铯137可在生态系统循环数十年，被根系吸收后进入植物，并在植物死亡后再回到土壤。
Long-lasting particles of cesium 137 can cycle through an ecosystem for decades, entering plants when they are taken up by root systems and returning to the earth when the plant dies.
由于陆地生态系统中通气状况良好的土壤是甲烷最大的吸收汇，研究吸收汇强度及其影响因素对估算大气中甲烷储存增量、采取措施增强土壤吸收汇的强度是很有意义的。
It is important to study the sink strength and the influence factors for the purpose of balancing the methane in atmosphere and taking measures for increasing the uptake capability.
由于陆地生态系统中通气状况良好的土壤是甲烷最大的吸收汇，研究吸收汇强度及其影响因素对估算大气中甲烷储存增量、采取措施增强土壤吸收汇的强度是很有意义的。
It is important to study the sink strength and the influence factors for the purpose of balancing the methane in atmosphere and taking measures for increasing the uptake capability.
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