欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志 ›› 2004, Vol. ›› Issue (6): 29-32.

• 研究报告 • 上一篇    下一篇

退耕政策下小流域景观格局变化研究

董有福1, 赵永华2, 全志杰3   

  1. 1. 南京工业大学土木工程学院, 南京, 210009;
    2. 中国科学院沈阳应用生态研究所树木园, 沈阳, 110016;
    3. 西北农林科技大学林学院, 杨凌, 712100
  • 收稿日期:2003-11-12 修回日期:2004-03-02 出版日期:2004-12-10
  • 通讯作者: 董有福,男,1976年生,硕士,在南京工业大学地理信息与测绘工程系任教,研究方向主要为遥感与地理信息系统在资源环境中的应用.
  • 基金资助:
    中国科学院知识创新工程重大资助项目(KZCX1-06-01)

Landscape pattern changes in small watershed on the basis of policies of land withdrawing from cultivation

DONG Youfu1, ZHAO Yonghua2, QUAN Zhijie3   

  1. 1. College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China;
    2. Shenyang Arboretum, Institute of Applied Ecology, Chinese Acadeny of Sciences, Shenyang 110016, China;
    3. Forestry College, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China
  • Received:2003-11-12 Revised:2004-03-02 Online:2004-12-10

摘要: 在景观生态学理论指导下,对陕北纸坊沟流域20世纪末景观变化进行了综合分析。研究表明,该流域在退耕还林还草政策的影响下,形成了以草地和林地为主体的景观格局,景观结构趋于简化,斑块复杂性和景观异质性程度降低,景观要素的空间联系得以加强,总体生态环境明显改善。

Abstract: Landscape pattern changes of Zhifanggou watershed during the late 20th century in North Shaanxi Province were studied.The results showed that grassland and forest were the main landscape tgres in the watershed,because of the policies of land withdrawing from cultivation.The landscape structure tended to be simplified,and the complexity of landscape were reduced,and spatial relationships among landscape elements were intensified.The whole ecological environment has been greatly improved.

Key words: Fenpropathrin, Phoxim, Mixture of pesticides, Soil microbe, Degradation

中图分类号: