The physical and spatial conditions can be improved by manipulation of the quantity and quality of land and water.
Land quantity can be increased through, for example, land reclamation (see Chapter 4).
Land quality can be improved by improving the soil structure and fertility (see Chapter 4), land-use planning (see Chapter 2), and rural road development (see Chapter 3).
Water quantity can be increased through drainage (in the case of water surplus), irrigation and inundation (in the case of water shortage), and water management in general (see Chapter 5).
Water quality can be improved through water purification and management (see Chapter 5).
Which conditions should be improved and by what method depends on the local land and water quantity and quality and socioeconomic and political conditions as well.
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