Re: Nanshan greening tree species is not simply a question of what trees to build.
ecological forest structure or a single "comprehensive ecological report"
How can Nanshan achieve ecological protection? The reporter interviewed Wang Renqing, the professor of the College of life sciences of Shandong University, the director of doctoral student, and director of the Institute of ecology and biodiversity.
he said that Nanshan land is barren and water is scarce, which determines the difficulty of afforestation and ecological protection. In the end, how to make a forest and what kind of forest to make? The landscape forest is really good, and the investment is not very good, but in the whole Nanshan, it is limited to the local area and the small scope after all. The economic forest is much larger than the former, but the soil can not be water, and the extensive management is difficult to get much benefit. The ecological forest is the foundation of everything, and it is very important.
in his view, since the ecological forest is to play the functions of water conservation, wind and sand fixation, and regulating climate, from the point of view of planting trees, three principles should be followed. First of all, we should try to choose local species suitable for the local environment as far as possible, so as to suit local conditions. Secondly, the structure of tree species should also be multi-layered, and trees, shrubs, herbs and so on should have a three-dimensional appearance. At present, there are more trees in Nanshan, such as Platycladus orientalis, Pinus tabulaeformis, Robinia pseudoacacia and so on. Shrubs can be added to Lespedeza bicolor, Spiraea and Vitex negundo. Herbs may be considered as Herba helli and Herba Herba. "Now the Nanshan is green from above, but its structure is very simple." He said, he said, can not fully meet the functions that the ecological forest needs to achieve, "for example, save water, it is a ladder, trees, shrubs, herbs, one layer of storage, if only one layer, how much water can be saved?" again, to increase technology and management. Three points to build seven branches is especially important for mountain areas. Many pine trees are not long for many years. They have become "small old trees", that is, the growth and decline of the trees after afforestation, showing a small trunk, many branches, a cluster of sprouts, the flat crown of the tree, the root development of the root, the shoot, even the whole plant death.
Professor Wang believes that afforestation should pay attention to long-term nature. Since Nanshan is mainly based on ecological protection, it is necessary to investigate the current situation comprehensively and produce a comprehensive ecological report including animals and plants, microorganisms, etc. On this basis, we plan again which areas must be protected and what can be done for protective development.
Nanshan "Nanshan bottom map" is working out
Liu Jiming, deputy director of the planning and Development Bureau of the Nanshan administrative committee, which is urgently required to build the ecological compensation mechanism, said Liu Jiming, to strengthen the ecological protection and repair efforts and to build the green mountains and green mountains, we should adhere to the "two steps".
one is to increase the protection of non-commercial forests, expand the area of public welfare forests, strengthen the pace of afforestation with mixed needles and broad-leaved trees, and improve the ecological environment of Nanshan. Taking the Liu Bu forest farm as an example, on the one hand, we carry out the forest land edge land return to forest, on the other hand, enrich the structure level of the forest community, follow the law of natural dynamic succession, and improve the quality of the woodland and the output capacity of the ecological products. Forestry work should adhere to two principles, one is scientific afforestation, according to different altitude, humidity, soil pH, scientific selection of tree species. The two is the diversification of native tree species and the investigation of plant resources in the southern mountain area.
two is to optimize the structural layout of the economic forest. At present, the proportion of economic forest is too large, which is still extensive management and low efficiency. In the future, the fruit and fruit industry should adhere to the supply side reform, optimize the layout of the structure, increase the variety and improve the quality of products. Take the road of fine orchard, four seasons picking and special agricultural products, reduce pesticide and chemical fertilizer consumption, reduce environmental pollution, and promote biological control. We should develop undergrowth economy, develop Chinese herbal medicine planting, and promote the development of green tourism such as tourism, leisure, ecological tourism and health care. "
" Ji'nan hired the top planning and design experts from foreign countries, with the four red lines of the mountain, river water system, the key spring water leakage zone and the direct supply area of the spring water as the bottom map, and compiled the development plan which embodies the characteristics of the southern mountain area, with the protection as the core and the high level. In accordance with the principle of "optimizing layout, natural restoration, accurate promotion and orderly development", the plan will take into account the state of Nanshan resources and integrate the planning of land, construction, tourism, environmental protection, water conservancy, forestry and industry to form a plan and a blueprint. At present, the "multi - regulation" plan is being compiled.
Nanshan is not only the Nanshan people, but also the southern mountain area of the whole city. It is a fountain, green lung and ecological barrier shared by all. Therefore, Nanshan should actively strive for all levels of ecological compensation funds, and explore the mechanism of ecological compensation as soon as possible.