Question: What number of landscapes set course for the graphic treatment of landscape?
About the article "Rembrandt", section "Etchings".

Candidate passages:
Landscape planners are concerned with the 'health' of the landscape, just as doctors are concerned with bodily health.
This analogy can be taken further.
Medical doctors advise both on the health of individuals and on matters of public health.
When individuals take actions injurious to their own health this is regarded as a private matter.
But if they take actions injurious to public health, these actions are properly regulated by law.
The collective landscape is a public good which should be protected and enhanced by legislation and public administration.
If, for example, mineral extraction has a damaging impact on the landscape, this is a proper field for intervention.
Negative impacts on the landscape could include visual impacts, ecological impacts, hydrological impacts and recreational impacts.
As well as protecting existing public goods, societies are responsible for the creation of new public goods.
This can be done by positive landscape planning.
There are, for example, many former mineral workings (e.g.
the Norfolk Broads which have become important public goods.
Medical doctors are trained in anatomy, physiology, biochemistry etc.
before becoming practitioners.
Landscape doctors are trained in geomorphology, hydrology, ecology etc.
before becoming practitioners in design and planning.
When qualified, they can specialize in areas of landscape planning: Landscape of roads - The landscape treatment of roads is concerned with the planning and design of roads and highways with regard to their environmental impact on the surrounding landscape.
Sylvia Crowe wrote a pioneering book on the design of roads with regard to their impact on the landscape and Ian McHarg proposed an overlay system for highway route selection in his book on "Design with nature".
Landscape of forestry - The landscape treatment of forests is concerned with the non-timber objectives which can be obtained by conserving and developing forests: scenic quality, water quality, recreation, wildlife conservation and other environmental goods.
This work is done by foresters who also hold qualifications in landscape architecture and also by landscape architects and landscape planners with a specialization in forestry.
The United States Forest Service, the UK Forestry Commission and other forest agencies are also employers of landscape architects.
They have mitigated criticism of plantation forestry, monoculture, and clear-cutting.
Landscape of energy - The generation of energy has become a major land use with consequent environmental impacts upon the landscape.
Landscape planning for energy is concerned with designs and plans to mitigate the impact of power generation upon the landscape.
This includes landscape planning for: * power stations * power transmission lines * hydroelectric power * tidal power * solar power * wind power Landscape of urbanization - Most of the world's cities are expanding into agricultural land.
Landscape planning for urbanization is concerned with the conservation and development of landscape resources as urbanization takes place.
Ian McHarg's approach to this problem was to prepare a series of overlay maps showing the different types of quality in the land around settlements: agricultural value, property value, hydrological value, scenic value, recreational value, ecological value etc.
The maps of value were then overlaid to produce a composite map which looked like an X-Ray photograph - with the dark areas having the most value and the white areas the least value.
His belief was that the 'white land' should be urbanized in preference to the 'black land'.
The overlay mapping system which McHarg proposed is now carried out using a Geographic Information System.
Other landscape planners have proposed greenways and green belts as a means of urban growth management.
Landscape Urbanism is a theory of urbanism arguing that landscape, rather than architecture, is more capable of organizing the city and enhancing the urban experience.
Landscape of recreation - Recreation has become a large-scale landuse.
In the coastal regions of many countries (e.g.
Spain and Denmark) it is the dominant land use and has had an enormous impact on the natural landscape.
The landscape of recreation is concerned with mitigating the environmental impact of recreation on the landscape.
Landscape architects and landscape planners work on the landscape of recreation to: * reclaim landscapes which have been damaged by recreational use * carry out environmental impact assessments of recreational development proposals * prepare landscape plans and designs for recreation projects Landscape of mineral extraction - Mineral extraction has a long history of damaging the landscape.
Harm has been caused to scenic quality, water quality, habitat quality and other environmental goods.
The landscape treatment of mineral workings is concerned with: * the reclamation of abandoned mines and quarries * the planning and design of future mineral workings to minimize their harmful environmental impact and achieve as many positive impacts on the environment as possible.
Landscape of agriculture - The primary purpose of agriculture is food production but concern for other objectives (e.g.
wildlife, conservation, biodiversity, recreation and scenery) have a long history and are of increasing importance in wealthy and urbanized countries.
The European Union Set-Aside Policy was designed as a means of giving money to farmers to produce non-food environmental goods from farmland.
Landscape planners are involved with the preparation of agricultural landscape plans for the achievement of non-food objectives from agricultural land.
Landscape of rivers - The construction of new buildings and new roads accelerates the discharge of surface water runoff and raises flood peaks in the lower reachers of river catchments.
River banks therefore have to be raised and flood channels have to be constructed.
The adoption of sustainable urban drainage systems facilitates the reclamation of rivers.
When water is detained, infiltrated and transpired near to the where it falls, flood peaks are lowered and rivers can be reclaimed.
The high concrete walls in which they were confined can be replaced by vegetated embankments.
Water quality is improved and wildlife returns to the river.
Projects to achieve these objectives are described as River Reclamation or River Restoration.
Landscape of archaeology - The landscape of archaeology is concerned with the landscape treatment of archaeological sites.
This involves analysis, discussion, the formulation of policies and the preparation of landscape designs relating a number of issues.
In Britain the former Ministry of Public Works and Buildings (MPBW) (now English Heritage, Cadw, Historic Scotland and Northern Ireland Environment and Heritage Service) had a policy of treating archaeological sites like highly manicured gardens.
The grass was maintained almost to the quality of a bowling green.
The standard of care was admirable but there was little or no regard to the former landscape character of the archaeological site.
The development of the discipline of landscape archaeology has awakened interest in this question because the wider landscape is seen, correctly, as having archaeological value.
Most historic societies earned their livelihood from working the land.
Their buildings were an important accessory to the use of the land.
In countries where the looting of archaeological sites is a problem, there is a tendency for them to be surrounded with chain links or other security fencing.
This detracts from the relationship between the site and its landscape setting.
In other countries, archaeological sites have become important visitor attractions and sources of revenue.
This has led to the building of tourist facilities (visitor centres, hotels etc.)
which can easily have a detrimental impact on the archaeological site and its landscape setting.
In each case, the aim is to take a specialist land use and make recommendations for what can be done to enhance its implact on the stock of environmental goods. 
He worked as landscape architect to Harlow New Town and the new town of Crawley.
He helped found the landscape architecture school in Cheltenham (now University of Gloucestershire), starting a course in 1961.
In 1966 he wrote a report on landscape for hospitals; it remained for decades the only work of its kind.
He was President of the Institute of Landscape Architects (now the Landscape Institute) from 1969 to 1971, and he was landscape architect for Robinson College, Cambridge.
In the mid-1970s, when the Garden History Society was concerned to protect historic landscapes, he suggested the setting-up of a Historic Landscapes Council analogous to the Historic Buildings Council; but the idea was not implemented. 
If the assumption of thermodynamic equilibrium is made, then there is no time-dependence in the rare event flux and a thermodynamic rather than statistical approach to the problem may be more appropriate.
These methods are generally thought of separately to rare event methods, but may address the same problems.
In these strategies, a free energy landscape (or an energy landscape, for small systems) is prepared.
For a small system this landscape may be mapped entirely, while for a system with a larger number of degrees of freedom a projection onto some set of progress coordinates will still be required.
Having mapped the landscape, and making certain assumptions, Transition state theory can then be used yield a description of the probabilities of paths within it.
An example method for mapping landscapes is Replica exchange simulation, which has the advantage when applied to rare event problems that piecewise correct trajectory fragments are generated in the course of the method, allowing some direct analysis of the dynamic behaviour even without generating the full landscape. 
Fyodor Mikhaylovich Matveyev (, 1758 — 1826) was a Russian classicist landscape painter, most recognizable for his Italian landscapes.
He was one of the first Russian landscape painters.
Matveyev was a son of a soldier of the Izmaylovsky Regiment.
He was admitted to the Imperial Academy of Arts, where he graduated from in 1778 with a Grand Gold medal.
One of his professors was Semyon Shchedrin.
Matveyev specialized from the very beginning as a landscape painter and became the first landscape artist graduated with a gold medal.
He was subsequently awarded a fellowship to travel to Europe, as was common at the time for talented graduates of the Academy.
In 1779, Matveyev travelled to Italy and eventually settled there.
He never returned to Russia and died in Italy in 1826.
Matveyev travelled back in forth in Italy and surrounding countries, painting landscapes.
Initlally, he had commissions from Russian nobles residing in Italy.
Eventually, the commissions thinned out, and Matveyev wrote letters to the Imperial Academy of Arts in 1789 and 1795, asking to subsidize his return to Russia.
Apparently, he did not receive any reply.
In 1806, he sent his painting "View around Naples" to the Academy and was awarded the title of the academician.
He created oil paintings as well as a number of graphic works.
Most of the paintings are made according to the strict rules of classicism, meaning the image is similar to the theater scene, with buildings or trees at the sides.
There are always people present in the landscape, to indicate the scale.
Landscapes by Matveyev never represent original landscapes with phographic presision.
In contrast, his drawings are much more skewed towards Romanticism, and may actually be first Russian Romantic landscapes. 
In evolutionary biology, fitness landscapes or adaptive landscapes (types of Evolutionary landscapes) are used to visualize the relationship between genotypes and reproductive success.
It is assumed that every genotype has a well-defined replication rate (often referred to as fitness).
This fitness is the "height" of the landscape.
Genotypes which are very similar are said to be "close" to each other, while those that are very different are "far" from each other.
The set of all possible genotypes, their degree of similarity, and their related fitness values is then called a fitness landscape.
The idea of a fitness landscape is a metaphor to help explain flawed forms in evolution, including exploits and glitches in animals like their reactions to supernormal stimuli.
The idea of studying evolution by visualizing the distribution of fitness values as a kind of landscape was first introduced by Sewall Wright in 1932.
In evolutionary optimization problems, fitness landscapes are evaluations of a fitness function for all candidate solutions (see below).