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Plant rhizosphere box and its application in the study of wetland plant rhizosphere micro-domain

A plant root and micro-domain technology, which is applied to the plant rhizosphere box and its application field in wetland plant rhizosphere micro-domain research, can solve the problem that it is difficult to accurately identify the plant rhizosphere micro-interface and the inability to distinguish between rhizosphere soil and non-root soil. Soil and other problems, to avoid disturbance, strong pressure resistance, avoid small hole clogging effect

Active Publication Date: 2020-11-06
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the traditional methods for the study of constructed wetland matrix cannot distinguish between rhizosphere soil and non-rhizosphere soil; soil sampling is difficult to accurately reach the micro-interface of plant rhizosphere; traditional rhizosphere boxes are mostly static rhizosphere boxes deficiencies in the technology to provide a plant rhizosphere box

Method used

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  • Plant rhizosphere box and its application in the study of wetland plant rhizosphere micro-domain
  • Plant rhizosphere box and its application in the study of wetland plant rhizosphere micro-domain
  • Plant rhizosphere box and its application in the study of wetland plant rhizosphere micro-domain

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Embodiment 1

[0055] This embodiment provides a schematic diagram of a plant rhizosphere box structure as Figure 1 to Figure 3 shown.

[0056] The rhizosphere box described in this embodiment includes a box body 1, and the inner space of the box body 1 is divided into different rhizosphere micro-region partition units by several rhizosphere partition inserts 2, and the upper part of the box body 1 is provided with cloth Water unit, the box body 1 is also provided with a water level control unit; the bottom of the box body is provided with a drainage device.

[0057] In the present embodiment, each box body 1 is realized by 8 pieces of rhizosphere partition inserts to separate the areas of different distances from plant roots, and the rhizosphere box is divided into root zones S 0 : 20mm, proximal root zone S 1 : 0~3mm, S 2 : 3 ~ 8mm, distal root area S 3 : 8 ~ 40mm and non-rhizosphere S 4 .

[0058] Such as figure 2 As shown, the water level control unit includes a water collection...

Embodiment 2

[0080] The application implementation of embodiment 2 wetland rhizosphere rhizosphere box

[0081] The rhizosphere box described in Example 1 was used to detect the removal of pollutants by the experimental plants: a total of four monitorings were carried out, and three parallel devices were set up. The water quality indicators are analyzed according to the water sample chemical analysis method in the national standard, including chemical oxygen demand (COD Cr ), total nitrogen (TN), total phosphorus (TP), ammonia nitrogen (NH 4 + -N), Nitrate (NO 3 - -N). The measurement results are shown in Table 1.

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Abstract

The invention discloses a plant rhizosphere box and the application thereof in the micro-domain research of wet land plant rhizosphere. The plant rhizosphere box comprises a box body, the inside space of the box body is partitioned into a root zone, a near root zone, a far root zone and a non-root zone and other different rhizosphere micro-domain partition zones by a number of rhizosphere partition plugging plates, water distribution units are arranged on the upper part of the box body, and water level regulating units are also arranged on the box body; and a water discharging device is arranged on the bottom of the box body. Through the adjustment of the intervals between the different rhizosphere micro-domain partition zones, the accurate observation and the research of the differentiation changes of different distances from the root system, and / or root zone soil, and / or interval water nutrients, pollutant, and / or microorganism are achieved. Based on the plant rhizosphere box, water flooded habitat of plants grown in wet land can truly be simulated, so that water flow conditions in the substrate can be maintained, and different water pressure retention time and water levels are arranged according to the needs, and the plant rhizosphere box has wide application prospect in plants, especially in the micro-domain research of wet land plant rhizosphere.

Description

technical field [0001] The invention relates to the technical field of a rhizosphere box test device, and more particularly relates to a plant rhizosphere box and its application in the study of wetland plant rhizosphere micro-domains. Background technique [0002] Constructed wetland is an important wastewater ecological treatment technology. While its application value has attracted people's attention, the role of plants and microorganisms in wetland in the process of pollutant reduction has also attracted much attention. The plant rhizosphere is the core content and material basis of the micro-ecosystem at the root-soil interface. On the one hand, the secretion and respiration of wetland plant roots make the aerobic zone and anoxic zone exist at the same time in the root zone, providing their own microenvironments for aerobic, facultative and anaerobic microorganisms in the root zone, so that different microorganisms Both can play their respective roles; on the other han...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G9/02A01G27/00A01G31/02C02F3/30C02F3/32C02F3/34
CPCA01G9/028A01G27/02C02F3/30C02F3/32C02F3/34Y02W10/10Y02P60/21
Inventor 陶然满滢杨扬郭菁菁黄文达邰义萍
Owner JINAN UNIVERSITY
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