林媚珍,冯荣光,纪少婷.中山市基塘农业模式演变及景观格局分析[J].广东农业科学,2014,41(24):184-189 |
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中山市基塘农业模式演变及景观格局分析 |
Analysis on mode change and landscape pattern ofthe Dike-pond agriculture in Zhongshan |
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DOI: |
中文关键词: 桑基鱼塘 生态农业模式 景观格局 中山市 |
英文关键词: mulberry fish pond ecological agricultural model landscape pattern Zhongshan city |
基金项目:国家自然科学基金(40771002);广州市教育局科
技项目(012A007) |
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中文摘要: |
选择中山市为对象进行实地调查研究,回顾了基塘生态农业发展模式,并利用1990、2000、2013 年3 期
TM 。感影像数据和地理信息系统(GIS)技术获取中山市基塘用地景观变化图,计算各时期基塘用地景观格局指数。
结果表明院传统的基塘农业模式正逐渐消失,基-塘的种养模式及其空间比例结构发生重大变化,主要表现为“重塘
轻基”现象,即重视鱼塘养殖、轻视基面种植曰研究期内基塘用地变化较大,出现先增后减趋势,由1990 年的324.69
km2增加到2000 年的476.56 km2,至2013 年减少为424.58 km2曰景观格局分析表明,基塘用地景观破碎化程度降低、
聚合度上升,这是由于基塘用地得到整治规划、集约化经营的结果。 |
英文摘要: |
Zhongshan was taken as a case study area and the Dike-pond ecological agricultural development model
was reviewed. Based on the interpretation of Landsat-TM data (with three digital images taken in 1990, 2000 and 2013,
respectively) and GIS technology, dynamic changes of Dike-pond land landscape types were attained and some landscape
pattern indices were computed and analyzed. The results showed that traditional Dike -pond agricultural pattern was
gradually disappearing with great change of Dike-pond爷s planting and cultivating patterns, also with significant changes of
Dike-pond爷s proportion in space structure. The main performance was heavy pond light base冶, which attached great
importance to the fish pond aquaculture while despised dike planting. The Dike-pond land changed greatly with the trend
of first increasing and then decreasing, which increased from 324.69 km2 in 1990 to 476.56 km2 in 2000 and reduced to
424.58 km2 in 2013. Landscape pattern analysis showed that the fragmentation of Dike -pond land reduced and the
polymerization rose, which was the result renovated and planed by Dike-pond land. |
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