摘要
通过对海洋生态系统特征的分析,构建了海洋生态系统可持续发展能力评价指标体系;运用信息熵构建了海洋生态系统可持续发展能力评价模型,分析各个指标对海洋生态系统可持续发展能力的影响,从而提出提高海洋生态系统可持续发展能力的相关性的措施。研究结果显示:2004~2011年,人类对海洋自然生态系统的需求日益加大;在国家和政府的重视下,海洋污染问题得到了改善,海洋生态系统内部朝着有序健康方向发展,自然生态系统的支撑能力不断提高,中国海洋生态系统可持续发展能力总体呈上升趋势。
Scientific evaluation of Marine ecosystem sustainable development ability is an important basic to grasp accurately whether healthy development of Marine ecosystem or not. In the Marine economy sustainable development concept, the sustainable development of Marine ecosystem is a foundation, and of great significance for human development. However, as the global population increases and an increase in the demand for resources, the Marine resources excessive consumption, and water eutrophication and serious consequences such as ecological variation, Marine ecosystems are under great pressure. Therefore, how to determine scientifically whether Marine ecosystem health development or not, has become an important problem under Marine economy sustainable development target. Large Marine ecosystem is an open system, which has the general characteristics of complex systems, such as open, dynamic, metabolic and adaptive. Marine ecosystem exchanges energy with the outside world, whose structure changes with the external disturbances and internal fluctuation change, and is a dynamic and stable ordered structure with a strong vitality. It has not only different pattern in the space and function, also shows a succession stage on time. Marine ecological system conforms to the characteristics of dissipative structure, and the change process shows the dissipative structure system characterized by the entropy change. The evaluation index system of sustainable development ability of Marine ecosystem was founded based on the characteristics of Marine ecosystem and understanding of Marine ecosystem sustainable development connotation. The sustainable development ability assessment model for Marine ecosystem was built up based on information entropy. The information entropy theory is based on probability and numerical statistics. Entropy in this article is a quantitative description of Marine ecosystem state, to evaluate Marine ecosystem sustainable development ability and the trend. Thus it analyzed various indexes' impacts on the su
出处
《地理科学》
CSCD
北大核心
2014年第6期664-671,共8页
Scientia Geographica Sinica
基金
国家自然科学基金(41101571)
教育部人文社科重点研究基地项目基金(10JJD790015)资助
关键词
中国海洋生态系统
熵变
信息熵
可持续发展
China′s marine ecosystem
entropy change
information entropy
sustainable development
