Beef + Lamb NZ EiC J M Chrystal Agricultural Science 5 Feb 2021 [pdf, 3.8 MB]
...wetlands can be a sink or source of P. Particularly if the input is sediment-rich (e.g. from cropland or largely from surface runoff). As a wetland becomes choked with sediment its ability to retain P decreases. (b) Constructed wetlands can be designed to remove P from waterways by decreasing flow rates and increasing contact with vegetation thus encouraging sedimentation. 73. In addition, management practices to reduce the production of surface runoff such as improved irrig...