• Home
• About
  • About the project
  • Approach
  • Study area
  • Subprojects
  • Contact
  • DFG Science TV
  • ECSF virtual field trip
• Staff
• Publications
  • List publications
• Documents and Services
  • General Information
• Data
  • List datasets
  • Category tree
  • Plots of climate datasets
• RESPECT Phase 1
  • About the project
  • Approach
  • Study area
  • Subprojects
  • Staff
  • Contact
  • DFG Science TV
  • General Information
• PAK 823-825(2013-2018)
  • Overall aims
  • Structure
  • Subprojects
  • Staff
  • Counterparts
  • Study area
  • Contact
  • Links
  • News
  • Data agreement
• FOR816/2(2010-2013)
  • Overall aims
  • Structure
  • Subprojects
  • Staff
  • Counterparts
  • Study area
  • Contact
  • Links
  • FOR816 Data user agreement

Platform data

Overview

Detailed view

Conclusion of the control experiment: 
-Spraying with Combo is the most efficient, low cost- and least manpower-requiring treatment. 
-On the other hand, the commonly used concentrations of this herbicide resulted in high mortality rates of all other components of the vegetation.
-Half of the application rate of Combo in combination with cutting reduces the impact on other vegetation dramatically, but is still highly efficient with respect to bracken.
-Black-foil & cutting, or cutting alone proved as the best method for bracken control if herbicides are not allowed and other vegetation should be preserved.

Treatments:
Asulam	with 400g/l active agent: 6l/ha
Glyphosat with 480g/l active agent: 4l/ha
Wilt Pruf with 25% active agent in solution: 6l/ha
Combo (PM) with 240g/l Picloram and Metsulfuron Methyl (60% p/p): 4l/ha
black foil:	6x6m/Plot
transparent foil:	6x6m/Plot
Cutting: only bracken leaves were cut, other vegetation remained in the plots
treatment combinations:
all treatments mentioned above were used in combination with cutting in alternating application

Further information in 
Roos K, Rödel HG & Beck E 2011: Short- and long-term effects of weed control on pastures infested with Pteridium arachnoideum and an attempt to regenerate abandoned pastures in South Ecuador. Weed Research 51: 165-176. doi: 10.1111/j.1365-3180.2010.00833.x; 1365-3180

Monthly measurements of bracken and Setaria sphacelata cover and leaf height before and after burning or mowing, respectively, on 1m2 plots. Additionally, reference plots without treatment were included in the dataset. Three vegetation types were observed at an abandoned pasture site: pure bracken stands (A),  pure Setaria stands (S),  and mixed stands of both (M). Burning (first burn of the experimental fire area) were applied at 2008-9-25 and mowing was realized between 2008-10-3 and 2008-10-7.

Vegetation dynamics table: The calculated vegetation heights of Setaria sphacelata and bracken consists of averaged single measurements of the largest leaf of each present grass tussock (from soil surface to leaf tip) and the standing height of each present bracken leaf, respectively.
LAI table: LAI measurements were allways taken with the 90° view cap because of the small plot size, 4 points per plot (2 from the left and 2 from the right slope paralell plot border) with 2 above and below measurements each, sensor direction was allways looking from the border into the plot. The given attributes were calculated using the FV2000 Software version 1.11 from LICOR. The 5th sensor ring was excluded before the calculations because the plots were located at steep slopes.

Data of repasturisation experiment with information about the location and treatments of the respective plots

Sketch of the site: different plot colour indicates different plot management
Data tables: treatment codes (a) control, (b) second control, (c) simulation of grazing (2x per year), (d) simulation of grazing (5x per year), (e) high fertilization , (f) low fertilization, (g) simulation of grazing (2x per year) + high fertilization, (h) simulation of grazing (5x per year) + high fertilization