Fan Ding 丁凡- Professor
- Professor at Shenyang Agricultural University
Fan Ding 丁凡
- Professor
- Professor at Shenyang Agricultural University
Editorial board member for《Science of the Total Environment》and 湖南生态科学学报
About
56
Publications
26,528
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,560
Citations
Introduction
I mainly focus on the soil organic matter formation and stability, and the environmental sequences of plastic film mulch in agroecosytem.
Current institution
Additional affiliations
July 2014 - present
Position
- Professor (Assistant)
Description
- Chinese website http://id.sciencenet.cn/index.php?s=/Index/index/user/dingfan1985
Education
September 2011 - July 2014
Institute of Botany, Chinese Academy of Sciences
Field of study
- Temperature sensitivity of soil GHG emission
September 2008 - July 2011
Institute of Applied Ecology, Chinese academy of sciences
Field of study
- Soil carbon cycle and land use change
September 2004 - July 2008
Publications
Publications (56)
Plastic film mulch (PFM) is a double-edged-sword agricultural technology, which greatly improves global agricultural production but can also cause severe plastic pollution of the environment. Here, we characterized and quantified the amount of macro- and micro-plastics accumulated after 32 years of continuous plastic mulch film use in an agricultur...
Conventional plastic mulch brings agronomic and economic benefits to crop production, but a large amount of plastic waste amasses when the mulch is removed from the fields after harvest. Soil-biodegradable plastic mulch (BDM) has emerged as a promising alternative to conventional plastic mulch as it can be tilled into the soil after harvest, thereb...
Plastic film mulching and urea nitrogen fertilization are widely used in agricultural ecosystems, but both their long-term use may leave a negative legacy on crop growth, due to deleterious effects of plastic and microplastic accumulation and acidification in soil, respectively. Here, we stopped covering soil with a plastic film in an experimental...
Mineral-associated soil organic matter (MAOM) is the largest, slowest-cycling pool of carbon (C) in the terrestrial biosphere. MAOM is primarily derived from plant and microbial sources, yet the relative contributions of these two sources to MAOM remain unresolved. Resolving this issue is essential for managing and modeling soil carbon responses to...
In their Letter‐to‐Editor, Liu & Chen (2024) raised the importance and suitability of our recent stoichiometric approach to assess the contribution of plant residue (litter) and microbial sources to mineral‐associated organic matter (MAOM). We highly appreciate their Letter as well as the further suggestion and comments and offer two points of clar...
While long-term plastic film mulching (LFM) of farmland can improve the yield and quality of crops, it also poses ecological risks through the accumulation of microplastics (MPs) in soil and alterations in soil nitrogen (N) cycling. However, no systematic studies (based on long-term experiments) have studied the effects of LFM on both soil MPs accu...
岩石圈和土壤圈是陆地上两个最大的碳库，正确评价两者的固碳作用对制定和推动国家碳中和战略至关重要。通过讨论两者碳库的数量及时间尺度、人工固碳措施效果、认识局限，深入剖析了两者碳中和的局限与不足。如果我国实施所有的碳汇目标导向型管理措施（包括部分草原和灌木地植树造林、50%退化草地封育、60%的农田进行秸秆还田、30%的农田开展免耕等），不同生态系统土壤每年总固碳量将为0.20 Pg C，仅占我国能源活动碳排放量的5.8% ~ 7.1%。但是，实施以上所有措施在实践上还存在很大难度，所以该碳汇量仅在理论上成立。尽管通过一些管理措施可以增加一定的土壤碳汇，但由于土壤固碳的稳定性和持续性问题，土壤固碳不太可能决定碳中和的走向。岩石圈的人工固碳措施成本高昂，回报率低，目前已开展的商业项目固碳量仅为0....
【目的】农用地膜表面是塑料降解菌筛选、动植物病原菌定殖及抗生素抗性基因富集的潜在热点区域，但地膜表面招募微生物的群落基本特征仍不明确，一定程度上限制了我们对地膜表面微生物定殖过程的理解。【方法】本研究基于地膜覆盖和施氮长期定位试验，2021年秋季采集覆膜当季的地膜样品，利用高通量测序分析了地膜表面的细菌与真菌群落特征。 【结果】地膜表面细菌以蓝细菌门（Cyanobacteria）、变形菌门（Proteobacteria）、
放线菌门（Actinobacteria）为主，而真菌以座囊菌纲（Dothideomycetes）为主。地膜及土壤表面均产生肉眼可见的绿色絮状微生物菌落，这说明了覆膜对地表微气候的改善有利于地衣系统的发育。施氮间接提高微生物群落α多样性，但不改变β多样性。同时，与对照相比，...
Background and aims Crop straw and it-derived biochar both increase soil fertility and stabilize soil structure. The contribution of these amendments to microbial biomass and aggregate formation, as well as carbon (C) and nitrogen (N) stabilization within aggregates is lacking.
Methods Maize straw that was labelled with 13C and 15N or its biochar (...
Film mulching decreased soil organic C content in soil aggregates with 0.053–0.25 mm diameter.
Fiber-shaped microplastics readily combined with the soil aggregates of 0.053–0.25 mm in diameter.
Film- and granule-shaped microplastics were dominant in 0.25–2 mm soil aggregates.
Natural and human activities changed the shape and size distribution of p...
Purpose Plant inputs provide the main food and energy for soil organisms. Considering substantial aboveground litter on the soil surface but few belowground input in the non-growing season, we hypothesize that aboveground input would have an important role in sustaining microbial abundance and community at this period.
Methods We initialed a manipu...
【目的】研究长期施用不同量磷肥对农田土壤和作物碳(Ｃ)∶氮(Ｎ)∶磷(Ｐ)生态化学计量学、微生物活性及土壤碳库数量和稳定性的影响，为农田养分调控和生态系统稳定提供科学依据。 【 方法】 以沈阳农业大学长期(２８年)地膜覆盖与施肥定位试验为平台，设置 ３ 个施磷处理：不施磷肥(Ｐ0)、67.5ｋｇＰ2 O５／(ｈｍ２) ( Ｐ１)、１35 ｋｇ Ｐ２ Ｏ５／(ｈｍ２) (Ｐ２)。 ２０１５ 年秋季收获期采集０～２０ｃｍ 土壤和玉米植株不同器官（ 根茬、茎秆、叶片、籽粒），测定土壤和作物 Ｃ、Ｎ、Ｐ 含量，土壤呼吸速率及土壤颗粒有机碳与矿质结合态有机碳含量。 【 结果】 与不施磷肥相比，长期施用磷肥增加土壤全磷、速效磷、碱解氮含量及土壤 ｐＨ，降低土壤 Ｃ/Ｐ 和 Ｎ/Ｐ，对土壤有机碳、全氮含量...
Nitrogen (N) cycling microorganisms mediate soil nitrogen transformation processes, thereby affecting agricultural production and environment quality. However, it is not fully understood how active N-cycling microbial community in soil respond to long-term fertilization, as well as which microorganisms regulate soil nitrogen cycling in agricultural...
Amendment of soil with biochar induces a shift in microbial community structure and promotes faster mineralization of soil organic carbon (SOC), thus offsetting C sequestration effects. Whether biochar induces losses of labile or persistent SOC pools remains largely unknown, and the responsible decomposers await identification. Towards addressing t...
【目的】推广生物降解地膜有望从根本上解决农田土壤残膜污染问题，但目前其对土壤微生物的影响情况尚不明确，这一定程度上限制了生物降解地膜在农业上的应用和推广。【方法】本研究基于2018年在辽宁阜新和海城建立的地膜覆盖玉米定位试验（试验设计相同，包含透明、黑色生物降解地膜和透明、黑色塑料地膜覆盖，以及不覆膜处理），测定了2019年春季土壤呼吸速率和春秋两季的土壤水解酶活性（β-葡萄糖苷酶、半纤维素酶、N-乙酰葡萄胺糖苷酶、亮氨酸氨基肽酶和酸性磷酸酶）、微生物量碳氮含量、磷脂脂肪酸（PLFA）含量。【结果】地膜短期覆盖对土壤可溶性有机碳、酶活性、微生物量碳氮及PLFA含量无显著影响。对于两个试验地点，覆盖生物降解地膜土壤呼吸速率均表现高于塑料地膜的趋势，说明生物降解地膜有提高微生物活性的潜力。【结论...
The return of crop residues to the soil is a common agricultural management practice for nutrient recycling and carbon sequestration. It is known that nitrogen (N) fertilization can influence crop residue decomposition and nutrient release. However, it is unclear whether the effect of N fertilization interact with plastic film mulching (PFM) or res...
Soil nematodes are key components of soil food web and, through their metabolic activities, play a crucial role in soil carbon (C) cycling. Aboveground and belowground plant C inputs can directly, or indirectly via soil microbes, modify nematode abundance and community composition. Aboveground and belowground C inputs differ in chemical composition...
Energy consumption dominates annual CO2 emissions in China. It is essential to significantly reduce CO2 emissions from energy consumption to reach national carbon neutrality by 2060, while the role of terrestrial carbon sequestration in offsetting energy-related CO2 emissions cannot be underestimated. Natural climate solutions (NCS), including the...
“黑土地保护”作为一项国家战略，已经写进我国“十四五”规划和“2035 年远景目标纲要”，中国科学院与东北三省政府签署了“黑土粮仓”科技会战框架协议，全力开展“黑土地保护”科技会战。当前“黑土地保护”科技攻关主要关注提升土壤有机质、降低土壤侵蚀、减少化肥和农药面源污染、推广保护性耕作等热点问题，而黑土地地膜残留与污染已经日渐严重，需要引起社会各界的高度关注和重视。尤其当前“黑土地保护”科技会战中，不能忽视东北地膜碎片（粒径大于 5 mm）及微塑料（小于 5 mm）的残留与污染问题。本文从东北地区地膜应用及污染概况、地膜残留与污染的影响因素、地膜残留对黑土地农业的危害进行了综述，并提出黑土地地膜污染研究亟待开展的研究方向：（1）摸清东北黑土地地膜残留的分布和数量；（2）明确残膜对作物/蔬菜等农...
Nitrogen (N) fertilization and plastic film mulching (PFM) are two widely applied management practices for crop production. Both of them impact soil organic matter individually, but their interactive effects as well as the underlying mechanisms are unknown. Soils from a 28-year field experiment with maize monoculture under three levels of N fertili...
Soil’s water-physical properties support essential soil water retention functions for driving water distribution and availability, which is vital for plant growth and biogeochemical cycling. However, the question concerning how tree compositions and their interactions with other abiotic factors modulate soil’s water-physical properties in disturbed...
目的】地膜覆盖是我国农业应用最为广泛的农艺技术之一，极大地促进了我国棉花产业的发展，推动了我国棉花主产区的变化。本文总结了我国棉花生产格局的变化特点，分析了地膜覆盖技术对我国棉花产业的影响，探讨了主要棉区农田土壤地膜残留污染特点和趋势。【方法】本研究采用了两种方法，一是实地调研，对我国主要棉区地膜应用和残留污染特点进行大范围采样，获取第一手数据，二是文献和统计数据收集，对过去几十年中与棉花地膜覆盖技术应用、数据进行整理归纳。【结果】研究结果显示，我国棉花的主产区也从过去的黄河和长江流域迁移到现在的西北内陆地区，其种植面积占全国的70%。新疆等西北内陆地区自1986年开始规模化应用地膜覆盖技术后，棉花单产（皮棉）快速上升，现在已经超过2000 kg/hm2，大幅度超过长江和黄河流域的棉花单产。...
传统塑料地膜覆盖带来巨大经济效益的同时，也引起了严重的土壤退化和污染。可降解地膜代替传统塑料地膜是未来的必然选择。本文针对近年来国内外关于传统地膜覆盖带来的土壤塑料残留和可降解地膜的最新研究进展进行了综述，并总结了该领域一些尚未解决的问题。主要包括：（1） 传统塑料地膜覆盖土壤中塑料的残留数量巨大，覆膜 20 a 的农田中大塑料(粒径大于 5 mm)的残留最高能达到 307.95 kg/hm2，覆膜农田中微塑料的残留也不容忽视，目前亟需制定出统一的土壤微塑料 （粒径小于 5 mm） 残留检测标准。（2） 新型可降解地
膜被认为是解决塑料地膜污染最有效的途径之一，但目前没有考虑到可降解地膜会碎裂成微塑料，可能会危害土壤健康，未来应加强这方面的研究。最后，本文对以上方向进行了展望，并提出可降解地...
Plastic polyethylene mulch has been widely used in crop production, but also causes environmental pollution if plastic residues accumulate in soil. Biodegradable plastic mulches (BDM) are a potential solution to problems caused by polyethylene mulches, as BDMs are designed be tilled into the soil after the growing season and then biodegrade. Howeve...
Background and aims
Soil water storage capacity acts as a vital forest function to intercept rainfall and retain water for plant growth processes. However, whether or how plant functional trait diversity and composition regulate soil water storage capacity remains poorly understood.
Methods
Structural equation modeling (SEM) was used to detect the...
Phosphorus is a key nutrient for all plant species and a limiting factor for grassland ecosystem function. In recent years, in response to the rapid increase of global nitrogen deposition, soil phosphorus contents and phosphatase activities changed to varying degrees in grassland ecosystems. We conducted a meta-analysis to examine the responses of...
Silicon (Si) plays an important role in improving soil nutrient availability and plant carbon (C) accumulation and may therefore impact the biogeochemical cycles of C, nitrogen (N), and phosphorus (P) in terrestrial ecosystems profoundly. However, research on this process in grassland ecosystems is scarce, despite the fact that these ecosystems are...
Microbial transformation of crop residue is the key process of soil organic matter (SOM) formation and mineralization, which determines soil fertility and affects global climate change. However, utilization dynamics of residue-derived carbon (residue C) by various microbial communities is still not well understood, especially under different residu...
为了解究长期地膜覆盖和施用有机肥对农田土壤和作物 C、N、P 化学计量学的影响，本研究 2015 年采集了沈阳农业大学长期地膜覆盖和施肥定位试验（建于 1987 年）土壤和当年生的玉米植株不同组织（根、秸秆、叶片、籽粒），测定了土壤和作物 C、N、P 含量。结果表明：长期地膜覆盖和施用有机肥均对土壤 pH 产生显著影响(P<0.01)，且两者存在显著的交互作用(P=0.001)；地膜覆盖对土壤全碳、全氮、全磷、碱解氮、有效磷，以及土壤 C:N:P化学计量学均没有显著影响P>0.05)，而施用有机肥会显著增加土壤全碳、全氮、全磷含量以及碱解氮和有效磷含量(P<0.01)，降低土壤 C/P 和 N/P(P<0.01)；除了叶片 N 含量和籽粒 P含量及 C/P 以外，地膜覆盖对玉米各组织中 C、...
Phytolith-occluded carbon (PhytOC) can be preserved in soils or sediments for thousands of years and might be a promising potential mechanism for long-term terrestrial carbon (C) sequestration. As the principal pathway for the return of organic matters to soils, the forest litter layers make a considerable contribution to terrestrial C sequestratio...
土壤有机质的数量和质量不仅是衡量土壤肥力状况的核心要素，其形成、转化及稳定过程还与全球气候变化密切相关。植物残体是土壤有机质的初始来源，但由于其腐解过程的复杂、多变性以及土壤有机质、微生物的高度异质性，植物残体向土壤有机质的转化和稳定机理尚不十分明确。本文介绍并讨论了近年来关于植物残体向土壤有机质转化相关研究的新发现，探讨了微生物源和植物源有机质对土壤有机质的贡献，概述了土壤有机质形成的微生物驱动机制，并综述了植物残体输入后土壤有机质稳定性的相关研究，最后对该研究领域未来的发展进行展望，以期能够为科学地提高土壤的固碳能力提供参考。
Purpose Crop residue return is an effective and low-cost agricultural approach for soil organic carbon (SOC) sequestration. Yet, it is largely unknown to what extent the soil fertility and residue type affect the mineralization of maize (Zea mays L.) residue carbon (C) and the decomposition of native SOC. Therefore, a better understanding of the mi...
Purpose
Soil aggregates play a crucial role in the sequestration of soil organic carbon (SOC). Returning crop residues to soil is known to strongly influence soil C stocks, but the specific contribution of crop residues to soil aggregates influenced by long-term fertilization remains largely unknown. This study investigated the effects of long-term...
Aims
Crop nitrogen (N) and phosphorus (P) stoichiometry can influence food nutritive quality and many ecosystem processes. However, how and why N and P stoichiometry respond to long-term agricultural management practices (e.g., N fertilization and film mulching) are not clearly understood.
Methods
We collected maize tissues (leaf, stem, root, and s...
Previous studies demonstrated that finer soil particles have smaller rates of CO2 emission but the larger Q10 values (the proportionate increase in the rate for a warming of 10 oC) than coarser particles. However, it has not been tested whether there is a regular pattern for rates and Q10 for N2O emission (net production) across soil particle size...
Purpose: Previous studies have found biochar-induced effects on native soil organic carbon (NSOC) decomposition, with a range of positive, negative and no priming reported. However, many uncertainties still exist for which parameters driving the amplitude and the direction of the biochar priming.
Materials and methods: We conducted a quantitative a...
Soil particle‐size fractionation is a reliable approach for the separation of carbon (C) pools with different stabilities. Our previous study found that C decomposition in fine soil particles had greater temperature sensitivity (Q 10 ) than in coarse particles in grassland and forest soils. However, it is not known whether this phenomenon occurs in...
Carbon (C) is a major component of soil organic matter, and crop residues are the main source of soil organic C (SOC). A large volume of studies have demonstrated that straw incorporation into the field is conducive to accumulation of soil organic matter and build-up of soil fertility. However, it is still not yet very clear how incorporation of co...
To investigate respiration from density fractions of cultivated soils and its temperature sensitivity,
laboratory incubation of upland and paddy soils were carried out for a period of 63 days at four temperature levels of 5, 15, 25 and 35 ℃. The upland and paddy soil samples were taken from Pingyi of Shandong Province and Taojiang of Hunan Provinc...
Afforestation, the conversion of non-forested land into forest, is widespread in China. However, the dynamics of soil organic carbon (SOC) after afforestation are not well understood, especially in plateau climate zones. For a total of 48 shrub- and/or tree-dominated afforestation sites on the Qinghai Plateau, Northwestern China, post-afforestation...
It is widely recognized that global warming promotes soil organic carbon (SOC) decomposition, and soils thus emit more CO2 into the atmosphere because of the warming; however, the response of SOC decomposition to this warming in different soil textures is unclear. This lack of knowledge limits our projection of SOC turnover and CO2 emission from so...
It is well recognized that global warming promotes soil organic carbon (SOC) decomposition, and thus soils emit more CO2 into the atmosphere under the warming, yet the response of SOC decomposition in different soil textures to the warming is unclear. This limits our projection of SOC turnover and CO2 emission from the soils under future warming. T...
Aims
Grassland conversion to cropland (GCC) may result in loss of a large amount of soil organic carbon (SOC). However, the assessment of such loss of SOC still involves large uncertainty due to shallow sampling depth, soil bulk density estimation and spatial heterogeneity. Our objectives were to quantify changes in SOC, soil total nitrogen (STN) a...
Afforestation is known as an available mitigation activity to climate change because it causes sequestration of CO2 from the atmosphere and stores it as the living biomass and the dead organic matter. However, the response of soil organic carbon (SOC) to afforestation in deep soil layers is still poorly understood. We surveyed previously published...
We measured total nitrogen (N) and total phosphorus (P) concentrations in leaves of Leymus chinensis , Phragmites communis and Lespedeza hedysaroides in Songnen Plain meadow, and analyzed their relationship with soil total N and total P concentrations. The results showed that foliar total N concentration differed significantly among three species (...
Questions
Questions (4)
Northeast China has a cold climate, with average temperature of 4.5 degree. The typical soil here is Mollisol with a high C content (13g/kg) in cropland. The data of a experiment site shows that soil organic matter does not change after 30 years of residue addtion, but increased by 50% after manure addition with same design. Manure has lower C/N than residue. It is sure that 13g/kg does not reach carbon saturation, otherwise manure cannot increase soil C. I will sample the soils and try to find the reasons.
Could you suggest some potential hypothese that i can check? Thanks!
I put crop litter in the field soils under a gradient of long-term N addition (N0, N1, N2). I measured the rate of litter decomposition and found that the rate is lowest in the treatment (N1) of medial N amount addition. This is different from previous studies who reported high N addition decease the rate of litter decomposition.
How to explain my results? I speculated that it may be N limitation in N0 but C limitaion in N2, resulting in their greater rate of litter decomposition compared to N1. For N1 treatment, it was neither C limitation nor N limitation. Is this explanation reasonable?
How to prove C or N limitation? I want to sample the soils under different treatments and incubate them with addition of C ( glucose ) or N ( ammonium or nitrate) substrates. Then, I measure the change of enzyme activities and microbial activities. I hypothesis that soil microbe was more sensitive to N addition in N0 treatment but more sensitive to C addition in N2 treatment.
Is my design reasonable? Are there some documents providing how to test C and N limitation for soil microbes (direct evidence)?
Thanks!
I am doing soil aggregate classification to divide soil to different sized aggregates including macro-aggregate (>250) and micro-aggregate (53~250). These obtained aggregates after sieving include sand content, which is not part of aggregate. Thus, it need to remove sand before analysis of soil aggregate.
