As an open platform for forest ecosystems research and an important national forest ecosystem observation and research field station, on November 10th to 13th, Resercher of Jianfengling Forest Station in Hainan province greeted their guests, professor Kevin C Jones from Lancaster University, UK, professor Gan Zhang from State Key Laboratory of organic geochemistry, Guangzhou Branch of China academy of science (CAS), and Dr. Jianhui Tang from Yantai Institute of Coastal Zone Research for Sustainable Development, CAS. These visitors gathered together for the research collaboration on organic pollutants in forest ecosystems.

As we know, the forest ecosystem plays an important role in the global carbon cycle and in the behaviour and fate of persistent organic pollutants (POPs) in the environment. This international collaboration will use the Jianfengling tropical forest station as the research base and focus on the comparative study of POPs environmental behavior and impact factor under different climatic zones and ecological systems. It will last one year, from November 2008 to the end of December 2009. 　

Jianfengling tropical forest National Nature Reserve in Hainan province is a typical tropical rain forest climate zone and far away from urban pollution. Therefore, its organic pollutants are the result of its own forest ecosystem cycles and energy balance processes, and a small amount of pollutants could come from outside due to long-range transport through the atmospheric circulation.

Choosing Jianfengling station as the monitoring site is of great significance to this international collaboration project. Since the POPs long range atmospheric transport is an important global scientific issue, this project will focus on assessing long-range transport rate of POPs in the low-latitude region and will explore the impact of the tropic region as a possible source of POPs on the Polar Regions.