Study on the wind-prevention and sand-fixation benefit of the coastal shelterbelt forest based on remote sensing technology.
Study on the wind-prevention and sand-fixation benefit of the coastal shelterbelt forest based on remote sensing technology.
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发表时间：
2010
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通讯作者：
Yu Kunyong;Liu Jian;Shi Congzhi;Miao Lijuan;Xu Zhanghua;Lai JinHong
中科院分区：
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作者：
Yu Kunyong;Liu Jian;Shi Congzhi;Miao Lijuan;Xu Zhanghua;Lai JinHong
以福建省漳浦县沿海防护林防风固沙效益为研究对象，得出植被覆盖度，裸土面积的比例和土壤可蚀性，并以此作为防风固沙效果评价的评价指标。根据遥感技术对沿海防护林防风固沙效益的研究，构建了防风固沙效益的指标体系，运用综合指数法编制了1986年和2003年沿海防护林效益评价图，实现了防风固沙的远程监测研究，结果表明，植被覆盖度对土壤沙化程度有显著影响，沿海防护林的建设应重点考虑植被覆盖度对土壤沙化程度的影响漳浦县轻度荒漠化面积由1986-2003年的82.31%增加到83.60%，由重度荒漠化向轻度荒漠化转变。
Taking the wind-prevention and sand-fixation benefit of the coastal shelterbelt forest in Zhangpu county of Fujian province as the study object,the paper obtains the vegetation coverage,proportion of the area of bare soil and soil erodibility and makes them as the evaluated indicators for evaluation of the wind-prevention and sand-fixation benefit of the coastal shelterbelt forest according to the remote sensing technology.It constructs the indicators system of the wind-prevention and sand-fixation benefit,makes the evaluated maps of the benefit generated by the coastal shelterbelt forest in 1986 and 2003 with the help of comprehensive index method,and then it realizes the remote monitoring study on the wind-prevention and sand-fixation benefit of the coastal shelterbelt forest.The results showed that the vegetation coverage gave a significant impact on the soil deserted degree.The construction of the coastal shelterbelt had a positive function for wind-prevention and sand-fixation.In Zhangpu county,the mild desertification area had increased from 82.31 % to 83.60 % during 1986-2003,and the former severe desertification regions had been transforming to the mild.