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Journal of Plant Nutrition and Fertilizers (ISSN 1008-505X), a peer-reviewed sci-tech academic journal with English abstracts, key words and references, is superintended by the Ministry of Agriculture and Rural Affairs of China, sponsored by the Chinese Society of Plant Nutrition and Fertilizer, administered by the Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences.
Journal of Plant Nutrition and Fertilizers was started in September of 1994,and officially published in 1999. As one of the high-level academic journals in the field of integrated agricultural sciences in China, the journal has the highest impaction factor in both the fields of fundamental agricultural sciences and agronomy sciences in China since 2008. It has been honored a member of Core Sci-Tech Journal of China since 2013, and was one of the 100 Outstanding Academic Journals of China (2007), Outstanding S&T Journal of China (2008, 2011, 2017). The journal is accepted by some important international and national databases and retrieval systems, such as Chemical Abstract (CA) of USA, Centre Agriculture Bioscience International (CABI), Japanese Science Technology Agency (JST), Chinese Electronic Periodical Services (CEPS), Chinese Academic Journal Comprehensive Evaluation Database (CAJCED), FAO database (AGRIS), etc. as data source.
More>In China, most agricultural soils have structural obstacles such as shallow plow layer, crust, and compaction, which seriously affect crop yields and threaten food security. Some methods such as deep plowing and deep loosening, application of organic fertilizer, returning straw to the field and adding biochar, are often used in modifying soil structure, and have resulted in obvious changes. However, the high cost and environmental risks brought about by these methods are not negligible. Recently, the biological potential of plant roots have caused concerns on their great potential to change soil pore characteristics through root growth and release of root exudates. As a "green" way to reduce soil barriers, root zone soil structure regulation has important theoretical and practical significance. Here, in this review, we summarize the characteristics of soil structure in the root zone, and the advantages and disadvantages of the existing measures to reduce soil structure barriers, and discuss the feasibility of exploring and strengthening root-soil interaction and using plant roots to reshape soil structure based on the theory of "Rhizobiont". Specifically, we focus on the design and construction of ideal soil structure from the perspective of soil pores. Different diameters of soil pores correspond to different functions. By selecting plants with specific root phenotypes to reshape the soil pore network, and then construct an ideal root zone soil structure to realize the coupling of soil structure and function.
Soil organic carbon (SOC) stabilization is a critical process in terrestrial organic carbon dynamics and is important in maintaining soil fertility and reducing greenhouse gas emissions. Traditionally, the stable carbon pool was thought to be dominated by the physico-chemical protection of certain recalcitrant organic compounds and the formation of recalcitrant humic substances. However, recent studies have suggested that microbe-mediated carbon cycling plays an important role in soil organic carbon stabilization. Arbuscular mycorrhizal fungi (AMF), as one of the most important symbiotic fungi in soil, contribute predominantly to transportation and distribution of plant photosynthetic carbon into the soil, which influence the terrestrial carbon cycling. However, the potential of AMF in SOC stabilization has not been fully explored. Thus, on the basis of estimating the allocation of plant photosynthetic carbon to extraradical hyphae, we reviewed the possible mechanism of AMF promoting the formation of soil stable organic carbon, mainly including the carbon retention in living hyphae, resistance and soil mineral adsorption of exudates and necromass, improvement of the quality and quantity of plant-derived carbon, priming effect of secretions and necromass and stabilization of soil aggregate. Then we reviewed the abiotic (climate, soil nutrition and minerals) and biotic (plant and AMF species) factors influencing the carbon stabilization. Finally, the future research directions of the interaction mechanism between AMF and SOC turnover were proposed, including exploring the mechanism of transformation of photosynthetic carbon into stable SOC in mycorrhizal plants, analyzing the contribution of AMF to stable SOC in different ecosystems and the influencing factors, and clarifying the relationships among AMF biomass, diversity and stable SOC under different management practices. These discussions provide a theoretical basis for fully utilizing AMF to enhance the carbon sink in terrestrial ecosystems and mitigating climate change.