龙脑香科树

It was observed that the annual mean hgight and mean diameter at breast height of 28 a trees were 1.06 m and 1.85 cm respectively, the height and DHB in successive years were more than 1.1 m and 2.50 m respectively after planting 5 a especially. Annual mean DHB increased faster than other Dipterocarpaceae species planted in same condition. The growth periods was long, lasted from February December.

该树种在引种地生长迅速，年均生长量分别为1.06 m和1.85 cm，特别是在造林5 a后，生长极为迅速，树高连年生长量超过1.1 m，胸径连年生长量超过2.5 cm，与同一立地条件下栽培的其他国产龙脑香科树种相比，径粗生长超过任何一种树种。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。