土壤有机质和养分循环与优化管理对农业和环境具有重要意义。
Optimum management of the cycle of soil organic matter and nutrients has important roles for developing sustainable agriculture and promoting environmental safety.
然而当前的生产管理方式尽管有利于土壤有机质积累，但是也带来了一系列的生态环境问题。
Although the SOM content was improved, the current agricultural practices brought on a series of ecological problems as well.
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