Water use characteristics of bamboo (South China)

竹子水分利用特征（华南地区）

• 批准号: 194567477
• 负责人: Professor Dr. Dirk Hölscher
• 金额: --
• 依托单位: Abteilung Waldbau und Waldökologie der Tropen
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/194567477?language=en
• 关键词: Water; use; characteristics; bamboo; South

Bamboos (Poaceae) are widespread in tropical and subtropical forests. Particularly in Asia, bamboos are cultivated by smallholders and increasingly in large plantations. In contrast to trees, reliable assessments of water use characteristics for bamboo are very scarce. Recently we tested a set of methods for assessing bamboo water use and obtained first results. Objectives of the proposed project are (1) to further test and develop the methods, (2) to compare the water use of different bamboo species, (3) to analyze the water use to bamboo size relationship across species, and (4) to assess effects of bamboo culm density on the stand-level transpiration. The study shall be conducted in South China where bamboos are very abundant. It is planned to work in a common garden (method testing), a botanical garden (species comparison, water use to size relationship), and on-farm (effects of culm density). Method testing will include a variety of approaches (thermal dissipation probes, stem heat balance, deuterium tracing and gravimetry), whereas subsequent steps will be based on thermal methods. The results may contribute to an improved understanding of bamboo water use characteristics and a more appropriate management of bamboo with respect to water resources.

竹子（肉毒科）在热带和亚热带森林中广泛。特别是在亚洲，小农培养了竹子，在大型种植园中越来越多地种植。与树木相反，对竹子的用水特征的可靠评估非常稀缺。最近，我们测试了一组评估竹水的方法，并获得了首先结果。拟议项目的目标是（1）进一步测试和开发方法，（2）比较不同竹种的用水，（3）以分析水的用水与种群之间的竹子大小关系，以及（4）评估竹culm密度对独立蒸发的影响。该研究应在中国南部进行，那里的竹子非常丰富。它计划在一个共同的花园（方法测试），植物园（物种比较，用水量与尺寸关系）和农场（CULM密度的影响）中工作。方法测试将包括各种方法（热耗散探针，茎热平衡，氘跟踪和重量法），而随后的步骤将基于热方法。结果可能有助于提高人们对竹水利用特征的了解，并在水资源方面对竹子进行更合适的管理。