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| 强胁迫力使脆弱环境突变--松辽平原百年开发史例证 | |
| 引用本文： | 孙广友,王海霞,于少鹏,赵文吉,万忠娟,罗新正.强胁迫力使脆弱环境突变--松辽平原百年开发史例证[J].第四纪研究,2004,24(6):663-671. |
| 作者姓名： | 孙广友 王海霞 于少鹏 赵文吉 万忠娟 罗新正 |
| 作者单位： | 中国科学院东北地理与农业生态研究所,长春,130012;首都师范大学,北京,100037;上海师范大学,上海,200234;中国科学院东北地理与农业生态研究所,长春,130012;中国科学院东北地理与农业生态研究所,长春,130012;哈尔滨学院,哈尔滨,150086;首都师范大学,北京,100037;南开大学,天津,300071 |
| 基金项目： | 2000年中国科学院重大湿地创新项目(批准号:KZCX2-302)资助 |
| 摘 要： | 以松辽平原为案例,首次提出并论证了"人类强胁迫力作用于脆弱环境系统必将导致生态环境突变"的命题。而这种突变机理又对"人类力是现代环境变化的第一驱动力"的论点提供支持。文章运用了区域学原理,对区域综合要素进行了分析,判定区域属于脆弱系统;运用地理景观理论,构建了距今约150年、100年、50年和现今(2000年)共4个时期的区域生态景观模型,揭示出人类逐阶强化胁迫的过程,并结合遥感分析,首次识别出松辽平原大面积荒漠和半荒漠;引进系统突变模型,论证了生态环境突变过程的存在及所特有的快速扩张性,可导致重大生态灾难--荒漠化过程失控。文章建议应认真研究中国广大地带的环境突变问题,制定科学合理的环境战略,应对全球环境变化的挑战。 |
| 关 键 词： | 强胁迫力 脆弱环境 突变 驱动力 |
| 文章编号： | 1001-7410(2004)06-663-09 |
| 收稿时间： | 2003-10-30 |
| 修稿时间： | 2004-05-11 |
STRONG STRESS TRIGGERS CATASTROPHIC CHANGE ON FRAGILE ENVIRONMENT:AN EXAMPLE OF THE DEVELOPMENT HISTORY FOR THE PAST 100 YEARS IN THE SONGLIAO PLAIN |
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| Sun Guangyou Wang Haixia Yu Shaopeng Zhao Wenji Wan Zhongjuan Luo Xinzheng.STRONG STRESS TRIGGERS CATASTROPHIC CHANGE ON FRAGILE ENVIRONMENT:AN EXAMPLE OF THE DEVELOPMENT HISTORY FOR THE PAST 100 YEARS IN THE SONGLIAO PLAIN[J].Quaternary Sciences,2004,24(6):663-671. | |
| Authors: | Sun Guangyou Wang Haixia Yu Shaopeng Zhao Wenji Wan Zhongjuan Luo Xinzheng |
| Institution: | 1. Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012; 2. Capital Normal University, Beijing 100037; 3. Shanghai Normal University, Shanghai 200234; 4. Harbin University, Harbin 150086; 5. Nankai University, Tianjin 300071 |
| Abstract: | Taking Songliao Plain as an example, the proposition that strong stress makes a fragile environment into catastrophe is demonstrated for the first time. The catastrophe mechanism also supports the issue that human power is the primary driving force of modern environmental change.Using the regional theories, the synthetical factors composing the region Songliao Plain are analyzed, and the region is determined as a fragile ecosystem. Using the theories and methods of geographical landscape evolution, the ecological landscape structures of about 150, 100 and 50 years ago and in the year of 2000 are reconstructed. The process of gradually increasing press is obvious.The remote sensing technique has recognized quite a few deserts and semi-deserts in this region, which is the result of catastrophe process, and may result in greater ecological disaster: the desertification process will be beyond control.At the present time, about 50% areas of our country belong to fragile environment, and most regions in the West and the Northeast have been in catastrophe phase under the stronger and stronger stress from human being activities. For establishing rational environmental strategies to face the challenges of global environment change, we suggest that the problems of environmental catastrophe in some regions of China should be studied seriously. |
| Keywords: | strong stress fragile environment catastrophe driving power |
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