生态环境学报Issue(6)：992-997,6.DOI:10.16258/j.cnki.1674-5906.2015.06.013
施用生物炭肥对黄连木生长及光合特性的影响
Effects of Biochar Fertilizer Application on Growth Properties and Photosynthetic and Physiological Characteristics ofPistacia chinensis Bunge
摘要
Abstract
Pistacia chinensis Bunge is an important biodiesel woody energy plant in China with a broad prospect of exploitation and utilization. A field experiment was conducted to investigate the effects of biochar fertilizer application on growth properties, photosynthetic and physiological characteristics ofPistacia chinensis. The experimental results showed that when compared with the control, the growth properties ofPistacia chinensis rose after applying biochar fertilizer; and its DBH, height, canopy and leaf area ratio also increased by 30.09%, 55.08%, 23.07%, 25.03% respectively on average. However, there are no significant differences for biochar treatments which indicated that the biological carbon fertilizer could improvePistacia chinensis’growth, but its effect has little close relation to the dosage. Under the conditions of different fertilizer treatments, the average photosynthetic rate (Pn) was higher than that of control by 14.25% through the experiment of photosynthesis of Pistacia chinensis; except for the intercellular CO2 concentration (Ci), the stomatal conductance (Cond), transpiration rate (Tr) and water use efficiency (WUE) of each treatment were higher than that of the control, which indicated biochar fertilizer could enhance efficiency of light energy and improve moisture utilization rate to a certain extent.Pistacia’s maximum fluorescence efficiency (Fv/Fm) had no significant difference in different biological carbon fertilizer treatment (P>0.05). The Fv/Fm value of T2 treatment was the highest amounting to 0.750 on average, which is slightly higher than the control. The activity of photosystemⅡ(Fv/Fo) of T2 treatment also looked remarkably higher at the first instance than that of control, which increased by 14.73% and reached 3.006. In addition to variable fluorescence (Fv), itsFv value of T2 treatment was significantly higher than that of control and the other parameters of chlorophyll fluorescence in the treatments had no significant differences (P>0.05). In general, the biological carbon fertilizer is conducive to raising the value ofPn, Fv/Fm andFv/Fo values; improving photosynthetic physiological characteristics effectively and promoting the growth ofPistacia chinensis Bunge.关键词
黄连木/生物炭肥/生长特性/净光合速率/光合特性Key words
Pistacia chinensis bunge/biochar fertilizer/growth properties/net photosynthetic rate/photosynthetic characteristics分类
农业科技引用本文复制引用
吴志庄,王道金,厉月桥,杜旭华,邵琼,刘胜辉..施用生物炭肥对黄连木生长及光合特性的影响[J].生态环境学报,2015,(6):992-997,6.基金项目
十二五国家科技支撑计划项目（2011BAD22B08）；中央级公益性科研院所基本科研业务费专项资金 （）
