李德军 - 中国科学院亚热带农业生态研究所 -

个人简介

主要从事生态系统碳氮循环过程及其对全球变化响应、退化土地肥力提升机理与技术、有机废弃物资源化利用、新型微生物肥料等方面研究。近五年面向“重点区域生态环境评估与修复”这一国家重大战略需求，围绕“西南喀斯特生态系统氮素循环特征及固碳效应”这一关键科学问题，立足服务重大生态工程，同时面向喀斯特区域特色开展研究，并取得了系统性创新成果，发现喀斯特森林在区域尺度上表现出明显的氮饱和特征，而邻近的非喀斯特森林则表现出明显的缺氮特征；发现西南喀斯特山区退耕后土壤总氮和有机碳库能快速累积，并揭示了氮累积的机理，尤其是率先发现岩石氮释放是喀斯特土壤氮累积的重要机制；发现在喀斯特山区推行“人工种草”或实施“种养结合”型调整战略能显著提升农田土壤总氮和有机碳水平，等。研究成果有助于深入认识西南喀斯特生态系统氮循环，为喀斯特区域生态恢复工程深入实施及国家生态保护战略实施提供了科技支撑。在国内外主流刊物发表论文120余篇，包括SCI收录90余篇。论文被引用超过3200次。欢迎感兴趣的同学报考本研究组的硕士、博士研究生。另外，本研究组长期招聘博士后（专业为生态学、生物地球化学、环境科学、土壤学、植物营养学或相关学科），欢迎开展合作研究。承担科研项目国家高层次人才特殊支持项目、广西“八桂学者”人才项目、国家自然科学基金面上项目、国家重点研发计划课题、广西创新驱动重大专项课题，等。

近期论文

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Soil Gross Nitrogen Transformations in Typical Karst and Nonkarst Forests, Southwest China Effects of nitrogen addition on activities of soil nitrogen acquisition enzymes: A meta-analysis Divergent responses of biological nitrogen fixation in soil, litter and moss to temperature and moisture in a karst forest, southwest China Tree species effects on asymbiotic N 2 fixation in subtropical karst and non-karst forests Soil microbial processes and resource limitation in karst and non-karst forests Responses of soil gross nitrogen transformations to three vegetation restoration strategies in a subtropical karst region Coexistence of multiple leaf nutrient resorption strategies in a single ecosystem Soil carbon accumulation with increasing temperature under both managed and natural vegetation restoration in calcareous soils Parent material modulates land use effects on soil selenium bioavailability in a selenium-enriched region of southwest China Enhanced Wet Deposition of Water‐Soluble Organic Nitrogen During the Harvest Season: Influence of Biomass Burning and In‐Cloud Scavenging Ammonia should be considered in field experiments mimicking nitrogen deposition Lower Soil Carbon Loss Due to Persistent Microbial Adaptation to Climate Warming Wet and Dry Nitrogen Depositions in the Pearl River Delta, South China: Observations at Three Typical Sites With an Emphasis on Water‐Soluble Organic Nitrogen Impact of land use/land cover change on the topsoil selenium concentration and its potential bioavailability in a karst area of southwest China Substrate stoichiometry determines nitrogen fixation throughout succession in southern Chinese forests Responses of soil microbial resource limitation to multiple fertilization strategies Responses of soil microbial resource limitation to multiple fertilization strategies Topography Modulates Effects of Nitrogen Deposition on Asymbiotic N 2 Fixation in Soil but not Litter or Moss in a Secondary Karst Forest Variation of microbial residue contribution to soil organic carbon sequestration following land use change in a subtropical karst region Cropland conversion changes the status of microbial resource limitation in degraded karst soil Resource limitation of soil microbes in karst ecosystems Controls on soil arylsulfatase activity at a regional scale Dynamics of soil gross nitrogen transformations during post-agricultural succession in a subtropical karst region Free-living N2 Fixation in Three Karst Shrublands, Southwest China Nitrogen addition aggravates microbial carbon limitation: Evidence from ecoenzymatic stoichiometry Forage grass cultivation increases soil organic carbon and nitrogen pools in a karst region, southwest China Changes in soil nitrogen stocks following vegetation restoration in a typical karst catchment Changes in plant biomass induced by soil moisture variability drive interannual variation in the net ecosystem CO 2 exchange over a reclaimed coastal wetland Soil microbial community responses to forage grass cultivation in degraded karst soils, Southwest China Different responses of soil organic carbon fractions to additions of nitrogen Responses of soil phosphorus availability to nitrogen addition in a legume and a non-legume plantation

学术兼职

担任珍稀濒危动植物生态与环境保护教育部重点实验室学术委员会委员、辽宁省稳定同位素技术重点实验室学术委员会委员、多个学术期刊（Journal of Applied Ecology、Land Degradation and Development、Journal of Plant Ecology、NITROGEN、农业现代化研究等）编委。