45 results about "Soil scientist" patented technology

The invention discloses a soil leaching liquor in-situ measurement method, which belongs to the research field of environmental science, soil science and plant nutrition. The soil leaching liquor in-situ measurement method of the invention includes the following steps: a soil profile in the vertical direction is obtained and a horizontal cave is dug based on the target depth of the soil profile; a horizontal leaching plate is arranged in the cave to collect the leaching liquor, and the leaching liquor in the leaching plate can automatically flow into a sample bottle through an outlet pipe; soil of the soil layer with a corresponding depth is used for filling the cave; according to the steps, a vertical waterproof wall body is built along the vertical soil profile to ensure that the outletpipe can pass through the wall body; meanwhile, the soil is backfilled layer by layer and then compacted layer by layer, and moreover, in order to recover the raw condition of the backfilled soil as possible, the backfilled soil is irrigated for a plurality of times. The soil leaching liquor in-situ measurement method of the invention is especially suitable for monitoring the influence caused by the soil leaching liquor of such soil solute as nitrogen, phosphorus and pesticide, etc. to the groundwater; particularly, under the condition of realizing the in situ monitoring, the sampling difficulty is reduced and the sampling process becomes simple and fast.

The invention discloses a novel osmotic on-line soil pH value sensor, which relates to the field of soil science research and includes a soil solution filter, a transmitter is fixedly connected to the middle part of the upper surface of the soil solution filter, and an upper surface of the soil solution filter There are soil solution collection ports on both sides of the surface, stainless steel filter screens are fixedly connected to both sides of the inner top wall of the soil solution filter, and a coarse-grained quartz sand layer is fixedly connected to the inner bottom wall of the soil solution filter. The upper surface of the layer is fixedly connected with a partition, the upper surface of the partition is fixedly connected with a fine-grained quartz sand layer, and the middle part of the lower surface of the soil solution filter is fixedly installed with a solution collection cylinder. The invention realizes the real soil direct burial measurement, and can observe the soil pH information online for a long time. Compared with the traditional laboratory method of taking soil and extracting the soil solution for measurement, the measurement efficiency is greatly improved, and the measurement accuracy is not significantly reduced. .

The invention discloses a soil leaching liquor collection method under natural conditions, which belongs to the research field of environmental science, soil science and plant nutrition. The soil leaching liquor collection method of the invention mainly includes the following steps: a soil profile in the vertical direction is obtained and the dug-out soil is piled up layer by layer according to depth; a horizontal cave is dug based on the target depth of the soil profile and the upper surface of the cave is guaranteed to be level; a leaching plate is inserted into the cave and slurry modulated out of soil of the soil layer of the target depth is placed into the leaching plate; the dug-out soil is backfilled layer by layer and then compacted layer by layer, moreover, in order to recover the raw condition of the backfilled soil as possible, the backfilled soil is irrigated for a plurality of times. The method of the invention can realize collecting and monitoring the soil leaching liquor under natural conditions, in particular is suitable for monitoring the influence caused by the soil leaching liquor of such soil solute as nitrogen, phosphorus and pesticide, etc., on the groundwater.