贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
2期
173-176
,共4页
陈迎%吴沿友%赵宽%邢德科
陳迎%吳沿友%趙寬%邢德科
진영%오연우%조관%형덕과
绿化混凝土%构树%桑树%生理特性%力学特性%适应性
綠化混凝土%構樹%桑樹%生理特性%力學特性%適應性
녹화혼응토%구수%상수%생리특성%역학특성%괄응성
afforestation concrete%paper mulberry%mulberry%physiological characteristics%mechani-cal properties%adaptability
为全面了解构树和桑树对绿化混凝土的适应性,以构树和桑树为试验材料,研究了随机多孔绿化混凝土和土壤环境下两种植物的叶绿素含量、光合特征、叶绿素荧光特性和单根抗拉能力。结果表明,构树比桑树更能适应绿化混凝土环境,通过适度浇水,桑树也能够适应绿化混凝土环境;绿化混凝土中生长的构树和桑树生长情况均劣于在土壤中,但两种植物根系在绿化混凝土中更为发达,侧根须根多且长,根系形态不同;不同生长环境下构树和桑树的根系弹塑性有显著差异,绿化混凝土环境下构树的根系抗拉强度大于桑树,且绿化混凝土环境下构树和桑树的根系抗拉强度和延伸性均显著大于土壤中的。
為全麵瞭解構樹和桑樹對綠化混凝土的適應性,以構樹和桑樹為試驗材料,研究瞭隨機多孔綠化混凝土和土壤環境下兩種植物的葉綠素含量、光閤特徵、葉綠素熒光特性和單根抗拉能力。結果錶明,構樹比桑樹更能適應綠化混凝土環境,通過適度澆水,桑樹也能夠適應綠化混凝土環境;綠化混凝土中生長的構樹和桑樹生長情況均劣于在土壤中,但兩種植物根繫在綠化混凝土中更為髮達,側根鬚根多且長,根繫形態不同;不同生長環境下構樹和桑樹的根繫彈塑性有顯著差異,綠化混凝土環境下構樹的根繫抗拉彊度大于桑樹,且綠化混凝土環境下構樹和桑樹的根繫抗拉彊度和延伸性均顯著大于土壤中的。
위전면료해구수화상수대녹화혼응토적괄응성,이구수화상수위시험재료,연구료수궤다공녹화혼응토화토양배경하량충식물적협록소함량、광합특정、협록소형광특성화단근항랍능력。결과표명,구수비상수경능괄응녹화혼응토배경,통과괄도요수,상수야능구괄응녹화혼응토배경;녹화혼응토중생장적구수화상수생장정황균렬우재토양중,단량충식물근계재녹화혼응토중경위발체,측근수근다차장,근계형태불동;불동생장배경하구수화상수적근계탄소성유현저차이,녹화혼응토배경하구수적근계항랍강도대우상수,차녹화혼응토배경하구수화상수적근계항랍강도화연신성균현저대우토양중적。
The chlorophyll content,photosynthesis characteristics,chlorophyll fluorescence feature and tensile ability of single root of paper mulberry and mulberry under random porous afforestation concrete and soil environments were determined to study the adaptability under the afforestation concrete environment.The results showed that the adaptability of paper mulberry was higher than mulberry under the afforestation concrete environment and mulberry could grow under the afforestation concrete environment by watering properly.The growth situation of mulberry and paper mulberry under the afforestation concrete environment was worse than that under the soil environment but their developed root system was of more and longer lateral and fibrous roots.The tensile strength of the root system of paper mulberry was higher than mulberry under the afforestation concrete environment and the tensile strength and extensibility of the root system of paper mulberry and mulberry under the afforestation concrete environment were significantly higher than under the soil environment,which indicates that there is significant difference in the elastoplasticity of the root system of mulberry and paper mulberry under different growth environments.