Nagy László (szerk.): A vízgazdálkodás fejlődése (TIT, Budapest, 1970)

X. Mellékletek

CONTENTS

I. THE ROLE AND IMPORTANCE OF WATER by Dr. László Nagy 19

1. Water in the nature ............................... 20

2. The properties of water 28

2.1 The physical properties of water 28

2.2 The chemical properties of water .32

2.3 The biological properties of water 37

3. The relationship between water and man ................................................................................... 41

3.1 The water, our friend ................................................................................................................... 41

3.2 The water, our foe 42

4. The tasks of water management .............. ............... 44

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I. THE PRELIMINARIES TO WATER MANAGEMENT. THE ORIGINS AND DEVELOPMENT OF WATER UTILIZATION AND HYDRAULIC CONSTRUCTIONS by Zsigmond Károlyi ........ 47

1. The birth of the first hydraulic constructions and the first civilisations 47

2. The scientific and technical level of ancient civilisations in the Middle East,

Far East and America 55

2.1 China 60

2.2 India, Ceylon 62

2.3 Central Asia 63

2.4 The Inkas and the Aztecs 64

3. Hydraulic engineering in Ancient Greece and the Roman Empire 65

3.1 Greece 66

3.2 Rome 68

4. The fall of ancient civilisations .................................................................................................... 76

III. THE HYDROLOGY OF HUNGARY by Dr. Woldemár Lászlóffy 81

1. Natural conditions that are decisive for hydrology 81

1.1 Factors determining the development of the river network and water regime in general. The cathment basin......................................................................................... 81

1.2 Geographical situation ................................................................ 84

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.3 Topography and river network ........................................................................................ 84

1.31 The Danube 84

1.32 The Drava 39

1.33 The Tisza 89

1.4 Geological structures and soil conditions 94

1.5 Climate 102

1.51 Rainfall 102

1.52 Snow 109

1.53 Temperature 112

1.54 Air humidity and evaporation .............................................. 115

1.55 Sunshine ...................... .116

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.6 Vegetation ................................ 116

1.7 The importance of human activity in hydrology 117

2. River regime 113

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