Input-output of N in subtropical forests under air pollution

Input and output of dissolved organic and inorganic nitrogen in subtropical forests of South China under high air pollution

1 South China Botanical Garden, the Chinese Academy of Sciences, Guangzhou, 510650, China 2 Forest and Landscape Denmark, Faculty of Life Sciences, Univ. of Copenhagen, Hørsholm Kongevej 11, 2970 Horsholm, Denmark 3 Depart. of Biological Sciences, State Univ. of New York – Binghamton, Binghamton, NY 13902, USA Received: 30 August 2007 – Accepted: 29 October 2007 – Published: 12 November 2007 Co...

Daytime Ozone Variation in Surface Air in a Subtropical Mangrove Estuary at Manakudy, South India

Surface ozone (SOZ) can be very harmful if it exceeds the threshold limit. It can accumulate over sea and can return back to the land along with the breeze. Rural and vegetation rich areas often record elevated levels of surface ozone because of the variations in Volatile Organic Compound (VOC) levels, wind velocity and direction. Similarly methane is also an important greenhouse gas and plays ...

Perspectives regarding 50 years of research on effects of tropospheric ozone air pollution on US forests.

Tropospheric ozone (O(3)) was first determined to be phytotoxic to grapes in southern California in the 1950s. Investigations followed that showed O(3) to be the cause of foliar symptoms on tobacco and eastern white pine. In the 1960s, "X" disease of ponderosa pines within the San Bernardino Mountains was likewise determined to be due to O(3). Nearly 50 years of research have followed. Foliar O...

Introduction: Forests under anthropogenic pressure--effects of air pollution, climate change and urban development.

Impacts of air pollution and climate change on forest ecosystems--emerging research needs.

Outcomes from the 22nd meeting for Specialists in Air Pollution Effects on Forest Ecosystems "Forests under Anthropogenic Pressure--Effects of Air Pollution, Climate Change and Urban Development", September 10-16, 2006, Riverside, CA, are summarized. Tropospheric or ground-level ozone (O3) is still the phytotoxic air pollutant of major interest. Challenging issues are how to make O3 standards o...