how does plant litter affect soil aggegrates

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Soil aggregates indirectly influence litter carbon storage

Each aggregate size had three replicates. Three types of plant litter (three g of dry matter) were mixed with 200 g of dry soil at a 1.5% litter-soil rate in the microcosms. A no litter addition treatment was used as the control (CK). There were a total of 96 microcosms (4 aggregate sizes × 4 litter types × 3 replications × 2 sampling times).

Climate change effects on plant-soil feedbacks and

Climate change thus affects plant inputs into the soil subsystem via litter and rhizodeposits and alters the composition of the living plant roots with which mutualistic symbionts, decomposers, and their natural enemies interact.

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Soil Quality Information

Soil health is the foundation of productive farming practices. Fertile soil provides essential nutrients to plants. Important physical characteristics of soil-like structures and aggregation allow water and air to infiltrate, roots to explore, and biota to thrive.

Plant litter chemistry and microbial priming regulate the

Apr 11, 2014 · (b) Schematic diagram representing the current knowledge (nonshaded area) linking plant litter input to soil organic matter (SOM) accrual, and the proposed mechanisms mediated by litter quality, microbial processes, and mineral associations that differentially link SOM accrual to its composition and stability (increasing intensity of grey, blue ...

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Distribution and effects of tree leaf litter on vegetation

The presence of litter had an effect on soil nutrient availability for plants. Nutrients like nitrate, calcium, magnesium, phosphorus and aluminium were higher during the first incubation period than during the second (Figure 6 and Supplementary Data, see online supplementary material). However, only nitrogen (total nitrogen and nitrate) and ...

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Soil Quality Information Sheet Soil Quality Indicators: Aggregate

Soil Quality Information Sheet Soil Quality Indicators: Aggregate Stability USDA Natural Resources Conservation Service April 1996 What are soil aggregates? Soil aggregates are groups of soil particles that bind to each other more strongly than to adjacent

How does litter quality affect the community of soil protists

Valentyna Krashevska, Mark Maraun, Stefan Scheu, How does litter quality affect the community of soil protists (testate amoebae) of tropical montane rainforests?, FEMS Microbiology Ecology, Volume 80, Issue 3, June 2012, Pages 603–607, ...

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THE EFFECT OF FIRE ON SOIL PROPERTIES. Leonard F. DeBano. ABSTRACT. Fire affects nutrient cycling and the physical, chemical, and biological properties of soils occupied by western-montane forests. Combustion of litter and soil organic matter (OM) increases the availability of some nutrients, although others are volatilized (for example, N, P, S).

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Aggregation – NDSU Soil Health

Aggregation – Arrangement of primary soil particles (sand, silt, clay) around soil organic matter and through particle associations. Aggregate stability is a good indicator of soil health. When you pick up a handful of soil, and it breaks apart into little pieces, you are looking at soil aggregates.

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Harnessing rhizosphere microbiomes for drought-resilient crop

2 days ago · Thus, understanding the mechanisms through which soil microbes affect plant drought tolerance and recovery, and their relevance and applicability under realistic field conditions, offers much potential for making crop production systems more resilient to drought.

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1. Soils and Plant Nutrients | NC State Extension Publications

This Soils and Plant Nutrients Chapter from the Extension Gardener Handbook examines the physical and chemical properties of soil as well as the important role organic matter plays. The chapter discusses how to submit a soil sample for testing and how to read the report to apply necessary fertilizers.

Litter decomposition: concepts, methods and future perspectives (Chapter 5)

2020/4/7 · Gogo, Sébastien Francez, André-Jean Laggoun-Défarge, Fatima Gouélibo, Nicolas Delarue, Frédéric and Lottier, Nathalie 2014. Simultaneous Estimation of Actual Litter Enzymatic Catalysis and Respiration Rates with a Simple Model of C Dynamics in Sphagnum-Dominated Peatlands. Ecosystems, Vol. …

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Cat litter granules: will they hurt the soil/plants if put on

May 22, 2007 · The nitrogen and ammonia in cat urine will kill your plants in no time flat. As for the clay litter, it depends on the kind of soil you have. If you have sandy soil that drains very quickly, clay litter would obviously increase the, duh, clay content and improve your soil. If your soil is already heavy in clay, you'll just make it worse.

The Effect of Leaf Litter Cover on Surface Runoff and Soil Erosion

The role of leaf litter in hydrological processes and soil erosion of forest ecosystems is poorly understood. A field experiment was conducted under simulated rainfall in runoff plots with a slope of 10%. Two common types of litter in North China (from Quercus variabilis, representing broadleaf litter, and Pinus tabulaeformis, representing needle leaf litter), four amounts of litter, and five ...

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