树种

Some arborous tree species have the highest water utilization efficiency, such as Chinese Pine, Quercus variabilis, Sawtooth oak and Chinese Arborvitae.

在水分充足条件下，供试22个试验树种苗木蒸腾速率、光合速率与水分利用率日变化曲线呈相似的变化趋势。

Asian (47.4%) and temperate genera mainly constituted by North temperate (50%) and E. Asian (50%). So that the geographical elements are discomplex. In the 25 species of arborous layer, 76% is the middle subtropical zonal type, 16% south subtropical zonal type and 8% north subtropical zonal type, of which the first 6 positions of important value index were all middle subtropical zonal type. This showed that the community was subtropical characteristic. There are 59.5% evergreen and 40.5% deblade of 79 known species in which the mid-phaenerophytes is the first position of all, accounting for 27.8%, and the evergreen broad-leaved species constituted the majority of meso-phaenerophytes which accounts for 15.2%.

乔木层多数优势种为稳定型种群，所以乔木层优势区系成分相当稳定，表明该群落为一种顶极群落。59个种子植物属只有10个分布区类型和4个变型，地理成分不复杂，其中热带分布27属占46.6%，温带分布31属占53.4%；热带分布以泛热带和热带亚洲分布为主，分别占52.6%和47.4%，温带分布为北温带和东亚分布各占50%。25个乔木层树种中，中亚热带地理分布类型的占76%，南亚热带地理分布类型的占16%，北亚热带地理分布类型占8%，重要值指数排列前6名的均为中亚热带地理分布类型，所以该群落为亚热带性质。

The natural distribution of oriental arborvitae in Shanxi Province is limited to the south of inside the Great Wall.

侧柏在山西省的天然分布仅限于内长城以南，为实现雁门关外造林树种的多样性，从 1 996年起在怀仁县进行了侧柏造林试验。

The spatial distribution of effective root density for Black locust is different from that of Arborvitae,butthe regularity of vertical distribution is same.

在垂直方向上，两树种吸收性根系主要分布在距地表0-30cm内。

Auricularia not choose tree species, as long as they are rotten branches, almost all the growth.

木耳不太选择树种，只要是腐朽的枝干，几乎都可以生长。

In this thesis, research on alleviation of autotoxicity by planting mixture of Chinese fir and Broadleaf trees and developing undergrowth vegetation were also done. The results showed that Michelia macclurei and Cinnamomum camphora had positive allelopathic effect on the growth of Chinese fir saplings and developing undergrowth vegetation improved soil decline of Chinese fir plantation.

另外，论文还从植物化感作用的角度，对克服杉木人工林连栽障碍的其它生产措施，如营造混交林及人促林下植被的发育生长，进行了研究：提出了与杉木化学生态关系良好的两种伴生树种，并从化感作用角度证明人促林下植被发育有利于克服杉木人工林的连栽障碍。

The main outputs were validation of the suitability of perennial species for the project area including citrus, pineapple, macadamia, bananas, and palm hearts (Bactris gasipaes Viable cropping systems and sequences were identified.

主要产出的项目区为多年生树种适宜性的验证（包括柑橘，菠萝，坚果，香蕉，棕榈心）可行的种植制度和序列进行了鉴定。

The seedlings of 4 dominant tree species of tropical seasonal rain forest, such as Pometia tomentosa, Barringtonia macrostachya, Myristica yunnanensis and Knema globularia, were transplanted at three altitudinal sites (low 600 m in Menglun; middle 1 100 m in Caiyanghe; high 1 600 m in Mengsong) in Xishuangbanna. The parameters of photosynthesis and biomass of these seedlings were measured. The results showed that the low temperature at high altitude caused dormancy or photosynthetic system destroy.

在云南西双版纳勐仑(600 m，低海拔)、菜阳河(1 100 m，中海拔)和勐宋(1 600 m，高海拔)，对热带季节雨林4种主要树种绒毛番龙眼、云南玉蕊、云南肉豆蔻和小叶红光树幼苗进行移栽试验，测定幼苗的光合作用和生物量。

The host range of ectomycorrhizae is primarily restricted to certain tree species, including members of the Pinaceae, Betulaceae, and Myrataceae.

外生菌根的寄主主要是几种树种包括松科、桦木科和桃金娘科。

Analyzing the relations among betulin content and growth status, geographical location and climatic factors, it was found that the effect of growth status on betulin content was not significant, and betulin content was not only affected by self-provenance and heredity background but also by geographical location and climatic factor.

进一步分析可得，同龄树种的生长状况对白桦酯醇的含量影响不显著；而白桦酯醇的含量不仅受自身种源及遗传背景的影响，同时也受到其所处地理位置和气候因素的影响，即属于基因与环境互作的表现性状。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。