Humic Matter in Soil and the Environment: Principles and Controversies - Chapter 2 pot

... Concepts 2. 2 Distribution of Humic Matter 2. 2.1 Humic Matter in Soils 2. 2 .2 Humic Matter in Soils of the Wetlands 2. 2.3 Humic Matter in Aquatic Environments 2. 2.4 Humic Matter in Geologic ... discussed in detail. Chapter 9 covers the environmental and industrial importance of humic matter. The outstanding role humic matter plays...

Ngày tải lên: 11/08/2014, 12:21

... TM Copyright n 20 03 by Marcel Dekker, Inc. All Rights Reserved. 22 Chapter 2 2. 2 .2 Humic Matter in Soils of the Wetlands The soils discussed above are generally well-drained, and the aerobic ... had the opportunity to accumulate a lot of organic waste during the centuries. 2. 2.1 Humic Matter in Soils Humic matter occurs in all kinds of soils sin...

Ngày tải lên: 11/08/2014, 12:21

... the melanoidin pathway or Maillard's reaction. Sugar and amino acid form the starting points, instead of lignin or phenol and quinone, as is the case in the ligno- protein and phenol-protein ... than protein and amino acids in the issue of humic matter formation. For a long time they were regarded as contaminants rather than as precursors of humic matte...

Ngày tải lên: 11/08/2014, 12:21

... apparently retained in the soil in the form of humic matter, since both humic and fulvic acids exhibit C contents in the range of that in plant residues. The hydrogen content of humic and fulvic ... HA-Oxisols FA-Andosols Temperate Redons Soils HA-Afisols HA-Aridisols (Solonetz) HA-Histosols (Peat-bogs) HA-Inceptisols HA-Mollisols HA-Spodosols HA-Ulti...

Ngày tải lên: 11/08/2014, 12:21

... between 29 80 and 29 20 cm-' and two strong absorption bands for carbonyls and carboxyls in COO at 1 720 and 1650 cm-', respectively. In addition, the humic acid spectrum lacks the strong ... peptides may be linked to the central core of the humic molecule by H-bonding. The con- ventional way to analyze N compounds in soil and humic acid is by...

Ngày tải lên: 11/08/2014, 12:21

... have the potential for enhancing polymerization of humic matter by linking the individual molecules together into chainlike structures. The metal -humic acid complex remains soluble when the ... with fulvic and humic acids. The data in the table indicate that com- paratively the value of log K, increases from Mg-FA -+ Zn-Fa and to Cu-FA chelates, suggest...

Ngày tải lên: 11/08/2014, 12:21

... Importance of Humic Matter 27 3 decomposition process, on the other hand N is being added in the humic structure. These processes cause the C/N ratio of the humic substances to decline to the narrowest ... cycle involves an outer cycle representing the overall cycle, and an inner cycle which occurs in the soils. In the inner cycle, the NO ,- is not...

Ngày tải lên: 11/08/2014, 12:21

... monitored in the brine or cooling water systems because they are not expected to be contained in large quantities in these sidestreams of the thermal desalination process. 2. 5 .2 MED desalination ... Abbreviations and Acronyms xi 1 Desalinated Drinking-water Production and Health and Environment Issues 1 1.1 Water quality and health issues 2 1 .2 Drinking...

Ngày tải lên: 29/06/2014, 02:20

... cabarets, in the public walks, and the public sports, shouting, twisting their mustaches, clanking their swords, and taking great pleasure in annoying the Guards of the cardinal whenever they could ... were still the landing place and the antechamber. On the landing they were no longer fighting, but amused themselves with stories camp from by six o’clock in t...

Ngày tải lên: 02/07/2014, 03:20

... Na 2 O 1.89 ± 1.34 2. 11 ± 7. 12 2.54 ± 2. 24 3.08 ± 3.08 2. 34 ± 2. 57 Calcium – CaO 46.5 ± 20 .8 42. 5 ± 11.7 37.8 ± 9.3 36.4 ± 9 .2 32. 2 ± 7.5 Magnesium — MgO 3 .21 ± 1 .2 3 .2 ± 2. 1 2. 7 ± 2. 2 2. 2 ± ... decomposition (Tables 2. 2 and 2. 3). Drainage and soil drying increase bulk density and volume of the solid phase in the upper layer (Table 2. 4). The...

Ngày tải lên: 11/08/2014, 15:20