2014 Hainan Civil Service interview hot spots: Lawn heat

Lead: In recent years, China's urban greening and more attention to, but the problem are endless, hot lawn is one of them. In the context of this issue with the question of an analog one, for teacher preparation and student remarks purposes. (Major source) [link] Background Generally, people nowadays mention urban greening, will immediately think of that large city green, the public square or, residential areas or, street sides of the road or, everywhere a large a large lawn. A medium-sized cities less there are millions of square meters of lawn, the lawn can be a lot of winter is often the lack of green yellow, summer is the "'mediocre' inaction!" Baked in the sun, still hot temperature environment, especially people travel often can not find a people to avoid the sun and the cool look of the place. Say urban greening can not keep it, but a lot of urban green areas and a lot of green coverage rate is not low, then the crux of the problem child? In previous years, we are engaged in urban greening that only emphasizes "green , green ", the result is" There is no shade of green! "[simulation title] Candidates talk about the greening of cities around the lawn in the heat of view. [Refer to the answer] urban greening to improve the urban environment, to enhance the image of the city, good public health, this is a good thing, but in recent years the city green all over China in hot lawn is worth our reflection. In China, the city green "lawn hot" from the late 1980s continues today. Lawn with trees in some areas do not have the advantage of a one-time low cost investment than the trees, laying speed is unmatched by planting trees. But beware, the green American and European cities can use a large area of ??lawn, because they sparsely populated, large green area per capita, while many public favorite sport projects are carried out on the lawn. China's coastal cities because of its many new short history of urban construction in the early to green areas left a larger construction space, conditional build large savanna landscape. In inland areas, many of the city's historic, restrictions by the historical conditions, and not to leave large areas of green reasonable space. Only local conditions in many locations, see the seam insert green. Therefore inland urban greening priority is how to use the limited green space, to maximize the ecological effect. Careful analysis, I think there is some question as follows hot lawn: First, the high cost. While less than one-time laying lawn planted trees cost, but high maintenance costs. Especially in some northern cities, drought, cold winter, the growth is very unfavorable for lawn maintenance cost is prohibitive, so the financial burden of spending huge miserable. Second, the waste water. Unlike lawn trees that do not survive after watering, to have been very dry in many cities in China, a lot of lawn to further increase the water pressure. China is one of the world's 13 water-poor countries serious, serious water shortage, the city has more than 100 seats, "serve" lawn "water" is obviously powerless. Third, there is no shade of green. Although some lawn ornamental value, but "there is no shade of green" is a fatal weakness. Some urban per capita green area is not small, however, mostly green lawn constituted under the scorching sun, shade trees, pedestrians can not find, can not be cool. Fourth, poor ecological benefits. According to estimates of experts, trees and lawns charge ratio of 1:10, and ecological benefits than they produced was 30: 1, the same area of ??trees on the lawn oxygen capacity is a hundred times, especially in improving the urban microclimate trees, clean air, reduce heat and evaporation and reduce noise pollution, reduce heat island effect, etc., are 20 times stronger than the lawn. Fifth person grass contradiction. Many of our urban population is very dense, many people on the need for "foothold", and most are not trampled grass, many parks and green spaces, in addition to the huge lawn and the lake, but for people to set foot in the place limited The public can only be on the lawn. "elusive." Thus, there is a certain contradiction exists between human activity and grassland protection. I think, in the face of urban greening lawn heat, we should change our thinking, starting from the following address: First, many cities in China is still using "green coverage," "green rate" as the main indicators of the degree evaluation of urban greening . Now, we should change the use of "green biomass", "green looking ratio" and to reflect the existing urban green space construction land use new indicators to guide urban greening more scientific and reasonable. Second, the trees can bring good ecological effects and also the basic conditions required, we have garden-style, garden-city environment, should be the main urban greening afforestation as to be positioned to create a style. So our urban greening, should be combined with the actual situation around, as much as planting trees, plants with a variety of plant communities dominated model should also introduce more variety of ground cover plants develop, step by step, try to replace the lawn high administrative costs, Science symbiosis, stratified planting, in order to maximize the ecological benefits, good policy is feasible. Hope "lawn hot" and "fever" to deepen people's understanding of conservation-oriented urban greening, urban greening in the future, according to local conditions, tree herb is a good neighbor. Make trees and grass science symbiotic, to the city more green and shade. Hainan Hai major source of interview training from years of combat experience, profound theoretical knowledge of Professor Zheng Yuanjiang Shuodao coach, full combat simulation, the whole truth simulation exam reproduction, training time over 230 hours; 15 people one on one training in small classes, limited training, scroll style classes; and training has a long history, in 2007 began to organize the civil service interview training; trainees through effective rate 87.3%, 79.5% rate of overturned the original eighteen class answer mode, unique design anti-pattern training methods; enhance answer highlights, Training highly answer, width and depth of capabilities; Hainan larger civil servants pro forma exchange platform.