1) Oak natural secondary forest
栎类天然次生林
1.
Study on the Quantitative Analysis of the Oak Natural Secondary Forest in Baotianman Nature Reserve;
宝天曼栎类天然次生林林分结构量化分析
2.
The Oak natural secondary forest in Baotianman National-level Nature Reserve is taken as the researching object,according to the survey materials of 32 samples,the structure characteristic,species diversity of Oa
选择宝天曼国家级自然保护区栎类天然次生林作为研究对象,根据32块样地的调查资料,详细的研究和分析了栎类天然次生林群落的结构特征、物种多样性,在此基础上,用稳定度指数法和主成分分析法分别分析和评价了栎类天然次生林的群落稳定性,最后根据研究结果针对该保护区的现状提出建议。
3.
Based on the 2×2 contingency table,association coefficient(AC) together with percentage co-occurrence(PC) and point correlation coefficient(φ)as well as Ka-Fang worth difference,the join relations of 26 major trees populations of in oak natural secondary forest are measured.
在对宝天曼地区乔木层树种的RA、RD、RF及IV分析的基础上,根据2×2联列表,运用联结系数、共同出现百分率、点相关系数以及卡方值分别测定了栎类天然次生林26个主要树木种群间的联结关系。
2) secondary oak forest
次生栎林
1.
Seasonal fluctuation of soil microbial biomass carbon in secondary oak forest and Pinus taeda plantation in north subtropical area of China;
北亚热带次生栎林与火炬松人工林土壤微生物生物量碳的季节动态
3) secondary oak stand
次生栎林
1.
The correlation between environmental factors and transpiration intensity of the secondary oak stand;
次生栎林蒸腾强度与生态因子的关系
4) secondary forest
天然次生林
1.
Under the similar site condition, the secondary forest and the mixed plantations had greater water conservation function and better maintenance of soil fertility than the pure stands did.
在相同的立地条件下,天然次生林和混交林具有更好的维持地力作用和更高的水源涵养功能。
2.
Aims We studied root morphology across the first five branch orders of 20 hardwood tree species from secondary forest in northeastern China.
该文根据细根分枝等级划分方法,研究了东北帽儿山天然次生林20个阔叶树种1～5级根直径、根长和比根长等形态指标。
5) natural secondary forest
天然次生林
1.
Investigation on natural secondary forest community in Hefei area;
合肥地区天然次生林群落的调查研究
2.
Point pattern analysis of spatial distribution of natural secondary forest populations in mountainous area of Beijing: A case study of Wuling Mountain nature reserve;
北京山区天然次生林种群空间分布的点格局分析——以雾灵山自然保护区为例
3.
Thinning effect on growth status of natural secondary forest;
天然次生林抚育间伐效果
6) Natural secondary forests
天然次生林
1.
Nutrient distribution and accumulation patterns of natural secondary forests on the Loess Plateau of Shanxi Province.;
晋西黄土区天然次生林营养元素分配与积累研究
2.
The carbon density and storage in four types of natural secondary forests are studied,and the results show that: 1) the range of carbon density in different apparatus of natural secondary forests is from 0.
通过对帽儿山林场4类天然次生林碳素密度及储量的比较研究,结果表明:1)天然次生林主要树种不同器官中碳素密度变化范围在0。
3.
The soil water content of different natural secondary forests in eastern mountains of Heilongjiang Province was studied,and the results showed that:①The soil moisture of natural secondary forests in different terrains declined gradually as the soil depth increased;②The soil water contents varied most in the depth of 0～10 cm,up to 20.
对黑龙江省东部山地不同地形天然次生林土壤水分含量进行研究,结果表明:①不同地形天然次生林土壤含水量随土壤深度的增加逐渐减小;②在0~10 cm处各林型土壤平均含水量差异最大,达20。
补充资料：欧洲白栎的种子萌发欧洲白栎坚果生出的胚根及侧根
[图]
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