Soil erosion studies in Central Greece based on rainfall simulator: effect of soil type, rainfall intensity and soil slope and topsoil treatment
2004
Theocharopoulos, S.P. (National Agricultural Research Foundation of Greece, Athens. Inst. of Soil Science) | Christou, M. (National Agricultural Research Foundation of Greece, Athens. Inst. of Soil Science) | Tsouloucha, F. (National Agricultural Research Foundation of Greece, Athens. Inst. of Soil Science) | Tountas, P. (National Agricultural Research Foundation of Greece, Athens. Inst. of Soil Science) | Petrakis, P. (National Agricultural Research Foundation of Greece, Athens. Inst. of Mediterranean Ecosystems) | Camarados, V. (National Agricultural Research Foundation of Greece, Athens. Inst. of Soil Science) | Kouloubis, P. (National Agricultural Research Foundation of Greece, Athens. Inst. of Soil Science) | Spyropoulou, I. (National Agricultural Research Foundation of Greece, Athens. Inst. of Soil Science) | Ntoula, M. (National Agricultural Research Foundation of Greece, Athens. Inst. of Soil Science)
إنجليزي. Using a portable rainfall simulator, soil water erosion was studied in eight representative soils in Viotia area, in Central Greece. Soil loss, runoff water, content of soil in runoff water, organic matter, P, K and total N in the soil lost and NO3-, P and K in the runoff water were monitored on samples accumulated at five minutes intervals for a duration of thirty minutes after runoff initiation time. Also the effect of rainfall intensity (80, 40 and 20 mm/h), of soil slope (9 and 5 deg) and of the topsoil treatment (ploughed, unploughed and wheat covered) on soil erosion was studied. Erosion and runoff rates were different among soils and were affected by rainfall intensity, soil slope and topsoil treatment. Ponding time was positively correlated to porosity, clay content and to CEC. In runoff water nitrates were correlated to soil organic matter content and P and K (in runoff water) were correlated with soil P and K. N and K in the eroded soil material were correlated with soil N and K respectively
اظهر المزيد [+] اقل [-]إيطالي. [Utilizzando un simulatore di pioggia portatile, è stata studiata l´erosione idrica del suolo in otto suoli rappresentativi dell´area di Viotia, nella Grecia Centrale. La perdita di terreno, l´acqua di deflusso, il contenuto di terreno nell´acqua di deflusso, la sostanza organica, il P, il K e l´N totale nel terreno perso e l´NO3-, il P e il K nell´acqua di deflusso sono stato monitorati in campioni accumulati a intervalli di cinque minuti per la durata di 30 minuti dal momento di inizio del deflusso. E´ stato pure studiato l´effetto dell´intensità della precipitazione (80, 40 e 20 mm/h), della pendenza (9 e 5 gradi) e del trattamento dello strato superficiale del terreno (arato, non arato, coperto da frumento) sull´erosione del suolo. I livelli di erosione e di deflusso delle acque sono risultati diversi fra i suoli ed erano influenzati dall´intensità della precipitazione, dalla pendenza e dal trattamento dello strato superficiale del terreno. Il tempo di ristagno dell´acqua era correlato positivamente con la porosità, il contenuto di argilla e la CSC. Nell´acqua di deflusso i nitrati erano correlati con il contenuto di sostanza organica e il P e il K (nell´acqua di deflusso) erano correlati con il P e il K del suolo. L´N e il K nel materiale eroso dal suolo erano correlati rispettivamente con l´N e il K del suolo.]
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Istituto di Servizi per il Mercato Agricolo Alimentare