A Study on Hydrological Influence of Limestone Mining Area In Hualien

• Main Authors: Ho, Shih-Hua, 何世華
• Other Authors: Hao-Jung Shieh
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/52692558522811472513

碩士 === 國立中興大學 === 水土保持學系 === 86 === The objective of this research was to study the hydrological characteristicsby the limestone mining operation.　The method was carried out by waterquality, infiltration rate, and sediment yield were surveyed. in Hualien.The results were shown as follow ：1. The final infiltration rate of forest control is best and then the rate of the prior explosion area, explosion zone, operation platform and re- vegetation terrace decrease respectively.2. Generally, the operation of limestone mining including explosion, transport, grind-cutting. etc. decrease the water infiltration process.3. Also, soils of mining operation area drastically are disturbed can create horrendous problems in water body. Water quality of run off in turbidity and suspended solid reach frightening pollution stage, closed to 10 thousand mＳ/cm and thousand ppm respectively.4. Sedimentation treatment for the discharging water is necessary.5. Surface mine spoils are responsible for erosion sediment estimate at 4000 times greater then erosion in fully stocked forest.