The Impact of Climate Change and Human Activity on the Environments since Late Holocene in Central Taiwan- the Coring in Sun Moon Lake ( I )

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基本資料

Project title

Code/計畫編號

MOST105-2116-M019-003

Translated Name/計畫中文名

臺灣中部全新世晚期以來之氣候變化與人類活動對環境之影響-日月潭岩芯鑽探( I )

Project Coordinator/計畫主持人

Huei-Fen Chen

Funding Organization/主管機關

National Science and Technology Council

Co-Investigator(s)/共同執行人

陳明德
李德貴

Department/Unit

Institute of Earth Sciences

Website

https://www.grb.gov.tw/search/planDetail?id=11900787

Year

2016

Start date/計畫起

01-08-2016

Expected Completion/計畫迄

01-07-2017

Co-Investigator(s)

Min-Te Chen

Bugetid/研究經費

1597千元

ResearchField/研究領域

地球科學

"古日月潭乃一天然湖泊，而後因日本人建壩大量蓄水，形成今日兼具蓄水、發電與觀光等多項功能之人造水庫。對於水資源分配不均的臺灣貢獻卓越，未來水庫建造和水資源保護乃一重要的環境評估議題。本計畫除了討論此地區近3000 年以來氣候變遷與人類活動之影響外，期望進一步比較日月潭水庫建壩之前和之後，對於環境汙染的影響與碳封存效應的影響評估，符合當今全球變遷與碳封存效益之研究趨勢。臺灣湖泊研究沉積物的孢粉紀錄已證實全新世大暖期乃夏季季風增強之主要時期，直到近4 千年前以來夏季季風迅速衰退，近2000 年以來氣候似乎又再度趨向暖濕，但對於臺灣近2000 年以來包括中世紀暖期和小冰期氣溫和降雨變化的細節並不清楚。主因湖泊岩芯採樣解析度不足和過去定年技術無法突破，以致缺乏詳細研究。因此本研究預計在台灣最大湖泊日月潭鑽取較高解析度的岩芯，預計鑽取2~3 站位，每根岩芯2~3 公尺。主要目的在比較日月潭近3000 年以來的氣候變遷和人類活動對於生態與環境影響之衝擊。預計利用3 年時間完成多項研究指標，包括沉積物磁性、礦物分析、粒徑分析、無機和有機物化學指標、矽藻和孢粉等生態指標。進一步比較深受夏季季風影響之臺灣中部地區與深受東北季風影響的臺灣東北部地區氣候型態在全新世晚期的差異。" "Paleo Sun-Moon Lake is a natural lake. It was an artificial reservoir constructed for preserving water since Japan governance, and also has the effects of electric power and tourism today. The Sun-Moon Lake has extremely contribution in waterdisequilibrium Taiwan. The reservoir construction and preservation of water resources are important issues for environmental estimation in the future. In this project we not only discuss the influences of climate change and human activities since 3000 yr BP in this area, but also evaluate the influences of environmental pollution and carbon storage in Sun-Moon Lake before and after reservoir construction. This purpose corresponds to the present research trends on climate changes and carbon storages. Paleoclimate research of Taiwan's lakes has proved that Holocene Optimum is the main period of summer monsoon strengthening. The summer monsoon declined since 4 ky BP, while the climate became wet and warm again in recent 2000 yr. However, the 2 ky research is not so clear during the Mediaeval Warm Period and Little Ice Age in Taiwan. The chief reason is that the core data lack the enough resolutions and dating method can't be solved before. For this reason, we want to get high resolution cores in the Sun-Moon Lake, and select two or three sites. Each core has 2m~3m sediments. The main subject focuses on the climate change and human activity impacting the ecology and environments in recent 3000 yr. We design three years to finish many targets, includes sediment magnetism, mineral analyses, grain size variations, inorganic and organic proxies, biomarkers of diatoms and pollens. Finally, we want to compare the climate differences at late Holocene between the central Taiwan and northeastern Taiwan, where are respectively influenced by summer monsoon and winter monsoon."

Keyword(s)

日月潭
岩芯
氣候
指標
小冰期
Sun-Moon lake
core
climate
proxy
Little Ice Age

DSpace CRIS

The Impact of Climate Change and Human Activity on the Environments since Late Holocene in Central Taiwan- the Coring in Sun Moon Lake ( I )

基本資料

Description