主要研究方向和科研项目：

以真菌学为基础，现从事两方面的科学研究：1）地卷目地衣的分类学研究，2）大气化学元素污染的地衣生物积累法监测。

主持和参加基金项目6项：

1.国家重点研发计划重点专项项目（2016YFC0500700）子课题，第一承担人，《中国北方农牧交错带元素大气沉降的地衣法监测》；

2.河北省自然科学基金项目（C2014201032），第一承担人，《京津冀偏远山区大气金属沉降监测的地衣筛选》；

3.国家自然科学基金重大项目（31093440）子课题，第一承担人，《中国地衣志 地卷目Ⅱ》；

4.国家自然科学基金项目（31000239），第一承担人，《用于中国北方农牧交错带生物地毯工程的地衣筛选》；

5.河北省自然科学基金项目（C2010000268），第一承担人，《用于冀北蒙南退化生态系统治理的地衣物种筛选》；

6.中国极地科学战略研究基金项目（20080205），第一承担人，《用于南极大气沉降重金属元素监测的地衣筛选与应用》；

已发表论文40余篇，专著2部。

2015年至今发表论文16篇，如下：

1. Jia Sheng-Ju, Zhang Xin, Liu Qing-Xue, Chen Qing-Zhi, Li Xing, Pang Xue-Min, Li Jian-Jun, Wu Qing-Feng, Zhao Liang-Cheng *,Liu Hua-Jie*.2020. Spatial-temporal patterns of element concentrations inXanthoparmelia camtschadalistransplanted along roads.Polish Journal of Environmental Studies, 29(1): 121–129.https://doi.org/10.15244/pjoes/99905

2.吴园园,高静,赵润康,陈庆芝,柳燕云,张佳林,刘晓迪,康志娟,刘爱琴^*,刘华杰*.2020.黑龙江呼中自然保护区高山珊瑚枝假果柄不同部位的元素组成,生命科学研究, 24(1): 39-46.https://dx.doi.org/10.16605/j.cnki.1007-7847.2020.01.006

3. Zhao Li-Li, Zhang Chao, Jia Sheng-Ju, Liu Qing-Xue, Chen Qing-Zhi, Li Xing, Liu Xiao-Di, Wu Qing-Feng, Zhao Liang-Cheng*,Liu Hua-Jie*,2019. Element bioaccumulation in lichens transplanted along two roads: The source and integration time of elements.EcologicalIndicators, 99: 101-107.https://doi.org/10.1016/j.ecolind.2018.12.020

4.赵丽丽，杨梦杰，罗治定，马会春，庞雪敏，张兆法，李建军*，刘华杰*,2019.山西省太岳山区有害元素大气污染的地衣(丽石黄衣)监测.生命科学研究, 23(1): 28-34.https://dx.doi.org/10.16605/j.cnki.1007-7847.2019.01.004

5.Xia Yu, Zhao Li-Li, Wu Qing-Feng,Liu Hua-Jie*.2018. Four new records ofLeptogiumfrom China.Mycotaxon, 133(1): 55–61.https://doi.org/10.5248/133.55

6.Zhao Liang-Cheng, Wang Jing-Gong, Li Xing, Zhang Shuo, Zhang Zhao-Fa, Hu Ming-Yue, Lu Feng, Wang Yi-Dan, Hu Yan-Qiao, Guo Xiu-Ping, Liu Qing-Xue*,Liu Hua-Jie*,2018. Application of inductively coupled plasma-atomic emission spectrometry/mass spectrometry to phase analysis of gold in gold ores.ChineseJournalofAnalyticalChemistry, 46(2): e1801–e1809.https://doi.org/10.1016/S1872-2040(17)61070-3

7.贾晟菊，张超，罗治定，张硕，马会春，王传华，刘华杰*.2018.山西太行山区两种地衣—中国石黄衣和黄烛衣的元素含量差异.生态学杂志, 37(5): 1403-1409。https://dx.doi.org/10.13292/j.1000-4890.201805.018

8.Liu Hua-Jie*, Wang Jing-Gong, Xia Yu, Yang Meng-Jie, Liu Si-Wa, Zhao Liang-Cheng, Guo Xiu-Ping, Jiang Yun-Jun, Li Xin, Wu Qing-Feng, Fang Shi-Bo*.2017. Elemental compositions of lichens from Duolun County, Inner Mongolia, China: Origin, road effect and species difference. Scientific Reports, 7: 5598.https://doi.org/10.1038/s41598-017-06027-z

9.Zhao Liang-Cheng, Wang Li, Jiang Yun-Jun, Hu Yan-Qiao, Xu Chong-Ying, Wang Lei, Li Xing, Wei Li, Guo Xiu-Ping, Liu Ai-Qin*,Liu Hua-Jie*.2017. Determination of elemental concentrations in lichens using ICP-AES/MS.Bio-protocol, 7(5): e2165.https://doi.org/10.21769/BioProtoc.2165

10.Liu Hua-Jie*, Fang Shi-Bo*, Liu Si-Wa, Zhao Liang-Cheng, Guo Xiu-Ping, Jiang Yun-Jun, Hu Jian-Sen, Liu Xiao-Di, Xia Yu, Wang Yi-Dan, Wu Qing-Feng.2016. Lichen elemental composition distinguishes anthropogenic emissions from dust storm input and differs among species: evidence from Xilinhot, Inner Mongolia, China.ScientificReports. 6: 34694.https://doi.org/10.1038/srep34694

11.Liu Hua-Jie*, Zhao Liang-Cheng, Fang Shi-Bo, Liu Si-Wa, Hu Jian-Sen, Wang Lei, Liu Xiao-Di, Wu Qing-Feng*.2016. Use of the lichen Xanthoria mandschurica in monitoring atmospheric elemental deposition in the Taihang Mountains, Hebei, China.ScientificReports, 6: 23456.https://doi.org/10.1038/srep23456

12.Liu Hua-Jie*, Hu Jian-Sen, Wu Qing-Feng.2016. New species and new records of the lichen genusFuscopannariafrom China,Mycotaxon, 131(2): 455-465.https://doi.org/10.5248/131.455

13.赵良成，姜云军，郭秀平，李星，王亦丹，郭小彪，路峰，刘华杰*.2016.电感耦合等离子体发射光谱法/质谱法检测地衣样品中主次微量元素的方法优化.光谱学与光谱分析, 36(10): 3320-3325.

14.刘华杰，刘四娃，王磊，刘晓迪，赵良成，吴清凤*.2016.物种和基物偏好对河北太行山区6种地衣的元素含量的影响.菌物学报, 35(10): 1258-1267.

15.Liu Hua-Jie, Hu Jian-Sen, Li Chao.2015. The lichen genusKroswiain China.Mycotaxon, 130(4): 951-959.https://doi.org/10.5248/130.951

16.Liu Hua-Jie*, Xi Man-Qing, Hu Jian-Sen, Wu Qing-Feng.2015. Two new species and a new record ofLeptogiumfrom China.Mycotaxon, 130(2): 471-478.https://doi.org/10.5248/130.471