Coastal wetland

Estuary sediments contain toxic heavy metals which can pollute coastal wetlands. Ba Che river estuary is a coastal wetland with an area of 2,844 ha, which is affected by wastes in Ba Che river water and aquacultures. In this study, the accumulation of heavy metals in the Ba Che river estuary was assessed based on the enrichment factor (EF), the geo-accumulation index (Igeo), and the ecological risk index (RI).

9p dianmotminh02 03-05-2024 6 1   Download

Ebook "The wildlife techniques manual - Vol 2: Management" includes content: Human dimensions of wildlife management, communications and outreach, adaptive management in wildlife conservation, managing forests for wildlife, managing rangelands for wildlife, managing inland wetlands for wildlife, managing coastal wetlands for wildlife, managing farmlands for wildlife, managing urban environments for wildlife,assessing and managing wildland recreational disturbance,... and other contents.

428p muasambanhan03 02-01-2024 6 2   Download

The article is aimed to describe the causal relationship between endogenous and exogenous geological processes with terrain, geomorphology and terrestrial ecoregions and coastal wetlands in relation to sea level change and tectonic movement.

9p vipagani 24-10-2022 7 2   Download

Mangrove forests are intertidal wetlands and found along tropical, subtropical, and warm-temperate coastlines. They have vital functions in preventing coastal erosion, mitigating effects of wave actions, and protecting coastal habitats. However, mangrove forests are more likely to be vulnerable as typhoons frequently hit and under driving human pressures.

12p vikoenigsegg 26-09-2022 7 4   Download

(BQ) Environmental Management in Practice presents three comprehensive volumes containing the most upto-date research and practical applications in the field. Ebook Environmental management in practice (Volume 3): Part 1 presents the following content: Coastal environments; coastal environments: integrated coastal zone management; river and inland water environments; wetlands; upland and mountain environments; savannas; desert margins: the problem of desertification; tropical forest ecosystems; wilderness management.

209p runordie7 30-08-2022 11 3   Download

Lecture Introduction to civil and environmental engineering (CE 107): Chapter 6b after studying this section will help you understand: Wetlands of coastal and marine origin are less important in Bangladesh. The haors, baors, beels and jheels are of fluvial origin and are commonly identified as freshwater wetlands. These freshwater wetlands occupy four landscape units - floodplains, freshwater marshes, lakes and swamp forests.

6p huangminghao_1902 27-02-2022 18 1   Download

In parallel with these results, the diagrams of Gibbs et al. supported the same seawater intrusion phenomena. Brackish karst springs first roseand then fell below sea level with epirogenic movements during the geological period, and therefore, karstification progressed. The samples were oversaturated with calcite, dolomite, and quartz, whereas they were undersaturated with gypsum and halite. The Al, Cu, and Zn values of some of the water samples exceeded the tolerance limit of aquatic life standards.

21p tanmocphong 29-01-2022 10 1   Download

The results showed the particular monetary values of 11 WES obtained from 10 wetland ecosystems and total WES value in the study area. The outcome can become the scientific basis to choose the suitable solutions for sustainable use of natural resources in the relationship between preservation and exploitation of wetlands in the future.

11p meyerowitz 25-12-2021 9 0   Download

Our study sets forth the outcomes of an interdisciplinary project conducted in order to fill the information gap on the management of a wetland ecosystem, in the case of a protected area on the south-eastern coast of Turkey. The hypothesis of the study is that the pattern of species composition reflects soil salinity level and some species can act as relevant indicators. The study aimed to discover a relationship between soil salinity and vegetation composition and establish some indicators useful for monitoring.

16p tudichquannguyet 29-11-2021 19 1   Download

Apocynum venetum L. is an important medicinal plant that is mainly distributed in the coastal areas and northwest of China. In addition to its high medical and economic value, its adaptation to saline-alkali and coastal saline lands makes A. venetum an ideal candidate for use in vegetation restoration.

15p vijichea2711 28-05-2021 10 1   Download

In this context, the present study was conducted to estimate the recreational value of the Kuttanad wetlands using individual travel cost method approach.

10p cothumenhmong9 18-01-2021 9 2   Download

The Monterey Bay Region benefits from science-based adaptation planning that places value on a healthy social-ecological ecosystem. We co-developed a methodological engagement framework to support an iterative place-based process among natural resource managers, the planning community, and the community of technical experts (e.g., economists, scientists, lawyers). In collaboration with local decision makers, we are evaluating the effects of adaptation strategies on ecosystem services provided by natural dune and wetland systems to inform decision making at the local government level.

6p mentospurefresh 29-11-2019 18 0   Download

The contents of this chapter include all of the following: Land use; wilderness, parks, and wildlife refuges; forests; rangeland and agricultural lands; wetlands and coastal areas; conservation of land resources.

36p shiwo_ding5 22-05-2019 13 1   Download

The distribution of fifteen polycyclic aromatic hydrocarbons (PAHs) indicated from USEPA as priority pollutants was studied in surface sediments (0 - 20 cm) of coastal wetland area of Can Gio district, Hochiminh City. PAHs were recovered from the sediments by solvent extraction and then analyzed by means of high performance liquid chromatography system. Total concentrations of the ∑PAHs in the range 5 – 38 ng/g dw were detected, and a distinct spatial trend was observed.

7p cumeo3000 01-08-2018 23 0   Download

Nitrogen contamination may come from a variety of sources: municipal sewage, animal manure, atmospheric deposition, biological N fixation, soil organic N, and/or nitrogen fertilizers. The consequences of contamination in a specific water body will depend upon the amount of contamination from all sources and characteristics of the receiving waters. Shallow rivers, wetlands, lakes, and reservoirs, have some capacity to remove nitrogen by microbial denitrification.

12p tainhacmienphi 19-02-2013 46 4   Download

Traditional engineered solutions often work against nature, particularly when they aim to constrain regular ecological cycles, such as annual river flooding and coastal erosion, and could further threaten ecosystem services if creation of dams, sea walls, and flood canals leads to habitat loss.

98p yeurauxanh88 01-10-2012 80 4   Download

In response to climate change, many countries are likely to invest in even more infrastructure for coastal defenses and flood control to reduce the vulnerability of human settlements to climate change. Increased water shortages will increase demand for new irrigation facilities and new reservoirs. Similarly, natural ecosystems can reduce vulnerability to natural hazards and extreme climatic events and complement, or substitute for, more expensive infrastructure investments to protect coastal and riverine settlements.

103p yeurauxanh88 01-10-2012 66 3   Download

Many important sport fish species strongly connected with the coastal wetlands include northern pike, muskellunge, largemouth bass, smallmouth bass, bluegill, yellow perch, white crappie, black crappie, channel catfish, black bullhead, brown bullhead, carp and bowfin (Raphael and Jaworski 1979; Jude and Pappas 1992). Structural diversity of the wetlands are represented by vegetation, submergent, floating and emergency important to many fish.

36p lulanphuong 28-03-2012 65 11   Download

Coastal wetlands throughout the Great Lakes has been recognized as important areas for fish production. These wetlands contribute large numbers of prey species, sport and commercial Large lake fisheries (Herdendorf et al 1986; Herdendorf 1987). Estimates vary on the number of species use the coastal wetlands in the Great Lakes. Whillans (1987) estimated that over 90% about 200 species of fish in the Great Lakes are dependent on wetlands for at least some part of their life cycle while Jude and Pappas (1992) found 47 species closely related to coastal wetlands....

63p lulanphuong 28-03-2012 66 7   Download

Coast this complex with numerous sheltered embayments, islands and estuaries have increased the formation the extensive wetlands especially in Saginaw Bay, St Marys River, and east of Georgian Bay. This complexity, coupled with diverse geological clock, making the most of wetlands diversity on the Great Lakes (Smith et al. 1991). The coastal wetlands are used as spawning, nursery areas and nurtured by a series of arbitrary force and wetland dependent.

75p lulanphuong 28-03-2012 78 6   Download