People in Taiwan are heavily rely on fishing and agriculture, many lands are being used to plant vegetation that had no benefit to the ecosystem. Betel nut tree as an example. People love to use the betel leave wrap with betel nut and some lime or additional herb to increase the flavor when they eat it. The use of betel nut tree not only linked to oral cancer, most importantly it altered the hydrological characteristics on slope-lands. As an increase of economic value in betel nut trees, people started to convert fruit orchards and forests into betel nut plantation. The root of the betel nut tree grow wide but not deep, so it has no strength to hold onto the ground as tight as other trees when facing strong wind and rainfall. After a devastating earthquake (called 921) and a continuous rainfall afterward, many people lost their life/home because of the betel nut trees that cannot mitigate the damage from the landslip. Public awareness to this issue finally brought on the table, a research done by Cheng in central Taiwan found: lands planted with a higher proportion of betel nut tree, receive a much higher annual streamflow/rainfall ratios, higher specific peak flows/base flow ration. The results from this study suggest that, in general, betel nut trees are less desirable from the soil and
People in Taiwan are heavily rely on fishing and agriculture, many lands are being used to plant vegetation that had no benefit to the ecosystem. Betel nut tree as an example. People love to use the betel leave wrap with betel nut and some lime or additional herb to increase the flavor when they eat it. The use of betel nut tree not only linked to oral cancer, most importantly it altered the hydrological characteristics on slope-lands. As an increase of economic value in betel nut trees, people started to convert fruit orchards and forests into betel nut plantation. The root of the betel nut tree grow wide but not deep, so it has no strength to hold onto the ground as tight as other trees when facing strong wind and rainfall. After a devastating earthquake (called 921) and a continuous rainfall afterward, many people lost their life/home because of the betel nut trees that cannot mitigate the damage from the landslip. Public awareness to this issue finally brought on the table, a research done by Cheng in central Taiwan found: lands planted with a higher proportion of betel nut tree, receive a much higher annual streamflow/rainfall ratios, higher specific peak flows/base flow ration. The results from this study suggest that, in general, betel nut trees are less desirable from the soil and