ecological structure
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2021 ◽  
Vol 5 (12) ◽  
pp. 12-16
Author(s):  
Youyou Jiang

As a form of urban culture, urban reading plays an important role in the improvement of the citizens’ quality, urban quality, and urban spirit. In the new era, there are imbalances in the supply and demand, content construction, regional structure, and ecological structure of urban reading. It is necessary to analyze and grasp its development trend, optimize the development path of urban reading, and promote the improvement of urban cultural soft power.


2021 ◽  
Vol 91-92 ◽  
pp. 54-63
Author(s):  
Raisa Matiashuk ◽  
Liubov Gubar ◽  
Inna Pirko

The taxonomic and ecological structure of an artificial set of species of spontaneous flora of the local landscape Feofaniya, distinguished by decorative features, is presented. Decorative perennials, with the exception of aquatic and coastal ones, number 147 species. They are considered taking into account the adaptive characteristics, as a potentially basic component of the regional assortment of ornamental plants for landscaping. In terms of taxonomic composition, the species belong to 100 genera from 38 families. A significant part of perennials is rare in ornamental gardening. Among the studied perennials, the rare fraction includes 13 species with international (four species), state (seven species), or regional (six species) conservation status. According to the results of bioecological analysis, the predominance of mesophytic (76 %), heliophytic (44 %), mesotrophic (82 %), and neutrophilic (65 %) species is shown. When considering the ecological affiliation, the studied species are united into 15 principal ecomorphological groups. The use of plants represented in such groups as the main assortment in the landscaping of the corresponding ecotopes is a prerequisite for the stability and durability of such artificial communities as flower arrangements. The proposed assortment ensures the creation of modern low-cost flower arrangements, as well as the preservation of the biodiversity of the local flora by expanding the cultigen range of these species.


2021 ◽  
pp. 285-296
Author(s):  
Renata Różycka-Czas ◽  
Barbara Czesak ◽  
Wojciech Sroka

2021 ◽  
Vol 7 (4) ◽  
pp. 111-125
Author(s):  
João Corgo

In a world increasingly urbanized, management of cities and spatial planning take an important place in political and technical concerns, and it is in this perspective that the Municipal Ecological Structure (MES) arises in Portugal’s urban planning system. However, this instrument still struggles with some delimitation, regulation and management issues, that challenge its implementation. In order to overcome these problems, this article wants to explore the designing hypothesis of a Management Plan for the Municipal Ecological Structure (MPMES). To support the plan, this study explores the role of ecosystem services and their potential to provide a vision of the value of Municipal Ecological Structure to the territories, to the people, and as an impulse for local sustainable economic growth. In order to gather insights on the contribution of the management plan for the Municipal Ecological Structure implementation, an approach was made, based on interviews, confronting visions and discourses, by planning experts’ contrasts with the stakeholders. Therefore, it was possible to identify, characterize and value the functions performed by the Municipal Ecological Structure of Sesimbra. Ultimately, the objectives, contents, development, approval and articulation with other territorial management instruments were identified as requirements for the Management Plan for the Municipal Ecological Structure development.


Author(s):  
Tamara Jurca ◽  
Louise Donohue ◽  
Elaine McGoff ◽  
Saliha Y. Tunali ◽  
Kenneth Irvine

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Nuria Melisa Morales-García ◽  
Pamela G. Gill ◽  
Christine M. Janis ◽  
Emily J. Rayfield

AbstractJaw morphology is closely linked to both diet and biomechanical performance, and jaws are one of the most common Mesozoic mammal fossil elements. Knowledge of the dietary and functional diversity of early mammals informs on the ecological structure of palaeocommunities throughout the longest era of mammalian evolution: the Mesozoic. Here, we analyse how jaw shape and mechanical advantage of the masseter (MAM) and temporalis (MAT) muscles relate to diet in 70 extant and 45 extinct mammals spanning the Late Triassic-Late Cretaceous. In extant mammals, jaw shape discriminates well between dietary groups: insectivores have long jaws, carnivores intermediate to short jaws, and herbivores have short jaws. Insectivores have low MAM and MAT, carnivores have low MAM and high MAT, and herbivores have high MAM and MAT. These traits are also informative of diet among Mesozoic mammals (based on previous independent determinations of diet) and set the basis for future ecomorphological studies.


Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Chang Liu

In this paper, we study the radial neural network algorithm for low-carbon circular economy in forest area, design a coupled development evaluation model, study its algorithmic ideas operation mode and the update formula obtained by standard algorithm, and finally optimize the RBF neural network by particle swarm algorithm. After an in-depth analysis of the particle swarm algorithm, an improved particle swarm algorithm is proposed to improve the search accuracy and capability of the algorithm by nonlinearly adjusting the inertia weights and introducing the average extreme value factor, in response to the problems of premature convergence and poor search capability that appear in the particle swarm algorithm. Through the analysis and evaluation of the interaction between industrial ecosystem and carbon emission, the main influencing factors of carbon emission are identified, and the size and magnitude of the influence of economic growth, industrial structure, energy intensity, and energy structure on carbon emission are determined; the current situation of the industrial ecological structure is evaluated, and the direction of optimization and adjustment of industrial economic structure, energy structure, and ecological structure is clarified. We construct a multidimensional multiconstraint multimodel industrial ecological structure optimization prediction model, set the development scenarios of economy and society, and optimize the prediction of low-carbon industrial ecological structure in forest areas; based on the simulation analysis of the prediction results, we propose the direction of industrial ecological structure adjustment and the path of industrial ecological system construction.


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