结果表明，全氮、碱解氮和有机质是黄土丘陵区人工林土壤主要的肥力指标，其含量能更好地反映土壤肥力状况。
The results showed that total nitrogen, available nitrogen and organic matter were the main fertility indicators for soil fertility evaluation in the planted forest land on the Loess Plateau.
水土保持林有效覆盖率是水土保持林建设中的一个重要指标。
Effective cover rate for soil and water conservation forests is an important index in the construction of forestry.
同时文中给出了松嫩平原西部速生丰产林的防治指标。
At same time, the paper has also given the control index of fast-growing and high-yield plantation in the west part of Songnen plains.
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