查询词典 Picea

The content of Zn in runoff of Pinus koraiensis plantation(H-3),Corylus cornuta marsh and Picea asperata plantation is lower than rainfall, and the content of Zn in Pinus koraiensis plantation (H-3) is the lowest.

红松人工林(H-3)、榛子灌丛和云杉幼林地的Zn元素含量都低于大气降水，且红松人工林(H-3)的Zn元素含量最低。

The results showed that: with the regression analysis of Betula platyphylla, Pinus koraiensis, Abies nephrolepis, Picea koyamai var koraiensis, and Betula costata, there was a significant negative correlation between neighborhood interference index and the growth (0.40~0.89) and the correlation extent depended on the neighborhood influence zone and slope. The neighborhood influence zone corresponding to maximal regression coefficient R~2 was the neighborhood influence radius. Based on the linear subsection regression between neighborhood interference index and influence zone of five species, the neighborhood interference index increased with the increasing zone and there was a previous increasing trend in a certain scope, while the increasing trend slackened beyond the zone. The neighborhood influence zone corresponding to transition point was the neighborhood influence radius. The neighborhood interference index positively correlated with the neighborhood influence zone and the range of R~2 was 0.40-0.64. With the analysis of tree cores of Juglans mandshurica, Fraxinus mandshurica at middle and lower slope in a plot which was fostered in 1995, the distance which the growth release farthest neighborhood and object stub was judged, thus the neighborhood interference radius was inferred. According to the studies, we found that the neighborhood interference radius was different among different trees, even if the neighborhood interference radius of the identical tree species also had the difference at different slopes.

结果表明：通过对白桦、红松、冷杉、红皮云杉和枫桦树种进行邻体干扰指数与生长量回归分析发现，邻体干扰指数与生长量呈显著负相关(0.40～0.89)，相关程度因邻体影响范围和坡位而异，R~2达到最大值所对应的影响范围即为邻体影响半径；通过对白桦、红松、冷杉、红皮云杉和枫桦树种进行邻体干扰指数与影响范围的线性分段拟合，邻体干扰指数随影响范围的增加而增加，其在一定的范围内上升较快，而超出该范围后上升的幅度变慢，变化的转折点所对应的影n向范围可以判定为邻体影响半径，线性回归显著(0.40～0.64)；通过对1995a抚育的胡桃楸、水曲柳样树进行研究，分析邻体树种的中坡位和下坡位的生长锥芯，判断产生生长释放的最远邻木与基株树桩所对应的距离，推断邻体影响半径；根据研究发现，邻体影响半径因树种不同有一定的差异，即使同一树种的邻体影响半径在不同坡位也有一定的差异。

A two-year study on the effects of three densities D1, 80±5 stemsm^(-2; D2, 140±8 stemsm^(-2); and D3, 220±11 stemsm^(-2) of Fargesia denudate in a F. denudata-Picea purpurea natural forest on the F.

在缺苞箭竹－紫果云杉原始林下，选取3个密度(D1、D2、D3)的缺苞箭竹，研究了密度对缺苞箭竹凋落物量、养分归还量及养分利用效率的影响。

The majority of the insects feeding on or parasitizing in Picea crassifolia were monophagous or oligophagous; the minority of them were polyphagous. The insects feeding on or parasitizing in the bush layer and grass layer were largely polyphagous, a few were oligophagous, the oligophagous insects were very few.

在青海云杉寄生或取食的昆虫多数种类为单食性或寡食性，少数种类为多食性，取食或寄生于林下灌木层和草本层的昆虫大多数为多食性，少数种类为寡食性，较少为单食性。

In this work main chemical changes between green wood and air dried wood, heartwood and sapwood in their extractives of Picea jezoensis var. komarovii and Abies nephrolepis are studied.

研究长白鱼鳞云杉、臭冷杉的木材及其抽出物化学组成，并分析生材与气干材、心材与边材中各种化学组成变化的规律。

The results showed that the dominant tree species Picea jezoensis and Abies nephrolepis were distributed nearly over the whole transect,and the companion trees and most of shrubs were found in certain fragments respectively.The total number of species of the plot varied slightly,but species composition among the plots varied greatly along with the elevation variation.This trend reflected the high habitat diversity of this forest zone.

研究结果表明主要树种云杉和冷杉在整个暗针叶林带均有分布，而伴生树种和多数灌木出现于一定海拔范围内；沿海拔梯度物种数变化小而物种组成变化大则表明长白山暗针叶林丰富的生境多样性。

Therefore, on Changbai Mountains if only timber production is considered, cutting the main coniferous species having the same diameter should be in the order: Abies nephrolepis, Pinus koraiensis, and Picea koraiensis.

单纯从木材收获的角度出发，在长白山地区，相同径阶下主要针叶树种的采伐顺序应为臭冷杉Abies nephrolepis，红松Pinus koraiensis和红皮云杉Picea koraiensis。

Bioinformatic analysis of this gene revealed that this protein belonged to the member of family 35 of glycoside hydrolyase superfamily 42, and had a closer genetic relationship with Arabidopsis thaliana, but farther with Persea americana and Picea sitchensis.

生物信息学分析结果表明，该番木瓜β-GAL属于糖苷水解酶超级家族42中家族35的成员，在进化过程中与拟南芥的亲缘关系较近，与鳄梨和北美云杉则较远。

So understanding the genetic diversity of Picea crassfolia is of significance to protect the germplasm resources and breeding work in the future.

因此了解青海云杉的遗传多样性对其种质资源的保护以及今后的遗传育种工作具有重大的指导意义。

After measurements of physiological activities and environmental factors of timberline trees, including Picea meyer...

虽然林缘的湿度条件中等，但良好的光照和温度条件对光合作用有促进作用

Among which is the mindset, perceptions and moralities of those who accept mini- military tasks for economic gains.

其中最重要的是心态，观念和道德的人谁接受小型军事任务的经济收益。

In time course imaging, activity peaked 2 days after coronary ligation.

在时程成像检测，活性峰值在冠脉结扎后2天。