伊犁地区地貌基本特征与农业生产的关系  

RELATIONSHIP BETWEEN THE BASIC MORPHOLOGIC FEATURES AND AGRICULTURAL PRODUCTIONIN Ili REGION

作　　者：赵兴有[1] 

机构地区：[1]中国科学院新疆生态与地理研究所,乌鲁木齐市830011

出　　处：《干旱区地理》2000年第3期233-238,共6页Arid Land Geography

摘　　要：本文分析了伊犁地区地貌的基本特征对农业生产的直接和间接影响。阐述了地貌环境与农业自然灾害的关系 ,指出低山丘陵带、西部平原区和河谷平原区是农业生态环境脆弱地带。提出了改善本区农业生态环境的根本措施 -建立条带和网格状防护林体系 ;南北两侧的低山丘陵区 ,退耕还草 ;平原区调整农业用地结构 ,合理布局 。From a view point of sustainable development of agricultural production in Ili region, this paper analyzes the basic morphologic features and their direct and indirect impacts to agricultural production. It is expounded that Ili region is characterized by more mountains. The mountainous and plain areas occupy 75.2%and only 24.4% respectively in the total land area of 5.63×10 4 km 2.The mountains are high and steep and the morphologic vertical zones are obvious, i.e. in a succession of extremely alpine or alpine zone of glaciation and snowcover action, periglacial alpine zone, erosion mid mountainous zone, erosion low mountain zone and loess covered hills, alluvial diluvial sloped plains, and alluvial diluvial plains. These geomorphic types appear in a ring zone way, and such a geomorphic pattern, surrounded by mountains on its northern, eastern and southern sides respectively, has a great impact to climate and agricultural production conditions in Ili region. The high mountain bodies on the southern and northern sides can shut out the dry hot air current from both Tarim Basin and Junggar Basin and can be benefited by the humid air current of prevailing westerly wind, the high mountain body on the northern side can shut out the dry cold air current from the north to form an inversion layer, plentiful water resources, and suitable climatic conditions for the local agriculture, forestry and animal husbandry. Therefore, Ili region has the vast fine mountainous areas and land resources with high fertility on the vast alluvial diluvial plains where it is suitable for growing many crops. In Ili region with the favorable natural conditions, however, some ecological environment problems occur after an irrational development for 50 years, such as degeneration of forests and grasslands, lowering of soil fertility, frequent occurrence of floods and droughts, serious soil erosion, enlargement of the areas of secondary salinization, swampization and desertification, which restrict the economic development in this

关 键 词：伊犁地貌特征 农业自然灾害 农业生态脆弱带 

分 类 号：P931[天文地球—自然地理学]