| 条垛式堆肥污泥对杨树幼苗光合光响应特性的影响 |
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| 引用本文： | 宋金洪,白莉萍,辛涛,伏亚萍.条垛式堆肥污泥对杨树幼苗光合光响应特性的影响[J].东北林业大学学报,2011,39(12):39-43,46. |
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| 作者姓名： | 宋金洪 白莉萍 辛涛 伏亚萍 |
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| 作者单位： | 中国林业科学研究院森林生态环境与保护研究所 北京 100091 |
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| 基金项目： | 中国林业科学研究院森林生态环境与保护研究所基本科研业务费专项资金项目，北京市自然科学基金资助项目 |
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| 摘 要： | 采用温室盆栽方法,研究条垛式堆肥污泥对欧美杨108(Populus×euramericana‘Guariento’)幼苗叶片光合作用光响应的影响.试验设置6个处理:30 t·n-2(低量LS)、60t·hm-2(中量MS)、90 t·hm-2(高量HS)、120 t·hm-2(超高量SS)、无机复合肥处理1.5 t·h...
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| 关 键 词： | 杨树幼苗 污泥 光响应 光合作用 条垛式堆肥 |
Effects of Windrow Composting Sewage Sludge on Photosynthesis and Light Response Characteristics in Poplar Seedlings |
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| Song Jinhong,Bai Liping,Xin Tao,Fu Yaping.Effects of Windrow Composting Sewage Sludge on Photosynthesis and Light Response Characteristics in Poplar Seedlings[J].Journal of Northeast Forestry University,2011,39(12):39-43,46. |
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| Authors: | Song Jinhong Bai Liping Xin Tao Fu Yaping |
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| Institution: | (Institute of Forest Ecology,Environment and Protection,Chinese Academy of Forestry,Beijing 100091,P.R.China) |
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| Abstract: | A pot experiment in greenhouse was conducted to study the effects of windrow composting sewage sludge(WCSS) on the photosynthesis and light response characteristics of poplar seedlings(Populus × euramericana’Guariento’).Six treatments were installed,i.e.four different dosages of WCSS,including 30 t·hm-2(denoted as LS),60 t·hm-2(MS),90 t·hm-2(HS),120 t·hm-2(SS),and inorganic compound fertilizer 10.45 t·hm-2(F) and control(no application of sewage sludge and inorganic fertilizer).The photosynthesis(in June,August,September) and light response characteristics(in September) of poplar seedlings were measured with Li-6400 portable photosynthesis system in different seasons.Results showed that the net photosynthesis rate(Pn),transpiration rate(Tr),stomatic conductance(Gs) and intercellular CO2 concentration(Ci) in poplar seedlings were highest in August,and the MS treatment contributed most to the photosynthetic parameters.The maximum photosynthetic rates,apparent quantum yield,1ight-saturation point first increased and then decreased with the increase of WCSS dosage,and were all higher than those of the control and the F treatment.The apparent dark respiration rate and light-compensation point in treatment LS,MS,HS and,F were lower than those of the control and SS treatment.Compared with the control and the F treatment,the values of Pn,Tr and Gs increased under different levels of sewage sludge.However,no significant effects of sewage sludge treatments could be found on water use efficiency.Overall,sewage sludge is favorable to improve the photosynthetic ability of plants;moreover,it is better for appropriate use. |
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| Keywords: | Poplar seedlings Sewage sludge Light response Photosynthesis Windrow composting |
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