我国是一个多山的国家。山区、丘陵、高原面积占国土总面积的70％左右,且其类型复杂多样。山区又有一些程度不同、带普遍性的问题:植被稀少,水土流失相当严重,这是山区一个带根本性的问题。山区土地资源丰富,人均15～20亩左右,这是优势。但耕地少,土质差,人均不到一亩,口粮难于自给又是劣势。矿产资源种类繁多,但品位不高,分散、质量差,加上资金困难,交通不便,开发难度较大。森林资源丰富,但由于多年滥砍乱伐,资源正在不断减少,蓄积量正不断下降,荒山不断增加。 My country is a mountainous country. Mountainous areas, hills and plateaus occupy about 70% of the total land area, and their types are complex and diverse. There are also some problems in the mountain areas that are of different degrees and have universal problems: the vegetation is sparsely populated and the soil and water loss are rather serious. This is a fundamental problem in the mountainous areas. Mountain land rich in resources, per capita 15 ~ 20 acres, which is the advantage. However, less arable land, poor soil quality, less than one acre per capita, food is difficult to self-sufficiency is a disadvantage. A wide range of mineral resources, but the grade is not high, decentralized, poor quality, coupled with financial difficulties, inconvenient transportation, development more difficult. The forest is rich in resources, but due to years of indiscriminate cutting, resources are declining, volume is declining, and the barren hills continue to increase.