研究结果可为恢复植被，提高土地资源生产力提供科学参考。
This provided scientific reference for restoring vegetation and improving the productivity of land resources.
人口数量和土地资源生产力与耕地面积和土地单产潜力成正比。
The population and the gross potential land resource are proportional to the arable land area and its unit productivity.
对于强酸性土壤而言，由于其有限的适宜范围和较低的生产力水平，一向被认为是不宜用于农业生产的土地资源。
Because of limited suitable and with lower productivity level, the excessive acidic soil is used to serve as the land resources that agriculture produce unwillingly.
坡度和高程是土地资源固有的二个重要环境因子，对土地利用和土地生产力有直接作用。
Nature slope and sea level elevation are two important intrinsic environmental factors of land resource which have some direct effects on the use and productive forces of land.
坡度和高程是土地资源固有的二个重要环境因子，对土地利用和土地生产力有直接作用。
Nature slope and sea level elevation are two important intrinsic environmental factors of land resource which have some direct effects on the use and productive forces of land.
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