- 期刊
我國砂石供需現況分析
Supply and Demand Analysis of Sand and Gravel in Taiwan
摘要
我國砂石料60%以上來自河川疏濬，另部分來自礦區碎石及營建剩餘土石方，不足部分則倚賴進口，據以調節供需並穩定市場價格。依據分析顯示我國陸上砂石開採比例遠低於其他國家，倚賴河川砂石比例過高。砂石總需求量雖逐年減低至平穩，但未來仍會有需求增加的可能。河川砂石品質在我國北中南東四區並不一致，其中以中區品質最佳，而各區需求量以北區最高，常需要靠東砂西運、南砂北運或進口協助補足。近年各區砂石年均價格雖無太大變動，但進口價格已明顯提高，河川砂石產量與各區的價格趨勢也有一定的關係，未來須提前推動多元砂石料源供應，如預為推動陸上土石採取、重新開闢東砂西運運輸路線、輔導礦區碎石投入砂石產銷市場及持續維持進口砂石基本量，以提高我國砂石料源供應之自主性及穩定市場需求。
並列摘要
More than 60% supply of sand and gravel came from river dredging, and some came from mining area crushed stone and construction surplus, the rest relied on imports that adjusted supply and demand and stabilized market prices accordingly. According to analysis, the proportion of inland sand and gravel excavation in my country is far lower than many countries in the world, and the proportion of supply for river sand and gravel is too high. Although the total demand of sand and gravel has been declining these years and to be a stable level, there is still the possibility to increase in the future. The quality of river sand and gravel is not consistent in the four regions of Taiwan. Among which, the quality of the central area is the best. However the northern area has the highest demand, which often needs to be supplemented by transportation from east to west and from south to north. Although the average annual price of sand and gravel in each region has not changed much in recent years, the import price has increased significantly. The production of river granular material is also related to the price in each district. In order to upgrade the independent supply of Taiwan's sand and gravel and stabilize the market demand, it is necessary to develop the supply of sand and gravel from multiple sources in advance, such as to exploit the adoption of land-based sand and gravel, to review existing multiple transporting routes from east to west, to guide the mining area's sand and gravel into the market, and to continue maintaining the basic volume of imported sand and gravel.