Conversion of Pinus radiata plantations to native forest after harvest operations: a north Iberian Peninsula case study

2017 ◽  
Vol 136 (5-6) ◽  
pp. 801-810 ◽  
Author(s):  
Josu G. Alday ◽  
Elene Etxeberria ◽  
Ibone Ametzaga
Keyword(s):  
Iberian Peninsula ◽  
Pinus Radiata ◽  
Native Forest

scholarly journals Seed Exchange as an Agrobiodiversity Conservation Mechanism. A Case Study in Vall Fosca, Catalan Pyrenees, Iberian Peninsula

2012 ◽  
Vol 17 (1) ◽  
Author(s):  
Laura Calvet-Mir ◽  
Maria Calvet-Mir ◽  
José Luis Molina ◽  
Victoria Reyes-García
Keyword(s):  
Iberian Peninsula ◽  
Seed Exchange ◽  
Agrobiodiversity Conservation

scholarly journals Synergetic monitoring of Saharan dust plumes and potential impact on surface: a case study of dust transport from Canary Islands to Iberian Peninsula

2011 ◽  
Vol 11 (7) ◽  
pp. 3067-3091 ◽  
Author(s):  
C. Córdoba-Jabonero ◽  
M. Sorribas ◽  
J. L. Guerrero-Rascado ◽  
J. A. Adame ◽  
Y. Hernández ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Particle Deposition ◽  
Ground Level ◽  
In Situ Measurements ◽  
Saharan Dust ◽  
Dust Transport ◽  
Air Masses ◽  
Potential Impact

Abstract. The synergetic use of meteorological information, remote sensing both ground-based active (lidar) and passive (sun-photometry) techniques together with backtrajectory analysis and in-situ measurements is devoted to the characterization of dust intrusions. A case study of air masses advected from the Saharan region to the Canary Islands and the Iberian Peninsula, located relatively close and far away from the dust sources, respectively, was considered for this purpose. The observations were performed over three Spanish geographically strategic stations within the dust-influenced area along a common dust plume pathway monitored from 11 to 19 of March 2008. A 4-day long dust event (13–16 March) over the Santa Cruz de Tenerife Observatory (SCO), and a linked short 1-day dust episode (14 March) in the Southern Iberian Peninsula over the Atmospheric Sounding Station "El Arenosillo" (ARN) and the Granada station (GRA) were detected. Meteorological conditions favoured the dust plume transport over the area under study. Backtrajectory analysis clearly revealed the Saharan region as the source of the dust intrusion. Under the Saharan air masses influence, AERONET Aerosol Optical Depth at 500 nm (AOD500) ranged from 0.3 to 0.6 and Ångström Exponent at 440/675 nm wavelength pair (AE440/675) was lower than 0.5, indicating a high loading and predominance of coarse particles during those dusty events. Lidar observations characterized their vertical layering structure, identifying different aerosol contributions depending on altitude. In particular, the 3-km height dust layer transported from the Saharan region and observed over SCO site was later on detected at ARN and GRA stations. No significant differences were found in the lidar (extinction-to-backscatter) ratio (LR) estimation for that dust plume over all stations when a suitable aerosol scenario for lidar data retrieval is selected. Lidar-retrieved LR values of 60–70 sr were obtained during the main dust episodes. These similar LR values found in all the stations suggest that dust properties were kept nearly unchanged in the course of its medium-range transport. In addition, the potential impact on surface of that Saharan dust intrusion over the Iberian Peninsula was evaluated by means of ground-level in-situ measurements for particle deposition assessment together with backtrajectory analysis. However, no connection between those dust plumes and the particle sedimentation registered at ground level is found. Differences on particle deposition processes observed in both Southern Iberian Peninsula sites are due to the particular dust transport pattern occurred over each station. Discrepancies between columnar-integrated and ground-level in-situ measurements show a clear dependence on height of the dust particle size distribution. Then, further vertical size-resolved observations are needed for evaluation of the impact on surface of the Saharan dust arrival to the Iberian Peninsula.

scholarly journals Monterey pine forest made a remarkable recovery from pitch canker

2020 ◽  
Vol 74 (3) ◽  
pp. 169-173
Author(s):  
Gordon Thomas R. ◽  
Reynolds Gregory J. ◽  
Kirkpatrick Sharon C. ◽  
Storer Andrew J. ◽  
Wood David L. ◽  
...  
Keyword(s):  
Pinus Radiata ◽  
Rapid Progression ◽  
Native Forest ◽  
Pitch Canker ◽  
Santa Cruz ◽  
Monterey Pine ◽  
Native Populations ◽  
Remarkable Recovery ◽  
Monterey Peninsula ◽  
Observation Period

Monterey pine (Pinus radiata) is a species of limited distribution, with three native populations in California. In 1986, a disease known as pitch canker, caused by the fungus Fusarium circinatum, was identified as the cause of extensive mortality in planted Monterey pines in Santa Cruz County. Monitoring studies on the Monterey Peninsula documented rapid progression of the disease in the native forest during the 1990s, with most trees sustaining some level of infection. However, between 1999 and 2013, the severity of pitch canker stabilized, with many previously diseased trees then free of symptoms, and plots monitored between 2011 and 2015 documented a steady decline in the occurrence of new infections. Consequently, whereas pitch canker was once a conspicuous visual blight in the forest, by the end of the observation period, symptomatic trees had become a rarity. The arrested development of pitch canker is suggestive of a reduction in the frequency and duration of fog near the coast, which provides conditions necessary for the pathogen to establish infections.

scholarly journals Identification of Ancient Irrigation Practices based on the Carbon Isotope Discrimination of Plant Seeds: a Case Study from the South-East Iberian Peninsula

1997 ◽  
Vol 24 (8) ◽  
pp. 729-740 ◽  
Author(s):  
José Luis Araus ◽  
Anna Febrero ◽  
Ramon Buxó ◽  
Maria Oliva Rodrı́guez-Ariza ◽  
Fernando Molina ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Carbon Isotope ◽  
Carbon Isotope Discrimination ◽  
The South ◽  
Isotope Discrimination ◽  
Plant Seeds ◽  
Irrigation Practices

Comparison of Bird Counts From Pine Forest and Indigenous Vegetation.

1977 ◽  
Vol 4 (3) ◽  
pp. 281 ◽  
Author(s):  
PV Driscoll
Keyword(s):  
Pinus Radiata ◽  
New South ◽  
New South Wales ◽  
Bird Communities ◽  
Pine Forest ◽  
Native Forest ◽  
Number Of Species ◽  
Eucalyptus Forest ◽  
South Wales ◽  
Forest Habitats

Bird counts were taken in Feb., March and July 1975 in 4 native habitats, ranging from wet sclerophyll Eucalyptus forest to mallee (E. stricta)-heath on the Boyd Plateau, and two Pinus radiata habitats (20 yr and 40 yr) in the Jenolan State Forest, New South Wales, Australia. In each season the number of birds and the number of species was highest in the native forest habitats, lower in the pine habitats and least in the mallee-heath. The composition of native forest, pine forest, and mallee-heath bird communities shows considerable differences.

scholarly journals Cirrus clouds properties derived from polarized micro pulse lidar (p-mpl) observations at the atmospheric observatory ‘el arenosillo’ (sw iberian peninsula): a case study for radiative implications

2018 ◽  
Vol 176 ◽  
pp. 05042
Author(s):  
Ana del Águila ◽  
Laura Gómez ◽  
José Manuel Vilaplana ◽  
Mar Sorribas ◽  
Carmen Córdoba-Jabonero
Keyword(s):  
Climate Change ◽  
Iberian Peninsula ◽  
Surface Radiation ◽  
Radiative Balance ◽  
Macrophysical Properties ◽  
Micro Pulse Lidar ◽  
First Time ◽  
Change Concerns

Cirrus (Ci) clouds are involved in Climate Change concerns since they affect the radiative balance of the atmosphere. Recently, a polarized Micro Pulse Lidar (P-MPL), standard system within NASA/MPLNET has been deployed at the INTA/Atmospheric Observatory ‘El Arenosillo’ (ARN), located in the SW Iberian Peninsula. Hence, the INTA/P-MPL system is used for Ci detection over that station for the first time. Radiative effects of a Ci case observed over ARN are examined, as reference for future long-term Ci observations. Optical and macrophysical properties are retrieved, and used for radiative transfer simulations. Data are compared to the measured surface radiation levels and all-sky images simultaneously performed at the ARN station.

Native species dominate the millipede fauna in a second-rotation Pinus radiata plantation in Tasmania, Australia

2005 ◽  
Vol 11 (1) ◽  
pp. 17 ◽  
Author(s):  
Robert Mesibov
Keyword(s):  
Pinus Radiata ◽  
Native Species ◽  
Local Scale ◽  
Native Forest ◽  
Historical Records ◽  
Pine Plantation ◽  
North Central ◽  
Abandoned Farmland ◽  
Plantation Development ◽  
Survey Results

Soil-dwelling millipedes were methodically hand-sampled in two second-rotation Pinus radiata stands in Stoodley Plantation in north-central Tasmania. Eleven of 14 species collected were natives, and native millipedes comprised 83% of the 1 456 identified specimens. The average millipede catch in 40 x 0.5 m2 quadrats was 74 individuals/m2. All nine of the native species of Chordeumatida, Polydesmida and Polyzoniida found in the survey had previously been collected in native forest within a 10 km radius of the pine plantation. Historical records indicate that Stoodley Plantation was established on abandoned farmland, and the two sampled areas have carried P. radiata for at least 60 years. The survey results support the suggestion that plantation development on cleared farmland can assist in local-scale conservation of native invertebrates.

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