Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jhazmat.2013.06.049 |
Irrigation agriculture affects organic matter decomposition in semi-arid terrestrial and aquatic ecosystems | |
Arroita, Maite1; Causape, Jesus2; Comin, Francisco A.3; Diez, Joserra4; Jose Jimenez, Juan3; Lacarta, Juan3; Lorente, Carmen3; Merchan, Daniel2; Muniz, Selene3; Navarro, Enrique3; Val, Jonatan3; Elosegi, Arturo1 | |
通讯作者 | Arroita, Maite |
来源期刊 | JOURNAL OF HAZARDOUS MATERIALS
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ISSN | 0304-3894 |
EISSN | 1873-3336 |
出版年 | 2013 |
卷号 | 263页码:139-145 |
英文摘要 | Many dryland areas are being converted into intensively managed irrigation crops, what can disrupt the hydrological regime, degrade soil and water quality, enhance siltation, erosion and bank instability, and affect biological communities. Still, the impacts of irrigation schemes on the functioning of terrestrial and aquatic ecosystems are poorly understood. Here we assess the effects of irrigation agriculture on breakdown of coarse organic matter in soil and water. We measured breakdown rates of alder and holm oak leaves, and of poplar sticks in terrestrial and aquatic sites following a gradient of increasing irrigation agriculture in a semi-arid Mediterranean basin transformed into irrigation agriculture in 50% of its surface. Spatial patterns of stick breakdown paralleled those of leaf breakdown. In soil, stick breakdown rates were extremely low in non-irrigated sites (0.0001-0.0003 day(-1)), and increased with the intensity of agriculture (0.0018-0.0044 day(-1)). In water, stick breakdown rates ranged from 0.0005 to 0.001 day(-1), and increased with the area of the basin subject to irrigation agriculture. Results showed that irrigation agriculture affects functioning of both terrestrial and aquatic ecosystems, accelerating decomposition of organic matter, especially in soil. These changes can have important consequences for global carbon budgets. (C) 2013 Elsevier B.V. All rights reserved. |
英文关键词 | Irrigation agriculture Ecosystem functioning Breakdown Stream Soil |
类型 | Article |
语种 | 英语 |
国家 | Spain |
收录类别 | SCI-E |
WOS记录号 | WOS:000330814500019 |
WOS关键词 | LEAF-LITTER DECOMPOSITION ; LAND-USE ; SOIL PROPERTIES ; MEDITERRANEAN REGION ; TRACE-ELEMENTS ; CLIMATE-CHANGE ; WATER-QUALITY ; BREAKDOWN ; CARBON ; IMPACTS |
WOS类目 | Engineering, Environmental ; Environmental Sciences |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/178460 |
作者单位 | 1.Univ Basque Country, Fac Sci & Technol, Bilbao 48080, Spain; 2.Geol Survey Spain, Zaragoza 50006, Spain; 3.CSIC, Inst Pirenaico Ecol, Zaragoza 50059, Spain; 4.Univ Basque Country, Fac Educ, Vitoria 01006, Spain |
推荐引用方式 GB/T 7714 | Arroita, Maite,Causape, Jesus,Comin, Francisco A.,et al. Irrigation agriculture affects organic matter decomposition in semi-arid terrestrial and aquatic ecosystems[J],2013,263:139-145. |
APA | Arroita, Maite.,Causape, Jesus.,Comin, Francisco A..,Diez, Joserra.,Jose Jimenez, Juan.,...&Elosegi, Arturo.(2013).Irrigation agriculture affects organic matter decomposition in semi-arid terrestrial and aquatic ecosystems.JOURNAL OF HAZARDOUS MATERIALS,263,139-145. |
MLA | Arroita, Maite,et al."Irrigation agriculture affects organic matter decomposition in semi-arid terrestrial and aquatic ecosystems".JOURNAL OF HAZARDOUS MATERIALS 263(2013):139-145. |
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