基于LUCC的珠海淇澳岛生态系统服务功能价值动态评估

通过解译珠海淇澳岛地区1999、2003、2008、2013年高分辨率遥感图，得到该区15年来(19992013年)土地覆被变化（LUCC)情况:淇澳岛陆地总面积增加了约25%，其中林地面积增长了464 hm2;建设用地面积减少了396 hm2；裸地面积减少了27936 hm2；水域（鱼塘）面积减少了9745 hm2．对淇澳岛生态系统服务功能进行了多年的动态价值评估，得出该区4期生态系统服务功能价值分别为14904106、17246106、17107106、20735106元．表明淇澳岛生态系统服务功能价值巨大，且15年来总体呈不断上涨趋势；生态修复效果较为明显，其中林地在整个价值中所占的比重最大且不断增大，起到了决定性作用;以生态系统服务功能变化为指标监测海岛生态修复效果是一种有效的手段.淇澳岛省级自然保护区在红树林修复建设上取得了显著的效果，对珠海地区乃至珠三角地区的环境生态都产生了积极的影响．

LUCC-Based Dynamic Evaluation of Ecosystem Service Value in Qi'ao Island,Zhuhai

By analyzing high resolution images of Qi'ao Island area in Zhuhai in years of 1999, 2003, 2008, and 2013, the LUCC (Land-Use and Land-Cover Change) of this area from 1999 to 2013 is obtained. The result indicates the immense value of ecosystem service in Qi'ao Island, and the value has been increasing steadily in general for 15 years. The land area increases 25% in which forest area increases 464 hm2; construction land decreases 396 hm2; bare land area decreases 27936 hm2 and water area (ponds) decreases 9745 hm2. The ecosystem service value of this area in these four stages are 14904106 yuan, 17246106 yuan, 17107106 yuan, and 20735106 yuan, respectively. Among which, the value of the forest, which is the biggest and has been increasing, is playing a critical role. The result shows how great the ESV of Qi'ao Island is, which has been increasing consistently for 15 years overall. Also, the ecological recovery has made remarkable achievement. Taking the change of ecosystem services function as index to monitor the effect of island ecological restoration is an effective method. Qi'ao Island Provincial nature reserve has made good results on the protection of mangrove, which has a positive influence on the environment and ecology of Zhuhai area and the Pearl River Delta area.