globalchange  > 过去全球变化的重建
DOI: 10.3832/ifor2907-012
WOS记录号: WOS:000475689700005
论文题名:
Carbon and nutrient contents in the miscellaneous fraction of litterfall under different thinning intensities in a semiarid Pinus halepensis afforestation
作者: Segura, Carmen1; Fernandez-Ondono, Emilia1; Noelia Jimenez, M.2; Navarro, Francisco B.3
通讯作者: Segura, Carmen
刊名: IFOREST-BIOGEOSCIENCES AND FORESTRY
ISSN: 1971-7458
出版年: 2019
卷: 12, 页码:375-382
语种: 英语
英文关键词: Mediterranean Region ; Aleppo Pine ; Micro ; and Macronutrient Concentrations ; Nutrient Dynamics ; C Inputs ; Pine Processionary
WOS关键词: FOREST FLOOR ; SCOTS PINE ; STANDS ; FALL ; DYNAMICS ; NITROGEN ; CLIMATE ; RETURN ; SOIL ; PLANTATION
WOS学科分类: Forestry
WOS研究方向: Forestry
英文摘要:

Litterfall evaluation and the effects caused by forestry practices provide valuable information on nutrient-cycle dynamics in managed forests. So far, most of the studies have focused on leaf-fall, omitting other litterfall fractions that can be also relevant for forest and soil modelling in a global change context. With this aim the miscellaneous fraction was quantified in a Pinus halepensis afforestation in the semiarid SE of Spain five years after four different thinning regimes were applied (T75: 75% of mean basal area removed; T60: 60%; T48: 48%; and T0: no thinning). Concentrations and pools (kg ha(-1)) of carbon and nutrients in the miscellanea fraction were monthly analysed for C and N (June 2010-May 2013), and for P, K, Na, Ca, Mg, Fe, Zn, and Mn (June 2011-May 2013). No differences in concentrations of carbon and nutrients were found among treatments with the exception of N, which showed significant differences between T75 and T60 plots. For pools, a high variability was found over time with maximum C and N pools found during spring, likely reflecting the influence of Thaumetopoea pityocampa attacks. Thinning affected C, N, Mn, and Zn pools in 2011-2012 period, and P, K, Ca, Mg, Mn, Fe, and Zn pools in 2012-2013. Significant differences were mainly found between the most intensive treatment (T75) and unthinned plots (T0). The percentage of annual mean C and nutrient pools in miscellanea showed the importance of its monitoring, with pools that represented from 43.0% to 57.9% of the total litterfall for C (278.81-746.01 kg ha(-1) yr(-1)), N (4.18-10.44 kg ha(-1) yr(-1)), and P (0.37-1.43 kg ha(-1) yr(-1)). Our results stress the high relevance of miscellany monitoring in order to gain a better understanding of nutrient cycles in forest ecosystems.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/140929
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作者单位: 1.Univ Granada, Fac Sci, Dept Soil Sci & Agr Chem, C Severo Ochoa S-N, E-18071 Granada, Spain
2.Univ Granada, Fac Pharm, Dept Bot, Campus Cartuja, E-18071 Granada, Spain
3.Govt Andalusia, Inst Agr Res & Training Andalusia IFAPA, Area Agr & Environm, Camino Purchil S-N, Granada 18004, Spain

Recommended Citation:
Segura, Carmen,Fernandez-Ondono, Emilia,Noelia Jimenez, M.,et al. Carbon and nutrient contents in the miscellaneous fraction of litterfall under different thinning intensities in a semiarid Pinus halepensis afforestation[J]. IFOREST-BIOGEOSCIENCES AND FORESTRY,2019-01-01,12:375-382
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