碩士 / 國立中興大學 / 生命科學系所 / 102 / Wetlands are highly productive, which is the key site of carbon cycling on the Earth. In Chiku area, there are diverse landscapes, including natural wetlands (lagoons, estuaries) and artificial wetlands (fish-farm). Thise study aimed to quantify the gross primary production（GCP）, net primary production（NCP） and community respiration（CR） of the phytoplankton, microphytobenthos and epilithic algae in the natural and artificially wetlands, and to integrate the values of natural and artificially wetlands, mangroves, and salt pans for the estimation of the annual carbon sequestration rate in the Chiku coastal area.
The results showed that the biomass of algae were more higher in Cigu Lagoon because of the nutrients input and the shellfish culturing.The water of Black-Faced Spoonbill Reserve were shallower, so the benthic substrate was susceptible to be disturbed. Meanwhile, it the exchange of water between the Reserve and sea water was limited. In addition, there was migrants’ excretion, which worsenedthe water quality due to the decomposition of the excreta. In the Zengwun Estuary, the phytoplankton grew vigorously, which was stimulatedby the upstream input. Nevertheless, the sediment was disturbed frequently which causeed the microphytobenthos difficult to grow on. In the artificially wetlands, the fish-farms had high carbon sequestration rate per unit area, because it was enriched by feeding fish. Further, there was a large surface area of aquaculture ponds in Chiku （approximately 46%）, so artificially wetlands contributed most to the total amount of carbon sequestration. The mangroves’ carbon sequestration rate per unit area was not low, but the surface area was small, which resulting in the low contribution to the total carbon sequestration. However, the salt pans accounted for a large surface area, but the carbon sequestration rate per unit area was low. Consequently, the contribution to the total carbon sequestration was not high.Overall, under the current condition, the Chiku coastal wetlands acted as carbon sinks and totalling 68,348.52 t C y -1.
| Identifer | oai:union.ndltd.org:TW/102NCHU5105014 |
| Date | January 2014 |
| Creators | Bo-Han Liu, 劉柏漢 |
| Contributors | Hsing-Juh Lin, 林幸助 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 104 |
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