Search results
Results from the WOW.Com Content Network
The strength of the water cycle and its changes over time are of considerable interest, especially as the climate changes. [5] The hydrological cycle is a system whereby the evaporation of moisture in one place leads to precipitation (rain or snow) in another place. For example, evaporation always exceeds precipitation over the oceans.
Changes in marine ecosystem dynamics are influenced by socioeconomic activities (for example, fishing, pollution) and human-induced biophysical change (for example, temperature, ocean acidification) and can interact and severely impact marine ecosystem dynamics and the ecosystem services they generate to society. Understanding these direct—or ...
Indicators that make the human impact measurable and quantitatively assessable are: artificial water surface ratio, artificial water surface density ratio, disruption of longitudinal connectivity ratio, artificial river ratio, sinuosity of artificial cutoff, channelization ratio, artificial levee ratio, road along river ratio, artificial ...
Seawater consists of fresh water and salt, and the concentration of salt in seawater is called salinity. Salt does not evaporate, thus the precipitation and evaporation of freshwater influences salinity strongly. Changes in the water cycle are therefore strongly visible in surface salinity measurements, which has been known since the 1930s. [7 ...
The freshwater cycle in the Arctic Ocean is, therefore, significantly determined by freezing and melting of sea ice, for which characteristic rates are about 100 and 50 cm/yr, respectively. [25] If the ice drifts during the long intervals between the phase changes (frozen and liquid), the result is a net local distillation, where the sea ice ...
Freshwater ecosystems have undergone substantial transformations over time, which has impacted various characteristics of the ecosystems. [4] Original attempts to understand and monitor freshwater ecosystems were spurred on by threats to human health (for example cholera outbreaks due to sewage contamination). [5]
Water resource management is a subset of water cycle management that focuses on utilization of fresh water resources. Fresh water is a limited resource and it is unevenly distributed globally and even locally, and it is consumed by people, industry, agriculture and nature alike. Successful management of fresh water resources require extensive ...
Human activities such as agricultural practices and changes in land cover caused by deforestation caused by deforestation have modified the land around Lake Azuei. [13] Floods, droughts and the degradation of aquatic ecosystems are examples of the effects disruption of the water cycle. [14]