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| 深圳森林生态系统类型自然保护区近20年土地利用与 景观格局变化* |
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王佐霖,黄钰辉,杨龙,孙彩歌,孙宏斌,刘旭拢,张卫强,甘先华
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广东省深圳市野生动物救护中心,广东省森林培育保护与利用重点实验室，广东省林业科学研究院,广东省地理空间信息技术与应用公共实验室，广州地理研究所,广东省地理空间信息技术与应用公共实验室，广州地理研究所,广东省深圳市野生动物救护中心,广东省地理空间信息技术与应用公共实验室，广州地理研究所,广东省森林培育保护与利用重点实验室，广东省林业科学研究院,广东省森林培育保护与利用重点实验室，广东省林业科学研究院
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| 摘要: |
| 为探究中国快速城镇化过程中，特大城市城郊自然保护区的建设成效，以深圳市大鹏半岛和 田头山 2 个森林生态系统类型自然保护区为研究对象，通过 Landsat 影像分类和景观格局指数计算，分析 1995-2015 年 2 个自然保护区土地利用与景观格局变化特征。结果表明：两个自然保护区的土地利用类型 均以林地为主，且林地都经历了先减少后增加的过程；近20 a 的土地利用景观格局均呈现景观破碎化指 数和景观分割指数增大，而香农多样性指数降低的趋势。快速城市化进程使自然保护区的景观破碎化程 度不断提高 , 建立自然保护区有利于深圳市森林植被的恢复。 |
| 关键词: 森林生态系统 自然保护区 土地利用 景观 深圳 |
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| 基金项目:：广东省科技计划（2015A070710016，2018B030324002），广东省生态公益林效益补偿资金省统筹项目，林业科技创新平 台运行补助项目（2018-LYPT-DW-069）；市级自然保护区生态监测项目；广东省科学院创新人才引进资助专项（2017GDASCX-0805）。 |
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| Dynamics of Land Use and Landscape Pattern of Forest Ecosystem Nature Reserve in Shenzhen in Recent 20 Years |
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Wang Zuolin,Huang Yuhui,Yang Long,Sun Caige,Sun Hongbin,Liu Xulong,Zhang Weiqiang and Gan Xianhua
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Shenzhen Wild Animal Rescue Center,Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry,Guangdong Open Laboratory of Geospatial Information Technology and Application, Guangzhou Institute of Geography,Guangdong Open Laboratory of Geospatial Information Technology and Application, Guangzhou Institute of Geography,Shenzhen Wild Animal Rescue Center,Guangdong Open Laboratory of Geospatial Information Technology and Application, Guangzhou Institute of Geography,Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry,Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry
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| Abstract: |
| To explore of the construction effectiveness of suburban nature reserves in megacities during the rapid urbanization in China, we studied the characteristics of land use changes and landscape pattern of two forest ecosystem nature reserves (Dapeng Peninsula Nature Reserve and Tiantoushan Nature Reserve) in Shenzhen by Landsat image classi?cation and landscape pattern index calculation. The results showed that: forests were the major land use type in both nature reserves, and they decreased in 1995-2005 and increased in 2005-2015. In the past 20 years, the landscape pattern of land use showed increasing trend of the landscape fragmentation index and the landscape division index, while decreasing trend of the Shannon diversity index. The establishment of nature reserves is conducive to the restoration of forest vegetation in Shenzhen. The rapid urbanization process has enhanced the landscape fragmentation of nature reserves. |
| Key words: forest ecosystem nature reserve land use landscape Shenzhen |
