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我们在野外考察时,在内蒙鄂尔多斯高原东缘,黄河西岸的黄土丘陵沟壑区发现一株全国最大的油松,可以叫它是中国的油松王。这棵油松,树龄近900年,胸径134厘米,高25米,冠幅14.5×16.4米,材积13.5立方米。无论是树龄或是胸径均居全国首位。据史料记载,早在秦汉时期,内蒙鄂尔多斯高原还有大量森林覆盖,经过长期农垦放牧,天然森林逐渐稀少。现在内蒙还零星保存有侧柏林、杜松林和油松林
When we were in the field, we found one of the largest pine trees in the loess hilly and gully region in the western bank of the Yellow River on the eastern edge of the Ordos Plateau in Inner Mongolia. We can call it the king of Chinese pine. This Pinus tabulaeformis, age nearly 900 years, diameter 134 cm, 25 meters high, crown width 14.5 × 16.4 m, volume 13.5 cubic meters. Regardless of age or DBH rank first in the country. According to historical records, as early as Qin and Han dynasties, Inner Mongolia Erdos Plateau also has a large number of forest cover, after long-term land reclamation grazing, natural forests gradually scarce. There are also sporadic in Inner Mongolia have preserved the Berlin, juniper forest and pine forest