Plan Name

Investigation and Study on the Irrigation Method and Irrigation Water Requirement for the Farming of Urbanite Leisure Agriculture under Tao-Yuan Main Canal Scheme

計畫編號

90-2-01

類別

灌溉營運管理類

摘要

本研究針對桃園大圳灌區含桃園、大竹、大園、大崙、草螺、新坡、觀音、新屋等八個工作站管轄區，進行水稻之外的作物面積，各種作物栽種方式、生長日數、灌溉方法、灌溉水源、灌溉水質之調查，並對本地區農民常種的18種作物甜椒、洋香瓜、西瓜、葉菜甘藷、食用甘藷、蕹菜、蘿蔔、茼萵、芥藍、苦瓜、絲瓜、菠菜、芹菜、小白菜、莧菜、向日葵、蒿苣及花卉等以水錶量測記錄用水量。本計畫水質檢測結果顯示，大圳幹線水質大部份時段水質無論水溫、PH及電導度均符合灌溉水質標準，唯在三月乾季第六支線之後，若干支線取入水門後EC值大於750 mho/cm 25℃，顯示大圳經由八德、內壢、中壢等地市區及工業區，大圳左側有污水排入，大圳水質已受輕度污染。為確保灌溉水源乾淨，本計畫建議農田水利會應呼籲各級政府重視排水問題，與水利會配合做好排水處理問題，一方面避免污染水源，另一方面努力淨化污水再行利用。本計畫對各種作物不同栽種方法之最適灌溉方法及灌溉需水量均做詳細分析，期望對農民設置灌溉系統及農田水利會之溉管理有所助益。

Abstract

The scope of this study program is inside the Tao-yuan Main Canal Irrigation Scheme, covering the jurisdiction irrigation areas of eight (8) working stations, including Tao-yuan; Ta-yuan, Ta-lun, Tsau-ro, Hsien-po, Kuang-yein, and Hsien-wu. The purposes of study are to investigate and observe the cultivation area, cultivation method, growth days and period, irrigation method and its water resources, water quality and their irrigation requirement for all crops other than paddy rice. The most popular non-paddy-rice crops growing in the study area are mainly, green pepper, sweet melon, water melon; sweet potato leave, vegetable sweet potato; leek, radish, lettuce; Chinese broccoli, bitter gourd, loofah, cerely, Chinese cabbage, amaranth, sun flower (heliotropism), and lettuce. The result of investigation and observation revealed that, most of irrigation period, the water quality including temperature, PH value and electronic conductivity (EC) are complied with the standard of irrigation water quality.; except, in the period of dry season in March, the quality of irrigation water taken from Lateral No.6, is below the required standard, such as the Eｃvalue was usually higher than 750 μ mho/㎝ 25 Oc. Apparently, the quality of irrigation water taken from main canal was polluted by the point sources of industrial waster treatment plants of Pa-tu, Nei-li, and Chung-li industrial areas. In order to maintain a acceptable irrigation water quality of the main canal, this program recommends to summon the relevant irrigation associations and Governmental agencies to pay more attentions to the problems of all industrial areas, by avoiding contamination of irrigation water on one hand, and strengthening the waster water treatment to improve the water quality of drainages; or even the re-utilization of the treated waster water for irrigation on other hand. This program has undertaken detailed analyses on the irrigation requirements with most appropriate irrigation method under various cultivation patterns. It is expected that, the results of this study would be beneficial to the farmer and irrigation associations who are planning to establish the necessary irrigation facilities for the above mentioned non paddy crops.

計畫主持人

陳獻

Project Director

Shinne Chen

關鍵字

灌溉、排水、市民農園、設施栽培、灌溉用水量

Keywords

Irrigation, Drainage, Municipal farm, Cultivation facilities, Irrigation requirement

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