An experimental setup to measure the effects of heatwave climate and mowing on grassland ecosystems

Abstract

The invention relates to the field of heat wave research, in particular to an experimental device for measuring the influence of heat wave climate and mowing on a grassland ecosystem. A simulated heatwave supporting bracket is horizontally arranged on the ground, transparent plastic cloth covers the outer side of the simulated heat wave supporting bracket, a heater is arranged on the top of the inner side of the simulated heat wave supporting bracket, a temperature tester is arranged on the upper portion of the inner side of the simulated heat wave supporting bracket, and a soil carbon flux automatic measuring system and a soil moisture tacheometer are arranged on the ground at the outer side of the simulated heat wave supporting bracket. The experimental device has a simple structure andreasonable design, and can conduct heat wave climate simulation on a grassland in a test area at any time and simulated mowing on vegetation in the test area, the carbon flux and water flux of the soil can be monitored and recorded in real time, and the maximum degree of mowing borne by the grassland ecosystem in the test area under the heat wave climate is simulated to provide effective reference for local vegetation-reducing work such as mowing, grazing and the like.

Description

Technical field: [0001] The invention relates to the field of heat wave research, in particular to an experimental device for measuring the influence of heat wave climate and mowing on grassland ecosystem. Background technique: [0002] As a type of extreme climate, heat waves have attracted more and more attention from the scientific community due to their increasing frequency, intensity and impact on ecosystems. Heat waves are often accompanied by drought, and mowing will accelerate the rate of water loss in grassland ecosystems, resulting in a decline in carbon flux and water flux in grassland ecosystems. At the same time, after the heat wave is over, it is accompanied by higher soil temperature. The soil temperature does not return to the level before the heat wave immediately after the heat wave, which accelerates the drought of the grassland ecosystem. [0003] The main forms of mowing include mowing and grazing, which are also the main forms of grassland ecosystem ut...

AI Technical Summary

Problems solved by technology

[0004] Grassland ecosystems in different regions have different levels of ability to withstand extreme climates, and the degree to which grassland ecosystems can withstand mowing also varies in different regions. How to control the degree of mowing to avoid damaging the local grassland ecosystem has become an urgent problem to be solved , in the prior art, there is no device that can be used to study and experiment this problem

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