2022 High-standard farmland construction Major Measures Standard:

I. Water Conservancy Measures

(1) The irrigation system is perfect, the water used for irrigation is guaranteed, and the quality of irrigation water meets the standard, the irrigation system is reasonable, advanced irrigation methods.

(2) The guaranteed irrigation rate in humid and semi-humid areas: no less than 75% in dry-crop areas and no less than 85% in rice areas; the guaranteed irrigation rate in arid and semi-arid areas: no less than 50% in dry-crop areas and no less than 75% in rice areas; and generally no less than 70% in other areas.

(3) irrigation water utilization coefficient: large irrigation areas should not be less than 0.50; medium irrigation areas should not be less than 0.60; small irrigation areas should not be less than 0.70; well irrigation areas should not be less than 0.80; sprinkler irrigation areas, micro-sprinkler irrigation areas should not be less than 0.85; drip irrigation areas should not be less than 0.90.

(4) the new construction, de-silvered and upgraded small reservoirs, dams and Diversion head and other projects, in line with national and water conservancy industry technical specifications of the design standards and technical requirements; well irrigation projects to achieve rational use of groundwater resources, the balance of extraction and replenishment; wells and pumping stations, hydraulic buildings, electromechanical equipment, transmission and transformation of power facilities complete, integrated device efficiency to meet the relevant norms and standards.

(5) water transmission, distribution canal system (pipeline), bridges, culverts, gates and other buildings and field irrigation facilities complete, performance and technical indicators to meet the normative standards.

(6) Promote a variety of applicable water conservation and dry farming techniques. Conditional areas, should be actively adopted under the membrane drip irrigation, sprinkler irrigation and other advanced and efficient water-saving technology; irrigation conditions are poor in the dry farming area, should be taken to agronomy, engineering and other dry farming water-saving measures to improve the utilization rate of natural precipitation.

2. Drainage engineering

(1) The design standard for flood control shall be in accordance with the relevant regulations.

(2) drainage design standards shall comply with the relevant provisions of the design rainstorm return period of not less than 10 years. Design rainstorm duration and discharge time should be achieved: 1 ~ 3 days of rainstorms in dry areas 1 ~ 3 days excluded; 1 ~ 3 days of rainstorms in rice cultivation areas 3 ~ 5 days to the flood-resistant water depth.

(3) sound drainage system, drainage outlets, drainage system section and slope design reasonable, bridges, culverts, gates and other buildings supporting performance and technical indicators to meet the relevant specifications, the depth and spacing of the last fixed drainage ditch, in line with the local mechanized farming operations, crops on the groundwater level requirements.

(4) there are stained dry farming areas, in the design of rainstorms formed after the removal of surface water, should be in the crops within the time of stain resistance to the water table down to the depth of stain resistance; rice area in the sunshine field period within three days of the water table down to the depth of stain resistance.

(5) Transformation of saline and alkaline land to establish a perfect drainage and irrigation system, before the return of salt (alkali) season to reduce the water table to the crop growth below the critical depth of ?

3. Project depreciation and completion rate

Irrrigation, drainage and other engineering facilities have a service life of not less than 15 years. Field irrigation, drainage works and ancillary buildings supporting the integrity rate is greater than 95%.

Two, agricultural measures

Plain areas with forested roads or larger ditches as the basis for the formation of grid field, land leveling, concentrated and continuous, in order to adapt to agricultural mechanization and field management requirements. Hills, mountainous areas below 15 degrees of sloping arable land, in accordance with the requirements conducive to soil and water conservation, built and other high level terraces (land), the ground is leveled, and constitutes a counter-slope; the thickness of the soil living soil layer is generally not less than 25-30cm, the width of the field surface is generally to reach more than 3m, the field (land) ridge is stable and firm (the ridge in the southern region to be used for stone lining or construction of biological terracing canals), the construction of good drainage ditches, flood relief ditches, to meet the flood control standards to prevent soil erosion.?

2. Soil improvement

The soil tillage layer reaches more than 20cm, and the organic matter content of the soil tillage layer is increased by more than 0.1 percentage point.?

3. Breeding and Promotion of Good Breeds

With better breeding capacity of good breeds, and basic conditions for the coverage rate of good breeds to reach the level of 100%.?

4. Agricultural mechanization

Plain areas of the main operating links with the basic mechanization, hilly and mountainous areas of the level of agricultural mechanization on the basis of the original level of the basic conditions for a greater increase.

5. Field road construction

The construction of field roads is divided into two levels of trunk roads and branch roads, with a reasonable layout, straight and smooth. Trunk roads should be connected with the township, village roads, simple hardening when necessary, to ensure that rainy and sunny days open, trunk roads in the northeast to meet the passage of large-scale agricultural machinery, other areas to meet the passage of medium-sized agricultural machinery; feeder roads should be supported by bridges, culverts and agricultural machinery in the field (ground) facilities, to facilitate the entry and exit of agricultural machinery field operations and transportation of agricultural products. Field road construction highlights the principle of land conservation, construction standards are reasonable and practical. The service life of field road facilities is not less than 15 years, and the completion rate is more than 95%.

Three forestry measures

Strengthen the construction of farmland protection forest network according to local conditions and meet the standards set by the local forestry department. Main roads, ditches, rivers on both sides, should be the right time, the right place, the right tree for afforestation, the length of the length of suitable afforestation more than 90%. When afforestation should be reserved for agricultural machinery in and out of the field operation channel. The survival rate of afforestation in the same year shall reach over 95%, and the preservation rate after three years shall reach over 90%. Plain area protection forest grid area and grid field area consistent, protection forest network control area accounted for the proportion of the area of farmland suitable for forest network, the northern region to reach more than 85%, the southern region in principle to reach more than 75%.

Four, scientific and technological measures

During the construction of the project, the promotion of more than 2 advanced and applicable technology, focusing on good seeds, good law and other advanced and applicable production technology; strengthen the project area beneficiary farmers advanced and applicable technology training more than 2 times; appropriate support for the county and township agro-technology service system, focusing on the support of the technical extension service Functions of farmers' professional cooperative economic organizations.

Key Medium-sized Irrigation District Water Conservation and Reconstruction Standards

Comprehensive Standards

Through the key medium-sized irrigation districts irrigation and drainage backbone engineering facilities for water-saving renovation and renewal of matching, for the construction of high-standard farmland to provide the backbone of the irrigation and drainage engineering conditions. The scope of the irrigation area is clear, the design of the irrigation area is generally not less than 50,000 mu, not more than 300,000 mu; irrigation planning and design is reasonable, in line with the overall planning of regional water resources utilization and water-saving irrigation development plan; irrigation design guarantee rate in line with the needs of the construction of high-standard farmland; irrigation engineering facilities quality standards, operation and maintenance norms; irrigation management system and operation mechanism is perfect, the water users to participate in the initial formation of irrigation management mode.

Major engineering standards ?

1. Water source and headworks

(1) Irrigation water source is guaranteed. Irrigation water quality meets the water quality standards for farmland irrigation. Water source and head of the canal project (including pumping station) is generally intact, safe and reliable operation.

(2) well irrigation projects to achieve rational utilization of groundwater resources, the balance of extraction and replenishment.

2. Irrigation and drainage canal system

(1) dry and branch canals (ditches) to ensure that the design capacity of water transfer, slope stability, smooth flow of water.

(2) dry and branched channel lining seepage control technical indicators to meet the specification requirements, durable, cold areas with good frost resistance. Aqueducts, culverts and other reasonably designed, technical indicators to meet the specification requirements. The absolute value of water utilization coefficient of the canal system is increased by more than 0.1. Water consumption per unit area in the project area is saved by more than 15%.

(3) Drainage system is sound, the drainage way out is smooth, the drainage design standard is not less than one in 3-5 years, the main building flood control design standard is not less than one in 10-20 years.?

3. Drainage (ditch) system buildings

(1) agricultural bridges, culverts, sluice gates, ferries, inverted siphons, tunnels, and other canal buildings are reasonably distributed to meet the irrigation and drainage system, water level, flow, sediment handling, operational requirements, and to adapt to the needs of the masses of people's production and life.

(2) The design and construction of canal (ditch) system buildings are in accordance with the provisions of the current relevant standards.

4. Measurement of water facilities and equipment

Irrrigation canals are equipped with the necessary water intake, diversion, etc., can meet the irrigation water scheduling and measurement of water supply needs.

5. Project management and maintenance facilities

Project management and maintenance facilities are reasonably laid out to meet the needs of project management and maintenance.

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