Show simple record

dc.contributor.authorSchwarz, Elain
dc.date.accessioned2022-02-16T20:14:14Z
dc.date.available2022-02-16T20:14:14Z
dc.date.issued2020
dc.identifier.urihttps://hdl.handle.net/10652/5549
dc.description.abstractThe effect of trees on soil hydraulic and physical properties has been of interest for several centuries. While a variety of relevant studies have been undertaken in Europe, Northern America, Asia and Africa, very few studies have been conducted in New Zealand. This study aims to add some understanding and awareness to the overall pool of knowledge regarding New Zealand’s ecosystems, soils and the link to its vegetation. Three different land use types were tested; a grassland paddock (P), a 20-year-old restoration forest (RF) and a 400-year-old native Kahikatea dominant forest (KF). The main assessments included infiltration rate measurements (IR) and soil moisture content (SM). Hereby a single-ring infiltrometer and a Time Domain Reflectometry (TDR) device were used. The average infiltration rate values tended to KF > RF > P, with the Kahikatea forest soil scoring 18 times higher (200.58mm/hr) than the pasture (10.97mm/hr) and 9 times higher than the restoration forest (21.92mm/hr). The average soil moisture content resulted in P = RF > KF with an overall difference of only 10.6% between the paddock/restoration forest and the Kahikatea forest (74.2%). The experiment proved that trees promote infiltration rates, water storage capacity and reduce surface runoff, hence decreasing the risk of perpetuated flood events. Trees are therefore a suitable tool for practicing natural flood management, to slow the spread and lower the level of a possible flood.en_NZ
dc.language.isoenen_NZ
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectNew Zealanden_NZ
dc.subjectsoil qualityen_NZ
dc.subjectwater runoffen_NZ
dc.subjectfloodingen_NZ
dc.subjecttree densityen_NZ
dc.subjectsoil runoffen_NZ
dc.subjectflood managementen_NZ
dc.subjectsoil monitoringen_NZ
dc.titleDo trees reduce water runoff during flood events? An assessment of soil hydrological properties in three different land-use types of varying tree densityen_NZ
dc.typeUndergraduate Research Reporten_NZ
thesis.degree.nameBachelor of Environmental Managementen_NZ
thesis.degree.levelUndergraduateen_NZ
thesis.degree.grantorSouthern Institute of Technology (SIT)en_NZ
dc.subject.marsden4104 Environmental managementen_NZ
dc.subject.marsden4106 Soil sciencesen_NZ
dc.identifier.bibliographicCitationSchwarz, E. (2020). Do trees reduce water runoff during flood events? An assessment of soil hydrological properties in three different land-use types of varying tree density. (Unpublished document submitted in partial fulfilment of the requirements for the degree of Bachelor of Environmental Management). Southern Institute of Technology (SIT). https://hdl.handle.net/10652/5549en
unitec.pages70en_NZ
unitec.institutionSouthern Institute of Technology (SIT)en_NZ
dc.contributor.affiliationSouthern Institute of Technology (Invercargill, N.Z.)en_NZ
unitec.advisor.principalMarapara, Tapuwa
unitec.institution.studyareaEnvironmental Managementen_NZ


Files in this item

Thumbnail
Thumbnail

This item appears in

Show simple record