华南地区8种地被植物的耐旱性及繁殖移栽效果  

Drought resistance and transplanting of 8 plants in South China

作　　者：钱瑭璜[1,2] 雷江丽[1] 许建新 徐义炎 

机构地区：[1]深圳市中国科学院仙湖植物园南亚热带植物多样性重点实验室,广东深圳518004 [2]深圳市铁汉生态环境股份有限公司,广东深圳518040

出　　处：《草业科学》2013年第11期1718-1724,共7页Pratacultural Science

基　　金：深圳市科技计划项目(SY200806300276A);深圳市战略新兴产业发展专项资金(GCZX20120618100801416)

摘　　要：以华南地区8种野生地被植物为研究对象,在温室内设置盆栽控水试验,测定参试植物的叶片相对含水量、相对电导率、丙二醛含量,利用隶属函数法对其抗旱性进行综合评价;同时,将引种植物栽于圃地中,对其进行为期1年的物候观测,并对部分种类进行扦插和播种繁殖试验。结果表明,马蹄金(Dichondra repens)、三点金(Desmodium triflourum)、链荚豆(Alysicarpus vaginalis)的耐旱能力较强,且繁殖较易,能迅速成坪,可作为深圳地区优良的草坪地被植物;天胡荽(Hgdrocotyle sibthorpoilides)、崩大碗(Centella asiatica)和地稔(Melastoma dodecandrum)耐旱性稍弱,但四季均可保持较好的覆盖及景观效果;半边莲(Lobelia chinensis)、长萼堇菜(Viola inconspicua)虽不耐旱,但可作为冬春季观花地被植物,植于疏林下,形成良好的园林景观。Taking 8 wild grand cover plants in South China as study objects, physiological indexes of their leaves, including relative water content, relative electric conductivity and malondialdehyde（MDA） content were measured, based on a water-controlled pot experiment. And a comprehensive evaluation on drought resistance of these 8 plants was also conducted, using subordinate function method. Meanwhile, these plants were transplanted into the garden for a one-year phonological observation, and cottage and seeding tests on part of plants. The results showed that, Dichondra repens, Desmodium triflourum and Alysicarpus vaginalis are excellent ground cover plants, because they have a relative stronger drought tolerance, easier to propagate, and higher turf-establishment speed. The drought tolerance of Hgdrocotyle sibthorpoilides, Centella asiatica and Melastoma dodecandrurn is slightly weaker, but they can keep a good coverage and landscape effect at all seasons. The drought tolerance of Lobelia chinensis and Viola inconspicua is the worst in 8 plants, but their flowers are very beautiful. So they can be used as good ground cover plants for viewing flowers, grown under thin arbors to form a good landscape.

关 键 词：野生地被植物 耐旱性 繁殖 园林应用 

分 类 号：S688.4[农业科学—观赏园艺]