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植物-土壤之间的碳素流动是陆地生态系统碳循环的重要环节。总结了营养液培养法、同位素法和分子技术等现有根际碳沉积研究方法的优缺点,着重介绍了同位素计量法和C分配系数估算法两种植物根际碳沉积量的计量方法。但这些方法多数是在受控条件下对根际碳沉积量的计量,与原位条件下的根际碳沉积量有一定的差异,今后还需在研究方法的创新、根际碳沉积的变化动态评估以及植物根际碳沉积与环境因素的相关性等方面加大研究力度。
Plant-soil carbon flows are an important part of the terrestrial ecosystem carbon cycle. The advantages and disadvantages of existing rhizosphere carbon deposition methods such as nutrient solution culture, isotope method and molecular technique were summarized. The rhizosphere carbon deposition was measured by isotope method and C-partition coefficient method. However, most of these methods measure rhizosphere carbon deposition under controlled conditions and have some differences with rhizosphere carbon deposition in situ. In the future, there is still a need for innovation in research methods, changes in carbon deposition in the rhizosphere Dynamic assessment and plant rhizosphere carbon deposition and environmental factors and other aspects of increased research efforts.