CAJ | 학술논문

为了解不同生境中蕨类植物的叶片功能，对鼎湖山季风常绿阔叶林中的6种优势蕨类植物的比叶面积、光合速率、元素含量、构建成本和水分利用效率等叶片性状进行了测定，研究了它们对环境的适应性。研究结果表明，两种附生蕨类(江南星蕨和崖姜蕨)的叶片具有较低的比叶面积(SLA)和光合速率(Aarea)，较高的构建成本(CCarea)和碳同位素比率(δ13C)。而两种林下土生蕨类(扇叶铁线蕨、桫椤)具有较高的Aarea和较低的δ13C。生长在岩石基质上的中华里白具有最高的养分利用效率和较高的δ13C。生长在溪流边的薄叶卷柏具有最高的SLA，最低的CCarea和δ13C。这些揭示了蕨类植物叶片性状与生境之间具有紧密的相关性。由于附生蕨类的叶片具有高的能量投资和低的光合速率，对环境变化的适应能力弱，附生蕨类可能面临较大的生存压力。
위료해불동생경중궐류식물적협편공능，대정호산계풍상록활협림중적6충우세궐류식물적비협면적、광합속솔、원소함량、구건성본화수분이용효솔등협편성상진행료측정，연구료타문대배경적괄응성。연구결과표명，량충부생궐류(강남성궐화애강궐)적협편구유교저적비협면적(SLA)화광합속솔(Aarea)，교고적구건성본(CCarea)화탄동위소비솔(δ13C)。이량충림하토생궐류(선협철선궐、사라)구유교고적Aarea화교저적δ13C。생장재암석기질상적중화리백구유최고적양분이용효솔화교고적δ13C。생장재계류변적박협권백구유최고적SLA，최저적CCarea화δ13C。저사게시료궐류식물협편성상여생경지간구유긴밀적상관성。유우부생궐류적협편구유고적능량투자화저적광합속솔，대배경변화적괄응능력약，부생궐류가능면림교대적생존압력。
The aim was to understand the leaf function of ferns grown under different habitats. The leaf characters of six ferns, such as speciifc leaf area, gas exchange rates, leaf nutrients, construction cost, and carbon isotope ratio, in monsoon evergreen broad-leaved forest in Dinghushan Mountain were measured, and their adaption to environment were studied. The results showed that two epiphytic ferns (Microsorum fortuneandPseudodrynaria coronans) had low speciifc leaf area (SLA) and photosynthetic rates (Aarea), but high leaf construction cost (CCarea) and carbon isotope ratio (δ13C). In contrast, two terrestrial ferns (Adiantum flabellulatumandAlsophila spinulosa) showed high Aarea and relative low δ13C.Hicriopteris chinensisgrowing on bared rocks at forest edge had the lowest leaf phosphorus contents, and the highest photosynthetic phosphorus use efficiency among the six fern species, whileSelaginella delicatulagrowing in streamside had the highest SLA, and the lowest CCarea and δ13C. Therefore, it was suggested that there were close relationship between leaf traits of ferns and environment. In addition, because of high energy investment and low photosynthetic rate, epiphytic ferns have low adaption ability to environment, their survive might be under great pressure.