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草业学报 ›› 2016, Vol. 25 ›› Issue (7): 177-185.DOI: 10.11686/cyxb2015524

• 研究论文 • 上一篇    下一篇

不同坪床基质物理性质变化及对兰引Ⅲ号结缕草生长的影响

宋华伟1, 2, 刘颖1, 2, 王宸1, 2, 刘天增1, 2, 张巨明1, 2, *   

  1. 1.华南农业大学林学与风景园林学院,广东 广州 510642;
    2.华南农业大学草业工程研究中心,广东 广州 510642
  • 收稿日期:2015-11-25 修回日期:2015-12-24 出版日期:2016-07-20 发布日期:2016-07-20
  • 通讯作者: jimmzh@scau.edu.cn
  • 作者简介:宋华伟(1990-),男,山东荣成人,在读硕士。E-mail:583854156@qq.com
  • 基金资助:
    广东省科技计划项目(2012B020302002)和奥林高尔夫教育与研究基金(AL 2012007)资助

Physical properties of different turfgrass rootzone soil mixes and their effects on the growth of ‘Lanyin No.Ⅲ’ zoysiagrass

SONG Hua-Wei1, 2, LIU Ying1, 2, WANG Chen1, 2, LIU Tian-Zeng1, 2, ZHANG Ju-Ming1, 2, *   

  1. 1.College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China;
    2.Guangdong Engineering Research Center of Grassland Science, South China Agricultural University, Guangzhou 510642, China
  • Received:2015-11-25 Revised:2015-12-24 Online:2016-07-20 Published:2016-07-20

摘要: 运动场草坪质量主要取决于其坪床结构及其建造质量,其中坪床建造材料的选择对草坪的坪用质量、使用寿命和后期养护管理费用的影响最大。兰引Ⅲ号结缕草广泛用于我国南方运动场草坪建植。为探究不同坪床基质物理性质变化及对兰引Ⅲ号结缕草生长的影响,本实验设计了5种坪床结构:A(100%纯砂)、B(砂∶泥炭=85∶15)、C(砂∶土=85∶15)、D(砂∶土∶泥炭=85.0∶7.5∶7.5)、E(100%纯土)。实验过程中测定各坪床土壤容重、土壤总孔隙度、土壤毛管孔隙度、土壤非毛管孔隙度和土壤饱和导水率5种物理性质指标及草坪色泽、再生速度及地上生物量3种生长指标。结果表明,5种坪床基质的容重在建坪初期差异较大,至建坪后期趋于一致;砂基坪床的通气性和导水性都显著优于纯土坪床,但砂基中无论是加入15%的泥炭或15%的土,还是加入15%的泥炭和土(7.5%+7.5%)的混合物,在孔隙度和导水率上均无明显差异。纯土坪床的草坪表观质量优于砂基坪床,颜色、再生速度、地上生物量均表现较好。砂+泥炭坪床,砂+土坪床和砂+土+泥炭坪床表现相近,但略优于纯砂坪床。综合5种坪床的物理性质变化及草坪质量,认为砂基坪床通气好、排水性能强,适合建植运动场草坪,其中以砂与泥炭混合基质较好;纯土坪床通气不良,排水性能较差,不适合建植运动场草坪。

Abstract: Sports turf quality mainly depends on the turf-bed structure and its construction quality, and the choice of rootzone soil mixes greatly affects the turf quality, its usage and the maintenance budget in the longer term. ‘Lanyin No.Ⅲ’ zoysiagrass (Zoysia japonica cv. Lanyin No.Ⅲ) is widely used in sports turf in southern China. This study aimed to examine the effects of five different rootzone mixes with varying physical properties on turf growth of ‘Lanyin No.Ⅲ’ zoysiagrass. The five rootzone mixes were 100% puresand (A), sand∶peat (85%∶15%) (B), sand∶soil (85%∶15%) (C), sand∶soil∶peat (85.0%∶7.5%∶7.5%) (D), and 100% pure soil (E). Soil bulk density, total porosity, capillary porosity, non-capillary porosity, and saturated hydraulic conductivity of the rootzone mixes were measured, together with turf color, regrowth rate and aboveground biomass to determine the effects of the various rootzone media on the growth of ‘Lanyin No.Ⅲ’ zoysiagrass. The bulk densities of the five rootzone media differed in the early stage of establishment, but did not differ in the late stage of establishment. Air permeability and hydraulic conductivity of the rootzone media containing sand were significantly higher than those with pure soil. However, the sand rootzones media containing 15% soil, 15% peat, or mixture of 7.5% peat and 7.5% soil showed no obvious differences in soil porosity and hydraulic conductivity. The rootzone media comprising pure soil produced good turf quality with better color, regrowth speed and more aboveground biomass than the other media. The turf quality when turves were grown on rootzone media of sand mixed with peat, soil, and mixtures of peat and soil were similar, and slightly better than those grown in pure sand. Based on the above results, it is considered that a sand rootzone medium is suitable for the construction of ‘Lanyin No.Ⅲ’ zoysiagrass sports turf because it has more aeration and better drainage than the other media. The rootzone medium comprising pure soil was not suitable for sports turf because of poor aeration and drainage ability.