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作者

来源

URBAN FORESTRY & URBAN GREENING,Vol.35,P.165-173

语言

英文

关键字

Creeping bentgrass; Physical properties; Rice-husk biochar; Turf establishment; SOIL PHYSICAL-PROPERTIES; SPHAGNUM PEAT MOSS; COAL FLY-ASH; HYDRAULIC-PROPERTIES; WATER-RETENTION; PLANT-GROWTH; NUTRIENT RETENTION; HYDROLOGICAL PROPERTIES; USE EFFICIENCY; L

作者单位

[Li, XiaoXiao; Chen, XuBing; Cao, JunJun; Wang, ZhaoLong] Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China. [Weber-Siwirska, Marta] Wroclaw Univ Environm & Life Sci, Inst Landscape Architecture, PL-50375 Wroclaw, Poland. Wang, ZL (reprint author), Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China. E-Mail: turf@sjtu.edu.cn

摘要

Turf provides an irreplaceable surface for recreational and sport activities in urban landscape. Sand-based rootzone is recommended for turf establishment because of its excellent compaction resistance. It is necessary to improve the water and nutrient retention of sand-based rootzone by soil amendments in maintaining healthy turf. The objective of this research was to evaluate the effects of rice-husk biochar on sand-based rootzone amendment and creeping bentgrass (Agrostsis stolonifera) establishment. The results showed that bulk density was linearly decreased in proportion to rice-husk biochar. Total porosity and capillary porosity, water retention, and saturated hydraulic conductivity were significantly increased in proportion to rice-husk biochar. Sand-based rootzone amended with 10% of rice-husk biochar promoted the seed germination and young seedling growth with the significantly higher growth rate, leaf emergence rate, shoot and root biomass, and turf coverage than the control. These results indicate that rice-husk biochar had superior characteristics to previous reported biochars in the sand-based rootzone amendment and could be used to improve soil physical properties and turf healthy in sports and recreation playgrounds.