A Survey and Analysis for Soil and Water Conservation of the Catchment-A Case Study of Tangxia Brige Catchment

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Tangxia Bridge catchment area in Chiayi County townships, covers the Bay Bridge, Manchurian deer, Ziyun, Elan, within the Po, Tong Xing, Bai Qi and Longshan Village. The areas to the west side of the 3-wire as a north-south access road, east to County Road 159 with the outside world, the region out of all rely on this line. The catchment area is located in the central canal of the river LTK upstream region, belong to Putsu River basin. Catchment areas in the Tong Hing bridge at the home of the state house, catchment phase, the sloping part of the camphor Ping River and the Yantian Creek Basin. The terrain is plain from the eastern hills to the west gradient, highest at 595 meters, a minimum of 63 meters, an average of 205 meters, more than one slope and two slope. Geological Cholan Formation and its equivalent strata about 50% belong to the shale, distributed in the Project Area West measured hilly, water softening easy disintegration, gray on the streams of this district for the region up to 30 the main cause of the collapse, other strata contain Chinshui shale equivalent strata, the Gui Zhulin layer Toukoshan layer and local alluvium. In addition, western deer full Ziyun Village doubt there are still nine dome pit active faults was northeast - southwest by the assessment activities may result in the magnitude 6.5 earthquake. Collapse of ground in the the camphor Ping River upstream of the center of Oakland for the source of potential debris flow streams Chiayi A023, although in the past caused the injury circumstances, but the landslide continued to slip past the collapse of the effectiveness of the governance Buzhang, in addition to affect the white village of camphor, Qi Lu Ping of the traffic on the downstream Tong Village is a major threat. Landslides in one fell swoop the effectiveness of sediment control and eliminate the potential risk safety factors, the third project of the Council of Agriculture Soil Conservation Service from the source, intended to have the overall management plan for the collapse of the center of Oakland to take the 11 series of anti-dam potential stream source remediation planning, and for camphor, Ping River, Tai Po, a series of potential dam planning, in order to synergy. In addition, considering the rural development part for the territory of the Tong Village house brook and the fields and streams proposed remediation program to address the flooding problem has always been, in order to the local people live and work.