| 福建东山岛灾害生态风险的时空演化 |
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| 引用本文： | 巫丽芸,何东进,游巍斌,邓西鹏,谭勇,纪志荣.福建东山岛灾害生态风险的时空演化[J].生态学报,2016,36(16):5027-5037. |
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| 作者姓名： | 巫丽芸 何东进 游巍斌 邓西鹏 谭勇 纪志荣 |
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| 作者单位： | 福建农林大学林学院, 福州 350002,福建农林大学林学院, 福州 350002,福建农林大学林学院, 福州 350002,福建省地质测绘院, 福州 350011,福建农林大学林学院, 福州 350002,福建农林大学林学院, 福州 350002 |
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| 基金项目： | 国家自然科学基金项目（31200365，31370624，30870435）；福建农林大学林学院青年科学资助项目（6112C039V） |
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| 摘 要： | 将福建省东山岛作为灾害的承灾系统,以1994年、2003年及2011年3期遥感影像为基础,选择暴雨和大风作为东山岛主要灾害,从承灾系统脆弱性、承灾系统应灾力、承灾系统恢复力3个方面选择指标构建东山岛灾害生态风险评估指标体系,分别获得东山岛1994年、2003年和2011年3期暴雨和大风灾害生态风险图,结果表明:东山岛1994、2003、2011年暴雨和大风灾害生态风险格局均随时间出现明显变化;总体来看,东山岛西北部主要低山森林地带风险值较低,整体生态环境和抗灾能力较好,东北部城镇集中区和沿海地带风险值较高,生态环境质量和抗灾能力较低;东山岛17a来的人为干扰存在正负效应,长期生态建设使得东山岛西北部主要低山森林地带风险值下降,但大规模的城镇建设,旅游、养殖、房地产等对沿海地带的干扰,造成东北部城镇集中区及东部沿海地带风险值上升。
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| 关 键 词： | 灾害 生态风险 景观结构 时空动态 东山岛 |
| 收稿时间： | 2015/1/26 0:00:00 |
| 修稿时间： | 2016/3/21 0:00:00 |
Disaster ecological risk assessment in Dongshan Island:spatio-temporal evolution |
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| WU Liyun,HE Dongjin,YOU Weibin,DENG Xipeng,TAN Yong and JI Zhirong.Disaster ecological risk assessment in Dongshan Island:spatio-temporal evolution[J].Acta Ecologica Sinica,2016,36(16):5027-5037. |
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| Authors: | WU Liyun HE Dongjin YOU Weibin DENG Xipeng TAN Yong and JI Zhirong |
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| Institution: | Forestry College, Fujian Agricultural and Forestry University, Fuzhou 350002, China,Forestry College, Fujian Agricultural and Forestry University, Fuzhou 350002, China,Forestry College, Fujian Agricultural and Forestry University, Fuzhou 350002, China,Fujian Geologic Surveying and Mapping Institute, Fuzhou 350011, China,Forestry College, Fujian Agricultural and Forestry University, Fuzhou 350002, China and Forestry College, Fujian Agricultural and Forestry University, Fuzhou 350002, China |
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| Abstract: | The assessment of disaster ecological risk was investigated using remote sensing images of Dongshan Island in China, from 1994, 2003, and 2011. It selected rainstorm and gale as major disaster. Based on the characteristics of rainstorm and gale disasters and regional characteristics of Dongshan Island, it established ecological risk indices from disaster vulnerability, disaster bearing capacity and disaster restoring force. The results showed that the spatial pattern of rainstorm and gale disaster ecological risk appeared obvious change with time; overall, the risk value of low mountain area which is forested in the northwest of Dongshan Island was low, the risk values of northeastern area which is mainly towns and coastal area were high. It was found that human interference during the 17-year period has had both positive and negative effects. Long-term ecological construction in the low mountain area of northwestern Dongshan Island has made this area be forested and has reduced ecological vulnerability, and the overall ecological environment and anti-disaster capability in this area have improved. However, economic development in the form of tourism, aquaculture, and real estate, in conjunction with poor growth of the protective coastal forest, has increased the risk of town area and the coastal area of Dongshan Island. As a result, this paper thinks that this evaluation method not only determines the disaster-bearing capacity and anti-disaster capability of regional ecological systems, but also it can provide scientific advice to regional government departments on disaster management and prevention. |
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| Keywords: | disaster ecological risk landscape structure spatio-temporal dynamics Dongshan Island |
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