A5100751517- Soil Carbon and Nitrogen Dynamics
- Aeolian processes and effects
- Soil erosion and sediment transport
- Soil and Unsaturated Flow
- Analytical Chemistry and Sensors
- Plant Ecology and Soil Science
- Climate change and permafrost
- Microbial Community Ecology and Physiology
- Peatlands and Wetlands Ecology
- Soil and Water Nutrient Dynamics
- Biocrusts and Microbial Ecology
- Nanocluster Synthesis and Applications
- Plant Pathogens and Fungal Diseases
- Plant Water Relations and Carbon Dynamics
- Climate change impacts on agriculture
- Mycotoxins in Agriculture and Food
- Inorganic Chemistry and Materials
- Botany and Plant Ecology Studies
- Agriculture, Soil, Plant Science
- Cryospheric studies and observations
- Plant Ecology and Taxonomy Studies
- Graphene and Nanomaterials Applications
- Plant Disease Resistance and Genetics
- Forest ecology and management
- Aquatic Ecosystems and Phytoplankton Dynamics
Tibet Academy of Agricultural and Animal Husbandry Sciences
2023
Chinese Academy of Sciences
2013-2021
Northeast Institute of Geography and Agroecology
2020-2021
Jiangxi University of Science and Technology
2021
Institute of Subtropical Agriculture
2017-2019
Zhanjiang Experimental Station
2017-2019
State Key Joint Laboratory of Environment Simulation and Pollution Control
2019
Tsinghua University
2019
Jilin University
2011-2018
State Key Laboratory For Conservation and Utilization of Subtropical Agro-Bioresources
2017
Strongly fluorescent graphene quantum dots (GQDs) have been prepared by one-step solvothermal method with PL yield as high 11.4%. The GQDs stability and can be dissolved in most polar solvents. Because of fine biocompatibility low toxicity, are demonstrated to excellent bioimaging agents.
In karst ecosystems, plants absorbing smaller amounts of nutrients, owing to shallow soil, show limited growth. addition, fine roots (diameter < 2 mm) contribute the regulation nutrient cycles in terrestrial ecosystems. However, spatial and temporal variations root biomass different vegetation types region remains poorly understood. this study, we investigated seasonal vertical variation biomass, necromass, total mass using sequential soil coring under stages restoration (grassland,...
Abstract: To better understand carbon (C) sequestration by Juglans regia L. plantations in karst regions of southwest China, this study examined biomass increment and C storage four different-aged J. stands, as well the distribution stock among various ecosystem components. Tree increased with stand age. Aboveground (AGB) represented 64.79% total biomass, belowground tree comprised 22.73%, shrubs herbs totaled 11.38%, whereas only a small amount (1.11%) was associated soil litter. Soil...
This study aims to provide basic data support accurate estimation of carbon stocks and reveal the physicochemical factors that influence cycle in saline–alkali soils. Soil samples were collected during initial freezing, complete thawing stages. Levels soil organic (SOC), inorganic (SIC), moisture, salinity, pH available nitrogen determined, variations observed freezing periods. Correlation analysis regression contents properties performed. The results showed freeze–thaw cycles have...
A two-year field experiment was performed to investigate greenhouse gas emissions from rice straw return different depths and soil types. The comprised of six treatments: without (silty clay loam, SC; sandy SL); topsoil (SCT, SLT); subsoil (SCS, SLS). SCT SLT released 2402.18 2494.01 kg ha−1 more CO2 than SC SL in total, respectively. Straw both textures significantly increased CH4 emissions. Compared the total cumulative fluxes SL, those by 239.62 131.34 ha−1, SCS SLS 125.07 89.93 emitted...
Shrub-induced spatial heterogeneity of soil and hydrological properties are common in arid semi-arid ecosystems. To examine the influence shrubs on patterns physical, chemical properties, typical sand-fixation species, Caragana korshinskii, was studied Shapotou area Tengger Desert, China. Miniature cylinder infiltrometers were used to quantify variations infiltration rate soils, installed at 20-cm intervals around shrubs. Meanwhile, samples collected 0–5 cm depth every 10 analyse their...
谢锦升 1,2,3* 1 福建师范大学地理科学学院, 福州 350007; 2 湿润亚热带山地生态国家重点实验室培育基地, 3 福建师范大学地理研究所, 350007 摘 要 研究侵蚀土壤有机质矿化及其温度敏感性(Q 10 )对深入认识水土流失地区土壤有机碳动态变化具有重要意义。该文 以福建省长汀县河田镇严重侵蚀区的裸露红壤为研究对象, 通过测定不同培养温度(10 ℃、 20 ℃和30 ℃)下的土壤有机碳矿 化速率、培养过程中微生物生物量碳(MBC)和可溶性有机碳(DOC)含量的变化, 探讨了温度对严重侵蚀红壤有机碳矿化特征 的影响及其Q 。结果表明: 温度对严重侵蚀红壤有机碳矿化具有显著影响, 温度越高土壤有机碳矿化速率和矿化率越高; 培 养过程中土壤有机碳累积矿化量与MBC显著正相关, 与DOC极显著负相关, 说明微生物生物量和可利用碳含量显著影响土 壤有机碳的矿化。尽管严重侵蚀红壤有机碳含量仅为1.54 g•kg -1 , 但培养180天的土壤有机碳的累积矿化率高达22.2%-33.3%,表明侵蚀红壤有机碳容易被矿化。严重侵蚀红壤在10-20 ℃时的Q 值为1.41,...
Abstract Conversion of grassland into cropland always induces a great degradation soil organic carbon (SOC). However, during this process information on microbial residue C (MR‐C) and its contribution to SOC with increasing conversion age remain scarce. The relative properties the accumulation amino sugars is still poorly understood. Here, we studied variations in MR‐C, their (5 (M05), 16 (M16) 34 (M34) years, respectively) from cropland. In contrast contents glucosamine, fungal...
본 연구의 목적은 대학생들의 소셜미디어에서 준사회적 상호작용이 스포츠 스타 특성과 구매의도에 미치는 영향 을 알아보는 것이다. 목적을 달성하기 위하여 대학생 284명을 대상으로 설문조사를 실시하여 자료를 수집하였 다. 수집된 자료는 구조방정식 모형분석을 사용하여 변인 간의 구조적 관계를 검증하였고, 매개효과를 검증하기 부트스트랩핑을 활용하여 유의도 검증을 다음과 같은 결론을 얻었다. 첫째, 스타의 신뢰성은 상호작용에 영향을 것으로 나타났다. 둘째, 전문성은 상호 작용에 셋째, 신체적 매력성은 미치지 않는 넷째, 사회적 다섯째, 상호작용은 특성의 하위 요인인 신뢰성, 전문성, 매력 성과 구매의도와의 관계는 매개효과가 있는