|基于 InVEST 模型的庙岛群岛典型陆域生态系统服务研究|
|Alternative Title||Typical terrestrial ecosystem services of Miaodao Archipelago based on InVEST
|Place of Conferral||中国科学院烟台海岸带研究所
（1）2017年，庙岛群岛的水源供给量为0.722亿m3；总碳固定量约为4.68×104 t，平均碳固定量约为350.45g/m2；土壤总流失量约为 50.63×104 t/a。各个岛屿中平地区域地势较低，土壤侵蚀量较少，易于储水，产水量密度较高；耕地、旅游地、居住地等人类活动较为密集的区域生境质量较差，碳存储量少；森林、草地等人为干扰较小区域生境质量较高，碳储存量较高。
|Other Abstract||The evaluation of ecosystem services is important for islands’ Eco-environment protection and land utilization. For most offshore islands, they are small in area and far away from the mainland with less species and vulnerable ecosystem. Then, the ecosystem services such as soil conservation, carbon storage, habitat quality and water yield are crucial to the sustainability of the island ecosystem. In this thesis, the Miaodao Archipelago was taken as the study area, and the InVEST model was used to quantitatively evaluate the four ecosystem services in 2017, i.e. water yield, carbon storage, soil conservation, and habitat quality. Then the characteristics of the four ecosystem services and the spatial distribution patterns of the trade-off and synergy relationships among these four ecosystem services were investigated. The main results and conclusions were as follows:
(1) The annual water yield of Miaodao Archipelago was 72.2 million m3.The total amount of carbon storage in Miaodao Archipelago was about 46.8 thousand tons, and the average carbon storage is 350.45g / m2.The total amount of soil erosion on Miaodao Archipelago was about 50.63×104 t/a. The low-lying areas were easy to store water yielding and the amount of soil erosion was lower. The habitat quality and the carbon storage in the areas covered with more vegetation was higher than that in the rural areas and tourism areas.
(2) The analysis results of the relationship among these four kinds of ecosystem services showed that: there was a negative correlation between water yield and carbon storage, water yield and habitat quality. Moreover, there was a positive correlation between habitat quality and soil conservation. No significant correlation was detected between water yield and soil conservation, carbon storage and habitat quality.
(3) The ecosystem services for different islands vary greatly, and the spatial distribution showed obvious regional differences. From the view of land cover, the ecosystem services of habitat quality, carbon storage and water production in forest were sound. In terms of elevation, slope and aspect, the ecosystem services varied greatly, and their characteristics were more prominent.
(4) The trade-off and synergy relationships between the four ecosystem services on different regions were different. It was necessary to adjust and control the ecosystem services according to the characteristics of the trade-off and synergy relationships to improve the ecosystem quality.
In conclusion, a quantitative assessment of the ecosystem services as well as the research on the balance and synergy of relationship among the island ecosystem services is helpful to coordinate local economic development and ecological protection, and then supporting the construction of Changdao Marine Ecological Civilization Demonstration Area.|
|MOST Discipline Catalogue||理学::地理学
殷丽婷. 基于 InVEST 模型的庙岛群岛典型陆域生态系统服务研究[D]. 中国科学院烟台海岸带研究所. 中国科学院烟台海岸带研究所,2020.
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