2篇
您的检索式：作者名="Rawan MLIH"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Soil organic matter amendments in date palm groves of the Middle Eastern and North African region:a mini-review显示文摘Countries in the Middle Eastern and North African(MENA) region are among the most water-scarce regions in the world, and their dryland soils are usually poor in organic carbon content(<0.5%). In this study, we summarize examples of how people in the few oases of the MENA region overcome environmental challenges by sustainably managing economically important date production. On the basis of the limited studies found in the existing literature, this mini-review focuses on the role of traditional soil organic matter amendments beneath the soil surface as a key tool in land restoration. We conclude that soil organic matter amendments can be very successful in restoring soil water and preventing the soil from salinization. | Rawan MLIH Roland BOL Wulf AMELUNG Nadhem BRAHIM | 2016 | Journal of Arid Land2016，8，1： | 1 |
| 2 | Soil Organic Matter Composition in Coastal and Continental Date Palm Systems: Insights from Tunisian Oases显示文摘In Tunisia, the coastal Chenini oasis is characterized by a lush vegetation cover, whereas more inland continental oases(e.g., the Guettaya oasis) have a very scarce vegetation cover. For sustaining date palm production in these areas, organic fertilizers are applied,either spread on the soil surface(in Chenini) or buried under a sand layer(in Guettaya). We examined at a molecular level how these management techniques affect soil organic matter composition in oasis systems. A dominance of fresh plant input for Guettaya was indicated by solid-state 13C nuclear magnetic resonance spectroscopy signals, which was most pronounced in the uppermost soil close to palms. Evidence for more degraded organic matter was found in deeper soil near the palms, as well as in the soil distant from the palms. Amino sugar contents were low in the uppermost Guettaya soil near the palms. The overall microbial amino sugar residue contents were similar in range as those found in other dryland environments. With increasing distance from trees, the amino sugar contents declined in Guettaya, where the palms grow on bare soil, but this was not the case for Chenini, which has multi-layer vegetation cover under palms. In agreement with the results from previous dryland studies, the soil microbial community in both oasis systems was dominated by fungi in topsoil, and a shift toward bacteria-derived residues in subsurface soil. This might be due to higher variability of temperature and moisture in topsoil and/or lower degradability of fungal remains;however, further research is required to confirm this hypothesis. | Rawan K. MLIH Martina I. GOCKE Roland BOL Anne E. BERNS Irabella FUHRMANN Nadhem BRAHIM | 2019 | Pedosphere2019，29，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员