This microbial community is fed by organic compounds exuding from plant roots, which are consequently surrounded by dense bacterial populations, equivalent to towns. Other areas, where nutrients are scarce, are less populated and equivalent to rural areas or even deserts.
Root exudates include signalling compounds that attract beneficial microbes. High microbial diversity is reflected in enormous physiological diversity — meaning a range of size, shapes, features etc — and microbes provide a wide range of essential soil functions and services. They degrade dead animals and plants, and their own dead microbial relatives, cycling their chemical constituents and releasing plant nutrients. One microbial product, the compound geosmin, gives soil its typical odour 2.
Soil is a reservoir for commercially valuable organisms, notably antibiotic producers, but also, on the negative side, for plant pathogens. Some microbes can be costly: nitrifiers convert fertiliser ammonia to nitrate, which washes out of soil rather than supporting plant growth, leading to annual multimillion pound global losses. Soil microorganisms also produce 60 gigatonnes of carbon dioxide 1 and large amounts of other greenhouse gases nitrous oxide and methane, thereby contributing significantly to global warming.
In natural ecosystems, the dynamic biological processes within soil sustain its structure and its ability to support agriculture and forestry, but these processes cannot be taken for granted and our activities can seriously threaten this balance. Intensive agricultural management, to increase food production, can disrupt soil structure, leading to erosion and desertification, and global warming may increase decomposition of the store of soil carbon. For example, Liberation , an EU-funded research project of nine universities and FAO, aims to link farmland biodiversity to ecosystem services for effective ecofunctional intensification.
Biodiversity is linked to soil health, which, is in turn, linked to food quality and quantity.
Preserving and boosting biodiversity is imperative to enhancing soil health thus ensuring a productive food system, improved rural livelihoods and a healthy environment. Fact sheet: Soils support our planet's biodiversity and they host a quarter of the total.
What is Living Soil?
A healthy soil is a living soil. Our soils support our planet's biodiversity and they host a quarter of the total Soil is one of nature's most complex ecosystems and one of the most diverse habitats on earth: it contains a myriad of different organisms, which interact and contribute to the global cycles that make all life possible.
- A healthy soil is a living soil;
- Living soils - Earthworm.
- The Sanctuary of Bethel and the Configuration of Israelite Identity?
- SOIL BIOLOGY.
What is biodiversity? The composition of 8 felted works on wooden panels is striated, echoing the layers of soil in this living skin of the earth.
The living soil: tread carefully | Royal Society of Biology blog
It offers those viewing it or working beside the mural several great powers of organically grown produce. The warming golden yellow is released from humble onion skins during an old natural dye process, and welcomes and comforts you.
The indigo supplies us the wisdom of transformation and the magical walnut dye, carrying its own mordant, infuses depth and solidity together with the ancient Dutch heritage pigments the madder root and the woad, all of them brought out fully thanks to the tacit knowledge of the ancient dyeing recipes.
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