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Photosynthesis and Water Use Efficiency of Platycladus Orientalis and robinia pseudoacacia Saplings under Steady Soil Water Stress during Different Stages of Their Annual Growth Period

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Journal of Integrative Plant Biology 2007年第10期49卷 1470-1477页

作者： Ming-Chun Wang Jin-Xin Wang Qing-Hua Shi Jin-Song Zhang College of Forestry Northwest A&F University Yangling Shaanxi China712100 College of Resources and Environment Northwest A&F University Yangling Shaanxi China712100 Research Institute of Forestry Chinese Academy of Forestry Beijing China100091

A simulated drought experiment was conducted in a rain-free shed to test the physiological response of Platycladus orientalis and robinia pseudoacacia saplings to steady soil water stress during different stages. The five soil water treatments were： 100%, 87.84%, 70%, 52.16% and 40% of field capacity. The results showed that the net photosynthetic rate of R. pseudoacacia decreased as soil water potential decreased in the range between -0.041 MPa and -0.292 MPa. The threshold value at which the net photosynthetic rate changed significantly was -0.12 MPa. The relationship between net photosynthetic rate of P. orientalis and soil water potential could be described as a quadratic parabola in the range between -0.041 MPa and -0.648 MPa. Analysis of variance showed significant differences in the net photosynthetic rate of P. orientalis between soil water potentials of -0.061 MPa ~, -0.648 MPa. Average water use efficiency （WUE） increased as soil water potential decreased, but the influence mechanism of soil water stress on leaf WUE and photosynthetic rate for the two species were different evidently.

关键词： growth stages photosynthesis Platycladus onentalis robinia pseudoacacia sapling steady water stress water use efficiency.

Morphology and leaf nutrition of introduced robinia pseudoacacia clones

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Forestry Studies in China 2013年第1期15卷 24-31页

作者： Guo-Jun ZHANG Jiang-Jie SHEN Li-Mei ZHAO Yu-Han SUN Yun LI Zhao-He XU Peng SUN National Engineering Laboratory for Tree Breeding Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education College of Biological Sciences and Technology Beijing Forestry University College of Horticultural Science and Technology Hebei Normal University of Science & Technology College of Forestry Key Laboratory for Silviculture and Conservation of Ministry of Education Beijing Forestry University

In order to study and popularize clones from the introduced robinia pseudoacacia, morphological charac- teristics and leaf nutrition of samples of a three-year-old stand were observed and analyzed during its growing season. Combined with data on rooting ability, height and basal diameter, comparisons were made on morphological characteris- tics, growth traits and leaf nutrition of 11 introduced R. pseudoacacia clones （two from Hungary and nine from South Ko- rea） and two domestic clones, The results show that there are significant differences in growth and morphological char- acteristics among the 13 clones, but no significant differences in the contents of crude protein and crude fibers in the leaves （p 〉 0.05）. Height and basal diameter growth of clones B and G were recorded as the fastest, while clone H1 was the slowest. Clone H2 had the largest leaflets, three times as large as other clones, while K4 had the heaviest dry weight per 100 leaflets because of its thick leaves. The 13 clones can be divided into four classes based on the number of leaf- lets per compound leaf, i.e., 1-3, 13-17, 15-23 and 21-25. There were significant differences in thorn size： H2, with the largest leaflets had the smallest thorns. While of course all clones produced roots, there were significant differences; clones 2N, K5 and B had many adventitious roots, while clones K3, K4 and H1 had few. Correlation between content of crude protein and （length x width of leaf） was positive （p 〈 0.05）, while correlations of the content of crude protein, with the number of leaflets per compound leaf, petiole length of compound leaf and thorn length were negative （p 〈 0.01）. Plant height and basal diameter were positively correlated with each other （p 〈 0.01） and negatively correlated with base width of thorns （p 〈 0.05）.

关键词： robinia pseudoacacia morphological characteristics leaf nutrition growth characteristics rooting ability

Symbiotic nitrogen fixation in black locust (robinia pseudoacacia L.) seedlings from four seed sources

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Journal of Forestry Research 2011年第4期22卷 689-692页

作者： Alireza Moshki Norbert P. Lamersdorf Büsgen-Institut Soil Science of Temperate and Boreal Ecosystems Faculty of Forest Sciences and Forest Ecology University of Goettingen Büsgenweg 2 37077 Goettingen Germany

We conducted a greenhouse experiment to investigate the role of seed source in growth and symbiotic nitrogen fixation of black locust （robinia pseudoacacia L）. Seeds from different sources were planted in the same environmental conditions and inoculated with a suspension of mixed Rhizobium. We used the modified ^15N isotope dilution method to estimate biological nitrogen fixation of robinia trees. Different robinia seed sources differed significantly in terms of tissue dry weight （50.6-80.1 g）, total N （1.31-2.16 g） and proportion of nitrogen derived from the atmosphere （ 0-51%）. A higher nitrogen fixation rate of robinia trees was associated with higher dry weight. Moreover, the leaves of robinia proved to adequately represent the nitrogen fixation capacity of entire plants. Our results confirmed that assessment of seed sources is a useful way to improve the nitrogen fixation capacity and therefore the growth rate of robinia.

关键词： robinia pseudoacacia seed source ^15N dilution method symbiotic nilxogen fixation

Intensive Agricultural Practices as Enhancers of the Dispersion of Invasive Species:Notification of the Observation of a Case with robinia pseudoacacia L.in Alentejo(Southern Portugal)

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Research in Ecology 2020年第3期2卷 42-47页

作者： Mauro Raposo Carlos Pinto-Gomes Leonel Nunes Department of Landscape Environment and PlanningSchool of Science and TechnologyUniversity ofÉvora(Portugal)Rua Romão Ramalhono.597000-671ÉvoraPortugal MED-Mediterranean Institute for Agriculture Environment and DevelopmentPólo da MitraUniversidade deÉvora7006-554ÉvoraPortugal ProMetheus-Unidade de Investigação em Materiais Energia e Ambiente para a SustentabilidadeEscola Superior AgráriaInstituto Politécnico de Viana do CasteloRua da Escola Industrial e Comercial de Nun’Alvares4900-347 Viana do CasteloPortugal

Invasive forest species are a recurring problem,which in Portugal assume a somewhat mediatic role,both because of the impacts they cause on biodiversity,but also because they enhance the accumulation of high amounts of fuel load,increasing the risk of forest fires.However,in some areas of the country,such as the Alentejo(South of Portugal),the scarcity of water did not allow,until now,the dispersion and rapid growth of some of these species,namely robinia pseudoacacia,which has always remained under control,and it was never a real problem.However,with the growth of intensive farming practices,associated with vineyards,olive groves and almond trees,water and nutrients became available,enabling this species to grow and disperse.This communication presents an observation of several sets of R.pseudoacacia specimens growing with different agricultural holdings,raising the hypothesis that intensive farming practices may,in the short term,contribute to the dispersion of invasive species in regions where they were not a problem,if the situations reported are not followed up and studies are carried out to confirm the observations described.

关键词： robinia pseudoacacia Invasive species Intensive agriculture

滨海盐碱地的盐旱胁迫对刺槐的分化特征和非结构碳水化合物的影响

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林业科技通讯 2024年第3期 26-30页

作者：庞元湘曹帮华毛培利朱文峰陈炳卓乔慧敏张家昌山东农业大学山东泰安271018

为了从非结构性碳水化合物的角度更好地解释滨海盐碱地刺槐(robinia pseudoacacia)林分化特征,本文选用10年生和30年生河南省民权县的非盐碱地刺槐人工林(用以指示干旱对刺槐人工林衰退的影响)和黄河三角洲盐碱地刺槐人工林(用以指示盐... 详细信息

为了从非结构性碳水化合物的角度更好地解释滨海盐碱地刺槐(robinia pseudoacacia)林分化特征,本文选用10年生和30年生河南省民权县的非盐碱地刺槐人工林(用以指示干旱对刺槐人工林衰退的影响)和黄河三角洲盐碱地刺槐人工林(用以指示盐碱地下的刺槐林衰退过程)为研究对象,调查盐碱地和非盐碱地的刺槐林林分特征和不同林龄、不同健康程度的刺槐个体非结构性碳水化合物特征和变化规律。结果表明:1)盐碱地的10、30年林龄的刺槐树高和胸径均低于非盐碱地,且30年生盐碱地与非盐碱地的刺槐树高、胸径差异更加明显。2)在盐碱地刺槐林中,健康木的比例高于中等木和濒死木,占47%,而在非盐碱地刺槐林中,健康木的占比减小、中等木和濒死木的比例增高。3)同一林龄下,盐碱地的刺槐枝叶可溶性糖含量高于非盐碱地,非盐碱地的刺槐枝条淀粉和NSC含量高于盐碱地;相同立地条件下,10年生刺槐枝叶可溶性糖和淀粉以及NSC含量高于30年生刺槐。在盐碱地上,刺槐枝条可溶性糖含量随健康程度的增加而增加;在非盐碱地上,濒死木的可溶性糖含量高于健康木和中等木。相同立地条件下,刺槐枝条淀粉含量随健康程度的增加而降低。盐碱地的枝条NSC含量随着健康程度的升高而升高,在35.60~45.70 mg/g之间;非盐碱地的枝条NSC含量表现为濒死木显著高于健康木和中等木。

关键词：刺槐 robinia pseudoacacia 滨海盐碱地分化非结构性碳水化合物

Leaf morphology correlates with water and light availability:What consequences for simple and compound leaves?

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Progress in Natural Science:Materials International 2009年第12期19卷 1789-1798页

作者： Fei Xu,Weihua Guo~*,Weihong Xu,Yinghua Wei,Renqing Wang~* Institute of Ecology and Biodiversity,College of Life Sciences,Shandong University,Jinan 250100,China Institute of Ecology and Biodiversity College of Life Sciences Shandong University Jinan 250100 China

Leaves are organs sensitive to environmental changes in the process of evolution and may exhibit phenotypic plasticity as a response to abiotic stress.However,affirmation of leaf morphological plasticity and its regulations in different environments are still unclear.We performed a simulated experiment to study the variations of leaf morphology in different gradients of water and light availability.Considering different types of leaves and venation,we chose pinnate-veined simple leaves of Quercus acutissima and compound leaves of robinia pseudoacacia as the study objects.The morphological parameters we investigated include leaf size,shape and venation pattern which can be easily measured in the field.Significant variations occurred in many parameters due to the effects of the environment and/or allometry.There were broadly consistent trends for leaf morphological variations along the gradients.The leaf size became smaller with a short supply of resources.Leaf elongation and fractions of the lamina area altered to enhance resources acquisition and conservation. Trade-offs between investments in support and functional structures optimized the venation pattern of major and minor veins.Leaflets partially played a role such as leaf teeth,for they are not only individual units,but also a part of the compound leaf.We suggest that more or less the same trends in morphological variations may be an important explanation for coexisting species to adapt to similar habitats and form the niche differentiation.

关键词： Environmental correlation Leaf morphological trait Leaf type Venation pattern Quercus acutissima robinia pseudoacacia

Exotic tree seedlings are much more competitive than natives but show underyielding when growing together

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Journal of Plant Ecology 2013年第4期6卷 305-315页

作者： Heike Kawaletz Inga Mölder Stefan Zerbe Peter Annighöfer André Terwei Christian Ammer Department of Silviculture and Forest Ecology of the Temperate Zones University of GöttingenBüsgenweg 137077 GöttingenGermany Energieagentur Region Göttingen e.V. Berliner Str.237073 GöttingenGermany Faculty of Science and Technology Free University of Bozen-BolzanoPiazza Università539100 BolzanoItaly

Aims Invasive species continue to be a worldwide threat to ecosystems mainly as a cause for biodiversity loss.Forest ecosystems,for example,are subject to a change in species composition due to the invasion of exotic species.specifying the attributes that cause the strong competitiveness of several exotic species may improve the ability to understand and effectively manage plant invasions in the future.In this study the following hypotheses were tested:(1)biomass production of below-and aboveground plant compo-nents of the exotic tree species is higher than that of the natives,resulting in a higher competitiveness of the exotics;(2)the exclu-sion of root competition has a positive effect on the biomass pro-duction of the inferior native species;and(3)mixtures of native and exotic species yield a higher biomass production than the respective monocultures.Methods a pot experiment,containing about 2000 tree seedlings,was established.We investigated the biomass productivity and growth reactions of two native(Quercus robur l.,Carpinus betulus l.)and two exotic tree species(Prunus serotina Ehrh.,robinia pseudoacacia l.)in different intra-and interspecific,competitive situations with and without the influence of root competition.Important Findingsthe biomass production of both exotic species was significantly higher and led to a strong competitive advantage,resulting in a biomass decrease of the less competitive native species.the high belowground biomass of both exotic species had a negative effect on the biomass production.the competitive pressure of exotic tree seedlings on the native ones was largely driven by root competition.Furthermore,mixtures of native and exotic tree species had a higher productivity than their growth in monocultures would have predicted.Competition was lower for exotic species in mixtures with the less productive native species compared to the competition in monocultures or in mixture with the other highly productive exotic species.accordingly,both highly competitive exotic species produced l

关键词： competition biomass production pot experiment invasive species Prunus serotina robinia pseudoacacia

北方砂石山2种常见灌木对刺槐、赤松纯林生长胁迫性

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林业科技通讯 2023年第4期 86-90页

作者：孔令雷马胜国徐军杨从从赵冬曲阜市自然资源和规划局山东曲阜273100 山东省林业保护和发展服务中心曲阜市气象局

为研究北方砂石山构树(Broussonetia papyrifera)、黄荆(Vitex negundo)与刺槐(robinia pseudoacacia)、赤松(Pinus densiflora)纯林共生期间的种间制约关系,探索对刺槐过熟林更新、赤松林复壮的最佳方法,选取了曲阜市国有石门寺林场有... 详细信息

为研究北方砂石山构树(Broussonetia papyrifera)、黄荆(Vitex negundo)与刺槐(robinia pseudoacacia)、赤松(Pinus densiflora)纯林共生期间的种间制约关系,探索对刺槐过熟林更新、赤松林复壮的最佳方法,选取了曲阜市国有石门寺林场有代表性的刺槐、赤松纯林为研究对象。研究结果表明,49年树龄刺槐、赤松林截至2020年,活立木保有量分别为28株/667m^(2)、40株/667m^(2),死亡率为2000年活立木保有量的74.5%、38.5%,同比增长36%、7.7%,通过样本相关系数的计算公式得出,构树、黄荆与刺槐、赤松纯林树高、冠幅生长量成显著负相关关系。2000年林分出现“天窗”后,通过天然下种林下植物群落逐渐形成,由于构树、黄荆极强的适应性对刺槐、赤松生长形成了很强的胁迫性,加剧了乔灌种间土壤水分恶性竞争,进一步加快了刺槐、赤松死亡速度。

关键词：北方砂石山刺槐 robinia pseudoacacia 赤松 Pinus densiflora 乔灌共生生长胁迫

刺槐种子萌发生热曲线的测定及其萌发生长的热动力学研究(英文)

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Journal of Forestry Research 2001年第3期12卷 176-178,210页

作者：胡云楚周培疆王存信屈松生中南林学院株洲412006 武汉大学化学与环境科学学院武汉430072

种子的萌发与物质转化和能量交换紧密相关,对种子萌发过程中的热效应进行研究,有助于认识种子的萌发机理及其影响因素。采用武汉大学研制的新型热导式微量量热计测定了刺槐种子的萌发生热曲线。分析了其萌发生热规律与种子萌发生理之间... 详细信息

种子的萌发与物质转化和能量交换紧密相关,对种子萌发过程中的热效应进行研究,有助于认识种子的萌发机理及其影响因素。采用武汉大学研制的新型热导式微量量热计测定了刺槐种子的萌发生热曲线。分析了其萌发生热规律与种子萌发生理之间的关系。并根据动力学原理对其生长阶段的热谱进行分析,建立了刺槐萌发生长的动力学模型,25℃ P=208.77/[0.1937+0.8063exp(-0.06563t)]

关键词： thermogenetic 曲线 thermokinetics 种子萌芽 robinia pseudoacacia