在鄂尔多斯沙地改良试验站的撂荒地和退耕地，测定和分析了多年生人工草地对土壤呼吸速率的影响。
An analysis on the effect of cultivated grassland on soil respiration rate was conducted for the abandoned land and the transferred farmland in the Ordos Sandy land Improvement Experimental Station.
草地具有一定的生产力和经济价值，且利用方式和改良途径有较大的一致性。
Grassland has certain productivity and economic value, and the ways of its utilization and improvement are somewhat coherent.
草业：培育改良天然草场，在人工草地引种高产优质牧。
Grass industry: improvement of natural grassland and planting of grasses high in yield and quality on artificial grassland.
结果表明：松栎混交林对土壤的改良效果最好，草地次之，马尾松纯林则较差。
The results indicated that the effect of mixed masson pine and oak forest on soil amelioration was the best, that of grass was the second and the pure masson pine forest was the worst.
草地补播是众多草地改良技术措施中具有特殊功用的一种。
Resowing is one of many technological measures in rangeland improvement.
本发明公开了一种高效草地改良机，属于草地机械化改良技术领域。
The invention discloses a high-efficiency lawn improving machine and belongs to the technical field of lawn mechanical improvement.
本发明公开了一种高效草地改良机，属于草地机械化改良技术领域。
The invention discloses a high-efficiency lawn improving machine and belongs to the technical field of lawn mechanical improvement.
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