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山东省,位于我国东部黄河下游,大致界于北纬34°25′～38°23′、东经114°36′～122°43′之间,东西宽700多公里,南北长约400公里;总土地面积15.3万多平方公里。省境内低山丘陵面积约为全省总土地面积的32.9％,而低山丘陵中属于石灰岩组成的(青石山),在760万亩以上。因此,如何对石灰岩低山丘陵进行生产利用和发挥其自然资源潜力,成为了农、林、牧各条生产战线及科研部门共同关心的问题。自建国以来,
Shandong Province, located in the lower reaches of the Yellow River in the eastern part of China, is roughly between latitude 34 ° 25 ’to 38 ° 23’ north and longitude 114 ° 36 ’to 122 ° 43’ east long and 700 km east to west and about 400 km long from north to south. An area of more than 153,000 square kilometers. The province’s hilly area is about 32.9% of the total land area of the province, while the hilly area is composed of limestone (Qingshi Mountain), more than 7.6 million mu. Therefore, how to produce, use and exploit the potential of natural resources in the limestone hilly hills has become a common concern for various production fronts of agriculture, forestry and animal husbandry as well as scientific research departments. Since its founding,