3.复垦林地的技术标准（1）项目区内原有林木原则上全部保留，不能砍伐后

3. Technical standards for reclamation of forest land <br>(1) In principle, all the original trees in the project area are retained and cannot be cut down and planted. <br>(2) The muck must be buried in situ. <br>(3) Surface soil cleaning: cleaning surface weeds and small shrubs in the project area. <br>(4) Planting trees: dig pits for planting, the row spacing is 2.2m, and the pit standard is 0.4*0.4, 0.4m. <br>(5) Shukeng backfilling soil: The backfilling earth must be soil to achieve the function of retaining water and fertilizer. <br>(6) Seedling requirements: mainly trees, with seedling height above 0.8-1.0m. <br>(7) Seedling fertilization: artificial fertilization. <br>(8) Survival rate of seedlings: The survival rate of seedlings must reach over 96%. During the one-year warranty period, the dead seedlings must be replanted by the constructor. <br>4. Technical standards for new irrigation and drainage canals and bucket canals <br>(1) The size of the formwork must meet the design requirements to ensure that the specifications and thickness of the channels meet the standards. <br>(2) The channel must be constructed by pulling wires from digging ditches, installing soil molds, and installing cast-in-place molds to ensure that the ditch is straight and beautiful. <br>(3) Cast-in-place concrete channels, the thickness of ditch, canal wall and bottom plate is 0.1m, and the standard of concrete is C20; <br>(4) The construction process requires beautiful linear shape, smooth surface and no honeycomb concave surface; <br>(5) Selection of materials and Concrete ratio: Do ​​not use sand and gravel containing soil and stone powder, and the concrete ratio must meet the requirements of the design ratio. <br>(6) During the concrete pouring process, the vibrating rod needs to be hit in place, and the floating slurry should be cleaned up before the template is oiled to ensure that there is no honeycomb concave surface on the canal surface; <br>(7) Pay attention to control the time of demoulding and water in time to ensure that the channel does not burn out; <br>( 8) Ensure that there is a 5-meter-long expansion joint spacing; <br>(9) The pressure shoulder should be flat, the inner wall should be smooth, no honeycomb pitted surface, and the mold joints should be flat and straight; <br>(10) Keep water blocking 10 cm below the irrigation port Nest; <br>(1l) Grasp the elevation of the channel to ensure normal irrigation;<br>(L2) Pay attention to the flat bottom of the channel, so as not to store water. <br>5. Technical standards for field production roads <br>(1) Newly built production roads: the pavement is 2m wide, covers an area of ​​2.6m, and the pavement is paved with a 0.1m thick mudstone surface layer. The roadbed uses 0.4m plain soil to compact the roadbed, and the surface soil stripping thickness is 0.2 m, of which 0.4m thick is transported soil, and the road surface is 0.3m above the field surface without road shoulders. <br>(2) Renovate the production road: pave the road smoothly and compactly, and pave the 0.1m thick mudstone surface to compact it. <br>(3) Newly built field road: the pavement is 3.0m wide, the area is 3.8m wide, and the two sides are mortared and masonry, and the shoulder is 0.3-0.5m above the field surface. The roadbed must be laid out and rolled to form a straight line to maintain a beautiful straight line. The two sides of the road are required to be a mortared stone shoulder, which is required to ensure a straight line, beautiful appearance, and joints. The top of the road must be covered with mortar. 0.10m. <br>(4) Renovate field roads: level the original roads and pave the road with gravel with a thickness of 0.15m. <br>6. Other ancillary engineering standards The <br>ancillary facilities such as crossing culvert pipes, gates, reservoirs, water drops, wrong lanes, U-turns, bevels, etc., shall be constructed according to on-site construction needs and design standards.

Technical standards for the reclamation of forest land.<br>(1) The original trees in the project area are all retained in principle and cannot be cut down and planted.<br>(2) Slag requires local burial treatment.<br>(3) Topsoil clean-up: clean up surface weeds, small shrubs, etc. in the project area.<br>(4) Planting trees: digging pits, row spacing of 2.2m, pit standard 0.4 x 0.4, 0.4m.<br>(5) Tree pit backfilling soil: backfilling soil must be soil, to achieve the role of water conservation, fertilizer.<br>(6) Seedling requirements: to the main trees, seedlings high 0.8-1.0m or more.<br>(7) Seedling fertilizer: artificial fertilization.<br>(8) Seedling survival rate: the survival rate of seedlings must reach more than 96%, in a one-year warranty period, the dead seedlings must be replanted by the construction party.<br>4. Technical standards for the new repair of irrigation and drainage canals and ditches.<br>(1) Template size must meet the requirements of the design, to ensure that the specifications of the channel, thickness of the standard.<br>(2) channels from the trench, installation of soil mold, loading the pouring mold must be pulled line construction, to ensure that the ditch straight-line beautiful.<br>(3) now poured concrete channels, ditches, canal walls and floor thickness are 0.1m, the standard of concrete C20;<br>(4) The construction process requires to achieve wire-shaped beauty, surface flat, no honeycomb concave surface;<br>(5) The selection of materials and matching ratio: do not use sand and gravel containing soil, stone powder, matching ratio must meet the requirements of the design ratio.<br>(6) In the process of pouring the vibration rod to be hit in place, the template oil before the floating slurry clean, to ensure that the canal surface no honeycomb concave;<br>7 pay attention to control the release time, timely watering, to ensure that the channel does not burn;<br>(8) To ensure that there is a 5 meters long telescopic seam spacing;<br>(9) the shoulder to be flat, the inner wall to be smooth, no honeycomb hemp surface, mold joints to be flat, straight;<br>(10) 10 cm below the irrigation mouth to leave a water nest;<br>(1l) grasp the channel elevation, to ensure normal irrigation;<br>(l2) Pay attention to the bottom of the channel flat, do not store water.<br>5. Technical standards for road production in the field.<br>(1) New repair of production road: road width 2m, covers an area of 2.6m, the pavement laying 0.1m thick mud stone surface layer, the roadbed using 0.4m of the solid soil foundation, topsoil peeling thickness of 0.2m, of which 0.4m thick for the outer soil, the road surface is 0.3m above the field, no road shoulder.<br>(2) Renovation of the production road: the road surface paved solid, laying 0.1m thick mud stone surface layer compact.<br>(3) New field road: 3.0m wide road surface, covers an area of 3.8m wide, bilateral masonry, shoulder higher than the field 0.3-0.5m. Roadbed must be line, crush molding, to maintain a straight line of beautiful, the bilateral requirements for the masonry shoulder, the requirements to ensure a straight line, beautiful, hook, top to sand slurry surface, the road surface by paved gravel, gravel thickness of 0.10m.<br>(4) Renovation of field roads: the original road leveling, the road paved gravel, thickness of 0.15m.<br>6. Other ancillary engineering standards.<br>Cross-sectional culverts, gates, cisterns, falling water, wrong lanes, turning points, ramps and other ancillary facilities, according to the site construction needs and design standards for construction.

3. Technical standard of reclaimed forest land<br>(1) In principle, all the original trees in the project area shall be reserved and can not be planted after felling.<br>(2) The waste soil should be buried on site.<br>(3) Surface soil cleaning: remove the surface weeds and small shrubs in the project area.<br>(4) Tree planting: pit planting, row spacing is 2.2M, pit standard is 0.4 * 0.4, 0.4m.<br>(5) Soil backfill of tree pit: the backfill earthwork must be soil to achieve the function of water and fertilizer conservation.<br>(6) Seedling requirements: mainly arbor, seedling height above 0.8-1.0m.<br>(7) Seedling fertilization: artificial fertilization.<br>(8) Survival rate of seedlings: the survival rate of seedlings must reach more than 96%. Within the one-year warranty period, the dead seedlings must be replanted by the construction party.<br>4. Technical standards for new irrigation and drainage canal and bucket canal<br>(1) The size of the formwork must meet the design requirements to ensure the specification and thickness of the channel.<br>(2) In order to ensure the straightness and beauty of the ditch, it is necessary to draw a line to construct the channel from digging ditch, installing soil mold and installing cast-in-place mold.<br>(3) For cast-in-place concrete channel, the thickness of ditch, channel wall and bottom plate is 0.1M, and the standard of concrete is C20;<br>(4) The construction technology requires that the line is beautiful, the surface is smooth, and there is no honeycomb concave surface;<br>(5) Material selection and concrete ratio: sand and gravel containing soil and stone powder shall not be used, and the concrete proportion shall meet the requirements of design proportion.<br>(6) In the process of concrete pouring, the vibrating rod should be placed in place, and the floating slurry should be cleaned before the formwork oiling to ensure that there is no honeycomb concave surface on the canal surface;<br>(7) Pay attention to control the time of formwork removal and water timely to ensure that the channel is not burnt out;<br>(8) Ensure a 5 m long expansion joint spacing;<br>(9) The shoulder should be flat, the inner wall should be smooth, without honeycomb and pitting, and the mold joint should be flat and straight;<br>(10) The water blocking nest should be reserved 10 cm below the irrigation opening;<br>(1) grasp the elevation of canal to ensure normal irrigation;<br>(L2) pay attention to the smoothness of the bottom of the channel to avoid water storage.<br>5. Technical standard of field production road<br>(1) New production road: the pavement is 2m wide and covers an area of 2.6m. The pavement is paved with 0.1M thick mud stone surface layer. The subgrade is compacted with 0.4m plain soil. The stripping thickness of topsoil is 0.2m, of which 0.4m thick is transported soil. The pavement is 0.3m higher than the field surface without shoulder.<br>(2) Repair production road: pave and tamp the pavement, lay 0.1M thick mud stone surface layer and compact.<br>(3) Newly built field road: the road surface is 3.0m wide and covers an area of 3.8m wide. The road shoulder is 0.3-0.5m higher than the field surface. The subgrade must be set out, rolled and shaped to maintain a straight line and beautiful appearance; the two sides of the road are required to be mortar masonry shoulder, which is required to ensure straight line, beautiful appearance and pointing. The top of the road should be finished with mortar, and the pavement should be paved with gravel, with a thickness of 0.10m.<br>(4) Field Road Renovation: the original road shall be leveled and the pavement shall be paved with gravel with a thickness of 0.15m.<br>6. Standards for other ancillary works<br>The auxiliary facilities such as crossing culvert pipe, gate, reservoir, water drop, passing lane, turning point, groove and other auxiliary facilities shall be constructed according to the site construction requirements and design standards.<br>