Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.11.030 |
Thinning increases tree growth by delaying drought-induced growth cessation in a Mediterranean evergreen oak coppice | |
Cabon, Antoine1,2,3; Mouillot, Florent1; Lempereur, Morine1,4; Ourcival, Jean-Marc1; Simioni, Guillaume5; Limousin, Jean-Marc1 | |
2018-02-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 409页码:333-342 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Spain |
英文摘要 | The Mediterranean evergreen oak coppices of Southern Europe are increasingly vulnerable to drought because of both the ongoing climate change that increases drought length and intensity, and the lack of forest management that induces a structural aging of the stands. Decreasing stand density through thinning has been widely regarded as a means to improve the resistance of evergreen oak forests to climate change by decreasing the competition for water amongst the remaining stems. Data from a 30-years thinning experiment, that includes a control and four thinning intensity treatments (from 25% to 80% of basal area removed), in a coppiced holm oak (Quercus ilex L.) forest of southern France, was used to quantify the effects of thinning on stem growth. Building on the 'sink limitation' paradigm, which proposes that tree growth is controlled by phenology and climatic constraints and decoupled from carbon assimilation, we investigated if the effect of thinning on stem growth was explained by a delayed drought-induced growth cessation. Using a water balance model, we simulated the date of drought-induced growth cessation, previously found to correspond to the day of the year when water potential drops below a threshold of -1.1 MPa, and used it to predict growth in the different treatments of the thinning experiment. Thinning increased long-term growth at the stem level but decreased the wood biomass at the stand level. Decreasing stem density, and hence the leaf area index, was simulated to delay the date of drought-induced growth cessation. A growth model based on the date of growth cessation explained 85% of the effect of thinning on stem growth over the 30-year period of the study, and 95% for the first five years after thinning. The canopy density for which the effect of thinning is the most beneficial was found to maximize the growth duration without lifting completely the water limitation in summer. Moderate thinning had a sustained beneficial effect on the growth of all stem size classes, whereas stronger thinning intensities increased the size asymmetry of competition and their overall effect dropped faster. Our simple predictive model based on the simulation of the water balance as a function of stand density opens the way to providing management guidelines for the optimization of tree density as a function of water limitation in Mediterranean evergreen woodlands. |
英文关键词 | Quercus ilex L. Thinning Growth Water balance Summer drought Sink limitation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425578000033 |
WOS关键词 | LEAF-AREA INDEX ; SCOTS PINE STANDS ; QUERCUS-ILEX L ; CARBON ALLOCATION ; WATER RELATIONS ; CLIMATE-CHANGE ; RADIAL GROWTH ; STEM GROWTH ; LAND-COVER ; FOREST |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23974 |
专题 | 气候变化 |
作者单位 | 1.Univ Paul Valery Montpellier, Univ Montpellier, EPHE, CEFE,UMR 5175,CNRS, 1919 Route Mende, F-34293 Montpellier 5, France; 2.Forest Sci Ctr Catalonia CEMFOR CTFC, E-25280 Solsona, Spain; 3.CREAF, E-08193 Barcelona, Spain; 4.ADEME, 20 Ave Gresille,BP 90406, F-49004 Angers 01, France; 5.INRA, Unite Ecol Forets Mediterraneennes UR629, Site Agroparc, F-84914 Avignon 9, France |
推荐引用方式 GB/T 7714 | Cabon, Antoine,Mouillot, Florent,Lempereur, Morine,et al. Thinning increases tree growth by delaying drought-induced growth cessation in a Mediterranean evergreen oak coppice[J]. FOREST ECOLOGY AND MANAGEMENT,2018,409:333-342. |
APA | Cabon, Antoine,Mouillot, Florent,Lempereur, Morine,Ourcival, Jean-Marc,Simioni, Guillaume,&Limousin, Jean-Marc.(2018).Thinning increases tree growth by delaying drought-induced growth cessation in a Mediterranean evergreen oak coppice.FOREST ECOLOGY AND MANAGEMENT,409,333-342. |
MLA | Cabon, Antoine,et al."Thinning increases tree growth by delaying drought-induced growth cessation in a Mediterranean evergreen oak coppice".FOREST ECOLOGY AND MANAGEMENT 409(2018):333-342. |
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