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The landscape is designed based on the existing condition of geography , plant, water, soil and habitat of this site , which could preserve the original texture , landform and ecological environment , and reduce the design expenditures.The construction of Beijing Nanhaizi Park takes advantage of the construction demolition waste , the rubble and the cement walls shattered and sorted according to various specifications , to heap mountains , construct the park roadbed and pave the garden roads with the mixture of the soil , the domestic garbage , the grass and wood , aiming to increase soil fertility.
For instance, in North America, Low Impact Development(LID) stressed at the beginning of the development is to consider how to keep the whole chain of natural circulation not be destroyed and interrupted. [3] Through small, easy to build and maintain low cost facilities realize a variety of functions such as non-point source pollution control, flood peak reduction and maintain landscape ecology and soil and water conservation.
For example, WuZhiQiao Charitable Foundation is a registered charity in Hong Kong, aiming to provide financial and technical support to university students, professionals and community volunteers to use of sustainable building concepts working together and build bridges.
Under the professional management, the annual maintenance cost is 20% of the original set price.
It changes a typical vegetable garden into a beautiful place for people to have breks by its beautiful modeling and distinctive images.[5] (Fig. 4) (Fig.4 Types of Economic Crop Roof Garden in Gary Comer Youth Center) Low Emissions - Reduce The Impact On Natural Environment By Landscape Landscape Materials Pollution Reduction "Construction safety production management regulations" states that construction units should comply with the environmental protection laws and regulations to prevent or reduce dust, waste gas, waste water, solid waste, noise, vibration and construction lighting and environmental hazards and pollution [6]. 

So professional monitoring warning or management should be carried out timely and effectively.
The tailing edge is shaped like chair and the leading edge has sunk into water of the reservoir.
One group set up on a small landslide (water level 175m below).
[journal] Water science and technology of Heilongjiang(2010)
[journal] Soil and water conservation bulletin(1992).

So professional monitoring warning or management should be carried out timely and effectively.
The tailing edge is shaped like chair and the leading edge has sunk into water of the reservoir.
SC spring water monitoring points; QF mass prediction and disaster prevention monitoring points
One group set up on a small landslide (water level 175m below).
(journal)Soil and water conservation bulletin(1992).

Defects on some of them and unfortunately even accidents of some cases of bridge objects, mainly recently published by media, related to corrosion of prestressed reinforcement awoke interest of both professional and wide non-professional public related to its durability.
Recent breakdowns of some bridge buildings related to reinforcement corrosion steered attention of mainly wider professional public towards points of issue of corrosion of prestressing reinforcement and at the same its anti-corrosion protection.
Defects and Breakdowns Important impulse that attracted attention of not only professional public to the issue of corrosion of steel prestressing strands appeared in relation to an unfortunate collapse of the footbridge in Prague – Troja, connecting Vltava river banks of Císařský island and Troja district.
Penetrating water in some cases also evidently migrated in the core or on the surface of wires of PSC strands, pouring down by gravitation in the direction of longitudinal slope of the bridge deck.
Humidity condition in ducts and slots of the footbridge in Troja was for sure affected by floods during which the footbridge twice fully disappeared under the water.

A river is a water container.
The functions of water, drainage, and ecological conservation are under serious consideration because of increasing global water issues.
Rivers and water resources are characterized by social and public financing.
River ecological assessment methods are summarized into five categories. 1.Water quality indicators methods: The first category is the Water Quality Indicator method, which includes River Pollution Index, Water Quality Index, and Water Hydrology Evaluation Indicators.
Questionnaires and experts consultation effectively establishes the objective professional indicator system.

The role of purifier is filter, distill the deterioration transformer oil and a series of operations, remove impurities in transformer oil (water is mainly), making the index reach close to new oil standards.
(5) Connections of the into-out oil tube must be carried out under the command of professionals
The test results of the transformer oil is only 19.5kV which does not meet the national standard, and also water content of 89mg/kg.According to user needs, 7th December, 2013 to 8th December,2013, “oil purifier in line” is used to the transformer purifying for 15 hours.
After purifying, the results of testing the transformer oil shows that breakdown voltage reach 46kV and water content of 41mg/kg that complying with national standards.
China Water Power Press,2004 [5] Yin Kening．Transformer Design Principles [M].

In general, PM mode is the mode that the owners hire the professional project manage company or engineering consulting company with rich experience in project management to provide professional management of the whole process or some phases.
( Institution of Civil Engineers) Mainly used for road, bridge, water conservancy and other large civil engineering projects and constructions.
( American Institute of Architects) The contract text and conditions are widely used in American or other countries and it is famous in the world. 1.A series is used in standard contract documents between the owner and the contractor. 2.B series is used in standard contract documents between the owners and the architects. 3.C series is used in standard contract documents between the architect and the professional consultants. 4.D series is used in the file in the architect industry. 5.F series is used for financial management report. 6.G series is used in the file of the architect enterprise or the project management.
The contract system takes The Engineering and Construction Standard Contract as the core, and the system includes many contracts such as Construction Supervision Contract, Construction Project Survey and Design Contracts, Highway Engineering Construction Contract, Water Conservancy and Hydropower Engineering Construction Contract.
[13] David Haviland,Hon.AIA,The Architec’s Handbook of Professional Practice(Twelth Edition).New York:AIA Press.1996

Study on Flexural Strength and Flexural Modulus of Elasticity of Cement Stabilized Aggregate Peng Zhang1, a, Xiaohang Wei2, b 1College of Water Conservancy and Environment Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, China 2China Road & Bridge Corporation, Beijing, 100011, China azhangpeng8002@163.com, bweixiaohang2002@163.com Keywords: Cement stabilized aggregate, Flexural strength, Flexural modulus of elasticity, Curing period, Cement content.
Introduction Compared with other semi-rigid base layer materials, cement stabilized aggregate has much more advantages, such as higher strength and rigidity, and more excellent wholeness and water stability.
The water to be mixed was local tap water.
Conf. of Chinese Logistics and Transportation Professionals – Logistics, China. (2008), p. 2479 [10] G.Z.

If the workers stay at the high temperature environment for a long time, they will be professional heatstroke.
Moreover, water pressure was directly read by the high-pressure meter, and water consumption was measured by high-pressure flow meter.
The water pressure could be changed by the adjustable valve, and water temperature was adjusted by putting ice into the nature water.
The air suction is quickly increased as the water pressure growth when the water pressure below 5 MPa,.
Under these conditions, the water temperature reduced from 19°C to 9.6°C, and the temperature of the water amplitude increased from 0.9°C to 3.0°C.

Corrugated board packing absorbs water vapor and water easily that led the compressive strength to drop intensity.
Disposing paperboard pulp would obtain water-proof and moistureproof character .
Paraffin wax applied in a molten form was commonly used to produce a water vapor barrier.
Institute of Packaging Professionals: Herndon, VA, (1993),p.173–189
Mechanical and water barrier properties of soy protein and clay mineral composite films.