An improved vegetated buffer water retention system. The current invention can be utilized for both smaller scaled (e.g., residential) purposes or larger scaled (e.g., agricultural, municipal, industrial) purposes. In certain embodiments, the system generally includes a perforated drainage pipe and an overflow controller (e.g., T-shaped member, arched overflow valve apparatus) in open communication with each other. These components allow the system to control the soil matrix water table. With additional valves, pumps, and water reservoirs, the system can control both the soil matrix water table and stored water reuse. The systems can be used not only to enhance plant root uptake and microbial utilization of nutrients and pollutants in water, but also to capture and reuse water inflows, thereby aiding in water conservation and preventing soil erosion.

An improved vegetated buffer water retention system. The current invention can be utilized for both smaller scaled (e.g., residential) purposes or larger scaled (e.g., agricultural, municipal, industrial) purposes. In certain embodiments, the system generally includes a perforated drainage pipe and an overflow controller (e.g., T-shaped member, arched overflow valve apparatus) in open communication with each other. These components allow the system to control the soil matrix water table. With additional valves, pumps, and water reservoirs, the system can control both the soil matrix water table and stored water reuse. The systems can be used not only to enhance plant root uptake and microbial utilization of nutrients and pollutants in water, but also to capture and reuse water inflows, thereby aiding in water conservation and preventing soil erosion.

System and means soil stabilization and moisture control for building foundations including methods and systems for stabilization moisture in a site for building foundation by applying soil moisture stabilization material in various forms, a preferred stabilization material being a mixture of aluninosilicate Pozzolan mineral and granular material such as sand.

A method of underground watering utilizes a pouch-like container product made by joining a first sheet having SAP particles adhered to a first surface with a second sheet to form a container partially filled with such particles. The application of pressure, for example by passing the product through a roll nip, facilitates joining of the sheets and causes the particles to break through at least the one of the sheets to create an opening whereby free volume is created to permit the particles to expand when in contact with a liquid. The resultant product is used to collect, store, and dispense water-containing liquids into the soil for watering of agricultural plants, trees, and the like. A composite underground watering element is also included in an embodiment of the invention. The inventive products may also be used as a pad, including a propagation pad, to collect, store, and dispense water-containing-liquids into plant vessels to provide watering of plants. Also included are underground watering of athletic fields and golf course greens, erosion control products and plant root balls having a watering collar.

A modular assembly is provided for detaining or retaining a liquid beneath a ground surface. The assembly featuring a plurality of substantially identical precast unitary concrete modules with each module having a deck portion with outer edges and a plurality of spaced apart legs extending from the deck portion. At least two of the legs of a module are spaced inwardly from the nearest outer edge of the deck portion of the same module so that a portions of the deck overhangs each of said legs. The legs and deck portions define flow paths within each module that are in fluid communication with each other with the flow paths being both outside the legs and between the legs. Each module in the assembly is further positioned with its deck adjacent to the deck of another module.

A retrofitted flood irrigation valve apparatus includes a housing; a motor coupled to the housing, the motor to generate mechanical energy; a first wheel operatively coupled to the motor, wherein the first wheel is positioned within the housing and wherein the first wheel is to translate the mechanical energy generated by the motor to rotational motion; a second wheel positioned within the housing, wherein the second wheel is to be coupled to a stim of an existing flood irrigation valve; and a coupling between the first wheel and the second wheel, the coupling to transmit the rotational motion from the first wheel to the second wheel, wherein the rotational motion at the second wheel causes actuation of the existing flood irrigation valve.

Leaching chamber units have an elongated body with a length extending between a closed end and an open end. The closed end of the leaching chamber unit may define one or more fluid flow openings. The elongated body of the leaching chamber unit has an arcuate, arched or convex cross-sectional shape and includes strengthening ribs extending transverse to the length of the elongated body. The strengthening ribs are arranged in a regular, repeating pattern along the length of the elongated body. The repeating pattern and complementary shape of the strengthening ribs allow the disclosed leaching chamber units to be nested for storage and transport. The disclosed leaching chamber units can be mated with each other at a range of longitudinal positions to form leaching chamber assemblies of a desired interior volume and leaching capacity.

This application discloses a comprehensive treatment method for salinized soil in semi-arid region, comprises: stripping and collecting the topsoil; spreading sandy soil and/or loess soil as a imported soil layer; spreading an anti-seepage layer, a salt barrier layer and a membrane layer successively on the imported soil layer; mixing clay into the topsoil to obtain mixed soil; blending saline-alkali land conditioner with the mixed soil to obtain planted soil; spreading the planted soil on the membrane layer to obtain a planting layer. The method combines physical, hydraulic, chemical and biological remediation methods to comprehensively manage saline-alkali soil in semi-arid areas. It consumes less water resources, has a shorter treatment cycle, shows quick results, is conducive to plant growth, and can effectively inhibit the return of salt.

This application discloses a comprehensive treatment method for salinized soil in semi-arid region, comprises: stripping and collecting the topsoil; spreading sandy soil and/or loess soil as a imported soil layer; spreading an anti-seepage layer, a salt barrier layer and a membrane layer successively on the imported soil layer; mixing clay into the topsoil to obtain mixed soil; blending saline-alkali land conditioner with the mixed soil to obtain planted soil; spreading the planted soil on the membrane layer to obtain a planting layer. The method combines physical, hydraulic, chemical and biological remediation methods to comprehensively manage saline-alkali soil in semi-arid areas. It consumes less water resources, has a shorter treatment cycle, shows quick results, is conducive to plant growth, and can effectively inhibit the return of salt.