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...
The amount and composition of root exudates—low-molecular-weight carbon compounds released from living plant roots into soil—are expected to shift under global change, and a growing body of work indicates that root exudates have important impacts on stable soil organic matter dynamics. However, mo...
Soil organic matter formation as affected by eucalypt litter biochemistry — Evidence from an incubation study Geoderma, Volume 312, 2018, pp. 121-129 Luís F.J. Almeida,…, Ivo R. Silva Plant- or microbial-derived? A review on the molecular composition of stabilized soil organic matter Soil...
The composition of soil includes organic matter, minerals, water and air. Which part mainly comes from the atmosphere? A. Organic matter B. Minerals C. Water D. Air 相关知识点: 试题来源: 解析 D。解析:土壤的组成成分中,矿物质(B选项)主要来源于岩石圈;有机物(A选项)主要由生物遗体分解而来,...
and used laboratory incubations to determine the decay rates and pool structure of litter-derived organic matter. Early in decomposition, soil organic matter formed when non-structural compounds were lost from litter. Soil organic matter also formed at the end of decomposition, when both non-structu...
Wetland soil organic matter composition in a Mediterranean semiarid wetland (Las Tablas de Daimiel, Central Spain): Insight into different carbon sequestra... Wetland soils from a Mediterranean semiarid wetland (Las Tablas de Daimiel, Central Spain) were studied to characterize the organic matter (...
Changes in the molecular composition of soil organic matter (SOM) resulting from compost application are not sufficiently known at the molecular scale even though this is a major issue for soil fertility and soil carbon sequestration. Therefore, the present study investigated effects of long-term com...
Soil organic matter at high latitudes is an important and sensitive indicator of climate change. This article describes the main morphological features, chemical properties, and composition of organic matter in the main types of soils along the altitudinal gradient of the Subpolar Urals. Soils formed...
composition of soil organic matter and nature of humus substances. Discussions focus on organic substances of individual nature, strictly humus substances in soil organic matter, and humus substances as a complex of high molecular- weight compounds. The text then examines the biochemistry of humus ...
Fig. 1: Drivers of SOM composition and persistence. Ordination of soil organic matter composition originated from a microbial diversity experiment in which a soil inoculum from a temperate forest was manipulated by consecutive dilutions (D0 > D1 > D2); selection of spore-forming microorg...