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Bởi vì các nhà máy vai trò quan trọng trong hệ sinh thái nước có sự quan tâm ngày càng tăng trong việc khôi phục quần thể thực vật thuỷ sản. Phục hồi nhà máy thủy sản có thể: (1) cải thiện môi trường sống của cá và động vật hoang dã (2) giảm xói mòn bờ biển và bất ổn phía dưới; (3) đệm chất khử tạp chất dinh dưỡng (4) bóng mát bờ biển (5) giảm tăng trưởng macrophyte phiền toái và tảo; (6) xử lý nước mưa và xử lý nước thải thải; (7) thay thế những. | 12 Plant Community Restoration 12.1 INTRODUCTION Because of the vital role plants play in the aquatic ecosystem there is a growing interest in restoring aquatic plant communities. Aquatic plant restoration may 1 improve fish and wildlife habitat 2 reduce shoreline erosion and bottom turbulence 3 buffer nutrient fluxes 4 shade shorelines 5 reduce nuisance macrophyte and algae growth 6 treat stormwater and wastewater effluent 7 replace exotic invaders with native species 8 improve aesthetics and 9 generally moderate environmental disturbance. Although there is some debate about the proper term s enhance restore rehabilitate develop restructure for these efforts Haslam 1996 Moss et al. 1996 Munrow 1999 the essence is to return aquatic plants to areas where they were previously found to develop areas where they should be found or to restructure present plant populations to provide the ecological assets of a healthy macrophyte community. For purposes of this discussion restoration is broadly and loosely defined. It can mean planting a single species where plants were previously extirpated. It can mean changing habitat conditions so revegetation occurs naturally. It can mean restoring diversity to a monotypic exotic plant community. It can mean doing nothing and letting nature take its course. In few if any cases is an aquatic plant community restored or rehabilitated in the strictest ecological definition of the terms Haslam 1996 Moss et al. 1996 Munrow 1999 Chapter 1 . Various techniques have been used to restore saline and fresh water marshes swamps seagrasses and fresh water plants in lakes and streams Kadlec and Wentz 1974 Johnston et al. 1983 Orth and Moore 1983 Marshall 1986 Storch et al. 1986 Moss et al. 1996 . The technology for aquatic plant community restoration is quickly developing but presently it is still as much of an art as it is a science. Much more is known about restoring wetlands which includes shoreline emergent plants than is known about restoring
