摘要
综合自然及社会人文要素 ,借助于遥感等技术手段 ,应用地理相关分析法、环境本底法以及景观生态学的原理和方法对新疆典型绿洲的特征进行分析发现 ,新疆绿洲具有物质、能量及信息融合的高效性、景观模式的明显性、生态环境的脆弱性等特征。新疆绿洲的形成与演变是自然与人文因素共同作用的结果 ;水文条件决定着新疆绿洲的景观格局和规模 ,地貌条件决定着绿洲的宏观部位 ,人文活动决定着绿洲的演化方向。建立新疆绿洲的防护保障体系 ,实行绿洲的综合监控与管理 ,加强绿洲的基础设施建设 。
Oasis is a special landscape that is setting in desert or semi desert. Far from 25 million years ago, the dry climate environment is gradually formed. Meanwhile, the earliest oases are appeared in Tianshan valley and Tarim Basin. From then on, rising of mountains and continuing of dry climate are provided basic conditions for oasis formation. Because of geomorphology pattern of three mountains surrounded two basins, a lot of coupling systems of mountain oasis desert are formed. Among them, the areas of mountain region and desert as well as oasis are account for 49.5%, 22.5% and 3.53% respectively. Depending on remote sensing technologies and methods of geographical related analysis and environmental base as well as landscape ecology, the characteristics of typical oases in Xinjiang are analyzed. The results show that oasis has high efficiency of substance and energy as well as information fusion. In addition, oasis landscape pattern is distinctness. Moreover, ecological environment of oasis is fragile, and so on. The formation and evolution of oases are resulted from natural and artificial elements. Hydrological condition determins landscape pattern and scale of oases. Geomorphology condition determins macro location of oases. Human activities determins evolution direction of oases. In order to sustain ecosafty and harmony of oases some measurements, such as building safeguard system, executing complex monitoring and management, and strengthening infrastructure should be taken.
出处
《干旱地区农业研究》
CSCD
北大核心
2002年第3期109-113,共5页
Agricultural Research in the Arid Areas
基金
国家重点基础研究发展规划项目 (G19990 43 5 0 9)
中科院九五资源与生态环境研究重大项目(KZ95 1-B1-2 13 -0 2 )
中科院知识创新项目资助 (KZCX-XJ0 2 -0 2 )
关键词
新疆
绿洲
空间结构
耦合关系
生态安全
Xinjiang
oasis
spatial structure
coupling relation
ecosafty
