Time: Wed. June 05, 2024, 7-8 PM PST (Vancouver)
Speaker: Dr. Yuanchun Yu
College of Ecology and Environment, Nanjing Forestry University
Watch on YouTube
Dr. Yuanchun Yu
Dr. Yuanchun Yu is a professor in forest ecology and soil science, and the Director of Contaminated Soil Remediation and Environmental Protection Research Institute of Nanjing Forestry University（NFU）, He holds a PhD in Ecology and an M.Sc. in Forest Ecology, with over 35 years teaching and research experience. He also once studied or worked at the University of New Brunswick, Canada, Clemson University, USA and Griffith University, Australia. His research interests mainly include forest ecology, maintenance of soil fertility and sustainable management of plantations, soil biology and biochemistry, soil fertility and tree nutrition, and silviculture-soil management interactions. He has secured more than 40 research projects of external funding support, including 2 National key research and development programs of China, 6 National Natural Science Foundation of China(NCFC), 2 Erasmus+ projects of the European Commission, and 8 International cooperation projects, etc. He has published 186 refereed journal and conference papers, with 45 of them in the past 5 years. ( https://cee.njfu.edu.cn/szdw/zzjsaxb/hjkxx/20220312/i249237.html)
Abstract
China’s plantations have developed rapidly, with an area of 87.6 million hectares, ranking first in the world and becoming the country with the largest preserved area of plantation. Plantations play a significant role in China’s ecological environment construction and economic development. China has a distinct climate and abundant tree species resources, there are over 1000 excellent and special economic tree species, but only more than 10 species are truly used for large-scale afforestation, mainly including larch plantations, poplar plantations, Chinese fir plantations, masson pine plantations and eucalyptus plantations, etc. However, due to the long-term use of traditional extensive management methods, Chinese plantations face problems and challenges such as low quality, unreasonable structure, poor input, and poor ecological functions. This report elaborates on the characteristics of Chinese plantations, compares them with the development of plantations in the world, and analyzes the problems in the development of plantations in China, with a focus on the largest areas of Chinese fir and eucalyptus plantations in southern China. It analyzes the development status, existing problems, and sustainable management measures of Chinese fir and eucalyptus plantations, especially the cultivation technology of large-diameter timber, soil fertility maintenance, mixed forest cultivation, and close-to-nature management technology of plantations.