Dr.Hongjun Chen

EDUCATION 

Ph.D., Environmental Science and Health, University of Nevada, Reno. 2002.

M. Sc., Forest Soils, Central China Agricultural University. 1992.

B. Sc., Soils and Plant Nutrition, Central China Agricultural University. 1987. 

RESEARCH INTERESTS 

My research interests fall into two basic categories: ecophysiology of wetland plants and forest soils. My current focus is on flood tolerance mechanisms of wetland vegetation, in particular on understanding how Eleocharis cellulosa and Rhynchospora tracyi ecophysiologically respond to redox potential, water level and nutrient availability in the Everglades of Florida, and to use this information to develop effective restoration strategies. My research interest also involves the interaction and competition of exotic annual plants in wetland ecosystems. My research efforts in forest soils include forest tree nutrition, soil phosphorus transformation and biochemical cycling in plantation ecosystems.              

PROFESSIONAL EXPERIENCE 

Postdoctoral Fellow: Wetland Biogeochemistry Institute, Louisiana State University. 2002 - present. Current research effort is to understand how Eleocharis cellulosa and Rhynchospora tracyi  respond to redox potential, water and nutrient levels in the Everglades of Florid. Supervisor: Dr. Irving A. Mendelssohn 

Research Soil Scientist: Research Institute of Forestry, Chinese Academy of Forestry; 1992-1998; Research focused on forest soil P chemistry and biochemistry, forest tree nutrition, rhizosphere studies and forest plantation ecology. 

ACADEMIC SOCIETIES 

Society of Wetland Scientists, 2003

Ecological Society of America, 1999 – present.

Soil Science Society of America, 2002.

Sigma Xi, The Scientific Research Society, 2002- present. 

SELECTED PUBLICATIONS

H. Chen, R. G. Qualls and R. Blank.  2002. Effect of soil flooding on photosynthesis, carbohydrate partitioning and nutrient uptake in Lepidium latifolium. Submitted to Wetlands. 

H. Chen and R. G. Qualls. 2003. Anaerobic metabolism in the roots of Lepidium latifolium seedlings. Environmental and Experimental Botany. In press.  

H. Chen. 2003.  Phosphatase activity and P fractions in soil of an 18-year-old Cunninghamia lanceolata plantation in Southern China.  Forest Ecology & Management. In press.

H. Chen, R. G. Qualls and G. C. Miller. 2002. Adaptive responses of Lepidium latifolium to soil flooding: biomass allocation, aerenchyma formation, adventitious rooting and ethylene production. Environmental and Experimental Botany. 48: 119 - 128. 

H. Chen. 1998. Biomass and nutrient accumulation in a Chinese-fir plantation chronosequence in Southwest Hunan, China. Forest Ecology & Management, 105:209-216. 

H. Chen, Y. Li and C. Yang. 1998. A review: forest fertilization and nutrient diagnosis in China.  World Forestry Research. 11(3): 58-65. 

H. Chen, Y. Li, D. Chen, et al. 1997. Growth responses of young slash pine (Pinus elliottii) to N, P and K fertilizer in red-yellow soil in South China. Pedosphere, 7(3): 243-249.  

H. Chen, Y. Li, D. Chen, et al. 1996. Soil P fractions and P availability in Chinese-fir plantations in south China.  Forest Research. 9(2): 121-126.

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