5种屋顶绿化植物耐热性的测定
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摘要
为丰富屋顶绿化植物材料,促进韭莲、月月粉、大叶落地生根、苦楝、常春油麻藤在我国南方屋顶绿化中的运用,以韭莲、月月粉、大叶落地生根、苦楝、常春油麻藤为材料,采用电导率法结合logistic方程对5种植物进行了耐热性测定,计算了其半致死温度(LT50),并与佛甲草的半致死温度、长沙近年的高温气候进行了比较,观察了5种植物在长沙夏季的表现情况。测定结果表明:随着温度的升高,植物的细胞伤害率逐渐升高,在特定温度段内出现了快速上升的情况,最后又缓慢上升,呈典型的"S"型。5种植物的半致死温度从高到低为:苦楝(66.74℃)>韭莲(65.08℃)>月月粉(62.79℃)>常春油麻藤(59.31℃)>大叶落地生根(55.06℃)。结论:5种植物都具有较好的耐热性,有望运用于屋顶绿化,美化屋顶环境。
In order to enrich the roof greening plant materials and promote the application of Zephyranthes grandiflora,Rosa chinensis‘Old Blush',Kalanchoe daigremontiana,Melia azedarach,Mucuna sempervirens in roof greening in southern China,the conductivity method and logistic equation were used to measure the heat tolerance of these five species and calculate their semi-lethal temperature(LT50).The semi-lethal temperatures of five species were compared with Sedum lineare and the highest temperature in Changsha in recent years. Furthermore,the summer performance of five species in Changsha were observed.The results are as follows: with the increase of temperature, the cell injury rate of plants increases gradually, and increases rapidly in a specific temperature range, and then slowly, showing a typical "S" curve. Thesemi-lethal temperature of different plants from high to low is as follows: Meliaazedarach(66.74℃)>Zephyranthesgrandiflora(65.08℃)>Rosa chinensis‘OldBlush'(62.79℃)>Kalanchoe daigremontiana(55.06℃)>Mucuna sempervirens(59.31℃).All the five species have good heat resistance and are expected to be used in roof greening and beautifying the roof environment.
In order to enrich the roof greening plant materials and promote the application of Zephyranthes grandiflora,Rosa chinensis‘Old Blush',Kalanchoe daigremontiana,Melia azedarach,Mucuna sempervirens in roof greening in southern China,the conductivity method and logistic equation were used to measure the heat tolerance of these five species and calculate their semi-lethal temperature(LT50).The semi-lethal temperatures of five species were compared with Sedum lineare and the highest temperature in Changsha in recent years. Furthermore,the summer performance of five species in Changsha were observed.The results are as follows: with the increase of temperature, the cell injury rate of plants increases gradually, and increases rapidly in a specific temperature range, and then slowly, showing a typical "S" curve. Thesemi-lethal temperature of different plants from high to low is as follows: Meliaazedarach(66.74℃)>Zephyranthesgrandiflora(65.08℃)>Rosa chinensis‘OldBlush'(62.79℃)>Kalanchoe daigremontiana(55.06℃)>Mucuna sempervirens(59.31℃).All the five species have good heat resistance and are expected to be used in roof greening and beautifying the roof environment.
引文
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[15]邓沛怡,周杰良,陶抵辉,等.干旱胁迫对6种藤本植物光合作用及叶绿素荧光参数的影响[J].湖南农业大学学报(自然科学版),2015,41(3):263～270.
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[19]周伟伟.北京地区屋顶绿化地被植物的抗逆性研究[D].北京:中国林业科学研究院,2008.
[2]胡明.我国屋顶花园的研究进展[J].安徽建筑,2016,23(6):39～42.
[3]冼丽铧,鲍海泳,陈红跃,等.屋顶绿化研究进展[J].世界林业研究,2013,26(2):36～42.
[4]杨雪,吴煜,郑玉贤.屋顶绿化研究进展[J].绿色科技,2014(10):118～120.
[5]徐玉芬,杨静,邓磊,等.应用Logistic方程测定4种鸭跖草科屋顶绿化植物的耐热性[J].仲恺农业工程学院学报,2018(4):1～5.
[6]周媛,郭彩霞,董艳芳,等.9种景天属轻型屋顶绿化植物的耐热性研究[J].西北农林科技大学学报(自然科学版),2014,42(9):119～127,136.
[7]何丽斯,李畅,陈尚平,等.电导率结合Logistic方程测定14个杜鹃品种的耐热性[J].江苏农业科学,2017,45(21):132～134.
[8]袁雪涛,夏冬,许永利,等.应用Logistic方程测定四种藤本植物的耐热性[J].北方园艺,2017(14):99～102.
[9]张燕利,高捍东,吴锦华.4种景天科植物耐热性测定[J].西南林学院学报,2010,30(6):52～54.
[10]龚萍,王健.利用电导率法测定六种芳香植物的耐热性[J].湖北农业科学,2011,50(10):2038～2040.
[11]徐静平,徐振华,杜克久.8种屋顶绿化木本植物的耐热性比较[J].中国农学通报,2011,27(6):1～5.
[12]张月雅,刘明磊,颜小梅,等.4种蕨类植物耐热性测定[J].吉林农业大学学报,2015,37(3):313～316.
[13]陈燕,刘东焕,陈进勇,等.6种观果植物的耐热性研究[J].中国农学通报,2015,31(16):32～36.
[14]田治国,杨艳.万寿菊9个品种高温半致死温度与耐热性研究[J].江苏林业科技,2016,43(6):38～40.
[15]邓沛怡,周杰良,陶抵辉,等.干旱胁迫对6种藤本植物光合作用及叶绿素荧光参数的影响[J].湖南农业大学学报(自然科学版),2015,41(3):263～270.
[16]项延军,李新芝.扶芳藤等3种藤本植物耐热性生理生化指标初探[J].江苏农业科学,2011,39(3):241～243.
[17]白淑媛.佛甲草与屋顶绿化[J].风景园林,2006(4):55～57.
[18]夏佳元.佛甲草在屋顶绿化建设中的应用效果初探[J].湖南林业科技,2007(3):45～47.
[19]周伟伟.北京地区屋顶绿化地被植物的抗逆性研究[D].北京:中国林业科学研究院,2008.