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The commercial tree species Dipteryx odorata improves soil physical and biological attributes in abandoned pastures
Ecological Engineering ( IF 3.8 ) Pub Date : 2021-01-14 , DOI: 10.1016/j.ecoleng.2020.106143
Alberto Bentes Brasil Neto , Nilza Martins de Queiroz Xavier Brasil , Paulo Ivan Lima de Andrade , Augusto César Falcão Sampaio , Norberto Cornejo Noronha , Eduardo Jorge Maklouf Carvalho , Arystides Resende Silva , Gustavo Schwartz

In the Eastern Amazon, abandoned and unproductive areas are widespread and normally found as a result of soil degradation. In this study we presented the following scientific question: Is it possible to improve the quality of soil physical and biological attributes of areas previously occupied by abandoned pastures with commercial plantation of the native species Dipteryx odorata? To respond this question, the objective of this study was to evaluate the effects of D. odorata plantations after abandoned pastures on the soil physical and biological attributes, using the soil from a successional forest in the municipality of Óbidos, Eastern Amazon, Brazil, as a reference. Disturbed and undisturbed soil samples were collected from depths 0–10, 10–20, and 20–40 cm to determine organic matter content, bulk density, macro-, micro-, and total porosity. Soil macrofauna was collected at depth 0–10 cm and visual evaluation of soil structure was also conducted. The plantation accumulated organic matter and presented higher density of the macrofauna orders Haplotaxida and Blattodea, suborder Isoptera, and promoted better soil structural quality. Results were similar to those of the reference forest and higher than those of abandoned pastures. The D. odorata plantation was therefore an effective alternative for forest recovery of degraded areas in the region.



中文翻译:

商业树种Dipteryx odorata改善了废弃草场的土壤物理和生物学特性

在东亚马逊地区,荒废和生产力低下的地区很普遍,通常是由于土壤退化而发现的。在这项研究中,我们提出了以下科学问题:是否可以通过商业种植原生物种Dipteryx odorata来改善以前被废弃牧场占据的地区的土壤物理和生物学属性的质量?为了回答这个问题,本研究的目的是评估香茅的功效以巴西东部亚马逊奥比多斯市一个接替森林的土壤为参考,在废弃牧场上种植人工草地,以保持土壤的物理和生物学特性。从0–10、10–20和20–40厘米深度采集扰动和未扰动的土壤样品,以确定有机质含量,堆积密度,宏观,微观和总孔隙度。在0-10 cm深度收集土壤大型动物,并对土壤结构进行目测评估。人工林中积累了有机质,并呈现出较高的密度,包括单倍体亚目和单翅目亚目等翅目动物,并促进了更好的土壤结构质量。结果与参考林相似,但高于废弃草场。该D.飞机草 因此,人工林是该地区退化地区森林恢复的有效替代方法。

更新日期:2021-01-14
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