Aspects of the present disclosure involve hydraulic systems and methods for altering a flow of a body of water, such as a river, channel, and/or other flowing or uncontained bodies of water. In one aspect, a hydraulic system provides a velocity barrier for the impedance of aquatic organism migration. More particularly, the velocity barrier may be adapted based on the swimming capabilities of one or more aquatic organisms to impede migration. The aquatic organism may be one or more species of fish, such as species sea lamprey (Petromyzon marinus). The example implementations shown and described herein reference the restriction of the sea lamprey. However, it will be appreciated that other aquatic organisms could be restricted by the presently disclosed technology, for example, with different hydraulic targets depending on swimming capabilities.

The present disclosure describes a DNA fragment mixture for the prevention or for the treatment of at least one pathogenic, parasitic or infesting species of plants or of the environment, wherein the DNA mixture consists of random fragments of total DNA of at least one pathogenic, parasitic, or infesting species, and/or at least one phylogenetically similar species, against which the prevention and treatment are directed. Further, the disclosure describes a process and related system for improvement of the production/growth of microorganisms at high yield in bioreactors or photobioreactors, or of plants in different culture systems, where the nucleic acids of the organisms produced/grown by such a process are removed from the culture medium and the culture medium, deprived of these nucleic acid, is used again in the process.

This invention provides low-dose, low-concentration formulations of phytotoxic trace inorganic compounds for use in methods and systems for selectively and effectively controlling invasive plants.

It is new in the art to mechanically expose Phragmites to continual rain water internal intrusion and retention. Man-made water reservoirs made from the Phragmites living stalk is a new mechanical removal method. Rapid destruction in one season of entire clones occurs with simply one or two cuttings and is effective in any season. Maintaining minimum ⅓ of stalk height leaves the ground shaded and water-logged continually inhibiting seedling growth and causing Phragmites destruction without soil disturbance. Phragmites coding does not have a repair system to overcome mid-section stalk cutting collecting water. It fails to send out new rhizomes as it sends new suckers from the top ligule instead. A second sucker is easily removed below the ligule and the stalk fails to support it's life and dies. Increased insect and fungal activity from the man-made water-logging Phragmites stalk reservoir further reduces Phragmites function and suppresses seedling growth.

A vegetative health mapping system which creates two- or three-dimensional maps and associates moisture content, soil density, ambient light, surface temperature, and/or additional indications of vegetative health with the map. Moisture content is inferred using radar return signals of near-field and/or far-field radar. By tuning various parameters of the one or more radar (e.g. frequency, focus, power), additional data may be associated with the map from subterranean features (such as rocks, soil density, sprinklers, etc.). Additional sensors (camera(s), lidar, IMU, GPS, etc.) may be fused with radar returns to generate maps having associated moisture content, surface temperature, ambient light levels, additional indications of vegetative health (as may be determined by machine learned algorithms), etc. Such vegetative health maps may be provided to a user who, in turn, may indicate additional areas for the vegetative health device to scan or otherwise used to recommend and/or perform treatments.

This invention provides low-dose, low-concentration formulations of phytotoxic trace inorganic compounds for use in methods and systems for selectively and effectively controlling invasive plants.

Devices, such as mobile sensors and static sensors, monitor field health. A comparison to a baseline may facilitate detection of a field health issue. When an issue with field health is determined, a remedy may be deployed. Deploying a remedy may use an unmanned vehicle, such as an unmanned aerial vehicle, or a liquid distribution manifold.

A method for validation of site-specific water quality criteria of a river basin includes steps of: analyzing the biota distribution characteristics of a river basin; eliminating non-resident related species from the toxicity database of target pollutants; supplementing toxicity values of site-specific resident sensitive species and endemic species; establishing a resident toxicity database for the river basin; comparing the degrees of fitting of species sensitivity distribution (SSD) models and identifying the optimal SSD model; and validating the water quality criterion value to complete the derivation and validation of the site-specific water quality criteria of the river basin. The method can improve the nativeness of the site-specific water quality criteria of the river basin, be used for the formulation of the site-specific water environment quality standards of the river basin, and provide support for the water quality management of the river basin.

Systems and methods for remediating hull wastewater are described herein. The systems include: a separation unit for separating a hull wastewater feed stream into a separated feed stream and a first solid waste stream, a filtration unit coupled to the separation unit for filtering the separated feed stream into a filtered stream and a second solids waste stream; a membrane filtration unit coupled to the filtration unit for membrane filtering the filtered stream into a membrane filtered stream and a third solids waste stream; an inactivation unit coupled to the membrane filtration unit for inactivating the membrane filtered stream into a final product stream; and a waste removal unit coupled to the separation unit and the filtration unit for receiving and dewatering the first solids waste stream and the second solids waste stream into a recycle stream and a waste product stream.

This invention provides low-dose, low-concentration formulations of phytotoxic trace inorganic compounds for use in methods and systems for selectively and effectively controlling invasive plants.