| 韦丹丹,罗轶,马双成,郑健,林雀跃.广西特色药材薄叶红厚壳的构件生物量及其分配特征研究[J].中国药事,2024,38(6):674-685 |
| 广西特色药材薄叶红厚壳的构件生物量及其分配特征研究 |
| The Study on Component Biomass and Its Distribution Characteristics ofGuangxi Unique Traditional Chinese Medicine Calophyllum membranaceum |
| 投稿时间：2023-10-08 |
| DOI：10.16153/j.1002-7777.2024.06.009 |
| 中文关键词: 薄叶红厚壳 资源分布 生长特征 生物量分配 根冠比 |
| 英文关键词: Calophyllum membranaceum iomass allocation growing characteristics resource distribution rootshootratio |
| 基金项目:广西科技重大专项“80种桂产特色中药材配方颗粒制备工艺与质量标准及产品开发研究”（编号桂科 AA22096019）；国家药品监督管理局药品注册司专项“特色民族药地桃花和横经席检验方法示范性研究”（编号 NIFDC-TCM2021-047-MZY009） |
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| 中文摘要: |
| 目的：旨在探究广西特色药材薄叶红厚壳植株构件生物量及其分配特征，深入了解植株生长特性，以期为后续规模化繁育提供理论依据。方法：基于植物标本信息与相关文献资料查阅结果，在广西境内设置10个调查点（遍及8个市县行政区）开展资源分布调查。每个调查点随机选取3个以上植株，采用全株收获法，获取植株生长指标及生物量数据，对比野生植株与栽培植株的生长指标差异，同时在个体水平上探究器官生物量分配及其与地理因子、生长指标间的关系。结果：通过对资源调查数据进行统计分析，发现野生薄叶红厚壳种群呈零星分布模式且多生长于林分下部；与人工栽培的薄叶红厚壳相比，野生薄叶红厚壳植株平均年龄为（14.47±1.74）a，平均地径为（8.28±0.53）mm，平均株高（75.68±5.10）cm，平均总生物量（43.31±5.96）g，上述生长指标远低于人工栽培植株；就生物量分配特征而言，各调查点植株茎生物量最大（56.48±18.79）g，茎质比均超过35%，而叶质比与根质比差异不明显；通过分析地理环境因子及植株生长参数对生物量分配的影响，发现根冠比与海拔呈显著正相关，根质比与株高呈显著负相关，茎质比与纬度、地径、株高、年龄均呈显著正相关，叶质比与除海拔外的其余5种因子均呈显著负相关；地理因子对其生物量分配的整体解释度为23.2%，略高于生长参数（19.6%）。结论：广西境内薄叶红厚壳植株分布广泛，但资源总量逐渐减少，植株生长状况稳定。构件生物量及其分配存在显著的空间地理差异，除地理因子与生长因子外，生物量分配还受到其他因素的影响。 |
| 英文摘要: |
| Objective: To investigate the component biomass and its distribution characteristics of Calophyllummembranaceum, a unique traditional Chinese medicine in Guangxi, and to deeply understand the growth characteristics of plants, so as to provide a theoretical basis for the subsequent large-scale breeding. Methods:Based on plant specimens information and relevant literature review, 10 survey points which covering 8 citiesand counties were set up in Guangxi to conduct the resource distribution of Calophyllum membranaceum. Ineach survey point, more than 3 whole plants were randomly selected and whole-plant harvest method was usedto obtain plant growth indexes and biomass data. The relationship between plant organ biomass distribution andgeographical and growth factors was explored at the individual level, and the growth indexes diff erences betweenwild plants and cultivated plants were compared. Results: Statistical analysis of the data from the resource surveyrevealed that the wild populations of Calophyllum membranaceum showed a sporadic distribution pattern andmostly grew in the lower part of the forest stand; compared with the cultivated plants, the averaged age, averagedground diameter, averaged plant height, averaged total biomass of Calophyllum membranaceum were respectively(14.47±1.74) a, (8.28±0.53) mm, (75.68±5.10) cm, and (43.31±5.96) g. The above growth indexes were muchlower than those of the cultivated plants; in terms of biomass allocation characteristics, the plant stem biomass wasthe largest (56.48 ± 18.79) g , and the stem mass ratio was more than 35%, while the diff erence between leaf massratio and root mass ratio was not signifi cant. By analyzing the eff ects of geographic environmental factors andplant growth parameters on biomass allocation, it was found that the root shoot ratio was signifi cantly positivelycorrelated with altitude, the root biomass fraction was signifi cantly negatively correlated with plant height, thestem biomass fraction was signifi cantly positively correlated with latitude, ground diameter, plant height and age,and the leaf biomass fraction was signifi cantly negatively correlated with the other fi ve factors except altitude. Theoverall explanatory power of geographical factors on biomass allocation was 23.2%, slightly higher than growthparameters (19.6%). Conclusion: Calophyllum membranaceum populations are widely distributed in Guangxi, theplant growth is stable, but the total resources are gradually decreased. There are signifi cant spatial geographicaldiff erences in component biomass and its allocation. The biomass allocation is infl uenced by others factors besidesgeographical factors and growth factors. |
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