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生态学杂志 ›› 2003, Vol. ›› Issue (4): 116-120.

• 生态建设经验 • 上一篇    下一篇

干旱区内陆流域区域景观生态风险分析——以阜康三工河流域为例

陈鹏1, 潘晓玲2   

  1. 1. 南京大学城市与资源学系, 南京, 210093;
    2. 新疆大学干旱生态环境研究所, 乌鲁木齐, 830046
  • 收稿日期:2002-01-25 修回日期:2002-05-10 出版日期:2003-04-10
  • 通讯作者: 陈鹏,男,1974年生,南京大学在读博士生,主要从事景观生态学、资源利用和环境保护方面的研究,发表论文6篇.
  • 基金资助:
    国家基础研究重点规划项目<中国西部干旱区生态环境演化与调控研究>资助(G1999043503)

Ecological risk analysis of regional landscape in inland river watershed of arid area-a case study of Sangong River Basin in Fukang

CHEN Peng1, PAN Xiaoling2   

  1. 1. Department of Urban and Resources Science, Nanjing University, Nanjing 210093, China;
    2. Institute of Arid Ecology & Environment, Xinjiang University, Urumqi 830046, China
  • Received:2002-01-25 Revised:2002-05-10 Online:2003-04-10

摘要: 本文以新疆阜康三工河流域为研究区域,分析了干旱区内陆流域的景观生态的基本特点。在此基础上,基于景观格局构造了景观损失指数和综合风险指数作为区域景观生态风险评价指标,并利用空间分析方法对风险指数进行变量空间化,通过对生态风险指数采样结果进行半方差分析和空间插值,揭示了该区域的生态环境状况的空间分布特征。结果表明 :研究区内的生态风险有不断扩大的趋势,区域内形成三个高的景观生态风险区域。根据评价结果,提出了内陆流域生态环境的重点保护与治理区以及合理的保护与综合整治对策.

关键词: 尖角突脐孢菌, 稗草, 化学除草剂, 增效作用, 水稻

Abstract: In this paper, Sangong River Basin in Fukang was selected for case study. The landscape ecological characteristics of the inland river watershed of arid area were analyzed. Based on the landscape structure, the authors brought forward indexes and formulas to measure landscape damage degree and risk value of ecosystem. The system sampling method was used to make it a spatial variance, and the semivariagram analysis and block Kriging were conducted to explore the spatial characteristics and distribution of landscape ecological risk in the study area. The results indicated that the ecological risk in the study area tends to extend, and three belt areas with high ecological risk were formed in this region. Based on the results, the most important regions of eco environmental protection in the study area were determined, and the management countermeasures of eco environmental protection and strategies were put forward.

Key words: Exserohilum monoceras, Echinochloa crus-galli, Herbicide, Synergism, Paddy field

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