中国西北地区脆弱的自然环境制约人类的生存和发展,人居建设和生态基质是承载和反映地区城乡建设发展和环境生态恶化双重压力的载体。压力的疏解是寻找符合多样的承载空间生态基质秩序的有机疏散的建设模式。基于风景园林学学科的角度和方法,针对不同脆弱生态基质特征,介绍小流域人居生态单元模式和生境营造的景观规划设计理论和实践探讨。
The fragile ecological environment of the northwest region of China constraints human survival and development.The small watershed settlement units and ecological matrix are the container and medium of the pressure by the development of human settlements and the transitions of water and soil erosion in the region of Loess Plateau.Mitigation solutions of the pressure could be explained by the loosen forms to respect the unit's pattern and the matrix,thinking on the urbanization and adopting the organic evacuation construction approach.The paper is based on the perspective and methods of landscape architecture discipline and introduces the landscape planning and design theories and practices of small watershed human settlement ecological units and bio-condition construction according to different fragile ecological matrix characteristics,and the study brings forward three models of "the ecological predetermined surrounding model of Mountain Twig Style","the settlements-ecology stringed beads model of Corridor Valley Style" and "the natural around island model of Flatlands Style".