研究员、农业地理与乡村发展研究室副主任。1986年出生于山东省青州市，2015年获中国科学院地理科学与资源研究所地理学博士学位；2015-2017在中国科学院遥感与数字地球研究所、遥感科学国家重点实验室从事地理学博士后研究工作；2017年起在中国科学院地理科学与资源研究所人文地理专业工作至今。主要从事农业地理与土地利用研究，第一/通讯作者发表研究论文50余篇。主持国家重点研发计划青年科学家项目、国家自然科学基金、地理资源所“可桢-秉维”青年人才、中国科学院先导任务等多项科研项目/课题。曾获中国自然资源学会青年科技奖等。

研究领域

农业地理与土地利用。主要应用农户调查与农业统计、地面实验与遥感观测、数据与知识驱动的机器学习模型/过程机理模型等传统与现代智能融合技术，开展农业土地系统变化监测与模拟、土地利用变化的生态-经济效应评价、气候变化适应与农业地域格局优化等方面研究工作，致力于为区域土地可持续利用及“三农”发展提供科技支撑。

代表性学术论文

1.    Yihang Huang（黄一航）, Zhengjia Liu*. 2025. Increasing accumulated temperature pushed the maize planting limit northwards: Phenomenon analysis and coping strategy. Earth’s Future, 13, e2025EF005937.

2.    Zhengjia Liu, Haoning Wang（王浩宁）. 2025. Regional revitalizing divergences and reasons of targeted policy-driven rural developments in China with the help of provincial panel data. Journal of Geographical Sciences, 35(3): 483-500.

3.    Zhengjia Liu, Jiaqi Yang（杨佳琪）. 2025. Revealing geo-spatial disparity responses of cropland area dynamics to regional population size and economic development in China. Ecological Indictors, 181: 114394.

4.    Zhengjia Liu, Yihang Huang（黄一航）, Yongsheng Wang*, et al. 2024. Identifying the potential construction areas and priority of well-facilitated farmlands by developing a simple but robust method: A case study in dryland agriculture regions based on public data. International Journal of Applied Earth Observation and Geoinformation, 134: 104166.

5.    Ruijie Wen（温睿婕）, Zhengjia Liu*. 2025. Exploring trade-offs and synergies between economy development and ecosystem sustainability of the eco-fragile regions in the context of food security. Journal of Cleaner Production, 510: 145604.

6.    Yihang Huang（黄一航）, Zhengjia Liu*. 2024. Improving Northeast China’s soybean and maize planting structure through subsidy optimization considering climate change and comparative economic benefit. Land Use Policy, 146: 107319.

7.    Yu Liu（刘羽）, Zhengjia Liu*, et al. 2024. Spatially explicit priority optimization of land ecosystem services in the ecologically fragile region. Land Use Policy, 147: 107356.

8.    Zhengjia Liu, , , , , , Jieyong Wang*, et al. 2022. Patterns and causes of winter wheat and summer maize rotation area change over the North China Plain. Environmental Research Letters, 17: 044056.

9.    Xueqi Liu（刘雪琦）, Yansui Liu*, , Zhengjia Liu*. 2022. Evaluating potential impacts of land use changes on water supply-demand under multiple development scenarios in dryland region. Journal of Hydrology, 610: 127811.

10.    Humin Zhong（钟会民）, Zhengjia Liu*, et al. 2022. Understanding impacts of cropland pattern dynamics on grain production in China: An integrated analysis by fusing statistical data and satellite-observed data. Journal of Environmental Management, 313:114988.

11.    Yuqing Jian（简钰清）, Zhengjia Liu*, et al. 2022. Response of landscape dynamics to socio-economic development and biophysical setting across the farming-pastoral ecotone of northern China and its implications for regional sustainable land management. Land Use Policy, 122: 106354.

12.    Ming Wang（王明）, Zhengjia Liu*, et al. 2019. Mapping sugarcane in complex landscapes by integrating multi-temporal Sentinel-2 images and machine learning algorithms. Land Use Policy, 88: 104190.

13.    Zhengjia Liu, Yansui Liu, Jieyong Wang*. 2021. A global analysis of agricultural productivity and water resource consumption changes over cropland expansion regions. Agriculture, Ecosystems and Environment, 321: 107630.

14.    Zhengjia Liu, Jieyong Wang*, et al. 2020. Understanding the impacts of ‘Grain for Green’ land management practice on land greening dynamics over the Loess Plateau of China. Land Use Policy. 99: 105084.

15.    Zhengjia Liu, Yansui Liu*, Yurui Li. 2019. Extended warm temperate zone and opportunities for cropping system change in the Loess Plateau of China. International Journal of Climatology, 39: 658-669.

16.    Zhengjia Liu, Yansui Liu*, Yurui Li. 2018. Anthropogenic contributions dominate trends of vegetation cover change over the farming-pastoral ecotone of northern China. Ecological Indicators, 95(1): 370-378.

17.    Zhengjia Liu, Yansui Liu*, et al. 2018. Evaluation of Spatial and Temporal Performances of ERA-Interim Precipitation and Temperature in Mainland China. Journal of Climate, 31(11): 4347-4365.

18.    高佳, 赵荣荣, 杨宇, 刘正佳*, 等. 2025. 基于多主体演化博弈的黑土地保护动态协同路径研究. 中国土地科学, 39(11): 55-67.

19.    姜凯斯, 刘正佳*, 李裕瑞等. 2019. 黄土丘陵沟壑区典型村域土地利用变化及对区域乡村转型发展的启示. 地理科学进展. 38(9):1305-1215.

20.    刘正佳, 钟会民, 李裕瑞等. 2021. 近20年中国粮食生产变化特征及其对区域粮食供需格局的影响. 自然资源学报, 36(6): 1413-1425.

在研项目

2024-28，国家自然科学基金面上项目（42471302）

2024-27，国家重点研发计划青年科学家项目（2024YFD1502100）

2023-27，国家自然科学基金重大项目（42293270）专题研究任务

2022-26，国家重点研发计划项目（2022YFC3802801）子课题

2021-26，中国科学院A类科技专项课题（XDA28130400）及子课题

招生专业：人文地理学

招生方向：农业地理与土地利用

欢迎具有地理学、生态学、计算机科学、农学等背景，对土地可持续利用、气候变化与韧性农业、农业地理遥感大数据、农业生产力布局与优化模拟等研究方向感兴趣的同学报考。

联系方式：liuzj@igsnrr.ac.cn