1) artificial Pinus tabulaeformis wood
人工油松林地
2) Pinus tabulaeformis plantation
油松人工林
1.
Study on characteristics of distribution of rainfall in Pinus tabulaeformis plantation in Daqing-Mountains
大青山区油松人工林降雨分配特征研究
2.
By adopting the concept of space as a substitute for time, a field investigation was conducted in the Malan forest region on Loess Plateau to study the plant species diversity of Pinus tabulaeformis plantations at different restoration stages and the changes of soil fertility.
通过样地调查,以空间代替时间的方法,对黄土高原马栏林区不同恢复阶段油松人工林群落物种多样性和土壤养分的变化进行了研究。
3.
The Pinus tabulaeformis plantation is a low and middle hill type of the zonal vegetation and is distributing in the low hill shade slope and half shade slope in Beijing mountainous areas.
2005年和2006年夏季,对北京密云水漳村和昌平小宫门低山阴坡厚土油松人工林林分的生长及其林下植物多样性变化情况进行抚育间伐后的调查研究。
3) Artificial Pinus tabulaeformis forest
人工油松林
1.
Litter-fall and the water-holding characteristics of litter in a 23-year-old artificial Pinus tabulaeformis Forest were studied from September, 2000 to October, 2003.
通过对人工油松林凋落量及其持水性动态变化的监测和研究。
4) Pinus tabulaeformis plantations
油松人工林
1.
Most of Pinus tabulaeformis plantations in northern China have problems with bad timber quality, high stand density, single layered forest structure, and lack of mixture.
我国北方油松人工林普遍存在着林木质量差、林分密度过大、林分稳定性差及林分多样性缺乏等问题。
2.
The carbon density in the Pinus tabulaeformis plantations in this area was ranged from 76.
对木兰林管局油松人工林19块标准地分林木层、灌木层、草本植物层、枯落物层和土壤层进行了生物现存量的实测与碳储量的研究,结果表明林木层和土壤层的碳储量构成了林分碳储量的主体。
5) Pinus elliottii plantation
湿地松人工林
1.
The biomass,carbon content,storage and distribution in Pinus elliottii plantation were studied by means of sample plot.
利用标准样方法对19a生湿地松人工林生物量、碳素含量、贮量及其空间分布进行测定。
6) slash pine plantation
湿地松人工林
1.
Effects of climate and soil type on growth and wood quality of slash pine plantations;
气候和土壤类型对湿地松人工林生长和材质的影响
2.
A trial with various thinning intensity was conducted in a 10 and 18yearold slash pine plantations.
对１０年生和１８年生两片湿地松人工林进行不同强度的间伐试验，间伐３年后的结果表明：强度和中度间伐可明显促进１０年生林分胸径、平均单株胸高断面积和平均单株材积的生长；１８年生林分间伐效果则不明显；间伐林分每公顷胸高断面积增长量只有自然林分的７０％～８７％。
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