European Phenology Campaign

Primary school Izidora Poljaka Višnjica

2024-11-09T07:43:50Z

1	This academic year we monitored the yellowing of oak leaves.

1	We conducted monitoring from September 11 to October 24.

1	All leaves fell on October 24.
2	[img]/documents/18702582/0/graf.jpg/0a271ed6-4a23-8108-64a3-a3423d818bab?t=1731138152508&imagePreview=1[/img]
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1	Figure 1. Predominant Leaf Color

Oak

2024-09-19T15:34:37Z

1	Kind regards. Students Elementary school Izidora Poljaka Višnjica this fall, they follow the yellowing of the alder oak (Quercus robur).
2	We started observations on September 11, 2024.
3	[img]/documents/18702582/0/1726759950642.jpg/6e759c97-4377-d930-0caf-2eab19d8820b?t=1726760045643&imagePreview=1[/img]

Budding and leafing of oak leaves in the primary school of Izidor Poljak Vi

2024-05-18T06:43:00Z

Budding and leafing of oak leaves in the primary school of Izidor Poljak Višnjica

We monitored the budding and leafing of the oak leaves from February 27, 2024. until 10.5.2024.

1	Figure 1. Average budding and leafing of oak leaves
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3	[img]/documents/18702582/0/hrast_list_2_2.jpg/518cb940-4d69-f844-19ee-d134624ec03b?t=1716014102078&imagePreview=1[/img]

1	Figure 2. Budding and leaf two
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3	[img]/documents/18702582/0/hrast+list_1_1.jpg/6ee6a627-2ccf-9a61-b8ad-e1be78349515?t=1716014157077&imagePreview=1[/img]
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5	Figure 3. Budding and leaf one
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7	[img]/documents/18702582/0/hrast+list+3.jpg/1d3c6548-ac54-c70c-e846-00c12e07e809?t=1716014186693&imagePreview=1[/img]
8	Figure 4. Budding and leaf three
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10	[img]/documents/18702582/0/hrast+list4.jpg/f454cf0d-2e82-ab72-9ed1-973b2254ac68?t=1716014268699&imagePreview=1[/img]
11	Figure 2. Budding and leaf four

1	Leaves three and four fell off during observation and measurement.

Budding and leafing of common birch in J.E. Drašković Cvetlin regional sch

2024-05-18T06:43:41Z

1	Budding and leafing of common birch in J.E. district school. Drasković Cvetlin
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3	We started monitoring on February 26, 2024, and ended on May 13, 2024.
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1	Figure 1. Average budding and leafing of common birch
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3	[img]/documents/18702582/0/breza_list_3_1+%281%29.jpg/bae00ad7-8c4e-51a0-d031-b28355b78b2b?t=1716013806537&imagePreview=1[/img]
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5	Figure 2. Budding and leafing of 3 common birches
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10	Picture 3. Budding and leafing of 4 common birches
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13	Buds one and two are stunted.

Elementary School Izidora Poljaka Višnjica

2024-03-01T13:58:24Z

We are students of the primary school of Izidor Poljak Višnjica. At the measuring station VIŠNJICA1, we monitor oak budding and leafing.
Latitude 46.29277, Longitude 16.011227, Elevation 282.6m

We started monitoring on February 27, 2024.
All buds are dormant.

Cvetlin regional school

2024-03-01T13:53:25Z

We are students of the Cvetlin regional school. We monitor the budding and leafing of the common birch.
We are students of the Cvetlin regional school. We monitor the budding and leafing of common birch at the measuring station PŠ CVETLIN 1.
Latitude 46.282563, Longitude 15.961303, Elevation 257.1m

We started monitoring on February 26, 2024.
All buds are dormant.

Autumn phenology company in the primary school of Izidora Poljaka Višnjica

2023-11-22T17:31:58Z

This fall, we monitored the yellowing of birch leaves in the district school J.E. Drašković Cvetlin and the yellowing of oak leaves in the primary school Izidora Poljaka Višnjica.

Leaf color codes in PŠ J.E. Drašković Cvetlin

Leaf colors

Leaf 1

Leaf 2

Leaf 3

Leaf 4

Leaf color codes in Primary school Izidora Poljaka Višnjica

Leaf colors

Leaf1

Leaf 2

Leaf 3

Leaf 4

By monitoring the yellowing of the oak leaves, we noticed that the leaves fell about three weeks later this fall than the previous fall. We assume that the reason for this is that the air temperature is higher this autumn.

Regional school J.E. Drašković Cvetlin

2023-09-14T08:25:43Z

In the J.E. Drašković regional school, we photographed a common birch tree, marked the branch and leaves, and determined the colors.

Monitoring the yellowing of the oak tree

2023-09-14T07:56:17Z

Monitoring the yellowing of the oak tree in Elementary School Izdora Poljaka Višnjica.

1	On September 13, we photographed our tree,
2	marked the branch and the leaves and recorded the colors of the leaves.
3	[img]/documents/18702582/0/IMG_20230912_095351.jpg/1274fa71-b9c9-3bb6-6159-ddfa4984c1a4?t=1694677806938&imagePreview=1[/img]

Birch budding and leafing, elementary school Izidora Poljaka Višnjica

2023-05-12T09:58:24Z

Continuation of photos
06.04.2023.
13.04.2023.

17.04.2023.

05.05.2023.

Birch budding and leafing, elementary school Izidora Poljaka Višnjica

2023-05-12T09:52:05Z

We monitored the budding and leafing of the common birch in the area of the district school J.E.Drašković Cvetlin.
We started monitoring on February 6, 2023. years.
We ended the monitoring on 05.05.2023. after the leaves have grown to full size.

Leaf one and three have fallen off.

Leaf two reached a length of 52 mm, and leaf four 49 mm.

Greetings to everyone from the elementary school team Izidora Poljaka Višnjica.

06.03.2023.
31.03.2023.

Activity 1 OŠ Izidora Poljaka Višnjica

2023-03-03T19:05:39Z

Hello everyone. We come from the elementary school of Izidor Poljaka Višnjica, that is, from the district school of Julijana Erdody Drašković Cvetlin. We are seventh and eighth graders. In the district school, we monitor the budding of the common birch. All the buds are in the resting phase for now. The tree is 13.38 m high. The girth of the tree is 85 cm. Below are photos taken on February 11, 2023.

Autumn 2022 PŠ Julijane Erdody Drašković

2022-12-02T18:28:16Z

Greetings to everyone. I am Martina Simić Meznarić. I am a GLOBE teacher at Elementary School Izidora Poljaka Višnjica. This academic year, my students studied the yellowing of the oak tree in the home school and the yellowing of the birch (2 trees) in the district school.

The leaves of one common birch tree changed colors faster while the leaves of the other tree changed color more slowly and leaves 2 and 3 still did not fall off.

Data Date Range: 2021-09-16 to 2022-12-02

Measured On: 2022-09-08
Greening Cycle Number: 2
Leaf Color List: 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2
Number Of Leaves: 4
Leaf State: color change
Predominate Leaf Color: 5GY:3/2
Number Of Same Plants: 1

Measured On: 2022-09-12
Greening Cycle Number: 2
Leaf Color List: 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2
Number Of Leaves: 4
Leaf State: color change
Predominate Leaf Color: 5GY:3/2
Number Of Same Plants: 1

Measured On: 2022-09-16
Greening Cycle Number: 2
Leaf Color List: 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2
Number Of Leaves: 8
Leaf State: color change
Predominate Leaf Color: 5GY:3/2
Number Of Same Plants: 2

Measured On: 2022-09-23
Greening Cycle Number: 1
Leaf Color List: 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2
Number Of Leaves: 8
Leaf State: color change
Predominate Leaf Color: 5GY:3/2
Number Of Same Plants: 2

Measured On: 2022-09-26
Greening Cycle Number: 1
Leaf Color List: 5GY:3/2 5GY:3/2 5GY:4/8 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2
Number Of Leaves: 8
Leaf State: color change
Predominate Leaf Color: 5GY:3/2
Number Of Same Plants: 2
Comments: - Listovi na grani su u sjeni listova drugih grana.

Measured On: 2022-09-30
Greening Cycle Number: 1
Leaf Color List: 5GY:3/2 5GY:3/2 5GY:3/2 5GY:3/2 5YR:7/12 5GY:4/8 5GY:3/2 5GY:3/2
Number Of Leaves: 8
Leaf State: color change
Predominate Leaf Color: 5GY:3/2
Number Of Same Plants: 2

Measured On: 2022-10-03
Greening Cycle Number: 1
Leaf Color List: 5G:4/2 5G:4/2 5G:4/2 5G:4/2 5GY:4/8 5GY:3/2 5GY:3/2
Number Of Leaves: 7
Leaf State: color change
Predominate Leaf Color: 5G:4/2
Number Of Same Plants: 2

Measured On: 2022-10-03
Greening Cycle Number: 1
Leaf State: fallen
Number Of Same Plants: 2

Measured On: 2022-10-07
Greening Cycle Number: 1
Leaf Color List: 5G:4/2 5GY:3/2 5GY:4/8 5GY:4/8 5G:4/2 5G:4/2 5GY:4/8
Number Of Leaves: 7
Leaf State: color change
Predominate Leaf Color: 5G:4/2
Number Of Same Plants: 2

Measured On: 2022-10-10
Greening Cycle Number: 1
Leaf Color List: 5G:4/2 5G:4/2 5GY:5/10 5GY:5/10 5G:4/2 5GY:4/8 5GY:4/8
Number Of Leaves: 7
Leaf State: color change
Predominate Leaf Color: 5G:4/2
Number Of Same Plants: 2

Measured On: 2022-10-14
Greening Cycle Number: 1
Leaf Color List: 5GY:4/8 2.5Y:8/12 5GY:5/10 5GY:5/10 5GY:4/8 5GY:4/8 5GY:4/8
Number Of Leaves: 7
Leaf State: color change
Predominate Leaf Color: 5GY:4/8
Number Of Same Plants: 2

Measured On: 2022-10-17
Greening Cycle Number: 1
Leaf Color List: 5GY:4/8 5GY:4/8 5GY:4/8 5GY:5/10 5GY:5/10 5GY:5/10
Number Of Leaves: 6
Leaf State: color change
Predominate Leaf Color: 5GY:4/8
Number Of Same Plants: 2

Measured On: 2022-10-21
Greening Cycle Number: 1
Leaf Color List: 5GY:5/10 5GY:5/10 5GY:5/10 5GY:5/10 5GY:6/10 5GY:7/12
Number Of Leaves: 6
Leaf State: color change
Predominate Leaf Color: 5GY:5/10
Number Of Same Plants: 2

Measured On: 2022-10-24
Greening Cycle Number: 1
Leaf Color List: 5GY:5/10 5GY:7/12 5YR:7/12 2.5Y:8/12 5GY:5/10 5GY:6/10
Number Of Leaves: 6
Leaf State: color change
Predominate Leaf Color: 5GY:5/10
Number Of Same Plants: 2

Measured On: 2022-10-28
Greening Cycle Number: 1
Leaf Color List: 5GY:7/12 5GY:7/12 2.5Y:8/12 5GY:7/12
Number Of Leaves: 4
Leaf State: color change
Predominate Leaf Color: 5GY:7/12
Number Of Same Plants: 2

Measured On: 2022-10-31
Greening Cycle Number: 1
Leaf Color List: 5GY:5/10 5GY:5/10 2.5Y:8/12
Number Of Leaves: 3
Leaf State: color change
Predominate Leaf Color: 5GY:5/10
Number Of Same Plants: 2

Measured On: 2022-11-04
Greening Cycle Number: 1
Leaf Color List: 5GY:5/10 2.5Y:8/12 5GY:5/10
Number Of Leaves: 3
Leaf State: color change
Predominate Leaf Color: 5GY:5/10
Number Of Same Plants: 2

Measured On: 2022-11-07
Greening Cycle Number: 1
Leaf Color List: 5GY:5/10 5GY:5/10
Number Of Leaves: 2
Leaf State: color change
Predominate Leaf Color: 5GY:5/10
Number Of Same Plants: 2

Measured On: 2022-11-11
Greening Cycle Number: 1
Leaf Color List: 5GY:5/10 5GY:6/10
Number Of Leaves: 2
Leaf State: color change
Predominate Leaf Color: 5GY:5/10
Number Of Same Plants: 2

Measured On: 2022-11-14
Greening Cycle Number: 1
Leaf Color List: 5GY:6/10 5GY:5/10
Number Of Leaves: 2
Leaf State: color change
Predominate Leaf Color: 5GY:5/10
Number Of Same Plants: 2

Measured On: 2022-11-16
Greening Cycle Number: 1
Leaf Color List: 5GY:7/12 5GY:6/10
Number Of Leaves: 2
Leaf State: color change
Predominate Leaf Color: 5GY:6/10
Number Of Same Plants: 2

Measured On: 2022-11-21
Greening Cycle Number: 1
Leaf Color List: 2.5Y:8/12 5GY:7/12
Number Of Leaves: 2
Leaf State: color change
Predominate Leaf Color: 2.5Y:8/12
Number Of Same Plants: 2

Measured On: 2022-11-25
Greening Cycle Number: 1
Leaf Color List: 5YR:7/12 2.5Y:8/12
Number Of Leaves: 2
Leaf State: color change
Predominate Leaf Color: 2.5Y:8/12
Number Of Same Plants: 2

Measured On: 2022-11-28
Greening Cycle Number: 1
Leaf Color List: 5YR:7/12 5YR:7/12
Number Of Leaves: 2
Leaf State: color change
Predominate Leaf Color: 5YR:7/12
Number Of Same Plants: 2

Measured On: 2022-12-02
Greening Cycle Number: 1
Leaf Color List: 7.5YR:5/4 5YR:7/12
Number Of Leaves: 2
Leaf State: color change
Predominate Leaf Color: 5YR:7/12
Number Of Same Plants: 2

Common birch 2

Common birch 1

Common birch 1, 28.10.2022.

Common birch 2, 28.10.10.2022.

Common birch 2, 15.11.2022.

Common birch 2, 28.11.2022.

Autumn 2022 OŠ Izidora Poljaka Višnjica

2022-12-02T17:55:39Z

Yellowing

2022-09-14T14:51:58Z

1	[img]/documents/18702582/0/Screenshot_2022-09-14-16-46-54-937_com.naturetoday.growapp.jpg/a068b9f2-24d4-142e-462e-314bec4ba655?t=1663167062508&imagePreview=1[/img]
2	Hello everyone. We come from Croatia from Cvetlin. We monitor the yellowing of the Common Birch. [img]/documents/18702582/0/Screenshot_1+%281%29.png/acbb0a54-39f7-bf56-332d-7ea456f0ac23?t=1663166675447&imagePreview=1[/img]
3	[img]/documents/18702582/0/Screenshot_2022-09-14-16-46-24-012_com.naturetoday.growapp.jpg/e9541609-05f9-aeb7-d26b-f524baae89ef?t=1663166938215&imagePreview=1[/img]
4	[img]/documents/18702582/0/Screenshot_2022-09-14-16-47-42-396_com.naturetoday.growapp.jpg/82357a37-87f2-e0c3-835f-c0d7db8733dd?t=1663167114557&imagePreview=1[/img]
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