Sentences with phrase «lands by the erosion»

But if we compare these gains with the permanent loss to those peoples of the services performed by the forests, the damage to the rivers and to the agricultural lands by the erosion of the mountainsides, the loss of fisheries, and so forth, one can hardly judge that the lot of the people has been improved.

Not exact matches

Roughly by the year 250 BCE., the clearing of forests and the over-cultivation of Mayan agricultural lands had caused a great deal of soil erosion (see Deevey, et al.).

Marshalling convincing scientific data, they tell us that the environmental degradation caused by massive pollution of air water and land, threatens the very life of earth — fast depletion of non renewal resources, indeed of species themselves, the thinning of the ozone layer that exposes all living creatures to the danger of radiation, the build up of gases creating the greenhouse effect, increasing erosion by the sea — all these are brought out through their research.

As part of the CSO panel we advocated for organic agriculture as a means of farming that increases the resilience of soils to both water stress and nutrient loss and which contributes to combating desertification by preventing soil erosion and land degradation.

The depths are generally too great to support a munificence of coral like the Caribbean shoals; the land is still being changed too much by erosion and flowing lava to encourage a fringing reef.

The Romanian Parliament, also dominated by USL, is currently debating the modification of the 2003 Mining Law and considering amendments which would facilitate important erosion of citizens» rights, particularly by allowing foreign companies to expropriate the lands and houses of Romanian citizens on behalf of the Romanian government.

Such erosion can result from any number of factors, including the simple inundation of the land by rising sea levels resulting from the melting of the polar ice caps.

The rocks had to be 50 million years old, as that is the age of the primates they study, and the land had to be sloped by at least 5 degrees, so erosion was likely to have exposed fossils.

The report adds that approximately 500,000 square kilometres of African land is already estimated to have been degraded by overexploitation of natural resources, erosion, salinization and pollution, resulting in significant loss of nature's contributions to people.

The map of soil loss by water erosion delineates areas of concern that will require special protection measures, such as financing more sustainable land management practices.

Despite their importance, corals face a range of grave risks today, from bleaching triggered by increasing seawater temperatures, to sediment loads caused by terrestrial erosion from land development, to predation by crown - of - thorns starfish.

This more detailed and accurate model could help scientists better predict the motion of dunes or manage coastal land threatened by erosion, says physicist Hans Jürgen Herrmann, also of ETH Zürich, who led the research team.

By Rina Saeed Khan KETI BUNDER, Pakistan (Thomson Reuters Foundation)- For fisherman Sammar Dablo, it was as if «the seawater stole our homes» when land erosion forced his village to relocate further inland on Pakistan's south coast.

This could be something like the erosion of areas of loess in South Limburg, a process that was started by the Romans, but that only in the 20th century led to extensive mudslides, making the land permanently unsuitable for agriculture.

Eventually, however, terrestrial red and green algae and the first lichens developed on land and the final big rise in oxygen may have been caused by the «greening of the continents from around 800 million years ago,» when these simple early lifeforms on land steadily spread and broke down rocks that sustained a higher rate of erosion and led to the release of more nutrients into the oceans that stimulated even more photosynthesis by more newly evolved algae as well as older cyanobacteria (Nick Lane, New Scientist, February 10, 2010).

Erosion by water and wind can wear down land and create landforms like valleys and canyons.

Here we show that the East Greenland Ice Sheet existed over the past 7.5 million years, as indicated by beryllium and aluminum isotopes (10Be and 26Al) in quartz sand removed by deep, ongoing glacial erosion on land and deposited offshore in the marine sedimentary record.

It's also not affected by some of the forces that have shaped the land above sea level, such as erosion.

Even more crustal minerals were formed by plate tectonics with the help of lubricating ocean water, atmospheric oxygen from the successful development of photosynthetic microbes, and land - based lichens (of algae and fungi) and mosses which were followed by deep - rooted plants that hastened the erosion and weathering of surface rocks with the help of biochemical action and the creation of soils as well as new clay minerals.

«Identifying the threads that connect these parasites from wild and domestic land animals to marine mammals helps us to see ways that those threads might be cut... by, for example, managing feral cat and opossum populations, reducing run - off from urban areas near the coast, monitoring water quality and controlling erosion to prevent parasites from entering the marine food chain.»

This break was probably was formed by erosion during the last low sea level stand (while sea level was much lower and the reef was exposed as dry land).

Five floor pieces show the erosion of land by water.

- the later directly by putting dust in the ocean (or erosion and river / wind transport there) or indirectly by taking up CO2 on land) but at least the carbonate dissolution could take the place of carbonate dissolution in the ocean (and be more rapid?)

It is also possible for cold climates to increase chemical weathering in some ways, by lowering sea level to expose more land to erosion (though I'd guess this can also increase oxydation of C in sediments) and by supplying more sediments via glacial erosion for chemical weathering (of course, those sediments must make it to warmer conditions to make the process effective — downhill and downstream, or perhaps via pulsed ice ages -LRB-?)-RRB-.

In a telephone interview from India, where she was about to visit some Himalayan glaciers, Dr. Koppes noted that the highest rates of erosion by rivers and glaciers occur in areas of tectonic uplift — where the land is still rising.

Life on land: Besides the reduction of greenhouse gases, the project assist environmental sustainability by slowing deforestation, which also prevents soil erosion, the destruction of natural habitats and the loss of biodiversity

Settled early by Europeans, this geographically rugged region was suffering from cropland productivity losses because soils were thin and the land was rocky, sloping, and vulnerable to erosion.

Deforestation and land degradation due to mining are exacerbating these climate - related disasters by increasing the likelihood of soil erosion and landslides.

These areas of open water influence: (1) the land by allowing more ocean waves and more coastal erosion, (2) Greenland outlet glaciers by exposing the glacier fronts to warmer ocean waters, and (3) the atmosphere by providing a source of heat and moisture during autumn.

Ruth Gates, director of the Hawaii Institute of Marine Biology, points to a reduction in food supplies, lack of coastal protection, and land erosion of detrimental consequences to coral bleaching as potential consequences, and says people impacted by these areas will have to move.

Polluted runoff from both rural and urban lands increases erosion and puts public health at risk by contaminating drinking water supplies.

Further, the United Nations Convention to Combat Desertification (UNCCD) defines land degradation as a reduction or loss in arid, semi-arid, and dry sub-humid areas of the biological or economic productivity and complexity of rain - fed cropland, irrigated cropland, or range, pasture, forest and woodlands resulting from land uses or from a process or combination of processes, including those arising from human activities and habitation patterns, such as: (i) soil erosion caused by wind and / or water; (ii) deterioration of the physical, chemical, and biological or economic properties of soil; and (iii) long - term loss of natural vegetation.

The United Nations Convention to Combat Desertification defines land degradation as a reduction or loss in arid, semi-arid, and dry sub-humid areas, of the biological or economic productivity and complexity of rain - fed cropland, irrigated cropland, or range, pasture, forest, and woodlands resulting from land uses or from a process or combination of processes, including processes arising from human activities and habitation patterns, such as (i) soil erosion caused by wind and / or water; (ii) deterioration of the physical, chemical and biological or economic properties of soil; and (iii) long - term loss of natural vegetation.

Efforts by Asian business and government to buy and control overseas farm land and water resources are different: it is the end game choice after overpopulation, water pollution, and soil erosion from poor land management have taken their toll.Export tariffs are not a sustainable solution, I'd agree.

A large share of the world's 852 million hungry people live on land with soils worn thin by erosion.

If these same limestones are uplifted on land by mountain building, erosion of those rocks also releases CO2 into the atmosphere.

[7][8] The vast majority of anthropogenic carbon dioxide emissions (i.e., emissions produced by human activities) come from combustion of fossil fuels, principally coal, oil, and natural gas, with comparatively modest additional contributions coming from deforestation, changes in land use, soil erosion, and agriculture.

A flood can also be caused by a collapse of land along a shore of a lake or body of water where the collapse was cause by erosion, waves or currents of water.

As defined by NFIP, it is a temporary or general condition of partial or complete inundation of two or more acres of normally dry land from: mudflow, overflow of inland or tidal waters, unusual or rapid accumulation or runoff of surface waters from any source, and a collapse or subsidence of land along the shore of a lake or other similar body of water as a result of erosion or undermining caused by waves or currents of water exceeding anticipated cyclical levels.

Similarly, the Prime Minister has given preliminary support to the Principles by endorsing home ownership on communal lands and «individual aspiration as a driving force for progress in all sections in the Australian community».50 Such a perspective is inconsistent with research focusing on social capital, which argues that the erosion of community and shared networks is undermining the progress of society.

that Justice J. Heneghan, who rendered the Federal Court decision, felt compelled to comment: «Considering the fact that the Greenbelt was conceived as a «buffer zone» against encroaching urban sprawl, the steps taken by the NCC to declare the land surplus and to obtain a rezoning of the land seem more consistent with accommodation of urban sprawl, rather than resistance to the erosion of green areas.