土壤改良物质对沙基质草坪养分流失和匍匐剪股颖生长的影响  

Effects of Soil Amendments on Nutrient Loss and Growth of Agrostis stolonifera in Sand-based Rootzone

作　　者：王明兆 陈旭兵[2] 粱晶 王兆龙[2] 沈国清[2] WANG Mingzhao;CHEN Xubing;LIANG Jing;WANG Zhaolong;SHEN Guoqing(Jiangyin Agricultural Technology Extension Center,Jiangyin,Jiangsu,China,214431;School of Agriculture&Biology,Shanghai Jiao Tong University,Shanghai,China,200240;Shanghai Academy of Landscape Architecture Science and Planning,Shanghai,China,200232)

机构地区：[1]江苏省江阴市农业技术推广中心,江阴214431 [2]上海交通大学农业与生物学院,上海200240 [3]上海市园林科学规划研究院,上海200232

出　　处：《园林》2022年第4期123-127,共5页Landscape Architecture Academic Journal

基　　金：上海市科委科技创新行动计划“沼渣低碳高值化利用关键技术研究与示范”(编号:21DZ1209400);国家重点研发计划课题“都市农区面源污染防控与生态功能提升技术示范”(编号:2018YFD0800205)。

摘　　要：沙基质的耐踩踏草坪对水分和营养的吸持能力较弱,研究探讨了在沙基质中添加不同土壤改良剂对草坪养分流失的控制效果及其对草坪生长的影响。结果表明,在沙基质中添加5种土壤改良物质均能显著削减草坪的总氮、硝态氮和钾的流失,提升草坪对营养元素的吸持能力,并促进匍匐剪股颖的生长。不同土壤改良物质之间存在显著差异,添加珍珠岩和草炭的处理对氮和钾的吸持与养分流失的控制方面效果最好,添加煅烧粘土和草炭的处理则对匍匐剪股颖生长的促进效果最好。珍珠岩和煅烧粘土的合适配比有望取代资源逐渐枯竭的草炭应用于沙基质草坪的性能改良中。Sand-based rootzone for traffic-resistant turf has low capacity in absorption and retention of water and nutrients.The study focus on the effect of different soil amendments on the control of nutrient loss and the growth of Agrostis stolonifera.The results showed that the addition of five soil amendments to the sand rootzone significantly reduced the loss of total nitrogen,nitrate-nitrogen,and potassium,improve the absorption and retention capacity of nutrients,and promote the growth of Agrostis stolonifera.There were significant differences among different soil amendments.Additions of perlite and peat moss resulted in the best retention of nitrogen and potassium and the control of nutrient loss.Additions of calcined clay and peat moss resulted in the best promotion of the growth of Agrostis stolonifera.The appropriate ratio of perlite and calcined clay is expected to replace the gradually depleted peat moss in the amendment of sand-based rootzone turf.

关 键 词：土壤改良物质 匍匐剪股颖 养分流失 营养吸持 草坪生长 

分 类 号：TU986[建筑科学—城市规划与设计]