Evaluation of bark respiration to carbon sequestrations using forest resources.

因此，有必要研制一种能同时测定树皮CO_2呼吸和非光合器官根系呼吸的野外装置。森林CO_2消耗量约占总生产量的80%。这对开发新的非常重要。本课题研制了一种新型的六通道气体测量系统，该系统由气体分析仪、气泵、空气流量控制器、三通阀和不同类型的气室组成，配合数据采集卡和专用软件（LabView，National Instruments Co.Ltd）。操作系统的开发和硬件的组合具有很高的灵活性。我们有很高的性价比来开发新的，在未来的需要，从各种研究领域;定义细根系统的呼吸。在基本操作测试后，我们开始测量Naeba山毛榉森林的田间条件。评估测量结果和系统运行是成功的，但此时正值冬季。它将在下个赛季受到挑战。

It is needful to develop the new field equipment which is possible to measure bark CO_2 respiration and root respiration of non-photosynthetic organs. CO_2 consumption of forest occupies ca 80 % to total gross production. That is very important to develop new one. Here we developed the new 6 channels measuring system consisting gas analyzer, air pumps, air flow rate controller, 3-way-valves and different type of chambers cooperated with DAQ-card and special software (Lab View, National Instruments Co.Ltd). It is high flexibility to develop the operating system and combining a hard ware. We have high cost performances to develop new one which needs in future and from various research area ; definition the respiration of fine root system. We move to measure the filed conditions in Naeba beech forest after basic operating test. It is successful to evaluate the measurements and system operating, however, it is in winter. It will be challenged to measure at next seasons.