| 模拟氮沉降对温郁金叶丛期叶面积形成的影响 |
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| 引用本文： | 荣海,洪伟,吴承祯,范海兰,李键,陈灿. 模拟氮沉降对温郁金叶丛期叶面积形成的影响[J]. 福建林学院学报, 2011, 31(1) |
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| 作者姓名： | 荣海 洪伟 吴承祯 范海兰 李键 陈灿 |
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| 作者单位： | 荣海,RONG Hai(陕西化龙山国家级自然保护区管理局,陕西,安康,725600);洪伟,吴承祯,范海兰,李键,陈灿,HONG Wei,WU Cheng-zhen,FAN Hai-lan,LI Jian,CHEN Can(福建农林大学林学院,福建,福州,350002;福建省高校森林生态系统过程与经营重点实验室,福建,福州,350002) |
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| 基金项目： | 教育部博士学科点专项基金 |
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| 摘 要： | 采用喷施硝酸铵(NH4NO3)模拟氮沉降对温郁金叶丛期叶面积形成的影响。试验设对照(CK)、低氮(T50)、中氮(T100)和高氮(T150)4个处理组,对应的氮沉降量分别为0、50、100、150 kg.hm-2.a-1。结果表明,T150、T100处理能显著提高温郁金总叶面积、主秆茎单叶面积和额外叶面积(P<0.05)。与CK相比,在T150、T100处理下,温郁金总叶面积分别提高了151.71%和112.89%;主秆茎单叶面积也分别提高了27.81%和19.71%(8月份);氮沉降对主秆茎的叶片数目无显著影响。高浓度和中浓度的氮沉降对温郁金叶丛期叶面积的形成具有促进作用,氮沉降主要通过增加温郁金主秆茎单叶面积和额外叶面积来增加总叶面积。
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| 关 键 词： | 氮沉降 温郁金 叶面积 |
Effects of simulated nitrogen deposition on leaf area formation of Curcuma aromatica 'Wenyujin' during the stage of leaf growth |
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| RONG Hai,HONG Wei,WU Cheng-zhen,FAN Hai-lan,LI Jian,CHEN Can. Effects of simulated nitrogen deposition on leaf area formation of Curcuma aromatica 'Wenyujin' during the stage of leaf growth[J]. Journal of Fujian College of Forestry, 2011, 31(1) |
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| Authors: | RONG Hai HONG Wei WU Cheng-zhen FAN Hai-lan LI Jian CHEN Can |
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| Affiliation: | RONG Hai1,HONG Wei2,3,WU Cheng-zhen2,FAN Hai-lan2,LI Jian2,CHEN Can2,3(1.Administrative Bureau of Hualongshan National Nature Reserve of Shaanxi,Ankang,Shaanxi 725600,China,2.College of Forestry,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,3.Key Laboratory of Fujian Colleges and University of Forest Ecological System Process and Management,China) |
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| Abstract: | To evaluate the responses of leaf area of the medicinal plant Curcuma aromatica 'Wenyujin' during the stage of leaf growth to elevated nitrogen(N) deposition,the dissolved NH4NO3 was sprayed on leaf of C.aromatica from June to September in 2009.The simulated elevated N depositions were equivalent to 0(CK),50(T50),100(T100) and 150(T150) kg·hm-2·a-1.The results showed that nitrogen deposition significantly(P<0.05) enhanced the formation of leaf area during the stage of leaf growth.Compared to the control,the total leaf area in Aug was enhanced by 151.71% and 112.89% treated with T150 and T100,respectively.The single leaf area of main stem was enhanced by 27.81% and 19.71% with T150 and T100 treatments individually.However,the number of leaves on main stem was not significantly affected.Overall,high nitrogen deposition(T100) and intermediate nitrogen deposition(T150) were benefit to the formation of leaf area of C.aromatica during the stage of leaf growth through the enhancement of individual leaf area and extra leaf area. |
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| Keywords: | nitrogen deposition Curcuma aromatica 'Wenyujin' leaf area |
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