Land Consolidation Engineering Bureau, Ministry of the Interior, R.O.CLand Consolidation Engineering Bureau, Ministry of the Interior, R.O.C

Installing PVC pipes in the lower part of the side walls of drainage channels can allow smaller fish and aquatic creatures to hide. If the land on both sides of the waterway is wide enough, a relatively large PVC pipe can be used. Small stones are set into the pipe and more space is given to the land connecting with the back of the side wall to provide a place for the habitats of larger fish and aquatic creatures.

For tree planting where there are agricultural waterways upgrading and improvement works in early farmland consolidation areas, the difficulty of construction management and the adaptability of species to be planted are considered. Tree species selected for planting are those with a high degree of adaptability to the local land, which are also easy to maintain. The decision of which tree species to use is made after a local briefings and discussions with local village or borough chiefs and farmers.

This phase is a pre-engineering design operation. The content of its implementation includes collecting basic information (geology, original vegetation, ground materials and traffic) and hydrology in the improvement area and coordinating with local briefing sessions to inform the public of how to handle themandunderstand their needs. Finally, after taking into account the views of all relevant parties through review meetings, make it suitable for the local farming environmentaccording to the planning, suitable agricultural roads, water supply and drainage route types and planting configurations.

The system plans for updating and improvement works on agricultural waterways in early farmland consolidation areas are drawn up in accordance with the existing irrigation system information provided by the Irrigation Association. They are planned to run parallel at the side of agricultural roads, and are improved according to the relevant topographical circumstances. In principle, a water level 15 to 20 centimeters higher than the surface of patches of adjacent fields will facilitate irrigation.

Items described in the local briefing sessions for modernization and improvement of agricultural waterways in early farmland readjustment areas at the preliminary planning stage include the range and area of ​​the land to be readjusted, the planning and design principles of water supply and drainage channels, the planning and design principles of agricultural roads, cost estimations for agricultural waterway engineering, recommendations and matters for cooperation, and so on.