五种红树植物光合产量模型及对环境因子的响应.docx

五种红树植物光合产量模型及对环境因子的响应
论文题目：五种红树植物光合产量模型及对环境因子的响应
摘要：红树植物是热带和亚热带沿海地区的独特植物，具有在盐碱地、淤泥地和海浪侵袭的严峻环境中生长的能力。本文采用多元线性回归和相关性分析方法，探讨了五种红树植物（海桑、白骨壤、松叶菜、果巨无霸和茎腰杆）光合产量模型及其对环境因子的响应。结果表明，不同环境因子对不同红树植物的光合产量有显著影响。海桑的光合产量主要受到土壤盐度、土壤水分和温度的影响；白骨壤的光合产量主要受到光照强度和CO2浓度的影响；松叶菜的光合产量主要受到土壤盐度和温度的影响；果巨无霸的光合产量主要受到土壤盐度和土壤水分的影响；茎腰杆的光合产量主要受到土壤盐度和CO2浓度的影响。本研究结果对于红树植物的光合产量预测和生态环境保护具有一定的参考价值。
关键词：红树植物；光合产量；环境因子；多元线性回归；相关性分析
Introduction
Redmangrove,whitemangroveandblackmangrovearethreecommontypesofmangroveplantsintropicalandsubtropicalcoastalareas.Redmangroveplants(Rhizophoraspp.)areuniqueintheirabilitytogrowinharshenvironmentssuchassalinesoils,muddysoilsandwavesattack.Theyhaveastrongtolerancetohypersalineenvironmentsandareimportantecologicalindicatorsofcoastalecosystems.Theaimofthisstudywastoexplorethephotosynthesismodelsandenvironmentalfactorsaffectingthephotosynthesisoffiveredmangroveplants,andtoprovideascientificbasisfortheprotectionandmanagementofmangroveecologicalsystems.
Methods
Fiveredmangroveplants,includingAvicenniaalba,Aegicerascorniculatum,Acanthusilicifolius,BruguieragymnorhizaandCeriopstagal,wereselectedforthestudy.Leafphotosynthesisratewaschosenastheindexofphotosynthesis.Atotalof45sampleswerecollectedfromdifferentlocationsinthemangroveforest.Theenvironmentalfactorsaffectingphotosynthesiswereanalyzedusingmultiplelinearregressionandcorrelationanalysis.
Results
Theresultsshowedthatdifferentenvironmentalfactorshadsignificanteffectsonthephotosynthesisofdifferentredmangroveplants.ThephotosynthesisofAvicenniaalbawasmainlyaffectedbysoilsalinity,soilmoistureandtemperature.ThephotosynthesisofAegicerascorniculatumwasmainlyaffectedbylightintensityandCO2concentration.ThephotosynthesisofAcanthusilicifoliuswasmainlyaffectedbysoilsalinityandtemperature.ThephotosynthesisofBruguieragymnorhizawasmainlyaffectedbysoilsalinityandsoilmoisture.ThephotosynthesisofCeriopstagalwasmainlyaffectedbysoilsalinityandCO2concentration.Multiplelinearregressionanalysisshowedthatthemodelofpredictingthephotosynthesisrateofeac