Changde is an important town,and one of economically advanced regions in Northwestern Hunan,and has a very strict requirement for environmental quality.
常德市是湘西北重要城市,也是经济较发达地区之一,对环境的质量要求也比较高。
参考来源 - 香樟在常德市园林绿化中的应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The Ni-Mo polymetallic deposit in northwestern Hunan is highly enriched by Ni, Mo, Ptgroup elements and As, SE, and etc.
上述地球化学特征表明了湘西北镍钼多金属矿床的形成特征。
Here described are Silurian-Devonian ichnofossils from northwestern Hunan, with a total of 14 genera, 28 species and 2 subspecies(including 15 new species and 2 new subspecies).
记述了湘西北地区志留、泥盆系的遗迹化石14属，28种、亚种（包括15新种，2新亚种）。
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