以下为句子列表：
英文: Due to the detrimental effects of soil disturbance, fertilization of perennial forage crops, established pastures, and silviculture systems; are obviously highly dependent upon surface application on residue covered soil.
中文: 在多年生牧草、牧场和造林体系上，由于翻动土壤会产生不利影响，施肥显然主要是在有残茬的土壤上表施。
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英文: Quite a few pilot research projects have been carried out.on demonstrating new silviculture techniques for re-vegetation in DHV, but there still exist great difficulties in carrying out large-scale afforestation engineering.
中文: 目前已经开展了一系列的有关造林技术的前期研究项目，但大规模的造林培育工程尚难以开展。
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