LONG-TERM ORGANIC FARMING ON A CITRUS PLANTATION RESULTS IN SOIL ORGANIC CARBON RECOVERY

被引：71

作者：

Novara, A. ^{[1
]}

Pulido, M. ^{[2
]}

Rodrigo-Comino, J. ^{[3
]}

Di Prima, S. ^{[4
,5
]}

Smith, P. ^{[6
]}

Gristina, L. ^{[1
]}

Gimenez-Morera, A. ^{[7
]}

Terol, E. ^{[8
]}

Salesa, D. ^{[9
]}

Keesstra, S. ^{[10
,11
]}

机构：

[1] Univ Palermo, Dipartimento Sci Agr Alimentari & Forestali, Viale Sci,Ed 4, I-90128 Palermo, Italy

[2] Univ Extremadura, Fac Philosophy & Letters, GeoEnvironm Res Grp, Avda Univ S-N, Caceres 10071, Spain

[3] Univ Malaga, Dept Geog, Inst Geomorfol & Suelos, Edificio Ada Byron,Ampliac Campus Teatinos, E-29071 Malaga, Spain

[4] Univ Lyon, 3 Rue Maurice Audin, F-69518 Vaulx En Velin, France

[5] Univ Lyon 1, UMR5023 Ecol Hydrosyst Nat Anthropises, CNRS, ENTPE, 3 Rue Maurice Audin, F-69518 Vaulx En Velin, France

[6] Univ Aberdeen, Inst Biol & Environm Sci, 23 St Machar Dr, Aberdeen AB24 3UU, Scotland

[7] Univ Politecn Valencia, Dept Econ & Social Sci, Camino Vera S-N, E-46022 Valencia, Spain

[8] Univ Politecn Valencia, Dept Cartog Engn Geodesy & Photogrammetry, Camino Vera S-N, E-46022 Valencia, Spain

[9] Univ Valencia, Dept Geog, Soil Eros & Degradat Res Grp, Blasco Ibanez 28, Valencia 46010, Spain

[10] Wageningen Univ Res, Team Soil Water & Land Use, Droevendaalsesteeg 3, NL-6708 PB Wageningen, Netherlands

[11] Univ Newcastle, Civil Surveying & Environm Engn, Callaghan, NSW 2308, Australia

来源：

CUADERNOS DE INVESTIGACION GEOGRAFICA | 2019年 / 45卷 / 01期

关键词：

Organic carbon; citrus; long-term experiment; carbon sequestration rate; AGRICULTURAL LAND ABANDONMENT; ECOSYSTEM SERVICES; NITROGEN AVAILABILITY; QUALITY; MANAGEMENT; MATTER; EROSION; ORCHARDS; TILLAGE; IMPACT;

D O I：

10.18172/cig.3794

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

It has been shown that soil management under organic farming can enhance soil organic carbon, thereby mitigating atmospheric greenhouse gas increases, but until now quantitative evaluations based on long term experiments are scarce, especially under Mediterranean conditions. Changes in soil organic carbon (SOC) content were examined in response to organic management with cover crops in a Mediterranean citrus plantation using 21 years of survey data. Soil organic carbon increase was more apparent 5 years after a land management change suggesting that, for citrus plantations on Mediterranean conditions, studies should be longer than five years in duration. Soil organic carbon sequestration rate did not significantly change during the 21 years of observation, with values ranging from -1.10 Mg C ha(-1) y(-1) to 1.89 Mg C ha(-1) y(-1). After 21 years, 61 Mg CO2 ha(-1) were sequestered in long-lived soil C pools. These findings demonstrate that organic management is an effective strategy to restore or increase SOC content in Mediterranean citrus systems.

引用

页码：271 / 286

页数：16

共 73 条

[1] EFFECT OF ORGANIC-MATTER ON BULK AND TRUE DENSITIES OF SOME UNCULTIVATED PODZOLIC SOILS [J].