Monitoring system for migration of elements of nitrogen, phosphorus and the like in hydrologic cycle process of farmland soil

Abstract

The invention discloses a monitoring system for the migration of elements of nitrogen, phosphorus and the like in the hydrologic cycle process of farmland soil. The monitoring system is provided with a water supplying system, a soil holding pool, a water head and water level control system, a soil solution collector, a bottom frame and a slope regulator, wherein a water inlet pool and a water outlet pool of the water head and water level control system are respectively arranged near two wide side walls of the soil holding pool and share the side walls together with the soil holding pool, holes are respectively formed in the shared side walls, water level / water head control holes are respectively formed in the outer side walls of the water inlet pool and the water outlet pool, baffle plates are respectively arranged on the outer side walls of the water inlet pool and the water outlet pool, a nozzle of the water supplying system is positioned above the soil holding pool, collecting tanks of the soil solution collector are embedded in soil in the soil holding tank, and head sections and tail sections of the two adjacent collecting tanks in each line are positioned in the same plane, the soil holding pool, the water inlet pool and the water outlet pool are integrally placed on the bottom frame, and the slope regulator is arranged under the bottom frame. According to the monitoring system, the elements of the nitrogen the phosphorus and the like in the vertical infiltration process of soil water in different soil layers can be monitored, and the elements of the nitrogen, the phosphorus and the like in a shallow groundwater flowing process can be monitored.

Description

technical field [0001] The invention belongs to the technical field of agricultural environment. It specifically relates to a monitoring system for the leaching and migration of soluble elements such as nitrogen and phosphorus in the process of infiltration with farmland soil moisture and migration of shallow groundwater. This system is especially suitable for monitoring shallow layers where lateral flow mainly occurs under rainfall or irrigation conditions. The migration of nitrogen, phosphorus and other elements in the process of groundwater flow can also monitor the leaching of nitrogen, phosphorus and other elements in farmland soil at different depths during the vertical infiltration of soil water. technical background [0002] The hydrological cycle of farmland soil mainly includes two parts. The first is the vertical infiltration process of soil moisture after rainfall, and the second is the continuous infiltration of water in the soil into the shallow groundwater, wh...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiency that the existing monitoring only monitors the migration of elements such as nitrogen and phosphorus in the vertical infiltration water of the soil, but cannot simultaneously monitor the migration of elements such as nitrogen and phosphorus in the shallow groundwater flow that mainly flows laterally, the invention provides a farmland soil A monitoring system for the migration of nitrogen, phosphorus and other elements during the hydrological cycle. This system can not only monitor the leaching rules of nitrogen, phosphorus and other elements in the process of vertical infiltration of different soil layers with soil moisture, but also monitor the shallow Migration law of nitrogen, phosphorus and other elements in the process of layer groundwater flow

Images