复杂多样的地形地貌 the complex and varied terrains and landforms 改良草地 improved grassland 《关于加快造林绿化步伐的意见》the “Opinions on Acceleration of Afforestation” ..
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... 改良的计较器 improved calculator 改良的草地 Developed grassland ; improved grassland ; Improved grassland 改良的重手炮 Strong Hand Culverin ...
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Therefore, land use conversion from cropland to shrub land or maybe grassland, contributed to SOC sequestration and improved soil nutrients stabilization.
因此，从耕地利用土地转换为灌木林地或草地也许，有助于改善土壤有机碳养分吸收和稳定。
The results indicate: 1. In alpine region, the productivity of the grassland can be improved by establishing mixture grassland of cultivated perennial grasses.
结果表明：1 .在高寒地区，通过建植多年生混播禾草人工草地可达到提高草地生产力的目的。
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