Lecture 4 - Heathlands and Moors Flashcards

1
Q

heathlands are dominated by .. .. ..
especially .. ..
but may also include .. .. and .. ..

A

ericoid dwarf shrubs
calluna vulgaris

erica cinerea, erica tetralix
-heather species

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2
Q

heathlands have .. floristic diversity due to their .. nutrients and .. soil

heathlands has a .. conservation status and contains species such as .. and ..

A

poor
low, acidic
high
dartford warbler (sylvia undata), smooth snake (coronella austriaca)

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3
Q

Upland Heaths are known as .. and are ..-..m above sea level

they cover ..-..million hectares in the UK (..% world total)

A

moors
300-400
2-3 million
75

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4
Q

The montane zone is the .. ..

A

tree line

-mountainous regions

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5
Q

lowland heaths cover ..ha in the UK (..% world) at altitudes below ..m

A

58,000, 20

300

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6
Q

… soils are typical of boreal forests and heathlands

their surface undergoes intense … and they have a distinct lack of .. and .. to mix soil horizons

A

podzol
eluviation/leaching
decomposition, invertebrates

-transport of soil material from upper layers to lower

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7
Q

Podzol soils typically are … as a consequence of high ..

This leads to .. formation as the soil is under low .. conditions

this .. layer holds … and .. while the iron pan layer prevents ..

A

waterlogged, rainfall
peat, oxygen
peat, water, nutrients, drainage

  • the peat layer is the O1 layer while the surface ‘litter layer is O2
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8
Q

Peatlands store .. billion tonnes of C

A

3

  • More C in UK peat than forests of Britain/France combine
  • Degradation of peat is huge climate risk
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9
Q

Heathland orignated during and after the .. age

A

bronze

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10
Q

in the moors west of sheffield heather has dominated since ..AD

most moors dominance post … ,though

A

400AD
1800
-Typically dominance occurs as land stopped being used for grazing

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11
Q

Grouse shooting worth £..million per year, they eat .. shoots of heather

A

100, young

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12
Q

Rotational burning is used on an 8-15 year cycle, to maximise … biomass and provide patches of … heather for nesting

A

edible

nesting

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13
Q

prescribed burning aims to remove the .. layer of heather and is done in ..
they aim to avoid burning of the .. underneath

A

top, winter

peat

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14
Q

management of moorlands prevent ..
.. provides nutrients to the soil and nutrients also return via …

this can lead to increased .. and .. diversity
burning also increases soil temperature for .. years

A

succession, ash, precipitation
plant, insect
7

  • however careful burning can still lead to peat loss, reduce water, plant health
  • initial insect populations also reduced
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15
Q

nutrients from heathland burning maybe lost via … (..) and ..

A

ash, leaching, smoke

-N especially lost in heathlands

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16
Q

… may be considered as a .. .. technique

typically they use .. but this reduces ../. species

A

reforestation
peat conservation
conifers, diversity, distinctive

-also reduces visual appeal

17
Q

Successfu planting birch has led to soil changes such as increased .. numbers

reversing .. to .. forest soil

increasing .., exchangable .. and total ..

A

earthworm
podzol, brown
pH, Ca, P

-Tulchan, Perthshire both successful sites

18
Q

In the Broxa site restablishment of Birch has taken place.

But soil pH has never exceeded .. likely due to low .. reserves, .. bedrock and .. .. leaching bases.

A

4.1
calcium
unreactive
acid rain

-Reforestation not always possible