摘要
本文概述了过去１０多年中，国内外在大气ＣＯ２增长对林木影响及气候变化对在林影响方面的研究结果。内容包括：在大气ＣＯ２倍增的情况下，净光合作用和生物量产量、气孔的水气传导率及水分利用效率的变化；ＣＯ２与温度的共同影响及与养分供应的共同影响；暗呼吸，根茎比，光合适应现象。本文还介绍了气候变化对植被带、个别森林树种影响的宏观研究情况，以及古气候与古植被相互关系的研究。
Abstract The researches on the impacts of atmospheric CO2 enrichment on tree speciesand climate change on forests in the past two decades are reviewed. Generally, plantshave high photosynthetic rate and biomass increment for CO2 enrichment. Most of theresearches showed that plants responded with lower conductance, and higher water useefficiency. Hisher temperature favors plants under and enriched CO2 environment, whilelower temperature does not. Species give various responses to CO2 when nutrient supplyis different. The recent research has confirmed the lower dark respiration of plantsunder theelevated level of CO2. The acclimation of photosynthesis has made the prob-lem of plant response to CO2 complicated. The acclimation of photosynthesis has beenpoorly understood. The impacts of climate change on the natural vegetation and on theindividual tree species have been investigated, abroad and at home.
出处
《世界林业研究》
CSCD
北大核心
1994年第2期26-32,共7页
World Forestry Research
