1) stratified mixed stands
人工复层林
1.
Biomass and productivity of stratified mixed stands of Eucalyptus urophylla and Acacia mangium.;
尾叶桉与马占相思人工复层林生物量及生产力研究
2) Multi-stories mixed uneven-aged Pinus massoniana Lamb. plantation
人工马尾松复层混交林
3) Irregular forest
复层林
1.
massoniana and culturing irregular forests.
本文分析了马尾松人工林经营中存在的问题，提出了马尾松人工林林分改造应采取及时间伐、皆伐重造、保阔混交、培育复层林等4种途径。
4) multi-storied stand
复层林分
5) plantation
[英][plɑ:n'teɪʃn] [美][plæn'teʃən]
人工林
1.
Wood physical-mechanical properties of Taiwania flousiana compared to Cunninghamia lanceolata for plantation development;
不同树龄秃杉与杉木人工林木材物理力学性质的比较
2.
Shrinkage of smallwood of Cryptomeria japonica and Cunninghamia lanceolata plantation;
人工林日本柳杉和杉木小径材干缩性的研究
3.
Mechanical properties of juvenile and mature wood of Pinus densiflora from plantations;
人工林赤松幼龄材与成熟材力学性质的比较
6) planted forest
人工林
1.
Infiltrability of muddy water and universal model for both muddy water and tap water in planted forest site;
人工林地浑水入渗性能与通用入渗模型
2.
Soil fertility evaluation of planted forest land on the hilly-gullied Loess Plateau;
黄土丘陵区人工林地土壤肥力评价
3.
Quantity characteristics of plant community under tree-layers of planted forests in semi-arid windy area of north Shaanxi Province;
陕北半干旱风沙区人工林下植物群落数量特征研究
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