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Soil Erosion and the Efficiency of the Conservation Measures in Mediterranean Hillslope Farming (SE Spain)
Eurasian Soil Science ( IF 1.4 ) Pub Date : 2021-05-25 , DOI: 10.1134/s1064229321050069
B. Cárceles Rodríguez , V. H. Durán Zuazo , M. Soriano Rodríguez , B. Gálvez Ruiz , I. F. García-Tejero

Abstract—

The rainfed mountain plantations in semiarid areas of the Mediterranean region with conventional practices register soil erosion values much higher than soil formation rates, affecting their long-term sustainability. The objective of this study during four-year monitoring period was to evaluate the response of soil erosion and runoff to different soil-management strategies (SMS) for the most representative rainfed fruit crops: almond, olive, and vineyard. The SMS based on conservation agriculture techniques were: minimum tillage, minimum tillage with plant strips, and no-tillage with plant strips. Soil erosion and runoff patterns were examined in erosion plots on a mountain slope under each SMS. The results demonstrated that the SMS investigated reduce runoff and soil erosion compared to conventional tillage in the study area. The combination of minimum tillage with plant strips in almond and vineyard showed to be more valuable strategy in soil control than unique minimum tillage, averaging a reduction of soil erosion and runoff of 36 and 39%, respectively. As for olive, the minimum tillage with plant strips with respect to no-tillage was able to lessen both soil erosion and runoff by 36%. Likewise, this strategy proved to be the most efficient for minimizing the adverse impact of heavy rains on water erosion development on hillslopes. Since an increase of high-intensity rainfalls in the Mediterranean semi-arid areas is expected, the implementation of sustainable strategies is urgent in order to mitigate the effects of climate change.



中文翻译:

地中海山坡耕作的土壤侵蚀和保护措施的效率(西班牙东南部)

摘要-

地中海地区半干旱地区采用常规做法的雨养山区人工林记录的土壤侵蚀值远高于土壤形成速率,从而影响了它们的长期可持续性。这项为期四年监测期的研究旨在评估最具代表性的雨养果类作物(杏仁,橄榄和葡萄园)对不同土壤管理策略(SMS)的土壤侵蚀和径流响应。基于保护性农业技术的SMS包括:最小耕作,带植物苗的最小耕作和带植物苗的免耕。在每个SMS下,在山坡上的侵蚀区检查土壤侵蚀和径流模式。结果表明,与研究区域的传统耕作相比,SMS进行了调查,减少了径流和水土流失。与单独的最小耕作相比,杏仁和葡萄园中的最小耕作与植物带的组合显示出更有价值的土壤控制策略,平均减少土壤侵蚀和径流分别为36%和39%。至于橄榄,与免耕相比,用植物带进行的最小耕作能够减少土壤侵蚀和径流36%。同样,这种策略被证明是最有效的方法,可以最大程度地减少暴雨对山坡水蚀发展的不利影响。由于预计地中海半干旱地区的高强度降雨将增加,因此迫切需要执行可持续战略以减轻气候变化的影响。平均减少的土壤侵蚀和径流分别减少了36%和39%。至于橄榄,与免耕相比,用植物带进行的最小耕作能够减少土壤侵蚀和径流36%。同样,这种策略被证明是最有效的,可以最大程度地减少暴雨对山坡水蚀发展的不利影响。由于预计地中海半干旱地区的高强度降雨将增加,因此迫切需要执行可持续战略以减轻气候变化的影响。平均减少的土壤侵蚀和径流分别减少了36%和39%。至于橄榄,与免耕相比,用植物带进行的最小耕作能够减少土壤侵蚀和径流36%。同样,这种策略被证明是最有效的方法,可以最大程度地减少暴雨对山坡水蚀发展的不利影响。由于预计地中海半干旱地区的高强度降雨将增加,因此迫切需要执行可持续战略以减轻气候变化的影响。事实证明,这种策略是最大程度地减少暴雨对山坡水蚀发展的不利影响的最有效方法。由于预计地中海半干旱地区的高强度降雨将增加,因此迫切需要执行可持续战略以减轻气候变化的影响。事实证明,这种策略是最大程度地减少暴雨对山坡水蚀发展的不利影响的最有效方法。由于预计地中海半干旱地区的高强度降雨将增加,因此迫切需要执行可持续战略以减轻气候变化的影响。

更新日期:2021-05-25
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