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一、自然资源概述 位于甘肃省东南之陲的陇南山地,地理坐标为东经104°01′—106°34′,北纬32°35′—34°32′,东连陕西省,南壤四川省,含长江流域甘肃段全部及渭河以南广大地区,总面积27915km~2,地质构造属南北秦岭褶皱的西延部分,境内山体高差悬殊,地形复杂,地貌多样,以山地丘陵为主,九山一川,整个地势西北高而东南低,海拔在550—4187m之间,相对高差多在500—1000m之间,切割剧烈,形成了低、中、高山中切割,低、中山浅切割和浅山丘陵等8种地貌类型。
I. Overview of Natural Resources Longnan Mountain, located in the southeast of Gansu Province, has the geographical coordinates of 104 ° 01’-106 ° 34’E and 32 ° 35’-34 ° 32’N, east of Shaanxi Province and south of Sichuan Province. Including the whole of the Gansu section of the Yangtze River Basin and the vast area south of the Weihe River with a total area of 27915km ~ 2. The geological structure is a part of the western extension of the Qinling fold in the South and North China. The mountainous terrain has a great difference in elevation, complex terrain and diverse landscapes. The whole terrain is high in the northwest and low in the southeast. The elevation is between 550-4187m and the relative height difference is mostly between 500-1000m. Severe cutting results in low, medium and high mountain cutting, low, medium shallow cutting and shallow mountain Hills and other 8 types of landforms.