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Effects of fertilizer application with different ratios of N, P and K on soil-microbial C, N and P stoichiometric characteristics of Sapindus mukorossi
LIU Juntao, JIA Liming, ZHANG Weihua, LONG Da, YANG Hongbing, ZHOU Ling, YUE Tianze, ZHANG Guoqing, LIAO Huanqin, CAO Qiuli
Journal of Nanjing Forestry University (Natural Sciences Edition) ›› 2026, Vol. 50 ›› Issue (2) : 225-235.
PDF(2141 KB)
PDF(2141 KB)
Effects of fertilizer application with different ratios of N, P and K on soil-microbial C, N and P stoichiometric characteristics of Sapindus mukorossi
【Objective】This study aims to investigate the soil organic carbon (SOC), total nitrogen (TN), total phosphorus (TP), microbial biomass carbon (MBC), microbial biomass nitrogen (MBN) and microbial biomass phosphorus (MBP) contents and their stoichiometric relationships under different NPK fertilizer ratios in the Sapindus mukorossi plantation soil, and provide theoretical bases for the nutrient management of the plantation and the scientific cultivation of woody oilseed species.【Method】Using S. mukorossi ‘Yuanhua’ as the research material, the “3414” fertilization test group design was adopted, and different ratios of nitrogen (N), phosphorus (P) and potassium (K) fertilization tests were carried out [0 level(CK): no fertilization of N, P and K; one level: N fertilizer 300 kg/hm2, P fertilizer 250 kg/hm2, and K fertilizer 200 kg/hm2; Two level: N fertilizer 600 kg/hm2, P fertilizer 500 kg/hm2, K fertilizer 400 kg/hm2; Three level: N fertilizer 900 kg/hm2, P fertilizer 750 kg/hm2, K fertilizer 600 kg/hm2]. SOC, TN, TP, and MBC, MBN, MBP content in forest soils were measured.The soil-microbial stoichiometric ratios for carbon, nitrogen, and phosphorus were calculated. This study analyzed the effects of different fertilization treatments on the content and stoichiometric ratios of SOC, TN, TP, MBC, MBN and MBP in forest soils of S. mukorossi ‘Yuanhua’. Combined with correlation analysis, redundancy analysis, and membership function analysis.【Result】Compared with CK treatment, fertilization with different nitrogen, phosphorus and potassium ratios had a significant effect on SOC, TN, TP and MBC, MBN and MBP contents of S. mukorossi soils, which increased by 14.25%-52.61%, 3.90%-39.84%, 9.52%-150%, 6.65%-47.45%, 11.84%-46.50% and 14.91%-201.98% compared with CK, respectively. Regression analysis showed that the internal stability indices of MBC, MBP and their MBC/MBP and MBN/MBP were all in 0.50-0.75, which were weakly sensitive characteristics.The internal stability index of MBN was 0.29, indicating weak homeostasis, while that of C/N was ≤0, reflecting strong homeostasis.Redundancy analysis showed that SOC and TP contents were the main factors affecting soil MBC, MBN, MBP contents and stoichiometry. Correlation analysis showed that SOC was highly significantly positively correlated with TN, TP, C/N, MBC, and MBN, and significantly negatively correlated with N/P. Soil TP and MBP were highly significantly correlated with MBC and highly significantly negatively correlated with C/P, N/P, MBC/MBP and MBN/MBP. According to the comprehensive evaluation and analysis of the affiliation function method, the fertilizer treatment with the ration combination N1P1K2(N fertilizer 300 kg/hm2, P fertilizer 250 kg/hm2, and K fertilizer 400 kg/hm2) can improve the soil nutrient content of S. mukorossi in different degrees.【Conclusion】From the comprehensive analysis, different NPK ratios of fertilizer application obviously changed the MBC, MBN and MBP contents of forest soil and their stoichiometric ratio characteristics, and the N1P1K2 treatment could obviously improve the conversion and decomposition of microorganisms on soil carbon, resulting in changes in the stoichiometric ratios of organic matter and microbial biomass, and then improve the ability of S. mukorossi in fixing soil carbon.
Sapindus mukorossi clones / fertilization of N, P and K / soil microbial biomass / ecological stoichiometry / homeostasis
| [1] |
曾德慧, 陈广生. 生态化学计量学:复杂生命系统奥秘的探索[J]. 植物生态学报, 2005, 29(6):1007-1019.
|
| [2] |
葛晓改, 曾立雄, 肖文发, 等. 三峡库区森林凋落叶化学计量学性状变化及与分解速率的关系[J]. 生态学报, 2015, 35(3):779-787.
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
李春越, 苗雨, 薛英龙, 等. 长期施肥黄土旱塬农田土壤-微生物-植物系统碳氮磷生态化学计量特征[J]. 生态学报, 2022, 42(1):370-378.
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
柴瑜, 李希来, 马盼盼, 等. 施肥和控鼠对退化高寒草甸植物-土壤-微生物碳氮磷化学计量特征的影响[J]. 中国草地学报, 2023, 45(1):12-22.
|
| [13] |
李春越, 郝亚辉, 薛英龙, 等. 长期施肥对黄土旱塬农田土壤微生物生物量碳、氮、磷的影响[J]. 农业环境科学学报, 2020, 39(8):1783-1791.
|
| [14] |
|
| [15] |
刘晗, 王萍, 孙鲁沅, 等. 种植冬绿肥对红壤幼龄橘园土壤微生物生物量碳、氮和酶活的影响[J]. 生态环境学报, 2023, 32(9):1623-1631.
|
| [16] |
陈婕妮, 石思雨, 钟羡芳, 等. 武夷山不同海拔土壤微生物生物量碳、氮、磷含量及其生态化学计量特征[J]. 生态学杂志, 2024, 43(10):2999-3004.
|
| [17] |
岳泽伟, 李向义, 李磊, 等. 氮添加对昆仑山高山草地土壤、微生物和植物生态化学计量特征的影响[J]. 生态科学, 2020, 39(3):1-8.
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
刘俊涛, 仲静, 刘济铭, 等. 无患子初果期人工林土壤和叶片C、N、P化学计量特征[J]. 南京林业大学学报(自然科学版), 2021, 45(4):67-75.
|
| [24] |
卫星杓, 戴腾飞, 刘诗琦, 等. 施肥对无患子叶片养分动态及产量的影响[J]. 南京林业大学学报(自然科学版), 2018, 42(5):17-24.
|
| [25] |
|
| [26] |
RAHMANK,
|
| [27] |
李桃祯, 邹清涛, 侯小青, 等. 配方施肥对刨花润楠土壤养分、微生物生物量及酶活性的影响[J]. 广西林业科学, 2019, 48(1):67-73.
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
崔纪超, 毛艳玲, 杨智杰, 等. 土壤微生物生物量磷研究进展[J]. 亚热带资源与环境学报, 2008, 3(4):80-89.
|
| [32] |
|
| [33] |
王传杰, 王齐齐, 徐虎, 等. 长期施肥下农田土壤-有机质-微生物的碳氮磷化学计量学特征[J]. 生态学报, 2018, 38(11):3848-3858.
|
| [34] |
|
| [35] |
ZHANGH,
|
| [36] |
|
| [37] |
|
| [38] |
|
| [39] |
|
| [40] |
|
| [41] |
刁励玮, 李平, 刘卫星, 等. 草地生态系统生物量在不同气候及多时间尺度上对氮添加和增雨处理的响应[J]. 植物生态学报, 2018, 42(8):818-830.
|
| [42] |
|
| [43] |
|
| [44] |
贾培龙, 安韶山, 李程程, 等. 黄土高原森林带土壤养分和微生物生物量及其生态化学计量变化特征[J]. 水土保持学报, 2020, 34(1):315-321.
|
| [45] |
|
| [46] |
李天平. 湘北丘陵区混交阔叶林不同树种土壤C、N、P生态化学计量学特征研究[D]. 长沙: 中南林业科技大学, 2015.
|
| [47] |
俞月凤, 彭晚霞, 宋同清, 等. 喀斯特峰丛洼地不同森林类型植物和土壤C、N、P化学计量特征[J]. 应用生态学报, 2014, 25(4):947-954.
|
| [48] |
许丽颖, 魏统超, 王佳音, 等. 氮、磷、钾肥对紫穗槐幼苗根叶化学计量特性的影响[J]. 森林工程, 2024, 40 (4):29-38.
|
| [49] |
臧逸飞, 郝明德, 张丽琼, 等. 26年长期施肥对土壤微生物生物量碳、氮及土壤呼吸的影响[J]. 生态学报, 2015, 35(5):1445-1451.
|
| [50] |
刘进, 李娟, 龙健, 等. 西南喀斯特区土壤生态化学计量与酶活性的海拔特征[J]. 森林与环境学报, 2022, 42(2):113-122.
|
| [51] |
|
| [52] |
|
| [53] |
张冠华, 牛俊, 易亮, 等. 不同植茶年限土壤-微生物生物量碳氮磷化学计量特征[J]. 应用生态学报, 2023, 34(4):969-976.
|
| [54] |
周正虎, 王传宽. 微生物对分解底物碳氮磷化学计量的响应和调节机制[J]. 植物生态学报, 2016, 40(6):620-630.
|
| [55] |
|
| [56] |
|
| [57] |
|
| [58] |
操敏, 李明. 行间生草对葡萄园土壤养分酶活性及微生物群落的影响[J]. 生态与农村环境学报, 2026, 42(1):91-101.
|
| [59] |
|
| [60] |
|
| [61] |
陆佳, 王华响, 陈利军. 连栽对桉树土壤稀有微生物群落及多功能性的影响[J]. 生态与农村环境学报, 2025, 41(8):1034-1044.
|
/
| 〈 |
|
〉 |