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应用生态学报 ›› 1999, Vol. 10 ›› Issue (3): 321-324.

• 研究论文 • 上一篇    下一篇

黄河三角洲景观组分判定与景观破碎化分析

布仁仓, 王宪礼, 肖笃宁   

  1. 中国科学院沈阳应用生态研究所, 沈阳 110015
  • 收稿日期:1998-11-19 修回日期:1999-04-13 出版日期:1999-05-25 发布日期:1999-05-25
  • 通讯作者: 布仁仓,男,1970年出生,硕士,助理研究员,现主要从事景观生态学与3S技术研究,发表论文6篇.E-mail:buren@landscape.syb.ac.cn E-mail:buren@landscape.syb.ac.cn
  • 基金资助:

    国家自然科学基金重点资助项目(49631040).

Analysis on landscape elements and fragmentation of Yellow River delta

Bu Rencang, Wang Xianli, Xiao Duning   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1998-11-19 Revised:1999-04-13 Online:1999-05-25 Published:1999-05-25

摘要: 以地理信息系统(ARC/INFO)为手段,利用遥感卫星图片(TM5)及其他相关图件,以地貌、土壤与植被作为景观分类指标,把黄河三角洲的景观分成8大类型,30个景观类型。在此基础上,以斑块的周长面积比值、相对面积及与其他景观类型之间的空间相关关系作为识别基质的指标,判定黄河三角洲景观的基质是柽柳芦苇潮盐土斜平地景观;根据斑块的周长面积比值识别廊道,并进行定量化研究。采用斑块密度对黄河三角洲景观的破碎化进行分析,发现生态交错带内斑块密度大;老河道附近景观破碎化严重.

关键词: 景观结构, 斑块密度, 基质, 廊道, 有性繁殖, 天然种群, 毛红椿, 适合度系数, 更新, 个体繁殖适合度

Abstract: Based on the TM5 satellite images and other relevant maps, e.g., the landform, soil and vegetation maps by GIS (PC ARC/INFO3.4D), the landscape of Yellow River delta was classified into 8 types and 30 subtypes. Accordingly, with the ratio of patch perimeter to area as well as the relative area and the spatial relations of landscape types as the indexes of identifying matrix, the landscape of Tamarix chinensis-Phragmites communis saline fluvo aquic soil inclined flat was discriminated as matrix in the landscapes of Yellow River delta. The corridors were discriminated by statistics of the ratio of patch perimeter to area step by step. The analyses on landscape fragmentation at Yellow River delta by patch density show that the patch density was bigger in ecotones, and the landscape fragmentation nearby old river courses was serious.

Key words: Landscape structure, Patch density, Matrix, Corridor, individual reproductive fitness, fitness coefficient, natural population, sexual reproduction, regeneration., Toona ciliata var. pubescens