| 滇池水华分形结构动态研究 |
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| 引用本文： | 周火艳,王崇云,彭明春,陈美卿.滇池水华分形结构动态研究[J].环境科学与技术,2011,34(2):32-35,46. |
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| 作者姓名： | 周火艳 王崇云 彭明春 陈美卿 |
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| 作者单位： | 云南大学生态学与地植物学研究所,云南,昆明,650091 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项研究课题资助(2008ZX07102-004) |
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| 摘 要： | 采用MODIS-NDVI数据,运用CART分枝树法将滇池水体分成富集区、过渡区和水面,依据分形理论对滇池水域不同分区微景观镶嵌体的分维数进行计算,揭示其分维特征,结果表明:滇池水体微景观镶嵌体具有统计意义上的自相似性,是一种随机分形结构,微景观的分维值越大,其形态越复杂,反之越简单.滇池99.7%面积属于富营养区,滇池...
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| 关 键 词： | 滇池 分形理论 MODIS-NDVI SI |
Dynamics Study on Fractal Structure of Cyanobacteria Bloom in Dianchi |
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| ZHOU Huo-yan,WANG Cong-yun,PENG Ming-chun,CHEN Mei-qing.Dynamics Study on Fractal Structure of Cyanobacteria Bloom in Dianchi[J].Environmental Science and Technology,2011,34(2):32-35,46. |
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| Authors: | ZHOU Huo-yan WANG Cong-yun PENG Ming-chun CHEN Mei-qing |
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| Institution: | ZHOU Huo-yan,WANG Cong-yun,PENG Ming-chun,CHEN Mei-qing(Research Institute of Ecology and Geobotany,Yunnan University,Kunming 650091,China) |
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| Abstract: | Lake Dianchi was divided into three parts including concentrated area,transition area and water area through CART tree method with MODIS-NDIV data.The fractal theory was used to calculate the fractal value of micro-landscape mosaic in different areas,and reveal the fractal characteristics.Results indicated that micro-landscape mosaic of the Lake has statistical self-similarity and its fractal dimension value is a kind of random fractal geometry.Bigger the fractal dimension value with the more complex morpho... |
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| Keywords: | Dianchi fractal theory MODIS-NDVI SI |
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