Michel Riksen

Wageningen University & Research

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C.J. Ritsema

Wageningen University & Research

Juul Limpens

Wageningen University & Research

Dirk Goossens

KU Leuven

Violette Geissen

Wageningen University & Research

Mahrooz Rezaei

Wageningen University & Research

Corjan Nolet

Wageningen University & Research

J.G.S. Keijsers

Wageningen University & Research

Ammar Adham

Bangladesh Agricultural University

A.V. de Groot

University of Groningen

Ate Poortinga

Asian Disaster Preparedness Center

Cooperative Institutions

Wageningen University & Research

Shiraz University

Utrecht University

Delft University of Technology

Consejo Superior de Investigaciones Científicas

Gorgan University of Agricultural Sciences and Natural Resources

Universidad Politécnica de Cartagena

Deltares

University of Twente

University of Amsterdam

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Demand Driven Education: Report on the Education Innovation Project 'Design in Land and Water Management in a Demand Driven Learning Environment'

Bert Bruins Michel Riksen H.P. Ritzema Gert Jan Veldwisch Saskia Visser

In the fifth period of the academic year 2008/2009 the chair groups Irrigation and Water Engineering (IWE) and Land Degradation and Development (LDD) organized a new course, i.e. Design in Land and Water Management 2 (IWE- 21312). The course is part of the BSc program International Land and Water Management (BIL). The decision to develop the course can be seen as a measure to ensure that BIL-graduates understand, can analyze, and are able to engage in and to advise on typical design processes as part of their professional practice as irrigation and soil- and water conservation experts.

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Effects of plastic mulching on the accumulation and distribution of macro and micro plastics in soils of two farming systems in Northwest China

PeerJ (2020)

Fanrong Meng Tinglu Fan Xiaomei Yang Michel Riksen Minggang Xu

Inappropriate disposal of the plastic mulching debris could create macroplastics (MaPs) and microplastics (MiPs) pollution in agricultural soil.To study the effects of farming systems on accumulation and distribution of agricultural plastic debris, research was carried out on two farming systems in Northwest China. Farming in Wutong Village (S1) is characterized by small plots and low-intensity machine tillage while farming in Shihezi (S2) is characterized by large plots and high-intensity machine tillage. In September 2017, we selected six fields in S1, three fields with 6-8 years of continuous plastic mulching (CM) as well as three fields with over 30 years of intermittent mulching (IM). In S2, we selected five cotton fields with 6, 7, 8, 15 and 18 years of continuous mulching. In both regions, MaPs and MiPs from soil surface to 30 cm depth (0-30 cm) were sampled.The results showed that in S1, MaPs mass in fields with 6-8 years CM (i.e., 97.4kg·ha-1) were significantly higher than in fields with 30 years IM (i.e., 53.7 kg·ha-1). MaPs in size category of 10-50 cm2 accounted for 46.9% in fields of CM and 44.5% in fields of IM of total collected MaPs number. In S2, MaPs mass ranged from 43.5 kg·ha-1 to 148 kg·ha-1. MaPs in size category of 2-10 cm2 account for 41.1% of total collected MaPs number while 0.25-2 cm2 accounted for 40.6%. MiPs in S1 were mainly detected in fields with over 30 years of intermittent mulching (up to 2,200 particles·kg-1 soil), whereas in S2 were detected in all fields (up to 900 particles·kg-1 soil). The results indicated farming systems could substantially affect the accumulation and distribution of agricultural plastic debris. Continuous plastic mulching could accumulate higher amount of MaPs than intermittent plastic mulching. High-intensity machine tillage could lead to higher fragmentation of MaPs and more severe MiPs pollution. These results suggest that agricultural plastic regulations are needed.

Plastic film

Paddy field

Conventional tillage

10.7717/peerj.10375

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Growth response of dune‐building grasses to precipitation

Ecohydrology (2024)

Jan‐Markus Homberger Aaron Lynch Michel Riksen Juul Limpens

Abstract The formation and development of coastal dunes are influenced by the growth of dune‐building grasses. Concurrently, the development of coastal dunes has been positively related to growing season precipitation, which might be due to precipitation promoting the growth of dune‐building grasses. However, a direct response relationship between precipitation and dune‐building grasses has yet to be identified. We explored the impact of precipitation on dune‐building grass species using a three‐step approach. (1) We assessed how plant‐available soil moisture changed with precipitation along an elevation profile from embryo dune to foredune. (2) We quantified the growth response of European marram grass ( Ammophila arenaria [L.] Link ) and sand couch ( Elytrigia juncea [L.] Nevski ) in a controlled pot experiment with water treatments derived from long‐term precipitation records. (3) We explored the impact of different precipitation scenarios on the growth of dune‐building grasses. Our field monitoring results showed that changes in soil moisture of the upper soil profile (0–50 cm) closely followed precipitation dynamics for all topographic positions. In our controlled pot experiment, soil moisture significantly increased plant growth in plant attributes associated with dune‐building, irrespective of species. Our scenario analyses indicated that prolonged periods with deviations from average growing season precipitation significantly affect plant growth, with extremely dry years reducing plant growth up to 23% and extremely wet years increasing plant growth up to 32%. Hence, in precipitation‐dependent coastal dune ecosystems, future extreme climatic events might have considerable consequences for dune development by notably influencing the growth of dune‐building vegetation.

10.1002/eco.2634

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Assessment of wind erosion risk in Flanders, Belgium

Wim Cornelis S. Van Kerkhoven Michel Riksen D. Gabriëls

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Shape variations in the sand belt. Better management of cover sands, river dunes and moving sand.

Vakblad Natuur Bos Landschap (2010)

Wayne Koster Henk Visscher M. Telluris P. D. Jungerius Michel Riksen

Sand dune stabilization

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Field testing, comparison, and discussion of five aeolian sand transport measuring devices operating on different measuring principles

Aeolian Research (2018)

Dirk Goossens Corjan Nolet Vicken Etyemezian Leonardo Duarte-Campos G. Bakker

Trap (plumbing)

10.1016/j.aeolia.2018.01.001

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Predicting the effect of tilling practices on wind erosion activity

Michel Riksen Saskia Visser

TILLING

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Identification of suitable sites for rainwater harvesting structures in arid and semi-arid regions: A review

International Soil and Water Conservation Research (2016)

Ammar Adham Michel Riksen Mohamed Ouessar C.J. Ritsema

Harvested rainwater is an alternative source of water in arid and semi-arid regions (ASARs) around the world. Many researchers have developed and applied various methodologies and criteria to identify suitable sites and techniques for rainwater harvesting (RWH). Determining the best method or guidelines for site selection, however, is difficult. The main objective of this study was to define a general method for selecting suitable RWH sites in ASARs by assembling an inventory of the main methods and criteria developed during the last three decades. We categorised and compared four main methodologies of site selection from 48 studies published in scientific journals, reports of international organisations, or sources of information obtained from practitioners. We then identified three main sets of criteria for selecting RWH locations and the main characteristics of the most common RWH techniques used in ASARs. The methods were diverse, ranging from those based only on biophysical criteria to more integrated approaches including socio-economic criteria, especially after 2000. The most important criteria for the selection of suitable sites for RWH were slope, land use/cover, soil type, rainfall, distance to settlements/streams, and cost. The success rate of RWH projects tended to increase when these criteria were considered, but an objective evaluation of these selection methods is still lacking. Most studies now select RHW sites using geographic information systems in combination with hydrological models and multi-criteria analysis.

Rainwater Harvesting

Identification

Human settlement

Land Cover

Site selection

Suitability analysis

10.1016/j.iswcr.2016.03.001

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Citations (246)

Development of aeolian activity in inland drift sands in the Netherlands after 1900

Michel Riksen Pim Jungerius

10.1163/9789004277953_006