It is important to study the soil spatial variability of N_2O, CO_2 production and the influencing factors for evaluating the role of forest ecosystems on the impact of the greenhouse effect.
研究森林土壤N_2O、CO_2产生的空间变异性及影响因子对准确估算森林生态系统对温室效应的影响具有重要意义。
Because there are many impact factors, and some judgment conditions are not easy to obtain, the application of Fuzzy theory to distinguish sandy soil liquefaction is a fairly reasonable approach.
由于影响砂土液化的因素太多，而且许多的判别条件不容易获取，应用模糊理论判别砂土液化是比较合理的方法。
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