Sentence examples for phosphate runoff from inspiring English sources

So fertilisers are used to enrich the soil; but the phosphate runoff changes the composition of the vegetation from sawgrass (sedge) to cat-tails (reed mace).

Cat-tails do not provide suitable habitat or forage for wildlife native to the Everglades, so those species disappear.The sugar industry says that phosphate runoff has gone down, that water discharge is cleaner, and that they are kinder to the Everglades.

Mining has stripped and devastated about 80 percent of Nauru's land area, and has also affected the surrounding Exclusive Economic Zone; 40 per cent of marine life is estimated to have been killed by silt and phosphate runoff.

Nutrient content (nitrate and phosphate) of freshwater runoff were obtained from Ludwig et al. [ 2009].

A company based in Shepherd, Mont., has developed one that is about the size of a backyard: known as the BioHaven, it is designed to grow in drainage ditches and remove unwanted nitrogen and phosphates from field runoff.

But when those supplies run out, the process of recovering phosphate from agricultural waste, runoff, and sewage will be so expensive that many forms of agriculture that depend on cheap NPK fertilizers will suffer.

The objective of this study is to model the efficiency of vegetative filter strips for controlling surface runoff pollution from phosphate mining sand tailings.

The world will never run out of phosphorus or potassium; there's huge amounts out there in the oceans, and in fact that's where the runoff from our phosphate rock and potash-based fertilizers go.

The risk of high nitrogen (and some phosphate) losses through leaching and runoff can become serious unless there is good fertilizer management (Hydro, 1995; MAFF, 1999).

As most sewage treatment systems do not treat for nitrates and phosphates, most nations experience nutrient runoff from sewage.

Scientists say phosphorus -- a nutrient that is an essential component of living cells, as abundant in human waste and yard fertilizer as it is in detergent -- is one of the biggest threats to lakes and rivers whose waters take in a constant stream of phosphate-laden wastewater discharges, agricultural runoff and storm-water flows.