1 Afforestation points 1.1 Reasonable Site Preparation Soil preparation is an important part of afforestation. It is usually a land preparation in the rainy season in the previous year and afforestation in the following year. It can also be afforested in the rainy season or in the rainy season. Land preparation methods and specifications should be adapted to local conditions and adopt different methods of site preparation. Generally, the upper part of the hillside and the section above the 25-slope area are used for hole-like and fish scale pit preparations. Specifications: hole diameter is about 30 to 40cm, depth is 20 to 40cm; fish scale pit has a long diameter of 30 to 50cm, short diameter of 30 to 40cm, and depth of 20~ 40cm wide and 10-20cm high. In the middle of the hillside and 15 to 25 slopes, fish scale pits and leveling soil preparation are used. Specifications: The fish scale pit is the same as above, and the horizontal step width is 1 to 1.5 m. The length is suitable for leveling the field surface, and the depth is 30 to 80 cm. In the lower part of the hillside and below the 15th slope, a narrow terraced field preparation is used. Specification: width: 2-5m, length is determined according to the slope conditions, depth is 30-80cm, and a solid double-layered stone wall is reserved. 2～3m are reserved between two steps. Raw soil. Regardless of the type of land preparation, the planning and design must be done before the site preparation and construction should be carried out according to the design plan. 1.2 Appropriate tree selection and tree seedlings In the province's rainy season, afforestation trees are dominated by evergreen tree species and broad-leaved tree species with strong sprouting power, such as Platycladus orientalis, Pinus thunbergii, Pinus tabulaeformis, Pinus tabulaeformis, Zanthoxylum bungeanum, and so on. To a specific afforestation site, afforestation species should be selected according to the site. . Seedlings should be selected as seedlings with good growth, strong root systems, no pests, and no mechanical damage. It is best to use container seedlings to increase the survival rate of afforestation. Coniferous seedlings should be selected from 1 to 2 years old. 1.3 Grasp the right time for afforestation The timing of afforestation in the rainy season is very important. The best time for afforestation is to be set in the afternoon to reduce the sun exposure time. After overnight buffering, the seedlings' resistance and afforestation survival rate can be improved. 1.4 Container seedling afforestation Container nursery and afforestation should pay attention to three aspects: First, when raising the seedlings, the soil around the container bags should be excavated first, so as not to loosen the soil in the bags. Second, planting should pay attention to the depth of planting, soil depth than the container higher 2 ~ 3cm, should not be exposed to the nutrition bag. The third is to tear the bottom of the bag before planting. 2 Management Points 2.1 hole surface coverage After afforestation, promptly cover the surface of the cave with dry branches, smashed grass, etc., in order to facilitate the preservation of the forest. 2.2 Watering the whole hole : If there is no rain after afforestation, it is advisable to pour water once in 2 to 3 days after planting so as to keep young trees alive. 2.3 Weeding and weeding The tree-planting hole was not covered with holes. After the heavy rain, the soil was easy to harden, dry and breed weeds. It was necessary to loosen the soil in time to protect the weeds and remove the weeds.
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