七种能源林植物的净光合速率及其水分利用率的研究  

A STUDY ON NET-PHETOSYNTHETIC RATE AND WATER UTILIZATION RATIO OF 7 SPECIES OF ENERGY-FOREST PLANTS

作　　者：傅左[1] 周泽生[1] 王晗生[1] 李立[1] 

机构地区：[1]中国科学院水利部西北水土保持研究所,陕西杨陵712100

出　　处：《水土保持研究》1992年第1期91-96,116,共7页Research of Soil and Water Conservation

摘　　要：本文研究了黄土高原地区7种能源林植物的光合速率,蒸腾强度和蒸腾系数以及环境因素对光合速率的影响。测定结果表明:在黄土高原半干旱黄土丘陵地区,环境因素对能源林树种的光合速率有很大影响。山杏、沙棘、刺槐具有蒸腾强度低、净光合力强的特点;小叶锦鸡儿和柠条属高光合速率、高蒸腾旱生植物类型。这6种植物的蒸腾系数较低,是适应性较强且具有高光合能力的优良能源林树种。The paper has studied the main factors effecting photosynthetic rate of 7 plants used for energy-forest and their photosynthetic rate, transpiration rate,transpiration coefficient.The result shows:the net-photosynthetic rate of energy-forest plants is greatly influe- nced by the surrounding factors around them in arid regin of the loess plateau.Armeniaca sibrica Linn.,Hippopnae rnamnoides Linn.and Robinia psenPoacacia Linn.have the character of higher netphotosyn- thetic rate and lower transpiration rate.Cargana Korshinskii Kom.and Cargana microphyll Lam.belong to the varielies of higher photosyn- thetic rate and transpiration rate.Six plants mentioned above, having lower tanspiration coeficient,are fine energyforest plants which have the eharacter of stronger adaptability to surroundings and higher pho' ynthetic rate.

关 键 词：净光合速率 蒸腾强度 蒸腾系数 水分利用率 

分 类 号：S157[农业科学—土壤学]