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以一年生秋枫幼苗为试材,采用可塑性及模糊隶属函数值法综合评价分析方法,研究了不同遮荫程度(100%NS(自然光照,natural sunshine)、41.3%NS、14.6%NS和3.6%NS)对秋枫幼苗生长的影响,以期得出秋枫的耐荫性,为其苗木生产提供科学依据。结果表明:随着遮荫程度的增大,秋枫幼苗的苗高增长量、地径增长量、叶面积、鲜质量(地下部、地上部、整株)、干质量(地下部分、地上部分、整株)均先高后降,均在41.3%NS下达到最大值;而根总体积、根总长度、根总表面积、总根尖数、总根平均直径均呈不断降低的变化趋势。通过生长指标的综合分析得出秋枫幼苗具有中度耐荫性。
The annual seedlings of Qiufeng were used as test materials, and plasticity and fuzzy membership function method were used to evaluate the effects of shading degree (100% NS, 41.3% NS, 14.6% NS and 3.6% NS) on the growth of autumn maple seedlings in order to obtain shade tolerance of autumn maple, providing scientific basis for its seedling production. The results showed that with the increase of the degree of shading, seedling height growth, diameter growth, leaf area, fresh weight (underground, aboveground and whole plant), dry weight (underground, aboveground , The whole plant) first and then decreased, reaching the maximum at 41.3% NS. The total root volume, total root length, total root surface area, total root tip number and total root diameter showed a decreasing trend. Through the comprehensive analysis of growth index, autumn maple seedlings have moderate shade-tolerance.