查询词典 ailanthus

Ginkgo is more drought tolerant,and maintain relatively higher Pn under drought;Robinia pseudoacacia is less drought tolerant,and Pn decrease greatly under stress;Ailanthus altissima is placed in the middle.

耐旱能力较强的银杏在干旱胁迫下维持较高的光合作用；刺槐的抗旱能力最弱，光合速率下降幅度最大，臭椿居中。

Kaizuca, Camellia japonica L.,Ginkgo biloba L., Celtis sinensis Pers., Zelkova schneideriana Hand.-Mazz., Acer truncatum Bunge, Albizia julibrissin Durazz., Ailanthus altissima Swingle, Cerasus serrulataG.,Pistacia chinensis Bunge, Euonymas japonicus Thunb.Sabina konarovii Chent at W.T.Wang, Sabina chinensis cv.Pfitzeriana. 3.Tree planning on urban forestry construction of Qingdao city is based on trees investigation,analyses, appraise and under the guidance of the theories on city ecology, ecological landscape, scenic aesthetics, city planning and etc.

青岛市城市森林建设的树种近自然化规划：树种布局规划应以树种调查、分析、评价为基础，以城市生态学、生态园林学、风景美学、城市规划学等理论为指导，并综合青岛市所在植被分布自然规律和城市森林建设现状，因地制宜的确定城市树种的主要比例关系：常绿树与落叶树的比例以3：7为宜；乔木与灌木的比例以2：1为宜；针叶树与阔叶树的比例以1：4为宜；木本植物与草本植物之比1：4；速生树与慢生树的比例以1：1为宜。

Prattii- Ailanthus altissima deciduous broad-leaved forest community and Cerasus trichostorna-Cerasus dielsiana-Acer caudatum deciduous broadleaved forest community , had lower total richness and Shannon-Wiener index .

3人工林群落与次生林群落相比，人工林群落具有较低的物种丰富度指数和Shannon-Wiener多样性指数以及较高的优势度指数，次生林具有较高的物种丰富度指数和Shannon-Wiener多样性指数以及较低的优势度指数。

There were only 94 vascular plant species, belonging to 50 family and 75 genera. The dominant species in the communities were deciduous broadleaf species Liquidambar formosana, Robinia pseudoacacia, Ailanthus altissima, Acer buergerianum, and Celtis sinensis, evergreen broadleaf species Cinnamomum camphora and Elaeocarpus glabripetalus, and Phyllostachys heterocycla. Robinia pseudoacacia+Cinnamomum camphora community had the highest Shannon-Wiener index (1757) and Phyllostachys heterocycla+Acer buergerianum community had the highest Simpson index (0163), but no consistency was observed between the curves of H and D. For vertical structure, most communities had no significant understory stratification.

结果表明：辰山植物区系以泛热带和北温带占优势，具有典型亚热带和温带成分交汇和南北植物分布交错特征；但保育区内种类单一，维管束植物仅有49科69属94种；主要群落是以枫香、刺槐、臭椿、三角枫和朴树等为优势树种的落叶阔叶林，以香樟和秃瓣杜英等为优势树种的常绿阔叶林，以及毛竹林；物种多样性普遍较低，Shannon-Wiener多样性指数最高为刺槐+香樟群落（1.757），Simpson均匀度指数最高值为毛竹+三角枫群落（0.163）；多样性指数曲线和均匀度指数曲线不具有一致性的变化趋势；多数群落垂直结构中无明显林下分层现象；演替前期的落叶乔木种群后续个体不足。

In inche overlaps, the niche overlop of B. platyphylla and P. davidiana, B. platyphylla and A. mono, B. platyphylla and J. mandshurica were big. Otherwise, P. orientalis, Q. aliena, Ailanthus altissima, U. macrocarpa with other species were small.

3在生态位重叠指数中，白桦和山杨、色木槭和白桦、白蜡和胡桃楸、色木槭和山杨生态位重叠较大，而侧柏、槲栎、臭椿和大果榆与其他的多个主要树种的生态重叠指数较小。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。