Vladimír Šimanský, Jerzy Jonczak, Sanandam Bordoloi, Ján Horák
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引用次数: 0
摘要
最佳的土壤结构与土壤有机质(SOM)有关。不同的土壤管理方法会交替改变土壤有机质,但对葡萄园土壤结构形成的碳储量研究不够。此外,了解葡萄园土壤管理措施对 SOM 和土壤结构变化的影响对于可持续葡萄栽培至关重要。本研究在斯洛伐克尼特拉市附近的一个高产葡萄园中进行,我们调查了在不同土壤管理措施下,水稳团聚体(WSA)各粒径部分的动态变化,这是土壤有机质(SOM)变化的结果。试验采用了五种不同的管理方法--密集耕作法(T)、密集耕作法加家禽粪便(T + M)、带状草地(G)、低氮磷钾施肥法(氮磷钾 1)和高氮磷钾施肥法(氮磷钾 2)。结果表明,NPK 1 的土壤有机碳(SOC)含量最高(20.3 ± 3.68 g kg-1),可变碳(CL)含量最高(2.71 ± 0.78 g kg-1),土壤结构最有利,但 G 处理的土壤结构和固碳效果最好(SOC:19.9 ± 3.88 g kg-1;CL:2.53 ± 0.83 g kg-1)。与 CL 相比,SOC 对水稳团聚体含量的影响更为显著。SOM 的剧烈变化发生在粒径较大的 2 毫米以上的水稳大团聚体(WSAma)中,而粒径较小的 2 毫米以下的 WSAma 和水稳微团聚体则更为稳定。
A field investigation on the soil management practices in a productive vineyard considering C sequestration and water resistance of soil structure
Optimal soil structure is linked to soil organic matter (SOM). Different soil management practice alternates SOM but the storing C to soil structure formation in vineyard soils is not sufficiently studied. In addition, understanding the impact of soil management practices in vineyard on changes in SOM and soil structure is crucial for sustainable viticulture. In this study conducted in a productive vineyard near Nitra city, Slovakia, we investigated the dynamics of individual size-fractions of water-stable aggregates (WSA) as results of changes in soil organic matter (SOM) under different soil management practices. Five distinct management practices – Intensive tillage system (T); Intensive tillage system with poultry manure (T + M); Strip grass (G); Fertilization in lower rates of NPK (NPK 1) to grass strips; and Fertilization in higher level of NPK (NPK 2) to grass strips were adopted to to be tested. The results have shown that the highest content of soil organic carbon (SOC) 20.3 ± 3.68 g kg−1, labile carbon (CL) 2.71 ± 0.78 g kg−1, and the most favor soil structure were identified in NPK 1, however, the most effectively improved soil structure and C sequestration (SOC: 19.9 ± 3.88 g kg−1; CL: 2.53 ± 0.83 g kg−1) was under G treatment. SOC had a more significant influence on the content of water-stable aggregates than CL. Intense changes in SOM took place in larger size-fractions of water-stable macroaggregates (WSAma) above 2 mm, while smaller WSAma below 2 mm and water-stable microaggregates were more stable.
期刊介绍:
Established in 1946, Biologia publishes high-quality research papers in the fields of microbial, plant and animal sciences. Microbial sciences papers span all aspects of Bacteria, Archaea and microbial Eucarya including biochemistry, cellular and molecular biology, genomics, proteomics and bioinformatics. Plant sciences topics include fundamental research in taxonomy, geobotany, genetics and all fields of experimental botany including cellular, whole-plant and community physiology. Zoology coverage includes animal systematics and taxonomy, morphology, ecology and physiology from cellular to molecular level.