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A preliminary study on the characteristics of fogwater in the masson pine forest in Chongqing, China

Journal of Environmental Sciences 1991年第2期3卷 11-16页

作者： Liu Houtian and Du XiaomingInstitute of Ecology,Chinese Research Academy of Environmental Sciences,Beijing 100012,China

The masson pine (Pinns massoniana Lamb.) forest of 2000 ha situated on Nanshan, the south bank of the Yangtze River near Chongqing, China. From 1982, some trees began to die. Since then, half of the trees have died and the whole forest is in danger. Prom November 1986 to January 1987, a study dealt with the characteristics of fogwater in that area was carried out, in order to explain the relationship between acid fog and masson pine decline. The results of our study showed that the acid fog might be responsible in part for the decline of the masson pine forest.

关键词： acid fog masson pine forest particulate matter.

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Simulation of the biomass dynamics of masson pine forest under different management

引用

Journal of forestry Research 2006年第4期17卷 305-311页

作者： ZHANG Gui-lian WANG Kai-yun LIU Xin-wei PENG Shao-lin Key laboratory of Urbanization and Ecological Restoration School of Resources and Environmental Science East China Normal University Shanghai 200062 P. R. China South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 P. R. China Hydro-Biological Sciences and Engineering Department Laiyang Agricultural College Qingdao 266109 China State Key Laboratory forBbiological Control Zhongshan University Guangzhou 510275

TREE submodel affiliated with TREEDYN was used to simulate biomass dynamics of masson pine （Pinus massoniana） forest under different managements （including thinning, clear cutting, combining thinning with clear cutting）. The purpose was to represent biomass dynamics involved in its development, which can provide scientific arguments for management of masson pine forest. The results showed the scenario that 10% or 20% of biomass of the previous year was thinned every five years from 15 to 40 years made total biomass of pine forest increase slowly and it took more time to reach a mature community; If clear cutting and thinning were combined, the case C （clear cutting at 20 years of forest age, thinning 50% of remaining biomass at 30 years of forest age, and thinning 50% of remaining biomass again at 40 years of forest age） was the best scenario which can accelerate speed of development of masson pine forest and gained better economic values.

关键词： TREE submodel Biomass Rate of nitrogen uptake Dinghushan masson pine forest

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