土壤配比对运动场草坪草生长的影响  

Study on Effect of Soil Mixture on the Growth of Sports Ground Turf

作　　者：宋桂 韩烈保[1] 

机构地区：[1]北京林业大学草坪研究所

出　　处：《草地学报》2007年第2期199-200,共2页Acta Agrestia Sinica

基　　金：国家高技术研究发展计划(863计划)资助(2002AA2Z428111);美国高尔夫球协会(USGA)资助

摘　　要：Sports turf is a relatively weak link in the study of turfgrass science in our country,which is crucial for the development of athletic sports and intercommunications with athletes abroad.Attempting to control the sand,soil and peat content in the root zone,we research into the effect of different sand/soil ratio and peat content on soil physical properties and turfgrass growth.The experiment consists of two one-factor designs: Sand/soil ratio,and peat content.Sand/soil ratio experiment contains 11 treatments,using from 0 to 100 kg·100kg-1 sand/(sand+soil),conducted in the open land.The small plots were constructed within 1×1 m2 polyethylene boxes supported by legged,metal framework.Peat content experiment involves 6 treatments from 0 to 50 g·kg-1,which were conducted in Φ30 cm flowerpots.The main results are as follows: With sand content increasing,total porosity and capillary porosity declined,while air-filled porosity ameliorated.Capillary porosity and air-filled porosity improved notably when sand particle content was more than 80%.After compaction,the porosity in all the treatments reduced,and air-filled porosity declined remarkably when sand content was in the medium.With sand content increasing,saturated hydraulic conductivity increased exponentially.Steady infiltration rate,before turfgrass was planted and two months afterwards,showed the same trend with the saturated hydraulic conductivity,and both have distinct linear relationship.According to the significance of difference,the 11 treatments were divided into three groups: The first group was formed of those with sand/soil ratio from 0 to 3∶7(sand content lower than 60%);the second group contained those with sand/soil ratio from 3∶7 to 7∶3(sand content between 60% and 80%);and the third group consisted of those with sand/soil ratio more than 7∶3(sand content more than 80%).Curves that showed the water characteristics of different sand/soil root zones could be regressed evidently by Power function θ=AS-B.Water retention capability declined gSports turf is a relatively weak link in the study of turfgrass science in our country, which is crucial for the development of athletic sports and intercommunications with athletes abroad. Attempting to control the sand, soil and peat content in the root zone, we research into the effect of different sand/soil ratio and peat content on soil physical properties and turfgrass growth. The experiment consists of two one-factor designs： Sand/soil ratio, and peat content. Sand/soil ratio experiment contains 11 treatments, using from 0 to 100 kg · 100kg^-1 sand/（sand＋soil）, conducted in the open land. The small plots were constructed within 1 × 1 m^2 polyethylene boxes supported by legged, metal framework. Peat content experiment involves 6 treatments from 0 to 50 g · kg^-1, which were conducted in φ30 cm flowerpots. The main sults are as follows. With sand content increasing, total porosity and capillary porosity declined, while air-filled porosity ameliorated. Capillary porosity and air-filled porosity improved notably when sand particle content was more than 80%. After compaction, the porosity in all the treatments reduced, and air-filled porosity declined remarkably when sand content was in the medium. With sand content increasing, saturated hydraulic conductivity increased exponentially. Steady infiltration rate, before turfgrass was planted and two months afterwards, showed the same trend with the saturated hydraulic conductivity, and both have distinct linear relationship. According to the significance of difference, the 11 treatments were divided into three groups： The first group was formed of those with sand/soil ratio from 0 to 3 ： 7（sand content lower than 60% the second group contained those with sand/soil ratio from 3 ： 7 to 7 ： 3（sand content between 60% and 80%） ; and the third group consisted of those with sand/soil ratio more than 7 ： 3（sand content more than 80%）. Curves that showed the water characteristics of different sand/soil root zones could be regressed evide

关 键 词：运动场草坪 根系层土壤 土壤物理性质 草坪草 生长影响 

分 类 号：S688.4[农业科学—观赏园艺]