Robinia pseudoacacia L. in the Western Caucasus

Akatov, V. V.; Акатова, Т. В.; Shadzhe, A. E.

doi:10.1134/s2075111716020028

Cited by 15 publications

(5 citation statements)

References 17 publications

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“…Sitzia et al (2012) does not record a significant difference in the richness and diversity of the understory plant species in 10 to 36-year-old black locust and native pioneer stands in the hilly piedmont landscape in the Eastern Alps. Homogenisation of tree layer and a tendency towards forming pure Robinia stands in spontaneously growing forests across habitats in northern Italy (Sitzia et al, 2012) is not reported in riverine forests in the Western Caucasus (Akatov et al, 2016). Despite the significant increase in understory nonnative species richness and abundance in Robinia stands compared with paired native pine–oak and pine stands, this tree does not appear to directly or indirectly affect native species richness or cover (Von Holle et al, 2006).…”

Section: Ecological Risksmentioning

confidence: 99%

Black locust (Robinia pseudoacacia) beloved and despised: A story of an invasive tree in Central Europe

Vítková

Müllerová

Sádlo

et al. 2017

Forest Ecology and Management

310

237

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Robinia pseudoacacia, invaded many countries a long time ago and is now a common part of the Central European landscape. Positive economic but negative environmental impacts of Robinia result in conflicts of interest between nature conservation, forestry, urban landscaping, beekeepers and the public when defining management priorities. Because current legislation will determine the future distribution of Robinia in the landscape, a comprehensive view of this species is necessary. Although this species is well studied, most of the scientific papers deal with the economic aspects. Other information is published in local journals or reports. Therefore we reviewed the ecological and socio-economic impact of Robinia placing particular emphasis on the species’ history, vegetation ecology, invasiveness and management. In Central Europe, Robinia is limited climatically by late spring frost combined with a short vegetation period, soil hypoxia, shade and frequent major disturbances. The long historical tradition of using Robinia for afforestation has resulted in its popularity as a widespread forest tree and it being an important part of the economy in some countries. The main reasons are its fast growth, valuable and resistant wood, suitability for amelioration, reclamation of disturbed sites and erosion control, honey-making and recently dendromass production. On the other hand, a side-effect of planting this nitrogen-fixing pioneer tree, very tolerant of the nature of the substrate, is its propagation and spread, which pose a problem for nature conservation. Robinia is considered invasive, threatening especially dry and semi-dry grasslands, some of the most species-rich and endangered types of habitat in the region, causing extinction of many endangered light-demanding plants and invertebrates due to changes in light regime, microclimate and soil conditions. Other often invaded habitats include open dry forests and shrubland, alluvial habitats, agrarian landscapes, urban and industrial environments and disturbed sites, e.g. post-fire sites, forest clearings or degraded forestry plantations. Without forestry, black locust abundance would decrease during succession in forests with highly competitive and shade tolerant trees and in mature forests it occurs only as admixture of climax trees. The limited pool of native woody species, lack of serious natural enemies and a dense cover of grasses and sedges can suppress forest succession and favour the development of Robinia monodominant stands over 70 years old. A stratified approach, which combines both tolerance in some areas and strict eradication at valuable sites, provides the best option for achieving a sustainable coexistence of Robinia with people and nature.

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Section: Ecological Risksmentioning

confidence: 99%

Black locust (Robinia pseudoacacia) beloved and despised: A story of an invasive tree in Central Europe

Vítková

Müllerová

Sádlo

et al. 2017

Forest Ecology and Management

310

237

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“…As a salt-tolerant species, R. pseudoacacia is able to withstand salinity levels up to~50 mM Na + in laboratory conditions, or~100 mM Na + in field conditions [6]. It is also widely used as a major tree species to improve degraded soils [7], including saline soils, and has been widely cultivated in China since the early 20th century [8,9]. In Jiangsu, the soils most affected by salinity are along the coast, and these areas are also negatively impacted by hurricanes.…”

Section: Introductionmentioning

confidence: 99%

The Positive Effect of Different 24-epiBL Pretreatments on Salinity Tolerance in Robinia pseudoacacia L. Seedlings

Yue

Zhang

et al. 2018

Forests

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As a brassinosteroid (BR), 24-epibrassinolide (24-epiBL) has been widely used to enhance the resistance of plants to multiple stresses, including salinity. Black locust (Robinia pseudoacacia L.) is a common species in degraded soils. In the current study, plants were pretreated with three levels of 24-epiBL (0.21, 0.62, or 1.04 µM) by either soaking seeds during the germination phase (Sew), foliar spraying (Spw), or root dipping (Diw) at the age of 6 months. The plants were exposed to salt stress (100 and 200 mM NaCl) via automatic drip-feeding (water content~40%) for 45 days after each treatment. Increased salinity resulted in a decrease in net photosynthesis rate (P n ), stomatal conductance (G s ), intercellular:ambient CO 2 concentration ratio (C i /C a ), water-use efficiency (WUE i ), and maximum quantum yield of photosystem II (PSII) (F v /F m ). Non-photochemical quenching (NPQ) and thermal dissipation (H d ) were elevated under stress, which accompanied the reduction in the membrane steady index (MSI), water content (RWC), and pigment concentration (Chl a, Chl b, and Chl). Indicators of oxidative stress (i.e., malondialdehyde (MDA) and antioxidant enzymes (peroxidase (POD) and superoxide dismutase (SOD)) in leaves and Na + content in chloroplasts increased accompanied by a reduction in chloroplastid K + and Ca 2+ . At 200 mM NaCl, the chloroplast and thylakoid ultrastructures were severely disrupted. Exogenous 24-epiBL improved MSI, RWC, K + , and Ca 2+ content, reduced Na + levels, maintained chloroplast and thylakoid membrane structures, and enhanced the antioxidant ability in leaves. 24-epiBL also substantially alleviated stress-induced limitations of photosynthetic ability, reflected by elevated chlorophyll fluorescence, pigment levels, and P n . The positive effects of alleviating salt stress in R. pseudoacacia seedlings in terms of treatment application was Diw > Sew > Spw, and the most positive impacts were seen with 1.04 µM 24-epiBL. These results provide diverse choice for 24-epiBL usage to defend against NaCl stress of a plant.

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“…Black locust reproduces generatively via seeds and vegetatively via stump shoots and root suckers. These three reproduction strategies improve the survival of black locust in many ecosystems globally [6,17,[108][109][110][111][112][113][114]. Thereby, the reproduction and spreading increases with greater damage to the seed coat and the harvest of black locust trees.…”

Section: Discussionmentioning

confidence: 99%

Forestry Applications of Unmanned Aerial Vehicles (UAVs) 2019

2020

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Robinia pseudoacacia L. in the Western Caucasus

Cited by 15 publications

References 17 publications

Black locust (Robinia pseudoacacia) beloved and despised: A story of an invasive tree in Central Europe

Black locust (Robinia pseudoacacia) beloved and despised: A story of an invasive tree in Central Europe

The Positive Effect of Different 24-epiBL Pretreatments on Salinity Tolerance in Robinia pseudoacacia L. Seedlings

Forestry Applications of Unmanned Aerial Vehicles (UAVs) 2019

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