Selecting Populations for Non-Analogous Climate Conditions Using Universal Response Functions: The Case of Douglas-Fir in Central Europe
Debojyoti ChakrabortyTongli WangKonrad AndreMonika KonnertManfred J. LexerChristoph MatullaSilvio Schueler
65
Citation
62
Reference
10
Related Paper
Citation Trend
Abstract:
Identifying populations within tree species potentially adapted to future climatic conditions is an important requirement for reforestation and assisted migration programmes. Such populations can be identified either by empirical response functions based on correlations of quantitative traits with climate variables or by climate envelope models that compare the climate of seed sources and potential growing areas. In the present study, we analyzed the intraspecific variation in climate growth response of Douglas-fir planted within the non-analogous climate conditions of Central and continental Europe. With data from 50 common garden trials, we developed Universal Response Functions (URF) for tree height and mean basal area and compared the growth performance of the selected best performing populations with that of populations identified through a climate envelope approach. Climate variables of the trial location were found to be stronger predictors of growth performance than climate variables of the population origin. Although the precipitation regime of the population sources varied strongly none of the precipitation related climate variables of population origin was found to be significant within the models. Overall, the URFs explained more than 88% of variation in growth performance. Populations identified by the URF models originate from western Cascades and coastal areas of Washington and Oregon and show significantly higher growth performance than populations identified by the climate envelope approach under both current and climate change scenarios. The URFs predict decreasing growth performance at low and middle elevations of the case study area, but increasing growth performance on high elevation sites. Our analysis suggests that population recommendations based on empirical approaches should be preferred and population selections by climate envelope models without considering climatic constrains of growth performance should be carefully appraised before transferring populations to planting locations with novel or dissimilar climate.Keywords:
Reforestation
Dendroclimatology
Reforestation
Cite
Citations (9)
Reforestation
Afforestation
Cite
Citations (1)
The degree to which forest cover was lost across the Asia-Pacific region during the 20th century was probably unprecedented, as was the rate at which this loss occurred. While this forest loss continues, as the century unfolded, considerable reforestation also began to occur. This article reflects on reforestation efforts within the region.
Reforestation
Forest cover
Afforestation
Native forest
Cite
Citations (0)
Digitally processed Landsat MSS data and GIS technology were applied to work out a Land Suitability classification for reforestation activities in southern Sri Lanka. The methodology was designed to solve three main problems, i, e., 1) Where dose forest cover exist? 2) Where are the regions suitable for reforestation? and 3) Where are the regions impossible for reforestation?. About 17% of the total land area was classified as practically considerable for reforestation directed to the land suitability classification. More than 80% of this area was categorized as highly suitable or suitable lands for reforestation. If this reforestation program is implemented, the total forest area will increase from 12% to 25% in the study area.
Reforestation
Sri lanka
Forest cover
Land Cover
Afforestation
Cite
Citations (3)
Reforestation
Cite
Citations (8)
Reforestation
Value (mathematics)
Chain (unit)
Cite
Citations (6)
This study reviews and assesses nongovernment reforestation in the Philippines vis-a-vis government and total reforestation using primary and secondary data. The objective is to identify issues and problems related to nongovernment reforestation and recommend actions that can be undertaken to address them. It finds that government reforestation dominates total reforestation, while nongovernment reforestation only has a relatively small contribution in recent years. During the first three years of implementing the National Greening Program, the growth of nongovernment reforestation had been erratic, increasing in 2011 but decreasing in 2012 and 2013. This study asserts that private reforestation--or reforestation conducted by the private sector under no agreement with the government--has been the main driver of nongovernment reforestation at present. However, its full development as an industry has been hindered by various institutional, production, and marketing issues and problems. This study recommends ways to address these problems and issues to move nongovernment reforestation forward.
Reforestation
Cite
Citations (0)
Reforestation
Natural regeneration
Afforestation
Cite
Citations (4)
The Heilongjiang province state-owned forestry area began to develop artificial regeneration reforestation in a planned way from1951.Up to the end of 2005,the area reached 4.843 million hm2,among which 2.874 million hm2 were successfully prevented and the preservation rate was taken by 59.4%.Based on historical experience of developing artificial forest,the paper analyzed the failure cause of artificial regeneration reforestation and the volumes and structure of existing trees,to guide health development of management of artificial forest.
Reforestation
Natural regeneration
Afforestation
Cite
Citations (0)
The study reviewed and assessed nongovernment reforestation in the Philippines vis-a-vis government and total reforestation using primary and secondary data. The end purpose was to identify issues and problems related to nongovernment reforestation and recommend actions that can be undertaken to address them. The study found that government reforestation dominated total reforestation while nongovernment reforestation only has a relatively small contribution in recent years. During the first three years of implementation of the National Greening Program, in particular, nongovernment reforestation had been erratic, increasing in 2011 but decreasing in 2012 and 2013. The study asserted that private reforestation, or reforestation conducted by the private sector under no agreement with the government, has been the main driver of nongovernment reforestation at present. However, its full development as an industry has been hindered by various institutional, production, and marketing issues and problems. The study recommended ways to address these problems and issues and move nongovernment reforestation forward.
Reforestation
Cite
Citations (1)