1 Irrigation agriculture affects organic matter decomposition in semi - 1 arid terrestrial and aquatic
نویسندگان
چکیده
18 Many dryland areas are being converted into intensively managed irrigation crops, what 19 can disrupt the hydrological regime, degrade soil and water quality, enhance siltation, 20 erosion and bank instability, and affect biological communities. Still, the impacts of 21 irrigation schemes on the functioning of terrestrial and aquatic ecosystems are poorly 22 understood. Here we assess the effects of irrigation agriculture on breakdown of coarse 23 organic matter in soil and water. We measured breakdown rates of alder and holm oak 24 leaves, and of poplar sticks in terrestrial and aquatic sites following a gradient of 25 increasing irrigation agriculture in a semi-arid Mediterranean basin transformed into 26 irrigation agriculture in 50% of its surface. Spatial patterns of stick breakdown 27 *Revised Manuscript Click here to view linked References
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