Delta facts, English versions

Soil Organic Matter and its Importance for Water Management

This Deltafact highlights the role of soil organic matter in retaining water in the soil (sponge effect) and the options to influence its quantity and...

Bekijk Deltafact

Robustness of fresh water

Robustness is a popular term in water management. It triggers associations with strong and invulnerable; if an object is robust, it will not break dow...

Bekijk Deltafact

Delta scenarios and adaptive Delta Management

This fact sheet covers Adaptive Delta Management and the Delta Scenarios, explaining how they can be used in the strategic decisions of the water boar...

Bekijk Deltafact

Impact rapid decrease water level

Using a water storage area could lead to a similar decrease in the storage basin level and create geotechnical problems when the water storage level d...

Bekijk Deltafact

Company water reservoirs

This fact sheet outlines water reservoir solutions for the greenhouse horticulture and field crop sectors. Water reservoirs on private plots reduce th...

Bekijk Deltafact

Rainwater lenses

This delta fact addresses the recent insights into the characteristics and occurrence of rainwater lenses in areas with saline groundwater . It provid...

Bekijk Deltafact

Effects of climate change on nature

This delta fact addresses the effects of climate change on terrestrial nature and the manner in which these effects are included in forecasting models...

Bekijk Deltafact

Dynamic level management

Dynamic water level management involves anticipating conditions based on previously determined preconditions concerning water level margins as stipula...

Bekijk Deltafact

Drought determines functions

The Netherlands struggles with substantial water shortages and drought damage in agriculture and in nature conservation areas, especially the sandy so...

Bekijk Deltafact

Soil moisture-based irrigation

Soil moisture-based irrigation is a tool to reduce the demand for irrigation water by giving the user insight into the current soil moisture condition...

Bekijk Deltafact

Soil as a buffer

Without the buffering ability of the surface soil, nutrients would immediately be washed away with the first substantial rainfall. This is an importan...

Bekijk Deltafact

Pricing of water for agriculture

This fact sheet provides the background on and strategies for pricing water – specifically surface water - used by agriculture for irrigation and the ...

Bekijk Deltafact

Salt-tolerant crops

Salt-tolerant crops can tolerate a certain amount of salt without compromising production or quality. Growing salt-tolerant crops offers the solution ...

Bekijk Deltafact

Salt intrusion

Salinity of water systems is the phenomenon where fresh water is (increasingly) salified. In many cases, fresh water must stay fresh for a number of r...

Bekijk Deltafact

Room for the river

The Room for the River concept is related to river restoration or rehabilitation, sustainable river management, river flood management and river widen...

Bekijk Deltafact

Mangrove restoration

Mangrove restoration is about recovering the former situation; it is the regeneration of mangrove ecosystems in areas where they were previously situa...

Bekijk Deltafact

Controlled drainage

In controlled drainage, the groundwater is not immediately discharged but (partly) retained in the soil. By varying the level of the drainage basins, ...

Bekijk Deltafact

Aquifer storage and recovery

Excess fresh water is infiltrated and stored in aquifers through wells or infiltration ponds, and recovered from the same wells when needed. Aquifer s...

Bekijk Deltafact

Effectiveness of Water Intake

The focus in this fact sheet is on taking water in for agricultural (irrigation) purposes and thus on flushing for maintenance of the surface water qu...

Bekijk Deltafact

Effects of climate change on agriculture

This delta fact addresses climate change, the effects of climate change on crop yield in agriculture, the models and calculation methods that are appl...

Bekijk Deltafact

Brackish seepage

Brackish to saline groundwater is common to many areas of the Dutch coastal lowlands. The purpose of this Delta Fact is to describe the different aspe...

Bekijk Deltafact

Blue services

Green and blue services are voluntary activities that exceed the statutory minimum, undertaken by private landowners and land users. The services are ...

Bekijk Deltafact