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强化管理推动自然保护区的建设与发展

open access: yes野生动物学报, 1986
当前,环境、人口、能源和粮食是全球最为关注的四大问题。陆地生态系统的主体是森林,保护森林已刻不容缓。野生的动植物种是自然界留给我们的珍贵遗产,保护、拯救和发展这些遗产是我们的当务之急。建立自然保护区是保护野生动植物资源和生态环境行之有效的办法。国际上用自然保护区的总面积占国土面积的比例,衡量一个国家社会文明和科学技术的发展水平。我国地域辽阔、气候复杂、野生动植物资源丰富。我国有高等植物三万种、陆栖脊椎动物四千四百多种。大熊猫、金丝猴、白唇鹿 ...
doaj  

[Preoperative serum magnesium as a biomarker for predicting delirium following non-cardiac surgery in elderly patients: a retrospective cohort study]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao
Yuan M   +10 more
europepmc   +1 more source

[Application of multidisciplinary team diagnosis and treatment model in the management of patients with combined burns and heat stroke]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Jiang SS   +18 more
europepmc   +1 more source

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