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173 results on '"Liu, Biyun"'

10. The Construction of Virtual Clusters of Stadium Industry: From the Perspective of Geographical Space

Author

Zeng Jianming, Kuang Mingliang, Xu Ke, Liu Hui, and Liu Biyun

Subjects
internet plus, geographical space, stadiums, industrial virtual clusters, internet platform, Geography (General), G1-922
Abstract

In recent years,as an important means for the development of the stadium industry supported by Internet technology, building complex commercial complexes with the help of virtual network platforms around the stadium service as the core industry has become a popular trend in some cities in Chine.The academic circle has paid little attention to research on the abovementioned field, but exploring the integration of the online and offline chains of industrial clusters from the perspective of geographical space can be very fruitful, providing a theoretical reference for discussing the construction of virtual clusters of stadiums.The starting point of this research is based on the development status of the comprehensive penetration of Internet technology into the industrial field. Some scholars hypothesize that"cyberspace proximity will replace geospatial proximity,"while others insist that network information technology and platform are the"catalysts"for the transformation and upgradation of offline industries;at the same time, it focuses on the geographical factors affecting the offline entity industry itself and its related industries, which is of great significance to the construction and development of the online virtual platform.Accordingly, this article explains the construction of virtual clusters of stadiums from the perspective of geographic space.It then analyzes the reasons why the geographical clustering effect of stadiums cannot be formed.By summarizing the role of industrial virtual clusters in promoting industrial aggregation, strengthening scale economy effect, improving relationship between division of labor and cooperation, driving cooperation and competition atmosphere, forming flexible innovation mode,etc. it is proposed that the construction of virtual clusters is one of the most important forms of sports stadium industry development in the future.At present, the virtual cluster of sports stadium industry in China is the value chain of cooperation and competition among members in the horizontal direction, and the value chain of production and sales at both ends of supply and demand in the vertical direction, which together constitute the basic structural system of the cluster;according to the main industry scale, geographical location, property right attribute, network degree,etc., virtual stadium industry cluster can be divided into haplotype, chain type, and alliance type, and according to its structural system and functional characteristics, its development process needs to go through three upgrading stages:technology integration, product transformation, and structure optimization.Finally, it is recommended to gain an understanding of the geographical significance of the virtual cluster construction of stadiums, continue to improve the core competitiveness of offline stadium services, fully utilize the government's policy support and lead the role of alliances, establish a supervision mechanism of virtual industry cluster member access, etc., for the innovation and development of virtual industry cluster theory and the practice guidance.

Published
2021
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12. Spatial and seasonal variation of water parameters, sediment properties, and submerged macrophytes after ecological restoration in a long-term (6 year) study in Hangzhou west lake in China: Submerged macrophyte distribution influenced by environmental variables

Author

Bai, Guoliang, Zhang, Yi, Yan, Pan, Yan, Wenhao, Kong, Lingwei, Wang, Lai, Wang, Chuan, Liu, Zisen, Liu, Biyun, Ma, Jianmin, Zuo, Jincheng, Li, Jin, Bao, Jing, Xia, Shibin, Zhou, Qiaohong, Xu, Dong, He, Feng, and Wu, Zhenbin

Published
2020
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19. Size-dependent responses of zooplankton to submerged macrophyte restoration in a subtropical shallow lake

Author

Zeng, Lei, He, Feng, Zhang, Yi, Liu, Biyun, Dai, Zhigang, Zhou, Qiaohong, and Wu, Zhenbin

Abstract

To explore the size-dependent responses of zooplankton to submerged macrophyte restoration, we collected macrophyte, zooplankton and water quality samples seasonally from a subtropical shallow lake from 2010 to 2012. Special attention was given to changes in rotifers and crustaceans (cladocerans and copepods). The rotifers were grouped into three size classes (<200 μm, 200 μm–400 μm, >400 μm) to explore their size-related responses to macrophyte restoration. The results showed that during the restoration, the annual mean biomass and macrophyte coverage increased significantly from 0 to 637 g/m2and 0 to 27%, respectively. In response, the density and biomass of crustaceans and the crustacean-to-rotifer ratio increased significantly, while the rotifer density decreased significantly. Moreover, rotifers showed significant size-dependent responses to macrophyte restoration. Specially, rotifers <400 μm were significantly suppressed, while those ≥400 μm were significantly encouraged. Overall, the population of large-sized zooplankton tended to boom, while that of small rotifers was inhibited during macrophyte restoration. Redundancy analysis (RDA) revealed positive correlations between macrophytes and crustaceans, rotifers and COD or Chl-a, but negative correlations between macrophytes and COD or Chl-a, and between crustaceans and Chl-a. Moreover, the results indicate that increased predation on phytoplankton by large-sized zooplankton might be an important mechanism for macrophyte restoration during development of aquatic ecosystems, and that this mechanism played a very important role in promoting the formation of a clear-water state in subtropical shallow lakes.

Published
2024
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21. Effects of Lake Geo-Engineering on Plankton in a Typical Shallow Urban Lake: Evidence Based on 10-year Data

Author

Bai, Guoliang, primary, Liu, Yunli, additional, Liu, Zisen, additional, Kong, Lingwei, additional, Tang, Yadong, additional, Ding, Zimao, additional, Zou, Yilingyun, additional, Wang, Chuan, additional, Zhang, Cong, additional, Chen, Disong, additional, Liu, Lei, additional, Liu, Biyun, additional, Rao, Lihua, additional, Xia, Shibin, additional, Zhou, Qiaohong, additional, Xu, Dong, additional, He, Feng, additional, Wu, Zhenbin, additional, and Zhang, Yi, additional

Published
2022
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35. Effects of residual aluminum flocculant on aluminum salt distribution of water and sediment in West Lake (Hangzhou)

Author

Liu Biyun, Zhou Qiaohong, Zhang Yue, Xu Dong, Wu Zhenbin, He Feng, Zhang Yi, and Xiao Enrong

Subjects
chemistry.chemical_classification, Hydrology, Flocculation, 0208 environmental biotechnology, Sediment, Salt (chemistry), chemistry.chemical_element, 02 engineering and technology, Aquatic Science, Residual, Pollution, 020801 environmental engineering, chemistry, Aluminium, Earth and Planetary Sciences (miscellaneous), Geology, Water Science and Technology
Published
2017

41. Sediment type and the clonal size greatly affect the asexual reproduction, productivity, and nutrient absorption of Vallisneria natans.

Author

Lin, Qingwei, Fan, Mingjun, Jin, Ping, Riaz, Luqman, Wu, Zhenbin, He, Feng, Liu, Biyun, and Ma, Jianmin

Subjects
POTAMOGETON, ASEXUAL reproduction, VALLISNERIA, SEDIMENTS, ABSORPTION, BIOMASS
Abstract

Most aquatic vegetation restorations involve the transplantation of submerged macrophytes. Sediment type and the clonal size are of great significance as they determine the fate of submerged macrophytes. In order to ensure successful restoration, a simulation experiment was conducted using aquarium mesocosms to investigate the response of stolon propagation capacity, the morphological features and productivity of Vallisneria natans for four types of sediment (lake mud [L], lake mud + sand [L + S, 50:50, v/v mixture], sand [S], clay [C]), and three types of clonal sizes. Results showed that sediment types significantly affected V. natans biomass accumulation, stolon propagation ability, ramet morphological characteristics, and productivity, where the asexual reproduction ability and productivity ranked as L > L + S > S > C in four sediment types. Total biomass, maximum net production, number of ramets, root diameter, number of stolons, and stolon propagation rate were all highest in L. In L and L + S, the plant chlorophyll content was higher than in S and C. The root diameter and the ratio of aboveground/underground biomass in S were the smallest among the four sediments. Moreover, when more V. natans seedlings were linked, more ramets and biomass were produced. The stolon propagation rate was ranked as the stolon with single seedling greater than the stolon with two‐linked seedlings greater than the stolon with three‐linked seedlings in L and L + S. The concentration of total nitrogen, total phosphorus, and NO3−‐N in water was remarkably reduced in four aquariums. Findings provide a scientific basis for restoring submerged macrophytes in different sediment settings. [ABSTRACT FROM AUTHOR]

Published
2020
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