|
说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
|
|
1) spruce plantations
云杉人工林
1.
Theory model was fitted through analyzing different age gradations and age groups and the protective maturity period of regeneration in spruce plantations was determined as well as.
本研究以川西亚高山米亚罗林区5~70 a云杉人工林为研究对象,采用空间代替时间、面上调查与定位观测相结合的研究方法,以云杉天然林为对照,研究不同年龄云杉人工林水源涵养效益及相关影响因子。
2) Spruce plantation
人工云杉林
1.
Woodland hydrological effects of spruce plantations and natural secondary series in sub-alpine region of western Sichuan;
川西亚高山人工云杉林和自然恢复演替系列的林地水文效应
2.
The results showed that the number of soil microorganism, enzyme activity of the mature spruce plantation were significantly lower than those of the young spruce plantation and secondary broad-leaved forest.
通过对川西亚高山针叶林人工重建过程中土壤微生物数量、酶活性及其与土壤养分性状的关系研究表明,云杉人工成熟林土壤微生物数量、酶活性明显低于云杉人工幼林地,也低于同龄的次生阔叶林地,人工云杉林随着林龄的增加土壤肥力严重退化。
3.
The results showed that soil silt, clay, physical clay, aggregate degree and structure coefficient in topsoil decreased with increasing of spruce plantation age and soil sand increased.
研究了川西亚高山针叶林人工重建过程中土壤物理性质,结果表明:随着人工云杉林龄的增加,土壤表层粉粒、粘粒、物理性粘粒、团聚度和结构系数降低,砂粒含量增高,土壤饱和持水量、毛管持水量及总孔隙和毛管孔隙在人工云杉林演替过程中表现出"U"型变化,即人工云杉从幼林向成熟林演替阶段,土壤饱和持水量、毛管持水量及总孔隙和毛管孔隙则减少,在40年生云杉林达最低值之后,随着云杉自疏而有上升的趋势,毛管持水量是决定林地土壤自然含水量的主要因子。
3) spruce plantation of northwestern Sichuan
川西北云杉人工林
4) Taxus wallichiana
云南红豆杉人工林
1.
Phenological Observation on Taxus wallichiana in Kunming Arboretum
昆明树木园云南红豆杉人工林的物候观测研究
2.
Height and Diameter Growth of Taxus wallichiana Young Trees and Its Correlation with Climatic Factors
云南红豆杉人工林幼树期林木的高径生长节律及其与气象因子的关联分析
5) Chinese fir plantation
杉木人工林
1.
Nutrient flux and its dynamic change of litterfall in a Chinese fir plantation forest;
杉木人工林凋落物养分通量及其动态
2.
Effects of nitrogen deposition on the soil base cations in Chinese fir plantation;
氮沉降对杉木人工林土壤盐基离子的影响
3.
Litter fall and its seasonal dynamic change of Chinese fir plantation;
杉木人工林凋落物量及其季节动态
6) Cunninghamia lanceolata plantation
杉木人工林
1.
The analysis on integrated management effect of thinning to reduce the occupation for Cunninghamia lanceolata plantations;
杉木人工林降位间伐的综合经营效果分析
2.
Characteristics of soil microbial biomass carbon and nitrogen and their relationships with soil nutrients in Cunninghamia lanceolata plantations.;
杉木人工林土壤微生物生物量碳氮特征及其与土壤养分的关系
3.
Biomass of Cunninghamia lanceolata plantation was investigated on 3 plots with better,middle & poor slope in Jingxi town in Minhou County.
在闽侯县荆溪镇三块立地条件大体属好、中、差不同坡位的杉木人工林样地进行生物量调查,调查结果表明,20年生杉木人工林在不同立地条件下干物质积累量差异显著,下坡干物质积累量(生物量)为154。
补充资料:天山雪岭云杉林
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
|