生草覆盖下有机无机配施对苹果园温室气体排放的影响
发布时间:2021-06-06 11:14
农业活动对温室气体的排放贡献很大,特别是CO2、CH4和N2O,主要通过捕获地球发出的长波辐射来影响气候变化。本研究旨在监测果园有机无机配施条件下这3种重要温室气体(GHGs)的排放量。本试验以陕西省渭北区白水县西北农林科技大学苹果试验站为试验地点,研究了生草覆盖与有机肥、化肥配合施用对苹果园温室气体排放的影响。试验设置生草覆盖(R)和无覆盖清耕(C)两种主处理,副处理为:不施肥(CK),用化肥(NPK)、有机肥(M),MNPK化肥结合有机肥(MNPK)。采用静态箱采气法和气相色谱仪收集测定CH4、N2O和CO2的排放通量。通过研究油菜覆盖结合有机无机肥的施用,研究了生草覆盖对苹果园温室气体(GHGs)排放的影响。本研究结果发现,油菜覆盖栽培系统的温室气体排放量(GHGs)明显高于清耕处理。1.各处理CO2排放量季节变化一致,CO2排放通量与土壤含水量、温度呈极显著正相关。生草覆盖处理下的平均CO2
【文章来源】:西北农林科技大学陕西省 211工程院校 985工程院校 教育部直属院校
【文章页数】:66 页
【学位级别】:硕士
【文章目录】:
Abstract
摘要
Chapter I Introduction
1.1 Greenhouse gases
1.2 Greenhouse gases effect
1.2.1 Greenhouse gas emission from agriculture land
1.3 Fertilizers
1.3.1 Mineral fertilizer
1.3.2 Organic fertilizer
1.3.3 Biofertilizers
1.4 Advantages of manure and chemical fertilizer
1.4.1 Advantages of manure
1.4.2 Advantages of chemical fertilizers
1.5 Disadvantages of manure and chemical fertilizer
1.5.1 Disadvantages of manure
1.5.2 Disadvantages of chemical fertilizer
1.6 Research objectives
Chapter II Materials and methods
2.1 Experimental site
2.2 Experimental layout
2.2.1 The chamber technique
2.2.2 Cover cropping by Brassica rape L
2.2.3 Clean tillage(weed control)
2.3 Soil and air sampling
2.4 Soil analysis
2.4.1 Determination of soil organic carbon
2.4.2 Air flux collection
2.5 Research framework
Chapter III Effects of cover crop combined with manure and chemical fertilizer on SOC,NO_3~--N and NH_4~+-N content in apple orchard
3.1 Variation in SOC content
3.2 Variation in NO_3~--N content
3.3 Variation in NH_4~+-N content
3.4 Discussion and conclusion
3.5 Summary
Chapter IV Effects of cover crop combined with manure and chemical fertilizer on GHG emissions in apple orchard
4.1 CO_2 emissions in apple orchard
4.2 CH_4 fluxes in apple orchard
4.3 N_2O emissions in apple orchard
4.4 Effects of cover crop combined with manure and chemical fertilizer on cumulative GHGs emission in apple orchard
4.5 Global warming potential of cover crop combined with manure and chemical fertilizer in apple orchard
4.6 Discussion and conclusion
Chapter V Summary and recommendation
5.1 Summary
5.2 Recommendation
REFERENCES
LIST OF ACRONYMS
ACKNOWLEDGEMENTS
BIOGRAPHICAL SKETCH
【参考文献】:
期刊论文
[1]长期不同施肥条件下红壤小麦和玉米季CO2、N2O排放特征[J]. 黄晶,张杨珠,刘宏斌,王伯仁. 生态与农村环境学报. 2011(04)
[2]施肥对旱作免耕土壤酶活性与CO2排放量的影响[J]. 张志栋,刘景辉,王永强,崔凤娟,王润莲. 干旱地区农业研究. 2010(05)
[3]不同耕作措施对冬小麦田CO2排放通量的影响[J]. 黄涛,黄高宝,于爱忠,冯福学,燕永新. 甘肃农业大学学报. 2009(06)
[4]耕作方式对冬小麦田土壤呼吸及各组分贡献的影响[J]. 张宇,张海林,陈继康,陈阜. 中国农业科学. 2009(09)
[5]农田土壤温室气体产生机制及影响因素研究进展[J]. 翟胜,高宝玉,王巨媛,董杰,张玉斌. 生态环境. 2008(06)
[6]三峡库区不同土地利用方式下土壤氧化亚氮排放及其影响因素[J]. 林杉,冯明磊,阮雷雷,胡荣桂,彭业轩,肖宏宇,卢兰. 应用生态学报. 2008(06)
[7]三江平原旱田CO2通量日变化特征研究[J]. 卢妍,宋长春,王毅勇,赵志春. 农业系统科学与综合研究. 2008(02)
[8]农田土壤呼吸特征及根呼吸贡献的模拟分析[J]. 李虎,邱建军,王立刚. 农业工程学报. 2008(04)
[9]不同耕作措施下冬小麦生长季农田二氧化碳排放通量及其与土壤温度的关系[J]. 李琳,张海林,陈阜,李素娟. 应用生态学报. 2007(12)
[10]农田土壤生态系统冬小麦夏玉米轮作CO2排放特征研究[J]. 张国明,郭李萍,史培军,林而达,王静爱,缪驰远. 北京师范大学学报(自然科学版). 2007(04)
本文编号:3214270
【文章来源】:西北农林科技大学陕西省 211工程院校 985工程院校 教育部直属院校
【文章页数】:66 页
【学位级别】:硕士
【文章目录】:
Abstract
摘要
Chapter I Introduction
1.1 Greenhouse gases
1.2 Greenhouse gases effect
1.2.1 Greenhouse gas emission from agriculture land
1.3 Fertilizers
1.3.1 Mineral fertilizer
1.3.2 Organic fertilizer
1.3.3 Biofertilizers
1.4 Advantages of manure and chemical fertilizer
1.4.1 Advantages of manure
1.4.2 Advantages of chemical fertilizers
1.5 Disadvantages of manure and chemical fertilizer
1.5.1 Disadvantages of manure
1.5.2 Disadvantages of chemical fertilizer
1.6 Research objectives
Chapter II Materials and methods
2.1 Experimental site
2.2 Experimental layout
2.2.1 The chamber technique
2.2.2 Cover cropping by Brassica rape L
2.2.3 Clean tillage(weed control)
2.3 Soil and air sampling
2.4 Soil analysis
2.4.1 Determination of soil organic carbon
2.4.2 Air flux collection
2.5 Research framework
Chapter III Effects of cover crop combined with manure and chemical fertilizer on SOC,NO_3~--N and NH_4~+-N content in apple orchard
3.1 Variation in SOC content
3.2 Variation in NO_3~--N content
3.3 Variation in NH_4~+-N content
3.4 Discussion and conclusion
3.5 Summary
Chapter IV Effects of cover crop combined with manure and chemical fertilizer on GHG emissions in apple orchard
4.1 CO_2 emissions in apple orchard
4.2 CH_4 fluxes in apple orchard
4.3 N_2O emissions in apple orchard
4.4 Effects of cover crop combined with manure and chemical fertilizer on cumulative GHGs emission in apple orchard
4.5 Global warming potential of cover crop combined with manure and chemical fertilizer in apple orchard
4.6 Discussion and conclusion
Chapter V Summary and recommendation
5.1 Summary
5.2 Recommendation
REFERENCES
LIST OF ACRONYMS
ACKNOWLEDGEMENTS
BIOGRAPHICAL SKETCH
【参考文献】:
期刊论文
[1]长期不同施肥条件下红壤小麦和玉米季CO2、N2O排放特征[J]. 黄晶,张杨珠,刘宏斌,王伯仁. 生态与农村环境学报. 2011(04)
[2]施肥对旱作免耕土壤酶活性与CO2排放量的影响[J]. 张志栋,刘景辉,王永强,崔凤娟,王润莲. 干旱地区农业研究. 2010(05)
[3]不同耕作措施对冬小麦田CO2排放通量的影响[J]. 黄涛,黄高宝,于爱忠,冯福学,燕永新. 甘肃农业大学学报. 2009(06)
[4]耕作方式对冬小麦田土壤呼吸及各组分贡献的影响[J]. 张宇,张海林,陈继康,陈阜. 中国农业科学. 2009(09)
[5]农田土壤温室气体产生机制及影响因素研究进展[J]. 翟胜,高宝玉,王巨媛,董杰,张玉斌. 生态环境. 2008(06)
[6]三峡库区不同土地利用方式下土壤氧化亚氮排放及其影响因素[J]. 林杉,冯明磊,阮雷雷,胡荣桂,彭业轩,肖宏宇,卢兰. 应用生态学报. 2008(06)
[7]三江平原旱田CO2通量日变化特征研究[J]. 卢妍,宋长春,王毅勇,赵志春. 农业系统科学与综合研究. 2008(02)
[8]农田土壤呼吸特征及根呼吸贡献的模拟分析[J]. 李虎,邱建军,王立刚. 农业工程学报. 2008(04)
[9]不同耕作措施下冬小麦生长季农田二氧化碳排放通量及其与土壤温度的关系[J]. 李琳,张海林,陈阜,李素娟. 应用生态学报. 2007(12)
[10]农田土壤生态系统冬小麦夏玉米轮作CO2排放特征研究[J]. 张国明,郭李萍,史培军,林而达,王静爱,缪驰远. 北京师范大学学报(自然科学版). 2007(04)
本文编号:3214270
本文链接:https://www.wllwen.com/kejilunwen/nykj/3214270.html