中国自然保护地研究的现状、问题与展望

徐菲菲, 钟雪晴, 王丽君

Status, problems and prospects of domestic research on protected areas

XU Fei-fei, ZHONG Xue-qing, WANG Li-jun

图2 中国自然保护地研究关键词时区图谱

Fig. 2 Timezone map of co-occurance keywords analysis on the research of protected areas in China