Use of barley straw residues to avoid high erosion and runoff rates on persimmon plantations in Eastern Spain under low frequency-high magnitude simulated rainfall events

作者：Cerda, Artemi^*; Gonzalez-Pelayo, Oscar; Gimenez-Morera, Antonio; Jordan, Antonio; Pereira, Paulo; Novara, Agata; Brevik, Eric C.; Prosdocimi, Massimo; Mahmoodabadi, Majid; Keesstra, Saskia; Garcia Orenes, Fuensanta; Ritsema, Coen J.

来源：Soil Research, 2016, 54(2): 154-165.

DOI：10.1071/SR15092

• persimmon plantations
• management
• erosion
• hydrology
• rainfall simulation

Soil and water losses due to agricultural mismanagement are high and non-sustainable in many orchards. An experiment was set up with rainfall simulation at 78 mm h(-1) over 1 hour on 20 paired plots of 2 m(2) (bare and straw covered) in new persimmon plantations in Eastern Spain. Effects of straw cover on the control of soil and water losses were assessed. An addition of 60% straw cover (75 gm(-2)) resulted in delayed ponding and runoff generation and consequently reduced water losses from 60% to 13% of total rainfall. The straw cover reduced raindrop impact and thus sediment detachment from 1014 to 47 g plot(-1) h(-1). The erosion rate was reduced from 5.1 to 0.2 Mg ha-(1) h(-1). The straw mulch was found to be extremely efficient in reducing soil erosion rates.

• 出版日期2016