薪柴高消费引起各绿洲植被系统质量劣化，植被系统物种失衡，表现为垦区之间居民薪柴结构存在多种差别。
Excessive firewood consumption caused the vegetation system deterioration, the unbalance of species in each oasis system, appearing as various differences in the residents' firewood structure.
博尔塔拉河、精河流域；绿洲；植被盖度；自然；人文。
Bohe and Jinghe watershed; oasis; vegetation coverage; nature; humanities.
植被覆盖度是绿洲生态环境变化的最重要标志之一。
Plant cover is one of the most important sign of oasis ecological environment change.
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