Study on Distribution and Suitable Habitat of Platycladus orientalis in Taihang Mountain Area of Hebei Province
In Hebei Province,Platycladus orientalis mainly distributed in the Taihang mountains.In order to reveal the distribution rule of lateral Platycladus orientalis and explore its suitable growth environment in Hebei Province,this paper calculated and analyzed the spatial distribution law of the area and stock of Platycladus orientalis in Hebei Province by using the binary volume table,and revealed the relationship between the area and topographic factors.The results showed that:(1)The distribution area of Platycladus orientalis in Taihang Mountain area of Hebei province is 16 857 hm2,the total stock volume is 583 100 m3,and the unit stock volume is 34.59 m3/hm2.(2)In different age groups,the total stock volume was the largest in the middle-aged forest(248 200 m3),and the unit stock volume was the largest in the over-mature forest(86.54 m3/hm2).(3)Among the different forest species,the water conservation forest(445 100 m3,12 813 hm2)had the largest total stock and the widest distribution,while the other protection forests(0.000 4 million m 3,0.000 1 million hm2)had the smallest total stock.(4)The suitable habitat for the Platycladus orientalis is 600～800 m above sea level,slope of 15°～25°,north slope area.
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