se uptake by plants
5.4.Discussions
5.4.1.Effect of organic manure and the rhizosphere process on Se bioavailability
5.4.2.Effect of manure and plant roots on Se uptake by Brassica juncea(L.)Czern.et Coss
5.5.Conclusions
Chapter 6 DGT and DOM-Se species extracted by selective extractions:Performance evaluation for the measurement of selenite in the soil-plant system with manure application
6.1.Introduction
6.2.Materials and methods
6.2.1.Soil and manure amendments and their physiochemical properties
6.2.2.Pot experiment design
6.2.3.Chemical extraction
6.2.4.DGT and soil solution measurements
6.2.5.Data analysis
6.3.Results
6.3.1.Plant growth in response to cow and chicken manure addition
6.3.2.Plant selenium uptake
6.3.3.Labile Se in soils assessed by selective extractions
6.3.4.Labile Se in soils assessed by DGT technique
6.3.5.Relationship of plant Se concentration with CDGT and DOM-Se species
6.4.Discussions
6.4.1.Biomass and Se contents of Brassica juncea(L.)Czern.et Coss with adding manure and selenite
6.4.2.Effect of manure on the fate of labile DOM-Se-extracted by selective extraction
6.4.3.Effect of manure on the resupply of Se from soil solid phase to soil solution
6.4.4.Se bioavailability assessment by DGT techniques and DOM-Se-extracted species
6.5.Conclusions
Chapter 7 DGT and DOM-Se species extracted by selective extractions:Performance evaluation for the measurement of selenate in the soil-plant system with manure application
7.1.Introduction
7.2.Materials and methods
7.2.1.Soil and manure amendments and their physiochemical properties
7.2.2.Pot experiment design
7.2.3.Chemical extraction
7.2.4.DGT and soil solution measurements
7.2.5.Data analysis
7.3.Results
7.3.1.Biomass and Se contents of Chinese mustard after adding organic materials into soils
7.3.2.Labile Se in soils assessed by selective extractions
7.3.3.Labile Se in soils assessed by DGT technique
7.3.4.Relationship of plant Se concentration with CDGT and DOM-Se species
7.4.Discussions
7.4.1.Biomass and Se contents of Brassica juncea(L.)Czern.et Coss with adding manure and selenate
7.4.2.Effect of manure on the fate of labile DOM-Se-extracted by selective extraction
7.4.3.Effect of manure on the resupply of Se from soil solid phase to soil solution
7.4.4.Se bioavailability assessment by DGT techniques and DOM-Se-extracted species
7.5.Conclusions
Chapter 8 Mobilization of selenium from seleniferous soil by organic acids
8.1.Introduction
8.2.Materials and methods
8.2.1.Soil samples and characterization
8.2.2.Experiment design
8.2.3.Data analysis
8.3.Results
8.3.1.Selenium released from seleniferous soil by LMWOAs
8.3.2.Iron released from seleniferous soil by LMWOAs
8.4.Discussions
8.5.Conclusions
Chapter 9 Conclusion and future perspectives
9.1.General conclusion
9.2.Perspectives
REFERENCE
ACKNOWLEDGEMENTS
ABOUT THE AUTHOR
PUBLICATIONS AND AWARDs
【參考文獻(xiàn)】：
期刊論文
[1]我國(guó)18種不同理化性質(zhì)的土壤對(duì)硒酸鹽的吸附解吸作用研究[J]. 馮璞陽(yáng),李哲,者渝蕓,黃杰,梁東麗. 環(huán)境科學(xué). 2016(08)
[2]海南島農(nóng)田土壤Se的地球化學(xué)特征[J]. 楊忠芳,余濤,侯青葉,楊奕,傅楊榮,趙相雷. 現(xiàn)代地質(zhì). 2012(05)
[3]基于路徑分析的土壤性質(zhì)與硒形態(tài)的關(guān)系[J]. 王松山,梁東麗,魏威,王丹. 土壤學(xué)報(bào). 2011(04)
[4]海南省土壤中硒含量及影響因素分析[J]. 徐文,唐文浩,鄺春蘭,羅桂強(qiáng). 安徽農(nóng)業(yè)科學(xué). 2010(06)
[5]烤煙苗期含硒量和根際硒形態(tài)的研究[J]. 秦恩華,楊蘭芳. 作物學(xué)報(bào). 2008(03)
[6]木質(zhì)纖維素分解菌復(fù)合系WSC-6分解稻稈過程中的產(chǎn)物及pH動(dòng)態(tài)[J]. 王偉東,王小芬,劉長(zhǎng)莉,李玉花,呂育財(cái),崔宗均. 環(huán)境科學(xué). 2008(01)
[7]張家口克山病地區(qū)土壤硒的地球化學(xué)形態(tài)研究[J]. 葛曉立,李家熙,萬國(guó)江,張光弟,張忠. 巖礦測(cè)試. 2000(04)
[8]烤煙根圈土壤硒含量和形態(tài)的研究[J]. 楊蘭芳. 湖北民族學(xué)院學(xué)報(bào)(自然科學(xué)版). 1997(06)
本文編號(hào)：3717992
【文章頁(yè)數(shù)】：184 頁(yè)
【學(xué)位級(jí)別】：博士
【文章目錄】：
摘要
ABSTRACT
Chapter 1 Introduction
1.1.Research background
1.2.Literature review
1.2.1.Selenium bioavailability in soil
1.2.2.Effects of soil properties on Se bioavailability
1.2.3.Assessment of Se bioavailability in soil-plant system
1.2.4.Effect of manure amendments on Se bioavailability
1.2.5.Biogeochemistry of selenium at the soil-root interface
1.3.Research content
1.4.Main research outline
Chapter 2 Effect of cow and chicken manure amendments on selenium fraction transformation and its bioavailability during aging process of exogenous selenite species
2.1.Introduction
2.2.Materials and methods
2.2.1.Soil and organic amendment and their physiochemical properties
2.2.2.Soil incubation
2.2.3.Sequential extraction of soil selenium
2.2.4.Fourier transform infrared spectroscopy analysis
2.2.5.Quality control and statistical analysis
2.3.Results
2.3.1.Soil pH and DOC during aging process
2.3.2.Se fraction and distribution during aging process
2.3.3.The dynamic changes of available Se during aging
2.3.4.Dynamic changes in the OM-Se fraction during aging
2.3.5.FTIR spectra characteristics of DOM
2.4.Discussions
2.4.1.Effect of DOC and pH on Se availability
2.4.2.The speciation transformation of available-Se and potential available Se during aging
2.5.Conclusions
Chapter 3 Effect of cow and chicken manure amendments on selenium fraction transformation and its bioavailability during aging process of exogenous selenate species
3.1.Introduction
3.2.Materials and methods
3.2.1.Soil and organic amendment and their physiochemical properties
3.2.2.Soil incubation
3.2.3.Sequential extraction of soil selenium
3.2.4.Fourier transform infrared spectroscopy analysis
3.2.5.Statistical analysis
3.3.Results
3.3.1.Soil pH and DOC during aging process
3.3.2.Se fraction and distribution during the aging
3.3.3.The dynamic changes of available Se during aging
3.3.4.Dynamic changes in the OM-Se fraction during aging
3.3.5.FTIR spectra characteristics of DOM
3.4.Discussions
3.4.1.Effect of DOC and pH on Se availability
3.4.2.The speciation transformation of available-Se and potential available Se during aging
3.5.Conclusions
Chapter 4 Effect of manure amendments and root-induced changes on Se fractionation and plant uptake of Brassica juncea(L.)Czern.et Coss
4.1.Introduction
4.2.Materials and methods
4.2.1.Soil and manure amendments and their physiochemical properties
4.2.2.Experiment design
4.2.3.Sequential extraction of soil selenium
4.2.4.Plant analyses
4.2.5.Quality control and statistical analysis
4.3.Results
4.3.1.Interactive effects of manure and plant root on soil pH
4.3.2.Interactive effects of manure and plant root on soil DOC
4.3.3.Distribution of Se fraction in the rhizosphere,bulk and unplanted soil
4.3.4.Interactive effects of manure and plant root on selenium species
4.3.5.Se uptake by plants
4.4.Discussions
4.4.1.The role of pH and DOC in determining the bioavailability of Se
4.4.2.Effect of manure and plant root on Se fraction and speciation
4.4.3.Effect of manure and plant roots on Se uptake by Brassica juncea(L.)Czern.et Coss
4.5.Conclusions
Chapter 5 Role of organic manure and the rhizosphere processes in determining the bioavailability of selenium in the soil-plant system
5.1.Introduction
5.2.Materials and methods
5.2.1.Soil and manure amendments and their physiochemical properties
5.2.2.Experiment design
5.2.3.Sequential extraction of soil selenium
5.2.4.Plant analyses
5.2.5.Selenium mobility and transfer to plant
5.2.6.Quality control and statistical analysis
5.3.Results
5.3.1.Effect of organic manure and the rhizosphere processes on soil pH
5.3.2.Effect of organic manure and the rhizosphere processes on the quantity and quality of soil DOC
5.3.3.Selenium available and its distribution in the rhizosphere and unplanted soil
5.3.4.Se uptake by plants
5.4.Discussions
5.4.1.Effect of organic manure and the rhizosphere process on Se bioavailability
5.4.2.Effect of manure and plant roots on Se uptake by Brassica juncea(L.)Czern.et Coss
5.5.Conclusions
Chapter 6 DGT and DOM-Se species extracted by selective extractions:Performance evaluation for the measurement of selenite in the soil-plant system with manure application
6.1.Introduction
6.2.Materials and methods
6.2.1.Soil and manure amendments and their physiochemical properties
6.2.2.Pot experiment design
6.2.3.Chemical extraction
6.2.4.DGT and soil solution measurements
6.2.5.Data analysis
6.3.Results
6.3.1.Plant growth in response to cow and chicken manure addition
6.3.2.Plant selenium uptake
6.3.3.Labile Se in soils assessed by selective extractions
6.3.4.Labile Se in soils assessed by DGT technique
6.3.5.Relationship of plant Se concentration with CDGT and DOM-Se species
6.4.Discussions
6.4.1.Biomass and Se contents of Brassica juncea(L.)Czern.et Coss with adding manure and selenite
6.4.2.Effect of manure on the fate of labile DOM-Se-extracted by selective extraction
6.4.3.Effect of manure on the resupply of Se from soil solid phase to soil solution
6.4.4.Se bioavailability assessment by DGT techniques and DOM-Se-extracted species
6.5.Conclusions
Chapter 7 DGT and DOM-Se species extracted by selective extractions:Performance evaluation for the measurement of selenate in the soil-plant system with manure application
7.1.Introduction
7.2.Materials and methods
7.2.1.Soil and manure amendments and their physiochemical properties
7.2.2.Pot experiment design
7.2.3.Chemical extraction
7.2.4.DGT and soil solution measurements
7.2.5.Data analysis
7.3.Results
7.3.1.Biomass and Se contents of Chinese mustard after adding organic materials into soils
7.3.2.Labile Se in soils assessed by selective extractions
7.3.3.Labile Se in soils assessed by DGT technique
7.3.4.Relationship of plant Se concentration with CDGT and DOM-Se species
7.4.Discussions
7.4.1.Biomass and Se contents of Brassica juncea(L.)Czern.et Coss with adding manure and selenate
7.4.2.Effect of manure on the fate of labile DOM-Se-extracted by selective extraction
7.4.3.Effect of manure on the resupply of Se from soil solid phase to soil solution
7.4.4.Se bioavailability assessment by DGT techniques and DOM-Se-extracted species
7.5.Conclusions
Chapter 8 Mobilization of selenium from seleniferous soil by organic acids
8.1.Introduction
8.2.Materials and methods
8.2.1.Soil samples and characterization
8.2.2.Experiment design
8.2.3.Data analysis
8.3.Results
8.3.1.Selenium released from seleniferous soil by LMWOAs
8.3.2.Iron released from seleniferous soil by LMWOAs
8.4.Discussions
8.5.Conclusions
Chapter 9 Conclusion and future perspectives
9.1.General conclusion
9.2.Perspectives
REFERENCE
ACKNOWLEDGEMENTS
ABOUT THE AUTHOR
PUBLICATIONS AND AWARDs
【參考文獻(xiàn)】：
期刊論文
[1]我國(guó)18種不同理化性質(zhì)的土壤對(duì)硒酸鹽的吸附解吸作用研究[J]. 馮璞陽(yáng),李哲,者渝蕓,黃杰,梁東麗. 環(huán)境科學(xué). 2016(08)
[2]海南島農(nóng)田土壤Se的地球化學(xué)特征[J]. 楊忠芳,余濤,侯青葉,楊奕,傅楊榮,趙相雷. 現(xiàn)代地質(zhì). 2012(05)
[3]基于路徑分析的土壤性質(zhì)與硒形態(tài)的關(guān)系[J]. 王松山,梁東麗,魏威,王丹. 土壤學(xué)報(bào). 2011(04)
[4]海南省土壤中硒含量及影響因素分析[J]. 徐文,唐文浩,鄺春蘭,羅桂強(qiáng). 安徽農(nóng)業(yè)科學(xué). 2010(06)
[5]烤煙苗期含硒量和根際硒形態(tài)的研究[J]. 秦恩華,楊蘭芳. 作物學(xué)報(bào). 2008(03)
[6]木質(zhì)纖維素分解菌復(fù)合系WSC-6分解稻稈過程中的產(chǎn)物及pH動(dòng)態(tài)[J]. 王偉東,王小芬,劉長(zhǎng)莉,李玉花,呂育財(cái),崔宗均. 環(huán)境科學(xué). 2008(01)
[7]張家口克山病地區(qū)土壤硒的地球化學(xué)形態(tài)研究[J]. 葛曉立,李家熙,萬國(guó)江,張光弟,張忠. 巖礦測(cè)試. 2000(04)
[8]烤煙根圈土壤硒含量和形態(tài)的研究[J]. 楊蘭芳. 湖北民族學(xué)院學(xué)報(bào)(自然科學(xué)版). 1997(06)
本文編號(hào)：3717992
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