Albert Tietema

Oldebroek

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Drought manipulations as described have been carried out starting 1999 until 2017 (18 years), while 1998 was a pretreatment year. Plans for the next future (starting 2019) are to transform the active manipulation into a passive, drought-net design. This would mean that the "old" manipulation of 3 months no precipitation (an average decrease of 20% on an annual basis), would change to a year long decrease in precipitation of 20% or any other percentage (not yet decided).

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