Junyao Sun

PhD Research Student

Msc. Environmental Engineering - China University of Mining and Technology, China (2011)
Bsc. Resources Environment and Urban & Village Programming Management -Nantong University, China (2009)

Dr Peter Hunter
Prof Andrew Tyler
Dr Nigel Willby

Start Date: 1st July 2015

3B155 Cottrell Building
Biological & Environmental Sciences
Faculty of Natural Sciences
University of Stirling
Stirling, Scotland, FK9 4LA

Tel: +44 (0)1786 466370
fax: +(44) 1786 467843
email: junyao.sun@stir.ac.uk

Research Project

Multi-scale influence of hydrological and landscape variables on macrophyte richness and composition in UK lakes

Macrophytes (aquatic plants) play an important role in maintaining ecosystem structure and function in lakes. However, increasing human modification to lakes and catchment has led to increased eutrophication and consequently the degradation of macrophyte communities has become a common phenomenon throughout the world. The controls on macrophyte diversity are however complex and recent research has shown that the lake-scale impacts of processes such as eutrophication can be constrained and shaped by landscape-scale factors such as lake connectivity.

I am interested in the process of environmental filter and spatial configuration at catchment scale which interacted with the lake abiotic factors in determining the distribution of aquatic water plant among lakes. Catchment as a hydrological boundary is a key driver to influence the species dispersal among lakes. Few studies have focussed on the impact of lake spatial and hydrological connection on macrophyte diversity and composition at the topographic catchment scale due to the difficulties to obtain the catchment data. My study tried to work out the response of lake macrophyte species richness and composition to hydrological and landscape factors from multiple-scale (topographic catchment scale and landscape buffer scale) so as to provide useful management advices to protect lake macrophyte diversity.

Relevant work in Master studies:

Correlations and Distributions of Nutrients (P,Fe,Mn) in shallow lake with Aquatic Macrophytes (In Chinese)
Xu Delan, Yan Shan, Sun Junyao
Journal of  Argo-Environment Science 2011,30(11):2325-2329

Interaction study of Nutrition concentration between lake water and macrophytes. (In Chinese)
Yan Shan, Xu Delan, Pei Zongping, Sun Junyao
Yangzi River, 2011, 42(19)

Spatial Heterogeneity analyses of soil nutrients enrichment in riparian buffers of Luoma Lake (China) (In Chinese)
Xu Delan, Han Baoping, Sun Junyao
Research of Soil and Water Conservation, 2013, 4

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