天然水體中的溶解性有機質：化學表征、來源辨識及生物地球化學過程

Part I?Chemical Characterization
Chapter 1　
Pretreatment strategies and characterization techniques of dissolved
organic matter in natural waters: A comprehensive review 2
1.1?Introduction 2
1.2?Extraction strategies for DOM in natural waters 4
1.3?Factors affecting pre-treatment methods-SPE as an example 13
1.4?Chemical characterization of DOM in natural waters 18
1.5?The impact of ionization modes on FT-ICR-MS characterization 28
1.6?Conclusion and perspective 30
Chapter 2　
Molecular insight into algae-derived dissolved organic matters via
Fourier-transform ion cyclotron resonance mass spectrometry:
Effects of pretreatment methods and electrospray ionization modes 39
2.1?Introduction 39
2.2?Materials and methods 41
2.3?Results and discussion 50
2.4?Conclusions 68
Chapter 3　
Molecular characterization of macrophyte-derived dissolved organic
matters and their implications for lakes 73
3.1?Introduction 73
3.2?Materials and methods 74
3.3?Results and discussion 78
3.4?Conclusions 94
Chapter 4　
Characterization of plant-derived carbon and phosphorus in lakes by sequential fractionation and NMR spectroscopy 100
4.1?Introduction 100
4.2?Materials and methods 102
4.3?Results 105
4.4?Discussion 114
4.5?Conclusions 121
Chapter 5　
Characteristics and degradation of carbon and phosphorus from aquatic macrophytes in lakes: Insights from solid-state 13C NMR and solution
31P NMR spectroscopy 125
5.1?Introduction 125
5.2?Materials and methods 126
5.3?Results and discussion 128
5.4?Conclusions 142
Part II?Source Identification
Chapter 6　
Linking the molecular composition of autochthonous dissolved organic
matter to source identification for freshwater lake ecosystems by
combination of optical spectroscopy and FT-ICR-MS analysis 147
6.1?Introduction 147
6.2?Materials and methods 148
6.3?Results and discussion 153
6.4　Conclusions 166
Chapter 7　
Deciphering the molecular composition and sources of dissolved organic
matter in urban rivers based on optical spectroscopy and FT-ICR-MS analyses 170
7.1?Introduction 170
7.2?Materials and methods 172
7.3?Results and discussion 175
7.4?Conclusions 185
Chapter 8　
New insight into the source contribution of dissolved and particulate
organic matter in a typical macrophyte-dominated lake using optical spectroscopy, stable isotopes and FT-ICR-MS 190
8.1?Introduction 190
8.2?Materials and methods 193
8.3?Results and discussion 198
8.4?Environmental implications 211

Part III?Environmental Behavivor and Implication
Chapter 9　
Cation-induced coagulation of aquatic plant-derived dissolved organic
matter: Investigation by EEM-PARAFAC and FT-IR spectroscopy 218
9.1?Introduction 218
9.2?Materials and methods 219
9.3?Results and discussion 221
9.4?Conclusions 231
Chapter 10　
Molecular-level insight into the origin-dependent adsorption
fractionation of dissolved organic matter on ferrihydrite in aquatic environment: Implications for carbon sink in eutrophic lakes 236
10.1?Introduction 236
10.2?Materials and methods 238
10.3?Results and discussion 249
10.4?Environmental implications 271
10.5?Conclusions 272
Chapter 11　
Photodegradation of algae and macrophyte-derived dissolved organic
matter: A multi-method assessment of DOM transformation 277
11.1?Introduction 277
11.2?Materials and methods 278
11.3?Results and discussion 280
11.4?Conclusions 292
Chapter 12　
Molecular-level composition of dissolved organic matter in distinct
trophic states in Chinese lakes: Implications for eutrophic lake
management and the global carbon cycle 296
12.1?Introduction 296
12.2?Materials and methods 297
12.3?Results 303
12.4?Discussion 317
12.5?Conclusions 322