鼎湖山自然保护区野生观赏草资源评价及应用  

Evaluation and Application of Wild Ornamental Grass Resources in Dinghushan Nature Reserve

作　　者：杨钰华 杨桂梅 周友秀 欧阳学军[2] 贺握权[3] 黄柳菁[1] YANG Yu-hua;YANG Gui-mei;ZHOU You-xiu;OUYANG Xue-jun;HE Wo-quan;HUANG Liu-jing(College of Landscape Architecture and Art,Fujian agriculture and Forestry University,Fuzhou 350002,Fujian,China;Dinghushan arboretum,South China Botanical Garden,Chinese Academy of Sciences,Zhaoqing 526070,Guangdong,China;Guangdong Second Normal University,Guangzhou 510303,Guangdong,China)

机构地区：[1]福建农林大学风景园林与艺术学院,福建福州350002 [2]中国科学院华南植物园鼎湖山树木园,广东肇庆526070 [3]广东第二师范学院,广东广州510303

出　　处：《南方园艺》2023年第2期38-49,共12页Southern Horticulture

基　　金：国家自然科学基金(32071578);福建省自然科学基金(2021J01133);福建农林大学学科交叉融合项目(YSYL-xkjc-8)资助。

摘　　要：为了解鼎湖山国家级自然保护区的野生草本植物是否适用于园林景观应用,开发适宜在南亚热带地区使用的观赏草资源,于2019~2020年通过实地调研和资料整理,对保护区内野生草本植物进行全面的调查统计,从549种筛选出123种具有观赏性的参试种,利用灰色关联度分析法初步筛选出具有观赏价值且易栽培的观赏草种类,结果表明:(1)野生观赏草植株较高,有中型植株63种(51.22%),大型植株26种(21.14%);(2)该区观赏草抗逆性较好,其中耐干旱的种最多,占比40.65%;(3)原生境为山坡草地及疏林灌木的有74种(59.68%),林缘湿地及山谷溪边45种(36.29%),湖泊沼泽5种(4.03%);(4)绝大多数观赏草为绿色叶,有4种异色叶植物;(5)参评的所有植物中,与理想种关联度≥0.6的有72种(58.54%),关联度≥0.7的有27种(21.95%),关联度≥0.8的有4种(3.25%),分别是狼尾草(Pennisetum alopecuroides)、粗喙秋海棠(Begonia crassirostris)、红楼花(Odontonema strictum)、肿柄菊(Tithonia diversifolia),建议直接用于园林绿化。To understand the landscape application potential of wild herbaceous plants in Dinghushan National Nature Reserve,and develop ornamental grass resources for south subtropical areas,a comprehensive investigation and statistics of wild herbaceous plants in Dinghushan National Nature Reserve were conducted in 2019-2020,and 123 ornamental species candidates were selected from 549 species.Excellent ornamental grass resources were preliminarily selected by grey correlative analysis.The results showed that 1)the plants of wild ornamental grass were high,including 63 medium-sized plants(51.22%)and 26 large plants(21.14%).2)The majority of the candidates were with stress resistances,among which drought-tolerant species(40.65%)are the most.3)There were 74 species(59.68%)whose original habitat was hillside grassland and sparse forest shrub,45 species(36.29%)in forest edge wetland and valley stream,and 5 species(4.03%)in lake swamp.4)The vast majority of ornamental grasses have green leaves,and only four plants are color-changed.5)Among all candidates,there were 72 species(58.54%)with correlation degree≥0.6 with ideal species,27 species(21.95%)with correlation degree≥0.7,and 4 species(3.25%)with correlation degree≥0.8,including Pennisetum alopecuroides,Begonia crassirostris,Odontonema strictum,Tithonia diversifolia,which could be directly used for landscaping.

关 键 词：观赏草 野生植物 观赏评价 灰色关联度 

分 类 号：S682[农业科学—观赏园艺]