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The Woodland Education Centre
The Heathland Restoration Project
Contents |

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Ecological Survey 1999
Section 9 Description (Hand Weeded)
Summary
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Section 9 is
the largest section on the Heathland Restoration Project site. It is more than double the
size of any of the other sections. This
section is really a section of two very different halves. The upper half (left) at the western
end of the slope was dominated by Heather, Polytrichum
formosum, grasses and typical heathland sedges, such as Pill
Sedge and Green-ribbed Sedge.
Gorse (mid
frame, left) was generally neither very tall
nor particularly widespread in this section. |
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The
lower half of the section (left) towards the bottom of the slope, was dominated by brambles, Bracken, rushes
and sedges. There was some Heather here, although much less than in the upper half,
together with a variety of tree species such cherry, birch and willow. The lower half is much wetter and is marshy in places. It is
likely that this area is wet because it is being affected by the spring line which is very
evident in the neighbouring wet woodland area. |
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Bracken
(left)
was quite widespread in this section, together with a variety of other ferns, such as Hard
Fern and Narrow Buckler Fern. Bluebells
were also present earlier in the year, but had died back by the time of the July survey. |
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Bell
Heather (left) had spread in this section and quite large clumps were now present in some
areas. |
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Much of
the ground layer in the upper half of the section was dominated by mosses, such as Polytrichum formosum (left - upright spikes)
and Thuidium tamarascinum (left - fern-like growth form). Polytrichum
formosum had declined considerably in this
section. In 1998, it was found in virtually every single quadrat, while in 1999, its %
frequency had declined to only 64%. |
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The
dominant species overall in this section was Silver Birch. Seedlings of this pioneer tree
covered much of the area (left). |
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Purple
Moor Grass (left), which is a characteristic large, tussocky grass of wetter heaths, had
become established in one small area of the lower half of this section. |
Dominant Plants in
Section 9 in 1999
with figures from 1998 for comparison.
Characteristic heath species
are in bold print
| Species |
Overall
% frequency |
Mean % Cover (all quadrats) |
|
1999 |
1998 |
1999 |
1998 |
| Silver
Birch |
72 |
78 |
12 |
12 |
| Heather
|
69 |
59 |
42 |
26 |
| Polytrichum formosum |
69 |
94 |
52 |
33 |
| Bramble |
66 |
69 |
17 |
10 |
| Green-ribbed
Sedge |
56 |
53 |
12 |
8 |
| Thuidium
tamarascinum |
53 |
53 |
27 |
7 |
| Velvet
Bent |
47 |
13 |
12 |
2 |
| Yorkshire
Fog |
41 |
47 |
9 |
5 |
| Cherry |
41 |
50 |
5 |
7 |
| Hypnum jutlandicum |
41 |
19 |
24 |
4 |
| Pill
Sedge |
38 |
41 |
5 |
4 |
| Eurhynchium praelongum |
38 |
3 |
13 |
0.5 |
| Common
Bent |
31 |
38 |
8 |
8 |
| Soft
Rush |
31 |
22 |
10 |
2 |
| European Gorse |
28 |
25 |
8 |
6 |
| Percentage
frequency = the percentage of the total number of quadrats sampled over the whole site
which contain the species. For example, a percentage frequency of 100%, means that the
species was found in all quadrats sampled. |
Summary:
- This section is the largest of all the
differently managed sections with at least double the area of the next largest section. It
is a section of two very different halves. Four years into the experimental management of
the Heathland Restoration Project site, the upper western half of section 9 closely
resembled a lowland heath habitat. This upper half was dominated by Silver Birch and
Heather, intermingled with heath sedges, Bell Heather and Brambles. Open areas of ground
were dominated by carpets of mosses such as Polytrichum
formosum.
- The lower half of the section, at the bottom of the
slope was much wetter and marshy in places. This half was dominated by brambles, Bracken
and rushes. Purple Moor grass had become established in one small patch in this lower half
of the section.
Comparison with the previous year:
- There was not a great deal of change in the dominant
plants in this section over the year, with a few exceptions:
- The amount of Heather increased.
- Velvet Bent trebled in abundance in this section over
the intervening year.
- Moss cover also increased, with the amount of Eurhynchium praelongum
and Hypnum jutlandicum (a heathland moss) increasing considerably.
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