以下为句子列表：
英文: Obviously, these results underline the experience of numerous upland farmers: Cultivation without safeguarding a fast and stable vegetative cover of crops inevitably leads to soil loss which means loss of productivity.
中文: 显然，这些结果与无数旱地农民的经验相符合：没有保证作物快速稳定的植被覆盖层的耕作无疑会造成土壤损失，进而引起生产力损失。
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英文: Accuracy evaluation of land vegetative cover index by RS detection
中文: 遥感探测土地植被覆盖指数的准确度评估
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