Bob Zwartendijk

Bob Zwartendijk
Hogeschool Inholland · Civil Engineering

Msc. Bbe.

About

17
Publications
3,335
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147
Citations

Publications

Publications (17)
Preprint
Full-text available
This paper shares an Early-Career Scientist (ECS) perspective on potential themes for the upcoming International Association of Hydrological Sciences (IAHS) scientific decade (SD). Six discussion sessions were organised in four countries in western Europe in spring 2022. Early-career hydrologists were invited to join the sessions to formulate poten...
Article
Full-text available
Governments are increasingly committing to significant ecological restoration. However, the impacts of forest restoration on local hydrological services are surprisingly poorly understood. Particularly, limited information is available about the impacts of tree planting on soil infiltration processes and runoff pathways. Thus, we investigated the s...
Article
Full-text available
Governments are increasingly committing to significant forest restoration. While carbon sequestration is a major objective, the case for restoration often includes benefits to local communities. However, the impacts of forest restoration on local hydrological services (e.g. flood and erosion risk, stream flow during dry periods) are surprisingly po...
Conference Paper
In many tropical areas slash-and-burn agriculture is an important driver of forest loss. In areas where slash-and-burn agriculture has been practiced for decades, land cover is typically a mosaic of patches of remnant forest, fields under active cultivation, fallows in various stages of regrowth (ranging from young shrub to semi-mature), and degrad...
Experiment Findings
We determined the soil hydrological characteristics for 51 sites located in three regions in the Corridor Ankeniheny-Zahamena (CAZ) in Madagascar. The sites differed in terms of land use and land history: closed canopy forests, reforestation sites, tree fallows, shrub fallows, degraded grassland sites and eucalyptus plantations.
Experiment Findings
Hydrological and meteorological data were collected for three plots (each 50 x 50 m in size) near Andasibe village in the Corridor Ankeniheny-Zahamena (CAZ) in eastern Madagascar. The plots differ in terms of land cover: semi-mature forest, reforested tree fallow (i.e., young secondary forest), and degraded grassland. The plots are located within 2...
Article
Years of slash-and-burn activities across the tropics have led to very patchy land-cover with vegetation in various stages of regrowth but the associated effects on runoff generation remain under-studied. We analysed soil moisture-, perched water level- and overland flow (OF) dynamics during two periods (15 February-2 November 2015 and 20 December...
Conference Paper
Full-text available
Secondary forests in various stages of regeneration now constitute the dominant vegetation in many tropical landscapes, but our understanding of their ecohydrological functioning remains limited. For example, it has been suggested that water use of vigorously growing young tropical forests may be higher than that of old-growth forests, with potenti...
Article
Full-text available
It has been suggested that vigorous secondary tropical forests can have very high transpiration rates but sap flow and stomatal dynamics of trees and shrubs in these forests are understudied. In an effort to address this knowledge gap, sap flow (thermal dissipation method, 12 trees) and stomatal conductance (porometry, six trees) were measured for...
Article
Full-text available
Land-use change due to the widespread practice of swidden agriculture affects the supply of ecosystem services. However, there is comparatively little understanding of how the hydrological functioning of soils, which affects rainfall infiltration and therefore flood risk, dry-season flows and surface erosion, is affected by repeated vegetation clea...
Article
Secondary forests occupy a larger area than old-growth rain forests in many tropical regions but their hydrological functioning is still poorly understood. In particular, little is known about the various components of evapotranspiration in these possibly vigorously regenerating forests. This paper reports on a comparison of measured and modeled ca...
Article
Secondary forests occupy a larger area than old-growth rain forests in many tropical regions but their hydrological functioning is still poorly understood. In particular, little is known about the various components of evapotranspiration in these possibly vigorously regenerating forests. This paper reports on a comparison of measured and modelled c...
Poster
Full-text available
Secondary forests are ubiquitous across the tropics nowadays. Yet, surprisingly little is known about how natural or aided forest regeneration in severely degraded landscapes ultimately impact water resources. As part of a larger project investigating the effects of land degradation through intensive slash and burn cultivation and forest recovery o...
Conference Paper
Full-text available
Secondary forests occupy a larger area than old-growth forest in many tropical regions but their hydrological functioning is still poorly understood. As part of a larger venture investigating the " trade-off " between the possibly strongly enhanced water use of vigorously regenerating secondary forest versus likely improved infiltration compared to...
Conference Paper
Full-text available
Reforestation and natural regrowth of forests are promoted for a wide range of benefits, including carbon seques-tration, rehabilitation of degraded land and streamflow regulation. However, their effects on runoff generation mechanisms and streamflow are still poorly understood. Evaporative losses (transpiration and interception) likely increase wi...
Poster
Full-text available
Reforestation is promoted for a wide range of benefits, including carbon sequestration, biodiversity, rehabilitation of degraded land and streamflow regulation. However, surprisingly little is known about how reforestation of degraded land impacts water resources. Transpiration and interception losses likely increase after reforestation. Overland f...

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