Description
This occurrence dataset provides primary data on repeated tree measurement of two inventories on the permanent sampling plot (8.8 ha) established in the old-growth polydominant broadleaved forest stand in the “Kaluzhskie Zaseki” State Nature Reserve (center of the European part of Russian Federation). The time span between the inventories was 30 years, and a total of more than 11 000 stems were included in the study (11 tree species and 3 genera). During the measurements, the tree species (for some trees only genus was determined), stem diameter at breast height of 1.3 m (DBH), and life status were recorded for every individual stem, and some additional attributes were determined for some trees. Field data were digitized and compiled into the PostgreSQL database. Deep data cleaning and validation (with documentation of changes) has been performed before data standardization according to the Darwin Core standard.
Представлены первичные данные двух перечетов деревьев, выполненных на постоянной пробной площади (8.8 га), заложенной в старовозрастном полидоминантном широколиственном лесу в заповеднике “Калужские засеки”. Перечеты выполнены с разницей в 30 лет, всего исследовано более 11 000 учетных единиц (деревья 11-ти видов и 3-х родов). Для каждой учетной единицы определяли вид, диаметр на высоте 1.3 м и статус, для части деревьев также измеряли дополнительные характеристики. Все полевые данные были оцифрованы и организованы в базу данных в среде PostgreSQL. Перед стандартизацией данных в соответствии с Darwin Core выполнена их тщательная проверка, все внесенные изменения документированы.
Data Records
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 17,469 records.
1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is State Nature Reserve "Kaluzhskie Zaseki". This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: e6a27867-de78-45bc-a1cf-af04675038c0. State Nature Reserve "Kaluzhskie Zaseki" publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Participant Node Managers Committee.
Keywords
Occurrence; Observation
Contacts
- Originator
- Chief researcher
- Profsoyuznaya st. 84/32 bldg. 14
http://orcid.org/0000-0002-6620-9021
- Originator ●
- Point Of Contact
- Leading researcher
- 2, Institutskaya str.
- Originator
- Volunteer
- Building 72, Arboretum
- Metadata Provider ●
- Originator
- Researcher
- 2, Institutskaya str.
- Originator
- Leading Researcher
- 1, Vitkevicha str.
- Metadata Provider
- Senior Researcher
- 1, Vitkevicha str.
- Metadata Provider
- Senior Researcher
- 2, Institutskaya str.
- Originator
- Researcher
- 2, Institutskaya str.
- Metadata Provider
- Senior researcher
- 1, Vitkevicha str.
- Metadata Provider
- Senior researcher
- 2, Institutskaya str.
- Content Provider
- Student
- Content Provider
- Reseacher
- 2, Institutskaya str.
- PhD student
- 2, Institutskaya str.
- Content Provider
- PhD student
- 2, Institutskaya str.
- Content Provider
- Student
- Content Provider
- Researcher
- 20B, Glebovskaya Str.
- Originator
- Head of Department Forest Management & GIS
- 1 1st Institutskaya Str.
- Content Provider
- Student
- Content Provider
- Student
- Content Provider
- Student
- Content Provider
- Student
- Content Provider
- Student
- Content Provider
- Leading Researcher
- 2, Institutskaya str.
- Content Provider
- Researcher
- Content Provider
- Researcher
- College Park, MD
- Content Provider
- Leading Researcher
- 2, Institutskaya str.
Geographic Coverage
The Kaluzhskie Zaseki State Nature Reserve is located in the northwest of the Central Russian Upland, in the southeast of the Kaluga region, in the territory adjacent to the Orel and Tula regions.
| Bounding Coordinates | South West [53.621, 35.867], North East [53.626, 35.87] |
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Taxonomic Coverage
In total, 11 tree species of 10 genera were identified, and, additionally, 3 taxons were identified only at genus level. Scientific names were given according to the GBIF Backbone taxonomy, vernacular names - according to Mayevsky (2014).
| Genus | Betula L. (Береза (RU)), Salix L. (Ива (RU)), Malus Mill. (Яблоня (RU)) |
|---|---|
| Species | Quercus robur L. (Дуб обыкновенный | Дуб черешчатый (RU)), Fraxinus excelsior L. (Ясень обыкновенный (RU)), Ulmus glabra Huds. (Вяз голый | Ильм (RU)), Acer platanoides L. (Клён остролистный | Клён платановидный (RU)), Acer campestre L. (Клён равнинный | Неклён (RU)), Populus tremula L. (Тополь дрожащий | Осина (RU)), Picea abies (L.) H.Karst. (Ель высокая (RU)), Sorbus aucuparia L. (Рябина обыкновенная (RU)), Prunus padus L. (Черемуха обыкновенная (RU)), Corylus avellana L. (Орешник обыкновенный (RU)), Tilia cordata Mill. (Липа мелколистная (RU)) |
Sampling Methods
During the inventory (1986) all woody stems (alive and dead) with the diameter at breast height (DBH) >5 cm were identified, measured, mapped and marked within the plot. The local Cartesian coordinates were recorded for every individual stem. Under the re-inventory of 2016–18 led by Prof. Maxim V. Bobrovsky the DBH and life status (alive or dead) for each stem were measured. All new trees (alive and dead) with DBH >5 cm were marked and measured. An approximate location of new trees was marked on the tree location scheme of 1986–88 (without using instrumental measurements). Corylus avellana individuals were not counted in the re-inventory.
| Study Extent | The permanent sampling plot with total area of 8.8 ha (440 ✕ 200 m) was established by the team of researchers and students led by Prof. Olga V. Smirnova in 1986 in the southern part of the Reserve. The tree stand consisted of Quercus robur, Fraxinus excelsior, Tilia cordata, Acer platanoides, Acer campestre, Ulmus glabra, as well as Betula spp. and Populus tremula. The age of the tree stand was 150–400 years. |
|---|---|
| Quality Control | The data of the inventory were digitised into the local database and stored in a DBF format. Re-inventory data were digitised into spreadsheets, and after this all data were imported into PostgreSQL database. According to the main principles of data quality (Chapman, 2005) we checked semantic and structural consistency, as well as completeness of data. After defining errors and issues, all error instances and error types were documented, and checked in the field. In total 554 issues were resolved and all changes were documented in the database. All original (verbatim) values were maintained and not lost in the data cleaning process. Coordinates of trees were blurred and the accuracy of location was 30 m. |
Method step description:
- Field data collection
- Data digitisation
- Data quality assessment
- Data correction and documentation
- Darwin Core data standartisation
- Data publishing
Bibliographic Citations
- Маевский П.Ф. Флора средней полосы европейской части России. 11-е изд. — М.: Товарищество научных изданий КМК, 2014. — 635 с.
- Smirnova O.V. et al. 2017. Nemoral Forests. In: Smirnova O., Bobrovsky M., Khanina L. (eds) European Russian Forests. Plant and Vegetation, vol 15. Springer, Dordrecht. https://doi.org/10.1007/978-94-024-1172-0_5
- Khanina L., Bobrovsky M. 2021. Value of large Quercus robur fallen logs in enhancing the species diversity of vascular plants in an old-growth mesic broad-leaved forest in the Central Russian Upland // Forest Ecology and Management. 491: 119172 https://doi.org/10.1016/j.foreco.2021.119172
Additional Metadata
| Alternative Identifiers | e6a27867-de78-45bc-a1cf-af04675038c0 |
|---|---|
| http://gbif.ru:8080/ipt/resource?r=12ha |