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美国西南部干旱地区，由于气候干旱引起植物种类间的竞争，导致灌木入侵草地，造成荒漠化景观。针对这种情况，采取了农业耕作法、施用除草剂等补救措施，但成功率低，费用高，且生态效益不明显。通过对以前补救技术的研究，寻求了一种费用低、效益高、综合社会效益好的生态技术措施，并用实例说明了这种方法的具体应用。但这种方法并不是适用所有的地区，受水土流失、植物种类间竞争的限制。对小范围成功和土壤─植被─微生物之间关系的研究，说明生态技术措施对干旱、半干旱地区植被恢复有很大的潜力。
In arid regions of the southwestern United States, competition from plant species due to arid climates has led to the invasion of shrubs into the grasslands, resulting in desertification landscapes. In view of this situation, agricultural cultivation methods and herbicide remedies have been adopted, but the success rate is low, the cost is high, and the ecological benefits are not obvious. Through the study of previous remedial technologies, a series of eco-technical measures with low cost, high benefit and good comprehensive social benefits have been sought, and the practical application of this method has been illustrated. However, this method is not suitable for all areas and is subject to soil erosion and competition among plant species. The research on the relationship between small-scale success and soil-vegetation-microorganism shows that ecological technology measures have great potential for vegetation restoration in arid and semi-arid areas.