Paper · 1987 · Netherlands Journal of Agricultural Science

Effects of drainage on the botanical richness of peat grassland.

A.J. van Strien; T.C.P. Melman

3
claims
6
verbatim quotes
5
citations
1
research areas
✓
Open access

Abstract

Data on botanical composition from 3 studies involving drainage of peat grasslands in 1940-75 were reanalysed by means of analysis of variance using total number of plant species, number of quality-indicating species and a system in which species were weighted according to rarity and rate of decline. Alopecurus geniculatus, Glyceria fluitans and Phalaris arundinacea were used as moisture indicators, and Dactylis glomerata and Poa pratensis as drought indicators. On extensively exploited grasslands drainage alone had considerable adverse effects on species richness whereas on intensively managed grasslands the N supply had the dominant effect. Results indicated that there was little or no advantage to nature conservation in omitting drainage where grassland was intensively managed. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Claims 3

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

On extensively exploited grasslands, drainage alone had considerable adverse effects on species richness.

Taxon
peat grasslandt0
Treatment
drainage alonee1
Outcome
species richnesse1
Direction
adverse effectse1
Setting
extensively exploited grasslandse1

Not reportedComparator

Verbatim

t0

“Effects of drainage on the botanical richness of peat grassland.”

✓ located verbatim in the source · title, characters 0–64 · show in text ↑
e1

“On extensively exploited grasslands drainage alone had considerable adverse effects on species richness”

✓ located verbatim in the source · abstract, characters 467–570 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

On intensively managed grasslands, N supply had the dominant effect on botanical richness.

Taxon
peat grasslandt0
Treatment
N supplye2
Outcome
botanical richnesst0
Setting
intensively managed grasslandse2

Not reportedDirection

Verbatim

t0

“Effects of drainage on the botanical richness of peat grassland.”

✓ located verbatim in the source · title, characters 0–64 · show in text ↑
e2

“whereas on intensively managed grasslands the N supply had the dominant effect”

✓ located verbatim in the source · abstract, characters 571–649 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Omitting drainage gives little or no advantage to nature conservation where grassland is intensively managed.

Taxon
peat grasslandt0
Outcome
omitting drainagee3
Qualifier
little or no advantage to nature conservatione3
Setting
intensively managede3

Verbatim

t0

“Effects of drainage on the botanical richness of peat grassland.”

✓ located verbatim in the source · title, characters 0–64 · show in text ↑
e3

“Results indicated that there was little or no advantage to nature conservation in omitting drainage where grassland was intensively managed”

✓ located verbatim in the source · abstract, characters 651–790 · show in text ↑