BREE 533 Lecture Notes - Lecture 10: Siltation, Secchi Disk, The Molecules
23 Jan 2018
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Ca(cid:374)ada co(cid:374)tai(cid:374)s o(cid:374)e fourth of the (cid:449)orld"s (cid:449)etla(cid:374)ds. A(cid:374)d natio(cid:374)al (cid:449)etla(cid:374)ds (cid:449)orki(cid:374)g group has divided them into seven regions: arctic, subarctic, boreal, prairie, temperate, oceanic and mountain. Wetlands cover 14% land area of canada, whereas most of them are converted into alternative uses for agriculture and housing. Only 25% of wetlands in manitoba are in existence. P + swi + gwi = et + swo + gwo + s. Residence or retention time (rt): it is defined as the average amount of time water is retained in the wetland. For a marine wetland, precipitation was 965 mm and et was 680 mm for the year. Annual surface flows into the marsh total 87300 m3, and surface outflow was 101700 m3 per year. Determine the change in storage for this 1. 3 ha wetland. P + swi + gwi = et + swo + s (cid:894)no gwo i(cid:374) this case(cid:895) Precipitation: p = 965 mm*1. 3 ha = 12545 m3.
