1) Even_aged plantation
同龄人工林
2) pure artificial even aged stand
人工同龄纯林
1.
The rectangle and isosceles triangle are two main kinds of arrangement of pure artificial even aged stand,according to correlative relationship between crown area and forest area of pure artificial even aged stand theoretical canopy density of stand between different row and intertree space are inferred and calculated.
通过人工同龄纯林树冠面积与林地面积的相关比例关系，推导、计算出人工同龄纯林林木品字形排列（等腰三角形）和矩形排列，且株行距不同的林分理论郁闭度。
3) Middle-young aged plantation
人工中幼龄林
4) different pant
不同人工林
5) even-aged stand
同龄林
6) even aged stand
同龄纯林
1.
The square average diameter cumulative percent ( SADCP ) of even aged stand complied with normal distribution is experientially between 55% and 64% on diameter cumulative curve.
对于直径遵从正态分布的同龄纯林 ,通常只从经验上判定其平方平均直径在株数累积分布曲线上的位置介于 5 5 %～ 6 4%之间 。
补充资料：人工受精与人工授精
人工受精与人工授精
artificial fertilization and artificial insemination
我国学者把“人工受精”与“人工授精”两名词区别开来：前者指人工体外受精而言，后者指把精液注入到妇女的阴道或宫颈管、宫腔内，使精、卵在体内相遇。人卵体外受精与胚胎移植后出生的婴儿俗称试管婴儿。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条