Links between vegetation patterns, soil C and N pools and respiration rate under three different land uses in a dry Mediterranean ecosystem

2013 ◽  
Vol 13 (4) ◽  
pp. 641-653 ◽  
Author(s):  
María Almagro ◽  
José Ignacio Querejeta ◽  
Carolina Boix-Fayos ◽  
María Martínez-Mena
Geoderma ◽  
2019 ◽  
Vol 338 ◽  
pp. 247-258 ◽  
Author(s):  
Yun Zhang ◽  
Mulualem Tigabu ◽  
Zhigang Yi ◽  
Huitong Li ◽  
Zheng Zhuang ◽  
...  

2007 ◽  
Vol 120 (2-4) ◽  
pp. 250-258 ◽  
Author(s):  
I.K. Okore ◽  
H. Tijani-Eniola ◽  
A.A. Agboola ◽  
E.A. Aiyelari

2004 ◽  
Vol 34 (3) ◽  
pp. 509-518 ◽  
Author(s):  
J Bauhus ◽  
T Vor ◽  
N Bartsch ◽  
A Cowling

Despite the importance of gaps in the dynamics and management of many forest types, very little is known about the medium- to long-term soil C and N dynamics associated with this disturbance. This study was designed to test the hypothesis that gap creation and lime application, a routine measure in many European forests to ameliorate soil acidity, lead to accelerated litter decomposition and thus a reduction in the forest floor and soil C and N pools. Four gaps were created in 1989 in a mature European beech (Fagus sylvatica L.) forest on acid soil with a moder humus, and lime (3 t dolomite·ha–1) was applied to two of these and surrounding areas. Litter and fine-root decomposition was measured in 1992–1993 and 1996–1998 using litterbags. Forest floor (L, F, and H layers) and mineral soil (0–40 cm) C and N pools were determined in 1989 and 1997. Eight years following silvicultural treatments, there was no change in C and N over the entire forest soil profile including forest floor. Reductions in the F and H layers in limed gaps were compensated for by increases in soil C and N in the surface (0–10 cm) mineral soil. Decomposition of F litter was significantly accelerated in limed gaps, leading to the development of a mull–moder, whereas gap creation alone had no effect on mass loss of F material in litterbags. Gap size disturbances in this acid beech forest appear to have minimal influences on soil C and N stocks. However, when combined with liming, changes in the humus form and vertical distribution of soil C and N may occur.


2013 ◽  
Vol 03 (07) ◽  
pp. 297-313 ◽  
Author(s):  
Karolien Denef ◽  
Ilaria Del Galdo ◽  
Andrea Venturi ◽  
M. Francesca Cotrufo
Keyword(s):  
Soil C ◽  

2014 ◽  
Vol 312 ◽  
pp. 161-169 ◽  
Author(s):  
Yongfu Li ◽  
Jiaojiao Zhang ◽  
Scott X. Chang ◽  
Peikun Jiang ◽  
Guomo Zhou ◽  
...  

2020 ◽  
Vol 8 (1) ◽  
pp. 1-8
Author(s):  
Refki Aulia Wiwaha ◽  
Syahrul Kurniawan

The Kali Kungkuk micro watershed which is located in the upper area of Brantas watershed, had experienced forest conversion to horticulture during the last fourth decades. Since the physiographic of Kali Kungkuk micro watershed is hilly, forest conversion to horticulture may result in soil nutrient stock changes. The research aimed to analyze soil nutrient stock from forest to horticulture land uses (i.e. apple orchard and vegetables) in the Kali Kungkuk micro watershed. The field research was conducted on three different land uses (i.e. vegetable land (PK), apple orchard (PA), and forest (PH)) and four land slope classes (i.e. slope 0-8% (K1), 8-15% (K2), 15-25% (K3), and > 25% (K4)), with three, replicates plots of each. Soil samples were collected at three different depths (0-10, 10-30, and 30- 50 cm) from each plot. The parameters measured included soil texture, bulk density, standing litter mass, canopy cover, basal area, soil organic carbon and total nitrogen. Data analysis was conducted with Linear Mixed Effect Models with a level of 5% and a further analysis of LSD test level of 5% as well as a correlation test between observational parameters. The results showed that differences in land use and slope affected to significant differences in the content of soil organic C and total N. In general, forests had higher soil C and N stocks as compared to other land uses (i.e. apple orchard and vegetables). Furthermore, soil organic C and total N was higher in the low slopes (i.e. 0-8%) and (8-15%) as compared to the high slopes (i.e. 15-25%) and (> 25%). The study found a positive correlation between soil nutrient stocks (i.e. C and N) and clay content. In contrast, soil C and N stock was negatively correlated with soil bulk density. Soil fertility degradation that occurs in the Kali Kungkuk micro watershed (i.e. apple orchard and vegetables) requires serious attention in soil management in order to ensure the sustainability of apple and vegetable production.


Biology ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 23 ◽  
Author(s):  
Eren Taskin ◽  
Roberta Boselli ◽  
Andrea Fiorini ◽  
Chiara Misci ◽  
Federico Ardenti ◽  
...  

Combining no-till and cover crops (NT + CC) as an alternative to conventional tillage (CT) is generating interest to build-up farming systems’ resilience while promoting climate change adaptation in agriculture. Our field study aimed to assess the impact of long-term NT + CC management and short-term water stress on soil microbial communities, enzymatic activities, and the distribution of C and N within soil aggregates. High-throughput sequencing (HTS) revealed the positive impact of NT + CC on microbial biodiversity, especially under water stress conditions, with the presence of important rhizobacteria (e.g., Bradyrhizobium spp.). An alteration index based on soil enzymes confirmed soil depletion under CT. C and N pools within aggregates showed an enrichment under NT + CC mostly due to C and N-rich large macroaggregates (LM), accounting for 44% and 33% of the total soil C and N. Within LM, C and N pools were associated to microaggregates within macroaggregates (mM), which are beneficial for long-term C and N stabilization in soils. Water stress had detrimental effects on aggregate formation and limited C and N inclusion within aggregates. The microbiological and physicochemical parameters correlation supported the hypothesis that long-term NT + CC is a promising alternative to CT, due to the contribution to soil C and N stabilization while enhancing the biodiversity and enzymes.


2006 ◽  
Vol 38 (7) ◽  
pp. 1943-1955 ◽  
Author(s):  
Thomas L. Thompson ◽  
Eli Zaady ◽  
Pang Huancheng ◽  
Thomas B. Wilson ◽  
Dean A. Martens
Keyword(s):  
Soil C ◽  
C And N ◽  

Ecology ◽  
2005 ◽  
Vol 86 (2) ◽  
pp. 419-430 ◽  
Author(s):  
Anita C. Risch ◽  
Martin F. Jurgensen ◽  
Martin Schütz ◽  
Deborah S. Page-Dumroese

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