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Water management in space - examples of hydration systems for cultivation in microgravity and future prospects

机译：太空水管理 - 微耕地栽培水合体系的例子和未来前景

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摘要

The movement of water in, across and out of the plant is a key factor when growing plants as part of a closed regenerative life support system required for long duration space missions. Under microgravity conditions, it has been proven that transpiration rate of leaves is suppressed by retarding the water vapour transfer due to restricted free air convection. Previous experiments on Mir and the International Space Station (ISS) illustrated the importance of monitoring the water status of plants in space. A frequently reported cause for loss of science in space experiments is wilting of seedlings because the water supply system in the growth facility (hardware) was not working properly. This could possibly have been detected earlier and prevented ifbetter tools for monitoring the plant water status were available. Currently, experiments in existing growth facilities on the ISS, as well as new hardware, are being designed to assess and monitor plant water uptake and transport in microgravity. However, finding suitable watering technologies and methods for monitoring water status in space facilities has proven to be challenging. These challenges include the confined environment, the limited amount of available water, as well as restrictions on upload mass and crew time on the ISS. Examples of hydration systems for plants grown on Mir and the ISS and technologies used for monitoring the water status in the growth media in previous space experiments, as well as future prospects will be presented.
机译：水中的运动，跨越植物的运动是当长期空间任务所需的封闭再生寿命支持系统的一部分时，植物的运动是一个关键因素。在微匍匐条件下，已经证明，通过延迟由于无限制空气对流引起的水蒸气转移抑制了叶片的蒸腾速率。以前关于MIR和国际空间站（ISS）的实验说明了监测太空植物水状况的重要性。在太空实验中丢失科学损失的经常报告的原因是苗木，因为增长设施（硬件）的供水系统无法正常工作。这可能已经检测到之前，可防止用于监测植物水状况的IF液滴。目前，正在旨在评估和监测微匍匐的植物水吸收和运输的现有增长设施的实验。然而，发现适当的浇水技术和用于监测太空设施水状况的方法，已被证明是具有挑战性的。这些挑战包括狭窄的环境，有限的可用水量，以及在ISS上上传质量和船员时间的限制。在MIR上生长的植物的水合系统和用于监测生长介质中的水状况的植物和技术的实例，将介绍在以前的空间实验中，以及未来的前景。

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  • 来源
    《Acta Horticulturae》 |2018年第1197期|共7页
  • 作者

    S.A. Wolff; L. Coelho; T.M. Hauan; A.I. Kittang Jost; G. Aronne;

  • 作者单位

    TNU Samfunnsforskning AS Centre for Interdisciplinary Research in Space Dragvoll Alle 38B N-7491 Trondheim Norway;

    TNU Samfunnsforskning AS Centre for Interdisciplinary Research in Space Dragvoll Alle 38B N-7491 Trondheim Norway;

    TNU Samfunnsforskning AS Centre for Interdisciplinary Research in Space Dragvoll Alle 38B N-7491 Trondheim Norway;

    TNU Samfunnsforskning AS Centre for Interdisciplinary Research in Space Dragvoll Alle 38B N-7491 Trondheim Norway;

    Department of Agricultural Science University of Naples Federico II Via Universita 100 1-80055 Portici (NA) Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 园艺;
  • 关键词

    irrigation; sensors; relative humidity; monitoring technologies; imaging;

    机译：灌溉;传感器;相对湿度;监测技术;成像;

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