Zhuang Ge

Dalian University · College of Life and Health

Microbial necromass carbon (MNC) is a major contributor to soil organic carbon (SOC) sequestration. Fertilization combined with plastic film mulching, as an intensive agricultural practice to increase crop yields, affects soil microbial growth and metabolism. Nevertheless, how fertilization combined with mulching affects SOC sequestration by mediat...

Soil organic carbon (SOC) accumulation is easily susceptible to tillage managements, which strongly affect soil structure and microbial community structure. Subsoiling is developed for mitigating soil compaction and thus improving soil structure. Coupled with straw residue incorporation, it is expected not only to enhance this improvement but also...

The Mollisol region of Northeast China has a large soil organic carbon (SOC) storage which is important for maintaining soil fertility. SOC is susceptible to various environmental factors; however, the responses of SOC content to environmental factors in different soil layers of cropland remain unclear, particularly in deep soil layers. In this stu...

1990年，2018年选取其中不施肥对照 (CK)、单施化肥(NPK)和有机肥配施化肥(MNPK) 三个处理进行秸秆微区田间试验。这三个处理的土壤中分别 再设加入1 cm 长玉米秸秆6000 kg/hm 2 的处理(CKS、NPKS、MNPKS)和不加入玉米秸秆的处理(CK、NPK、 MNPK)，共6个处理。秸秆与土壤混匀后置于PVC框(长0.9 m、宽0.6 m、高0.6 m)内，PVC框上端高于地 面20 cm。在PVC框埋入土壤60天(夏季)、150天(秋季)后，取土样测定理化性状及氨基葡萄糖(GluN)、氨基 半乳糖(GalN)和胞壁酸(MurN)含量。微生物真菌残体碳和细菌残体碳含量依据各氨基糖含量计算。【结果】 与CK相比，NPK和MNPK处理能够促进氨基糖在土壤中的积累，其中第...

The subsoiling tillage managements have been recommended to remediate subsoil compaction and maintain crop production. These practices can improve soil properties and fertility due to soil loosening and straw incorporation, and further affect soil microbial community characteristics. However, the response of soil microbial community structure to su...

Abstract Straw incorporation is an effective measure for increasing soil organic carbon (SOC) thereby improving soil quality and crop productivity. However, quantitative assessments of the transformation and distribution of exogenous carbon (C) in soil aggregates under various field fertilization practices have been lacking. In this study, we colle...

Straw residue amendment and fertilization are the key global management strategies for achieving more sustainable agriculture. However, the temporal changes in labile soil organic carbon (SOC) fractions and microbial community (MB) in response to differential long-term fertilization during straw residue decomposition remain unclear. We collected to...

Nano and colloidal particles (1-1000 nm) play important roles in phosphorus (P) migration and loss from agricultural soils; however, little is known about their relative distribution in arable crop soils under varying agricultural geolandscapes at the regional scale. Surface soils (0-20 cm depth) were collected from 15 agricultural fields, includin...

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。

Abstract 【Objective】 In this study, effects of dry-wet alternation on diversity, abundance and structure of the soil microbial community in the black soil of a long-term stationary field experiment in Dehui of Jilin on tillage modes, no-tillage or ridge tillage, were investigated. So far few reports were detected in the literature about responses o...