BEF-China | CSPs: Tree species Carbon (C) and Nitrogen (N) Concentration (Root, Stem, Twig, Leaf) of 8 target species in the CSPs

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Title:

CSPs: Tree species Carbon (C) and Nitrogen (N) Concentration (Root, Stem, Twig, Leaf) of 8 target species in the CSPs

Access rights:

Private

Usage rights:

No information available

Published:

No information available

Abstract:

Leaf, twig, stem and root samples were taken from eight “target” species (four trees, two deciduous: Castanea henryi, Quercus serrata and two evergreen: Castanopsis eyrei, Schima superba; four shrubs, one deciduous: Rhododendron simsii and three evergreen: Loropetalum chinense, Camellia fraterna, Eurya muricata) in autumn 2008. Furthermore, leaf samples from the target species were collected in spring 2009, summer 2009 and winter 2010 to detect seasonal variation in N concentration. Species were sampled in all CSPs where they were present. For the seasonal patterns, always the same tree individuals were sampled. Total C+N pools in tree and shrub biomass will further be calculated based on the C+N concentration measurements.

Design:

Leaf samples were taken with telescope pruning shears (lenght: up to 6.5m) from the lower outer and preferentially sun exposed canopy when possible. Leaves of shrub species were sampled in upper canopy. One year old twigs, and roots which a diameter between 1 and 3mm were taken for C and N analysis. All samples were dried at 70°C, ground and analyzed for C and N using an elemantal analyzer available at Peking University (Prof. Jin-Sheng He).

Spatial extent:

CSPs of the BEF China Experiment, Gutianshan Nature Reserve 29°08'-29°17'N 118°02'-118°11'E

Temporal extent:

2008 to 2010

Taxonomic extent:

Castanea henryi, Quercus serrata and two evergreen: Castanopsis eyrei, Schima superba; four shrubs, one deciduous: Rhododendron simsii and three evergreen: Loropetalum chinense, Camellia fraterna, Eurya muricata

Measurement cirumstances:

No information available

Data analysis:

No leaf samples were collected for Castanea henryi and Quercus serrata in winter 2010 since these species are deciduous. Rhododendron simsii can be classified as semi-deciduous because it sheds the big leaves in autumn but keeps small ones the whole winter which were also sampled.

Filter:

Reset

Dataset column

Name:

Number_ST

Definition:

Sample NumberHelper

Unit:

No information available

Datagroup:

Helper

Keywords:

No information available

Values:

10
1000
1
100
1001

Contributors:

No information available

Dataset column

Name:

Species

Definition:

Species name; ;

Unit:

No information available

Datagroup:

Scientific plant species name

Keywords:

species

Values:

Castanopsis eyrei
Camellia fraterna
Castanea henryi
Loropetalum chinense
Eurya muricata

Contributors:

No information available

Dataset column

Name:

Date

Definition:

Sampling dateDate time information

Unit:

No information available

Datagroup:

Date time information

Keywords:

date

Values:

2008-04-30
2008-10-14
2008-10-15
2008-10-12
2008-03-30

Contributors:

No information available

Dataset column

Name:

Organ

Definition:

Sampled plant partPlant organ sampled

Unit:

No information available

Datagroup:

Plant organ sampled

Keywords:

twig, leaf, stem, root, plant organ

Values:

R
Leaf
S
T

Contributors:

No information available

Dataset column

Name:

Definition:

Identification number of the individualCSP tree tag number

Unit:

No information available

Datagroup:

CSP metal tag number (trees, woody debris)

Keywords:

tree individual

Values:

1911081
1311081
0911081
0911082
1111081

Contributors:

No information available

Dataset column

Name:

CSP

Definition:

name of the CSP in the Nature ReserveBEF research plot name Reasearch plots of the Biodiversity - Ecosystem functioning experiment (BEF-China). There are three main sites for research plots in the BEF Experiment: Comparative Study Plots (CSP) in the Gutianshan Nature Reserve, having a size of 30x30m^2, measured on the ground.

Unit:

No information available

Datagroup:

BEF research plot name

Keywords:

CSP

Values:

CSP05
CSP01
CSP03
CSP02
CSP04

Contributors:

No information available

Dataset column

Name:

Age_3

Definition:

Age class, classification system using three classes, defined in the CSP age fileHelper

Unit:

No information available

Datagroup:

Helper

Keywords:

succession

Values:

3
1
2

Contributors:

No information available

Dataset column

Name:

Age_5

Definition:

Age class, classification system using five classes, defined in the CSP age fileHelper

Unit:

No information available

Datagroup:

Helper

Keywords:

No information available

Values:

1
5
4
2
3

Contributors:

No information available

Dataset column

Name:

Season

Definition:

Season; Autumn 2008: Samples were taken between 23.10.- 22.11. Spring 2009: Samples were taken between 30.03. - 10.05. Summer 2009: Samples were taken between 26.07.-09.08. Winter 2010: Samples were taken between 08.02.-20.02.

Unit:

No information available

Datagroup:

Season

Keywords:

season

Values: