臺北水源特定區土砂保育健康診斷模式之建立

Establishing a Health Diagnosis Model of Soil Conservation for Taipei Water Source Domain

10.29417/JCSWC.201109_42(3).0004

陳樹群(Su-Chin Chen)；吳俊毅(Chun-Yi Wu)；王文江(Wen-Chiang Wang)；謝政道(Cheng-Daw Hsieh)；周伯愷(Po-Kai Chou)

健康診斷模式 ； 土砂保育 ； 逕流率 ； 臺北水源特定區 ； health diagnosis model ； soil conservation ； runoff ratio ； Taipei Water Source Domain

中華水土保持學報

42卷3期（2011 / 09 / 01）

207 - 218

繁體中文

針對臺北水源特定區，以監測、診斷、處理三步驟來建立土砂保育健康診斷模式。利用逕流率、崩蝕深度、綠覆率、水質指標、泥砂濃度等健康診斷指標來評估集水區問題，並瞭解其主要原因屬於何種驅力；藉此選定集水區管理目標，以子集水區為單元進行策略規劃。最後建立二階段之預警制度，以防範問題產生。由結果可知，區內水源涵養能力佳、植生覆蓋大致良好，主要問題為札孔溪子集水區區內崩塌地於颱風豪雨後影響下游原水濁度升高。

A health diagnosis model of soil conservation was established under the framework of monitoring, diagnosis and treatment processes for Taipei Water Source Domain. The health diagnosis indicators such as runoff ratio, denudation ratio, ratio of green cover, water quality indicator, and sediment concentration were used to evaluate soil conservation related problems. The causes of these problems were also appreciated and divided into kinds of driving force. Then the management object was decided and strategic planning was drafted for the sub-watershed. Finally, a two-phase early warning system was established to avoid the watershed problems. From the analysis results, the water resource conservation and plant cover of this watershed were treated well. The main problem was eroded soils always raise the water turbidity when typhoons or storms affected the landslides in the Jha-Kong Stream sub-watershed.