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作者

Vinay Kumar Gadi;Ankit Garg;Bharat Rattan;Priyanshu Raj;Shubham Gaurav;Sreedeep S;Lingaraj Sahoo;Christian Berretta;Lin Peng

来源

URBAN FORESTRY & URBAN GREENING,Vol.43,Issue1,Article 126380

语言

英文

关键字

Deciduous species;Grass density;Shoot growth rate;Urban green space

作者单位

Department of Civil Engineering, Indian Institute of Technology Guwahati, India;Department of Civil and Environmental Engineering, Shantou University, China;Department of Biosciences and Bioengineering Engineering, Indian Institute of Technology, Guwahati, India;School of Civil Engineering, University of Leeds, Leeds, LS2 9JT, UK;Department of Civil Engineering, Indian Institute of Technology Guwahati, India;Department of Civil and Environmental Engineering, Shantou University, China;Department of Biosciences and Bioengineering Engineering, Indian Institute of Technology, Guwahati, India;School of Civil Engineering, University of Leeds, Leeds, LS2 9JT, UK

摘要

It is evident that grass density (GD) and shoot growth rate (SGR) governs the differential settlement of substructure, groundwater recharge, and stability of green infrastructure. GD and SGR are usually assumed to be constant during the entire life period of vegetation. However, spatial and temporal dynamics of GD and SGR in urban green space were rarely explored previously. The main objective of this study is to explore the spatial and temporal dynamics of GD and SGR in urban space vegetated with deciduous species (mix grass i.e., Poaceae and Bauhinia purpurea). Field monitoring was conducted in the urban green space for one year (i.e., life period of selected species). The monitoring period includes the growth period and gradual wilting period. Substantial spatial variation of GD was found during the first six months. GD away from the tree trunk was found to be 1.02–56.3 times higher than that near the tree trunk during the first six months. Thereafter, any spatial variation of GD was not found in the next six months. Unlike the GD, SGR was found to vary during the entire life period of mix grass. In addition, SGR away from the tree trunk was found to be 1.1–4.6 times higher than that near the tree trunk. Any relationship between GD and rainfall depth was not found. Whereas, SGR mainly depends on rainfall depth. The hypothesis of uniformity in GD and SGR during the life period of deciduous species was not found to be true.