5results about How to "Reduce runoff" patented technology

The utility model discloses a PC stone-like water permeable brick, and relates to the technical field of water permeable bricks. The water permeable hole is formed in the brick body, and a filter frame assembly is mounted on the water permeable hole; the water guide groove is annularly formed in the surface of the brick body and communicated with the water permeable holes, and the depth of the water guide groove is gradually increased from the periphery to the middle; the first buckle assembly and the second buckle assembly are arranged on the left face, the right face, the front face and the back face of the brick body respectively and used for left-right splicing and front-back splicing of the adjacent brick bodies respectively. Through the arrangement of the water permeable holes and the water guide grooves which are matched with the peripheries of the water permeable holes and are gradually deepened from the periphery to the middle, water can be drained into underground water in a concentrated mode, and the filtering frame assemblies installed on the water permeable holes can effectively intercept large pollutants such as suspended particles and leaves in rainwater in the rainwater concentrated drainage process. Meanwhile, the filter frame assembly is simple in structure, convenient to mount with the brick body and convenient to clean.

This invention relates to the field of ecological agriculture technology, specifically disclosing a segmented erosion control method for sloping farmland based on plant hedges. The method includes the following steps: dividing the sloping farmland into upper, middle, and lower planting areas according to the terrain from high to low; and then correspondingly installing upper, middle, and lower planting hedges, and constructing a plant community in the lower area. The installation of upper planting hedges includes inoculating the rhizosphere soil with nematodes, or with a combination of nematodes and microbial agents. The microbial agents include at least one of Bacillus, Arthrobacter, Neurospora, or Penicillium. This invention integrates "source control, reservoir enhancement, and potential tapping," effectively intercepting surface runoff and increasing soil moisture infiltration by altering the slope's micro-topography. This is of great significance for improving soil fertility and water and fertilizer resource utilization in dryland farmland, reducing fertilizer use and nitrogen and phosphorus loss, balancing nutrient distribution on the slope, increasing nutrient utilization, and ensuring ecological security.

The invention provides an intelligent feedback type water-saving anti-erosion device and an implementation method thereof.The device is composed of a fish-scale pit, a flow guide channel, a temporary water storage pit, a rainwater collecting channel and a water storage pond and cooperates with drip irrigation equipment, a water pump, an intelligent controller and a solar energy supply system to work cooperatively. The fish-scale pit is of a layered structure and has the functions of vegetation habitat improvement and runoff regulation and control, and the flow guide channel and the temporary water storage pit are used for dispersing and collecting slope runoff and are matched with the water storage pool to achieve storage and recycling of rainwater. The rainfall, the soil humidity and the vegetation water demand are monitored in real time and dynamically regulated and controlled through the intelligent control system, water can be accurately supplemented through drip irrigation equipment by means of rainwater in the water storage pool in the dry season, and therefore the survival rate of drought-resistant vegetation is effectively increased. By means of the coupling design of engineering structure-ecological vegetation-intelligent control, dynamic balance of runoff interception, soil conservation, moisture regulation and control and vegetation bearing is achieved, and the system has the functions of water saving, erosion resistance and ecological restoration.

The invention discloses a terrace side wall lateral evaporation blocking control and yield increasing binary covering method and structure, and belongs to the technical field of dry farming water and soil conservation. In order to solve the problems of lateral migration of soil moisture and low edge yield caused by strong evaporation of terraced field ridges (side walls), the method adopts a'straw and sunscreen net 'binary coupling covering mode. The structure comprises a flat soil substrate layer, a diffusion resistance layer formed by crop straws, and a radiation decoupling and fixing layer formed by a black HDPE (High-Density Polyethylene) sunscreen net from inside to outside. According to the method, lateral evaporation is effectively inhibited and the transverse water potential gradient in the terrace is eliminated through multiple synergistic mechanisms such as radiation interception and cooling by the sunscreen net, water vapor diffusion resistance increase by the straw layer and near-surface wind speed weakening by the composite structure of the sunscreen net and the straw layer, so that soil moisture homogenization is realized, and the yield of crops at the edge of the terrace and the rainfall utilization efficiency of the system are remarkably improved. The method is low in cost, easy to construct, eco-friendly and suitable for dry farming terraced fields such as loess plateau.

A corn and chive composite planting method belongs to the technical field of planting methods. The problems that water and soil loss is serious, biodiversity is reduced, and the income increasing pressure of farmers is large in existing corn single cropping are solved. According to the method, after previous crops are harvested, soil is subjected to deep ploughing or deep scarification in autumn, and fertilization is conducted; in spring of the second year, when the soil is thawed by 15-30 cm, pulp jacking and ridging are carried out, an allium fistulosum planting belt is arranged every 6-8 rows of corn planting belts, and the ratio of the corn planting belts to the allium fistulosum planting belt is (3.6-4.8 m): (1.2-1.5 m); planting the chive as soon as possible after the soil is completely unfrozen, ditching or digging holes in a chive planting belt, planting a cluster of division seedlings of the chive in each hole, treading after planting, and thoroughly watering for fixing roots; corn sowing is conducted 7-10 days after field planting of the allium fistulosum and when the ground temperature is stabilized to be 8 DEG C; and harvesting after the corn and the chive are mature. The method has the advantages of efficient utilization of resources, complementation of ecological functions, superposition of economic benefits and exertion of regional advantages.