The area of the arbor forest（including coniferous forest,broadleaved forest and mixed wood） had reduced and the change quantity was very large,however,the area of the shrubbery had increased constantly.
但库区内乔木林（针叶林、阔叶林、针阔混交林）面积减少且变化量较大,而灌木林面积呈现上升趋势。
参考来源 - 三峡库区1988～2007年植被覆盖动态变化研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N-UNCOUNT You can refer to a lot of shrubs or to shrubs in general as shrubbery. 灌木丛; 灌木
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