1) Plantation of Pinus massoniana
马尾松人工幼林
2) young growth of Pinus massoniana
马尾松幼林
3) Pinus Massoniana plantation
马尾松人工林
1.
A study was conducted of the soil physical properties of Pinus massoniana plantation under different intensities of fire disturbance.
研究了马尾松人工林在强度、中度、轻度和无火干扰情况下林地土壤的物理性质。
2.
We evaluated the impact of litterfall on soil respiration under a Pinus massoniana plantation in Tianjiling National Forest Park of Changsha,Hunan,using a field study with litterfall exclusion and addition in a full factorial design.
2007年1—12月,在长沙天际岭国家森林公园,研究马尾松人工林土壤呼吸速率对去除和添加凋落物处理的响应。
4) Pinus massoniana plantations
马尾松人工林
1.
By using the data from dominant tree stem analysis and selecting the proper growth equation of Pinus massoniana plantations,this paper built up a polymorphic site index model for the plantations,which expresses their site index as an explicit expression of tree age and dominant height,and conducted an optimization solution to their model parameters by employing genetic algorithm.
利用马尾松人工林优势木树干解析材料,选择合适的生长方程构建了能把地位指数写成年龄和优势高显式表达式的多形地位指数曲线模型,并用遗传算法对其参数作优化求解。
5) artificial Pinus massoniana forest
人工马尾松林
6) masson pine (Pinus massoniana) plantation
人工林马尾松
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