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一、山区自然情况的特点山东省虽无高山,但地形比较复杂,海拔800m以上的中山占2.7%(面积为586万亩),海拔400—800m的低山占12%(为2586万亩),海拔200—400m的丘陵和海拔100—200m的台地占23.4%(为5064万亩),共占土地总面积的38.1%。鲁中南为全省地势最高、切割最强烈、地形最复杂的山地丘陵区。西起泰山,东至沂山,构成断续的略呈弧形的泰沂山脉,成为鲁中南山地丘陵区的脊背。此外,蒙山平卧于泰沂山脉之南。胶东地区地形起伏较平缓,是一个典型的丘陵区,仪山东半岛北部和西南部地势较高,有大泽山、艾山、昆嵛山、伟德山等自西向东分布,构成断续的低山区。在中国植被区划中,山东省是暖温带落叶阔叶林区域的一部分,地带性植被为落叶阔叶林和温性针叶林。但是由于长期以来人为活动的结果,天然植被已残存无几。广大的平原和不少低山丘陵已被开垦为农田而分布着各种栽培植被。山于林木稀少,至今全省
First, the characteristics of the natural conditions in mountainous areas Although there are no high mountains in Shandong Province, the terrain is rather complicated. Zhongshan at an elevation of 800m or above takes up 2.7% (covering an area of 5.86 million mu) and low mountains at an elevation of 400-800m (12.86 million mu) , Hills of 200-400m above sea level and platforms of 100-200m above sea level account for 23.4% (50.64 million mu), accounting for 38.1% of the total land area. Central and southern Shandong province has the highest terrain, the most intense cutting and the most complicated mountainous hilly area. Tarzan from the west, east to Yishan, forming a discontinuous slightly curved Taiyi Mountains, a mountainous hilly area in central Shandong Lu back. In addition, Mengshan lying in the south of Taishan. The Jiaodong area has a gentle relief. It is a typical hilly area with high topography in the northern and southwestern parts of Shandong Peninsula, with Dazeshan, Aishan, Kunyu Mountain and Weide Mountain distributed from west to east, forming intermittent Low mountain area. In the Chinese vegetation zoning, Shandong Province is part of the temperate deciduous broad-leaved forest. The zonal vegetation is deciduous broad-leaved forest and temperate coniferous forest. However, as a result of human activities over a long period of time, there are few remaining natural vegetation. The vast plains and many hilly hills have been reclaimed as farmland with a wide range of cultivated vegetation. Mountain in sparsely populated, so far the province