題組內容

(四)、■ DocumentA:「水的兩難」-The Dual Challenge of Water

Pingtung County faces a paradox: the same rainfall that causes coastal flooding

also holds the key to solving land subsidence. To address both challenges

simultaneously, the local government implemented the Great Chaozhou Artificial

Lake(大潮州人工湖) project.Through diversion facilities, excess floodwater is

channeled away from downstream lowlands (分#) and directed into infiltration

ins where it slowly recharges the groundwater aquifer. This raises the 

dwater table, thereby mitigating Land Subsidence(地層下陷) ano Seawater

rusion(海水入侵).In addition,public lands near the Sanxihe Farrm(三西和農場)

have been converted into Detention Basins(滯池),temporarily storing

excess runoff and further reducing flood peaks.

(改寫自《114年屏東縣地區災害防救計畫》,僅供教育測驗用途)

    

■Document B:「山中之威脅」- The Threat in the Mountains

yphoon Morakot delivered catastrophic rainfall to southern Taiwan In

Pingtung's mountainous interior, heavy precipitation triggered a sequence of

cascading hazards. The upper reaches of the Ailiao South River (風察南溪)

experienced a Mass Wasting Event(大規模崩塌),sendingenormous volumes of

debris into the channel. This debris dammed the river, forming a Barrier Lake (堰賽湖)

. When the natural dam catastrophically failed, a debris-laden torent  

wnstream and buried the indigenous Paiwan village of Haocha (好茶村).此

複合災害序列(Compound Disaster Sequence)展示了降水強度(Precipitation

ensity)、地質脆弱性(GeologicalFragility)奥地形坡度(Topographic Gradient)

如何共同放大災害規模。

(改寫自屏東縣莫拉克颱風災害紀錄,僅供教育测驗用途)

2. 閱讀Document A與Document B，並參考以下國際案例，回答各子題。

【國際資訊】・荷蘭:萊茵河三角洲地區長期面臨地層下陷(年均2-4m)奥海水入

侵,採「奥水共存(Living with Water)」策略,以滯洪区换取都市安全全··日本四國:

8年西日本豪雨(24小時最大累積雨量逾500m),觸發廣島縣土石流,造成逾200人

罹難,複合災害鏈與 Document B具高度可比性。

（2）Document B描述的好茶村事件，屬於一種「複合災害序列(Compound Disaster Sequence)」。請先簡述好茶村事件此複合災害序列的三個關鍵環節，並各以一句話說明其觸發機制再與日本2018年廣島豪雨事件相比，請分析屏東山地的地理環境有哪些因素使災害規模更難以控制。