Harvard Forest

Data Archive

HF357

Effects of Forest Fragmentation on Carbon Sequestration and Respiration at Harvard Forest since 2016

Related Publications

Data

• hf357-01: micrometeorology data (preview)
• hf357-02: soil respiration (preview)

Overview

• Lead: Lucy Hutyra, Andrew Reinmann, Jonathan Thompson
• Investigators: Ian Smith
• Contact: Information Manager
• Start date: 2016
• End date: 2019
• Status: ongoing
• Location: Slab City Tract (Harvard Forest), Simes Tract (Harvard Forest)
• Latitude: +42.432115 to +42.490806 degrees
• Longitude: -72.509886 to -72.178782 degrees
• Elevation: 115 to 316 meter
• Datum: WGS84
• Taxa:
• Release date: 2023
• Language: English
• EML file: knb-lter-hfr.357.4
• DOI: digital object identifier
• EDI: data package
• DataONE: data package
• Related links:
• Study type: long-term measurements
• Research topic: forest-atmosphere exchange; soil carbon and nitrogen dynamics
• LTER core area: primary production, disturbance patterns
• Keywords: carbon, land cover, microclimate, soil moisture, soil respiration, soil temperature
• Abstract:

  Forest loss/fragmentation can have profound impacts on the terrestrial carbon (C) cycle by reducing forest uptake of carbon dioxide (CO2; the primary driver of anthropogenic climate change) through photosynthesis and C storage in forest biomass. Relative to intact rural forests, trees growing in forest fragments within developed landscapes typically experience conditions that can enhance growth such as warmer and longer growing seasons (i.e. urban heat island effect) and greater light and nutrient availability (e.g., nitrogen deposition) as well as conditions that can hinder growth such as increased exposure to damaging pollutants such as ozone and higher rates of disturbance. Our research quantifies the impact of fragmentation on C uptake and respiration near forest edges.

  In 2016 six 600‐m2 plots were installed along forest edges at the HF, measuring 20 m along the forest edge and extending 30 m into the forest perpendicular to the forest edge. Plot biomass was mapped and tree cores were taken in all trees >10cm diameter. The plots were installed at multiple edge aspects and adjacent land cover types (three meadows, two pastures, and one road). Within each plot, a pair of polyvinyl chloride soil respiration collars 20 cm in diameter × 7 cm tall and located 10 m apart was inserted approximately 2 cm into the soil at four distances from the edge (0, 10, 20, and 30m). Each plot had n = 8 collars for a total of n = 48 collars. Following installation, collars were left in the soil for at least 2 weeks to equilibrate. Air temperature, relative humidity, soil temperature, and soil moisture were logged along the center plot transect.

• Methods:

  Micrometeorology data

  Air temperature and relative humidity at 2m height was logged every 30 minutes at four locations relative to the forest edge in each of the six plots (0m, 10m, 20m, and 30m). Soil temperature at 10cm depth was logged every 30 minutes at three locations relative to the forest edge in each of the six plots (0m, 15m, and 30m). Soil moisture at 10cm depth was logged every 30 minutes at four locations relative to the forest edge in each of the six plots (0m, 10m, 20m, and 30m).

  Soil respiration data

  Soil respiration measurements were made periodically during 2016, 2017, and 2018 in each plot. Measurements were made in paired collars at four locations relative to the forest edge (0m, 10m, 20m, 30m; n = 8 collars per plot). When possible, concurrent measurements of soil temperature and moisture were made next to the collar at 10cm depth.

• Organization: Harvard Forest. 324 North Main Street, Petersham, MA 01366, USA. Phone (978) 724-3302. Fax (978) 724-3595.

• Project: The Harvard Forest Long-Term Ecological Research (LTER) program examines ecological dynamics in the New England region resulting from natural disturbances, environmental change, and human impacts. (ROR).

• Funding: National Science Foundation LTER grants: DEB-8811764, DEB-9411975, DEB-0080592, DEB-0620443, DEB-1237491, DEB-1832210.

• Use: This dataset is released to the public under Creative Commons CC0 1.0 (No Rights Reserved). Please keep the dataset creators informed of any plans to use the dataset. Consultation with the original investigators is strongly encouraged. Publications and data products that make use of the dataset should include proper acknowledgement.

• License: Creative Commons Zero v1.0 Universal (CC0-1.0)

• Citation: Hutyra L, Reinmann A, Thompson J. 2023. Effects of Forest Fragmentation on Carbon Sequestration and Respiration at Harvard Forest since 2016. Harvard Forest Data Archive: HF357 (v.4). Environmental Data Initiative: https://doi.org/10.6073/pasta/b1a472090505975a3b0bc5047b5cd2c7.

Detailed Metadata

hf357-01: micrometeorology data

1. year: year of observation
2. doy: Julian day of year of observation (unit: nominalDay / missing value: NA)
3. datetime: date and time of observation
4. hf01.at.0: plot hf01, air temperature 0 m from forest edge (unit: celsius / missing value: NA)
5. hf01.rh.0: plot hf01, relative humidity 0 m from forest edge (unit: dimensionless / missing value: NA)
6. hf01.at.10: plot hf01, air temperature 10 m from forest edge (unit: celsius / missing value: NA)
7. hf01.rh.10: plot hf01, relative humidity 10 m from forest edge (unit: dimensionless / missing value: NA)
8. hf01.at.20: plot hf01, air temperature 20 m from forest edge (unit: celsius / missing value: NA)
9. hf01.rh.20: plot hf01, air temperature 20 m from forest edge (unit: celsius / missing value: NA)
10. hf01.at.30: plot hf01, air temperature 30 m from forest edge (unit: celsius / missing value: NA)
11. hf01.rh.30: plot hf01, relative humidity 30 m from forest edge (unit: dimensionless / missing value: NA)
12. hf02.at.0: plot hf02, air temperature 0 m from forest edge (unit: celsius / missing value: NA)
13. hf02.rh.0: plot hf02, relative humidity 0 m from forest edge (unit: dimensionless / missing value: NA)
14. hf02.at.10: plot hf02, air temperature 10 m from forest edge (unit: celsius / missing value: NA)
15. hf02.rh.10: plot hf02, relative humidity 10 m from forest edge (unit: dimensionless / missing value: NA)
16. hf02.at.20: plot hf02, air temperature 20 m from forest edge (unit: celsius / missing value: NA)
17. hf02.rh.20: plot hf02, relative humidity 20 m from forest edge (unit: dimensionless / missing value: NA)
18. hf02.at.30: plot hf02, air temperature 30 m from forest edge (unit: celsius / missing value: NA)
19. hf02.rh.30: plot hf02, relative humidity 30 m from forest edge (unit: dimensionless / missing value: NA)
20. hf03.at.0: plot hf03, air temperature 0 m from forest edge (unit: celsius / missing value: NA)
21. hf03.rh.0: plot hf03, relative humidity 0 m from forest edge (unit: dimensionless / missing value: NA)
22. hf03.at.10: plot hf03, air temperature 10 m from forest edge (unit: celsius / missing value: NA)
23. hf03.rh.10: plot hf03, relative humidity 10 m from forest edge (unit: dimensionless / missing value: NA)
24. hf03.at.20: plot hf03, air temperature 20 m from forest edge (unit: celsius / missing value: NA)
25. hf03.rh.20: plot hf03, relative humidity 20 m from forest edge (unit: dimensionless / missing value: NA)
26. hf03.at.30: plot hf03, air temperature 30 m from forest edge (unit: celsius / missing value: NA)
27. hf03.rh.30: plot hf03, relative humidity 30 m from forest edge (unit: dimensionless / missing value: NA)
28. hf04.at.0: plot hf04, air temperature 0 m from forest edge (unit: celsius / missing value: NA)
29. hf04.rh.0: plot hf04, relative humidity 0 m from forest edge (unit: dimensionless / missing value: NA)
30. hf04.at.10: plot hf04, air temperature 10 m from forest edge (unit: celsius / missing value: NA)
31. hf04.rh.10: plot hf04, relative humidity 10 m from forest edge (unit: dimensionless / missing value: NA)
32. hf04.at.20: plot hf04, air temperature 20 m from forest edge (unit: celsius / missing value: NA)
33. hf04.rh.20: plot hf04, relative humidity 20 m from forest edge (unit: celsius / missing value: NA)
34. hf04.at.30: plot hf04, air temperature 30 m from forest edge (unit: celsius / missing value: NA)
35. hf04.rh.30: plot hf04, relative humidity 30 m from forest edge (unit: dimensionless / missing value: NA)
36. hf05.at.0: plot hf05, air temperature 0 m from forest edge (unit: celsius / missing value: NA)
37. hf05.rh.0: plot hf05, relative humidity 0 m from forest edge (unit: dimensionless / missing value: NA)
38. hf05.at.10: plot hf05, air temperature 10 m from forest edge (unit: celsius / missing value: NA)
39. hf05.rh.10: plot hf05, relative humidity 10 m from forest edge (unit: dimensionless / missing value: NA)
40. hf05.at.20: plot hf05, air temperature 20 m from forest edge (unit: celsius / missing value: NA)
41. hf05.rh.20: plot hf05, relative humidity 20 m from forest edge (unit: dimensionless / missing value: NA)
42. hf05.at.30: plot hf05, air temperature 30 m from forest edge (unit: celsius / missing value: NA)
43. hf05.rh.30: plot hf05, relative humidity 30 m from forest edge (unit: dimensionless / missing value: NA)
44. hf06.at.0: plot hf06, air temperature 0 m from forest edge (unit: celsius / missing value: NA)
45. hf06.rh.0: plot hf06, relative humidity 0 m from forest edge (unit: dimensionless / missing value: NA)
46. hf06.at.10: plot hf06, air temperature 10 m from forest edge (unit: celsius / missing value: NA)
47. hf06.rh.10: plot hf06, relative humidity 10 m from forest edge (unit: dimensionless / missing value: NA)
48. hf06.at.20: plot hf06, air temperature 20 m from forest edge (unit: celsius / missing value: NA)
49. hf06.rh.20: plot hf06, relative humidity 20 m from forest edge (unit: dimensionless / missing value: NA)
50. hf06.at.30: plot hf06, air temperature 30 m from forest edge (unit: celsius / missing value: NA)
51. hf06.rh.30: plot hf06, relative humidity 30 m from forest edge (unit: dimensionless / missing value: NA)
52. hf01.st.0: plot hf01, soil temperature 0 m from forest edge (unit: celsius / missing value: NA)
53. hf01.st.15: plot hf01, soil temperature 15 m from forest edge (unit: celsius / missing value: NA)
54. hf01.st.30: plot hf01, soil temperature 30 m from forest edge (unit: celsius / missing value: NA)
55. hf02.st.0: plot hf02, soil temperature 0 m from forest edge (unit: celsius / missing value: NA)
56. hf02.st.15: plot hf02, soil temperature 15 m from forest edge (unit: celsius / missing value: NA)
57. hf02.st.30: plot hf02, soil temperature 30 m from forest edge (unit: celsius / missing value: NA)
58. hf03.st.0: plot hf03, soil temperature 0 m from forest edge (unit: celsius / missing value: NA)
59. hf03.st.15: plot hf03, soil temperature 15 m from forest edge (unit: celsius / missing value: NA)
60. hf03.st.30: plot hf03, soil temperature 30 m from forest edge (unit: celsius / missing value: NA)
61. hf04.st.0: plot hf04, soil temperature 0 m from forest edge (unit: celsius / missing value: NA)
62. hf04.st.15: plot hf04, soil temperature 15 m from forest edge (unit: celsius / missing value: NA)
63. hf04.st.30: plot hf04, soil temperature 30 m from forest edge (unit: celsius / missing value: NA)
64. hf05.st.0: plot hf05, soil temperature 0 m from forest edge (unit: celsius / missing value: NA)
65. hf05.st.15: plot hf05, soil temperature 15 m from forest edge (unit: celsius / missing value: NA)
66. hf05.st.30: plot hf05, soil temperature 30 m from forest edge (unit: celsius / missing value: NA)
67. hf06.st.0: plot hf06, soil temperature 0 m from forest edge (unit: celsius / missing value: NA)
68. hf06.st.15: plot hf06, soil temperature 15 m from forest edge (unit: celsius / missing value: NA)
69. hf06.st.30: plot hf06, soil temperature 30 m from forest edge (unit: celsius / missing value: NA)
70. hf01.sm.0: plot hf01, soil moisture 0 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
71. hf01.sm.10: plot hf01, soil moisture 10 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
72. hf01.sm.20: plot hf01, soil moisture 20 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
73. hf01.sm.30: plot hf01, soil moisture 30 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
74. hf02.sm.0: plot hf02, soil moisture 0 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
75. hf02.sm.10: plot hf02, soil moisture 10 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
76. hf02.sm.20: plot hf02, soil moisture 20 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
77. hf02.sm.30: plot hf02, soil moisture 30 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
78. hf03.sm.0: plot hf03, soil moisture 0 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
79. hf03.sm.10: plot hf03, soil moisture 10 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
80. hf03.sm.20: plot hf03, soil moisture 20 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing values: NA)
81. hf03.sm.30: plot hf03, soil moisture 30 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
82. hf04.sm.0: plot hf04, soil moisture 0 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
83. hf04.sm.10: plot hf04, soil moisture 10 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
84. hf04.sm.20: plot hf04, soil moisture 20 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
85. hf04.sm.30: plot hf04, soil moisture 30 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
86. hf05.sm.0: plot hf05, soil moisture 0 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
87. hf05.sm.10: plot hf05, soil moisture 10 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
88. hf05.sm.20: plot hf05, soil moisture 20 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
89. hf05.sm.30: plot hf05, soil moisture 30 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
90. hf06.sm.0: plot hf06, soil moisture 0 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
91. hf06.sm.10: plot hf06, soil moisture 10 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
92. hf06.sm.30: plot hf06, soil moisture 30 m from forest edge (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)

hf357-02: soil respiration

1. collar: unique identifier for each soil respiration collar
2. doy: Julian day of year of observation (unit: nominalDay / missing value: NA)
3. datetime: date and time of observation
4. chambert: temperature inside soil respiration chamber (unit: celsius / missing value: NA)
5. soilt: soil temperature at 10 cm depth at the time of measurement (unit: celsius / missing value: NA)
6. vwc: soil volumetric water content at 10 cm depth at the time of measurement (unit: cubicCentimetersPerCubicCentimeters / missing value: NA)
7. umol.m2.s: soil CO2 flux in micromol CO2 per meter squared per second (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
8. year: year of observation
9. dfe: distance of collar from forest edge (unit: meter / missing value: NA)
10. plot: unique code for each of 6 plots