长期施肥对黑土水稳性团聚体稳定性及有机碳分布的影响

doi:10.3864/j.issn.0578-1752.2020.06.013

Abstract

Abstract:

【Objective】Based on the long-term fertilization experiment station, in aims to study the influences on the soil fertility by long-term application of chemical fertilizer and manure, the characteristics of water stable aggregates and structure of organic carbon was analyzed under different fertilizer application conditions.【Method】0-20 cm soil samples were collected from the 37-year long-term field experiment, including six treatments: CK (no fertilizer), NPK (chemical fertilizer alone), M₂ (normal manure application), M₂NPK (the chemical fertilizer combined with normal manure rate), M₄ (high quantity manure application), and M₄NPK (the chemical fertilizer combined with high quantity manure rate). Stability of water stable aggregates and distribution of organic carbon in aggregates were analyzed by wet sieve method.【Result】The proportion of large aggregates was reduced,while the proportion of micro aggregates was increased significantly under long-term application of organic and chemical fertilizer and high amount of organic fertilizer conditions. There was not significant change for the distribution of aggregates under long-term application of chemical fertilizer and constant organic fertilizer conditions. Compared with CK, the proportions in macro-aggregate of M₂NPK, M₄NPK and M₄ were reduced by 32.7%, 45.8% and 55.4%, respectively, and the proportion of that in micro-aggregate were increased by 73.2%, 102.5% and 123.9%, respectively. The stability of surface soil water stable aggregates was reduced significantly under long-term organic combined chemical fertilizer and high amount of organic fertilizer conditions. The soil organic carbon content was increased significantly by 1.12-2.06 times as much as CK under long-term fertilization condition, and the increase of organic carbon content was more significantly in organic fertilizer and organic combined with chemical fertilizer. The content of organic carbon in soil water stable aggregates of each size was increased under long-term organic fertilizer application, while the increase of organic carbon content in each treatment was gradually decreased with the decrease of particle size. Organic carbon content in the water stable macro-aggregate was significantly higher than that in the micro-aggregate, indicating that the organic carbon was mainly distributed in the macro-aggregate. The contribution rate of organic carbon in macro-aggregate was reduced significantly, and the contribution rate of organic carbon was increased significantly in micro-aggregate under long-term application of high amount of organic and combined with chemical fertilizer. The contribution rate of organic carbon in other treatments was higher in macro-aggregates than in micro-aggregates.【Conclusion】There were no significant effect for distribution and organic carbon content in aggregates under long-term chemical fertilization. The proportion of macro-aggregates and the stability of soil aggregates were reduced significantly under high amount of organic fertilizer and combination of organic and chemical fertilizer. The content of organic carbon in the aggregates was increased significantly under long-term application of organic fertilizer. The contribution rate of organic carbon in macro-aggregates was reduced significantly under high amount of organic fertilizer and combined with chemical fertilizer. The micro-aggregate was the dominant aggregate size of the organic carbon contribution rate.

Key words: long-term fertilization, black soil, water stable aggregates, content of organic carbon, contribution rate of organic carbon

XiuZhi ZHANG,Qiang LI,HongJun GAO,Chang PENG,Ping ZHU,Qiang GAO. Effects of Long-Term Fertilization on the Stability of Black Soil Water Stable Aggregates and the Distribution of Organic Carbon[J].Scientia Agricultura Sinica, 2020, 53(6): 1214-1223.

Figures/Tables 6

Table 1

Table 2

Table 3

Fig. 1

Fig. 2

Table 4

References 39

[1]	SHRESTHA B M, SINGH B R, SITAULA B K, BAJRACHARYA R M . Soil aggregate- and particle-associated organic carbon under different land uses in Nepal. Soil Science Society of America Journal, 2007,71(4):1194-1203.
[2]	EYNARD A, SCHUMACHER T, LINDSTROM M, MALO D . Effects of agricultural management systems on soil organic carbon in aggregates of Ustolls and Usterts. Soil and Tillage Research, 2005,81(2):253-263.
[3]	李小刚 . 甘肃景电灌区土壤团聚体特征研究. 土壤学报, 2000,37(2):263-270.
	LI X G . The characteristics of soil aggregate in Jingtai electric- irrigating area of Gansu. Acta Pedologica Sinica, 2000,37(2):263-270. (in Chinese)
[4]	耿瑞霖, 郁红艳, 丁维新, 蔡祖聪 . 有机无机肥长期施用对潮土团聚体及其有机碳含量的影响. 土壤, 2010,42(6):908-914.
	GENG R L, YU H Y, DING W X, CAI Z C . Effects of long-term application of organic manure and chemical fertilizers on organic carbon in aggregates of a sandy loam. Soils, 2010,42(6):908-914. (in Chinese)
[5]	曾希柏, 柴彦君, 俄胜哲, 车宗贤, 黄涛, 王亚男, 苏世鸣, 白玲玉 . 长期施肥对灌漠土团聚体及其稳定性的影响. 土壤通报, 2014,45(4):783-788.
	ZENG X B, CHAI Y J, E S Z, CHE Z X, HUANG T, WANG Y N, SU S M, BAI L Y . Effects of long-term fertilization on soil aggregate and its stability in irrigated desert soil of China. Chinese Journal of Soil Science, 2014,45(4):783-788. (in Chinese)
[6]	WANG W, CHEN W C, WANG K R, XIE X L, YIN C M, CHEN A L . Effects of long-term fertilization on the distribution of carbon, nitrogen and phosphorus in water-stable aggregates in paddy soil. Agricultural Sciences in China, 2011,10(12):1932-1940.
[7]	徐江兵, 李成亮, 何园球, 王艳玲, 刘晓利 . 不同施肥处理对旱地红壤团聚体中有机碳含量及其组分的影响. 土壤学报, 2007,44(4):675-682.
	XU J B, LI C L, HE Y Q, WANG Y L, LIU X L . Effect of fertilization on organic carbon content and fractionation of aggregates in upland red soil. Acta Pedologica Sinica, 2007,44(4):675-682. (in Chinese)
[8]	张久明, 迟凤琴, 韩锦泽, 周宝库, 匡恩俊 . 长期不同施肥黑土团聚体有机碳分布特征. 土壤与作物, 2017,6(1):49-54.
	ZHANG J M, CHI F Q, HAN J Z, ZHOU B K, KUANG E J . SOC distribution characteristics of mollisols aggregates in different long-term fertilization systems. Soils and Crops, 2017,6(1):49-54. (in Chinese)
[9]	何瑞清, 王百群, 张燕, 王蕊 . 长期施用化肥条件下塿土团聚体中有机碳与养分分布. 水土保持学报, 2016,36(6):347-351.
	HE R Q, WANG B Q, ZHANG Y, WANG R . Distribution of organic carbon and nutrients in water stable aggregates of lou soil under long-term application of chemical fertilizer. Journal of Soil and Water Conservation, 2016,36(6):347-351. (in Chinese)
[10]	王仁杰, 强久次仁, 薛彦飞, 张树兰, 杨学云 . 长期有机无机肥配施改变了塿土团聚体及其有机和无机碳分布. 中国农业科学, 2015,48(23):4678-4689.
	WANG R J, QIANGJIU C R, XUE Y F, ZHANG S L, YANG X Y . Effect of long-term organic-manure combined with chemical fertilizers on aggregate sizes distribution and its organic and inorganic carbon on a tier soil. Scientia Agricultura Sinica, 2015,48(23):4678-4689. (in Chinese)
[11]	苏慧清, 韩晓日, 杨劲峰, 罗培宇, 戴健, 杨明超, 何蕊 . 长期施肥棕壤团聚体分布及其碳氮含量变化. 植物营养与肥料学报, 2017,23(4):924-932.
	SU H Q, HAN X R, YANG J F, LUO P Y, DAI J, YANG M C, HE R . Effect of long-term fertilization on distribution of aggregates and organic carbon and total nitrogen contents in a brown soil. Journal of Plant Nutrition and Fertilizers, 2017,23(4):924-932. (in Chinese)
[12]	中国科学院南京土壤研究所土壤物理研究室. 土壤物理性质测定法. 北京: 科学出版社 1978: 77-88.
	Department of Soil Physics, Institute of Soil Science, Chinese Academy of Sciences. Determination of Soil Physical Properties. Beijing: Science Press, 1978: 77-88. (in Chinese)
[13]	鲍士旦 . 土壤农化分析. 北京: 中国农业出版社 2000.
	BAO S D . Soil and Agrochemical Analysis. Beijing: China Agricultural Press, 2000. (in Chinese)
[14]	周虎, 吕贻忠, 杨志臣, 李保国 . 保护性耕作对华北平原土壤团聚体特征的影响. 中国农业科学, 2007,40(9):1973-1979.
	ZHOU H, LÜ Y Z, YANG Z C, LI B G . Effects of conservation tillage on soil aggregates in Huabei plain, China. Scientia Agricultura Sinica, 2007,40(9):1973-1979. (in Chinese)
[15]	陈山, 杨峰, 林杉, 柳淑蓉, 汤水荣, 蔡崇法, 胡荣桂 . 土地利用方式对红壤团聚体稳定性的影响. 水土保持学报, 2012,26(5):211-216.
	CHEN S, YANG F, LIN S, LIU S R, TANG S R, CAI C F, HU G R . Impact of land use patterns on stability of soil aggregates in red soil region of south China. Journal of Soil and Water Conservation, 2012,26(5):211-216. (in Chinese)
[16]	杨培岭, 罗远培, 石元春 . 用粒径的重量分布表征的土壤分形特征. 科学通报, 1993,38(20):1896-1899.
	YANG P L, LUO Y P, SHI Y C . Fractal features of soils characterized by weight distribution of particle size. Chinese Science Bulletin, 1993,38(20):1896-1899. (in Chinese)
[17]	李玮, 郑子成, 李廷轩, 刘敏英 . 不同植茶年限土壤团聚体及其有机碳分布特征. 生态学报, 2014,34(21):6326-6336.
	LI W, ZHENG Z C, LI T X, LIU M Y . Distribution characteristics of soil aggregates and its organic carbon in different tea plantation age. Acta Ecologica Sinica, 2014,34(21):6326-6336. (in Chinese)
[18]	梁尧, 苑亚茹, 韩晓增, 李禄军, 邹文秀, 任军, 李刚 . 化肥配施不同剂量有机肥对黑土团聚体中有机碳与腐殖酸分布的影响. 植物营养与肥料学报, 2016,22(6):1586-1594.
	LIANG Y, YUAN Y R, HAN X Z, LI L J, ZOU W X, REN J, LI G . Distribution of organic carbon and humic acids in aggregates of Mollisol as affected by amendments with different rates of organic manure plus mineral fertilizer. Journal of Plant Nutrition and Fertilizers, 2016,22(6):1586-1594. (in Chinese)
[19]	MAJUMDER B, RUEHLMANN J, KUZYAKOV Y . Effects of aggregation processes on distribution of aggregate size fractions and organic C content of a long-term fertilized soil. European Journal of Soil Biology, 2010,46(6):365-370.
[20]	华瑞, 徐学选, 张少妮, 赵传普 . 不同退耕年限林草地土壤颗粒分形特征研究. 水土保持学报, 2016,30(4):206-209.
	HUA R, XU X X, ZHANG S N, ZHAO C P . The research of soil particle fractal characteristics of forestland and grassland with different restoration years. Journal of Soil and Water Conservation, 2016,30(4):206-209. (in Chinese)
[21]	孙家兴, 赵雨森, 辛颖, 张军 . 黑土区杨树农田防护林土壤团聚体的稳定性. 水土保持学报, 2018,38(3):66-73.
	SUN J X, ZHAO Y S, XIN Y, ZHANG J . Soil aggregate stability of poplar farmland shelter belts in black soil region. Journal of Soil and Water Conservation, 2018,38(3):66-73. (in Chinese)
[22]	祁迎春, 王益权, 刘军, 于雄胜, 周彩景 . 不同土地利用方式土壤团聚体组成及几种团聚体稳定性指标的比较. 农业工程学报, 2011,27(1):340-347.
	QI Y C, WANG Y Q, LIU J, YU X S, ZHOU C J . Comparative study on composition of soil aggregates with different land use patterns and several kinds of soil aggregate stability index. Transactions of the CSAE, 2011,27(1):340-347. (in Chinese)
[23]	XIE H T, LI J W, ZHANG B, WANG L F, WANG J K, HE H B, ZHANG X D . Long-term manure amendments reduced soil aggregate stability via redistribution of the glomalin-related soil protein in macroaggregates. Scientific Report, 2015,5:1-8.
[24]	HAYNES R J, NAIDU R . Influence of lime, fertilizer and manure applications on soil organic matter content and soil physical conditions: a review. Nutrient Cycling in Agroecosystems, 1998,51(2):123-137.
[25]	冷延慧, 汪景宽, 李双异 . 长期施肥对黑土团聚体分布和碳储量变化的影响. 生态学杂志, 2008,27(12):2171-2177.
	LENG Y H, WANG J K, LI S Y . Effects of long-term fertilization on aggregates size distribution and carbon stock in black soil. Chinese Journal of Ecology, 2008,27(12):2171-2177. (in Chinese)
[26]	WHALEN J K, CHANG C . Macroaggregate characteristics in cultivated soils after 25 annual manure applications. Soil Science Society of America Journal, 2002,66(5):1637-1647.
[27]	BHATTACHARYYA R, PRAKASH V, KUNDU S, SRIVASTVA A K, GUPTA H S, MITRA S . Long term eﬀects of fertilization on carbon and nitrogen sequestration and aggregate associated carbon and nitrogen in the Indian sub-Himalayas. Nutrient Cycling in Agroecosystems, 2010,86(1):1-16.
[28]	CHEN Y, ZHANG X D, HE H B, XIE H T, YAN Y, ZHU P, REN J, WANG L C . Carbon and nitrogen pools in different aggregates of a Chinese Mollisol as inﬂuenced by long-term fertilization. Journal of Soils and Sediments, 2010,10(6):1018-1026.
[29]	TRIPATHI R, NAYAK A K, BHATTACHARYYA P, SHUKLA A K, SHAHID M, RAJA R, PANDA B B, MOHANTY S, KUMAR A, THILAGAM V K . Soil aggregation and distribution of carbon and nitrogen in different fractions after 41 years long-term fertilizer experiment in tropical rice-rice system. Geoderma, 2014,213:280-286.
[30]	蔡岸冬, 张文菊, 杨品品, 韩天富, 徐明岗 . 基于Meta-Analysis 研究施肥对中国农田土壤有机碳及其组分的影响. 中国农业科学, 2015,48(15):2995-3004.
	CAI A D, ZHANG W J, YANG P P, HAN T F, XU M G . Effect degree of fertilization practices on soil organic carbon and fraction of croplands in China-Based on Meta-Analysis. Scientia Agricultura Scinica, 2015,48(15):2995-3004. (in Chinese)
[31]	何亚婷 . 长期施肥下我国农田土壤有机碳组分和结构特征[D]. 北京: 中国农业科学院, 2015.
	HE Y T . Characteristics of soil organic carbon fraction and chemical composition under long-term fertilization in upland soil of China[D]. Beijing: Chinese Academy of Agricultural Sciences, 2015. (in Chinese)
[32]	SONG Z W, ZHU P, GAO H J, PENG C, DENG A X, ZHANG C Y, MANNAF M A, ISLAM M N, ZHANG W J . Effects of long-term fertilization on soil organic carbon content and aggregate composition under continuous maize cropping in Northeast China. Journal of Agricultural Science, 2015,153:236-244.
[33]	XIE H T, LI J W, ZHU P, PENG C, WANG J K, HE H B, ZHANG X D . Long-term manure amendments enhance neutral sugar accumulation in bulk soil and particulate organic matter in a Mollisol. Soil Biology & Biochemistry, 2014,78:45-53.
[34]	GREEN V S, CAVIGELLI M A, DAO T H, FLANAGAN D C . Soil physical properties and aggregate-associated C N and P distributions in organic and conventional cropping systems. Soil Science, 2005,170(10):822-831.
[35]	李辉信, 袁颖红, 黄欠如, 胡锋, 潘根兴 . 不同施肥处理对红壤水稻土团聚体有机碳分布的影响. 土壤学报, 2006,43(3):422-429.
	LI H X, YUAN Y H, HUANG Q R, HU F, PAN G X . Effects of fertilization on soil organic carbon distribution in various aggregates of red paddy soil. Acta Pedologica Sinica, 2006,43(3):422-429. (in Chinese)
[36]	高会议, 郭胜利, 刘文兆, 车升国, 李淼 . 不同施肥处理对黑垆土各粒级团聚体中有机碳含量分布的影响. 土壤学报, 2010,47(5):931-938.
	GAO H Y, GUO S L, LIU W Z, CHE S G, LI M . Effect of fertilization on organic carbon distribution in various fractions of aggregates in caliche soils. Acta Pedologica Sinica, 2010,47(5):931-938. (in Chinese)
[37]	向艳文, 郑圣先, 廖育林, 鲁艳红, 谢坚, 聂军 . 长期施肥对红壤水稻土水稳性团聚体有机碳、氮分布与储量的影响. 中国农业科学, 2009,42(7):2415-2424.
	XIANG Y W, ZHENG S X, LIAO Y L, LU Y H, XIE J, NIE J . Effects of long-term fertilization on distribution and storage of organic carbon and nitrogen in water-stable aggregates of red paddy soil. Scientia Agricultura Sinica, 2009,42(7):2415-2424. (in Chinese)
[38]	陆太伟, 蔡岸冬, 徐明岗, 高强, 孙楠, 张文菊 . 施用有机肥提升不同土壤团聚体有机碳含量的差异性. 农业环境科学学报, 2018,37(10):2183-2193.
	LU T W, CAI A D, XU M G, GAO Q, SUN N, ZHANG W J . Variation in sequestration of organic carbon associated with differently sized aggregates after organic manure application. Journal of Agro- Environment Science, 2018,37(10):2183-2193. (in Chinese)
[39]	李文军, 杨基峰, 彭保发, 崔京珍 . 施肥对洞庭湖平原水稻土团聚体特征及其有机碳分布的影响. 中国农业科学, 2014,47(20):4007-4015.
	LI W J, YANG J F, PENG B F, CUI J Z . Effects of fertilization on aggregate characteristics and organic carbon distribution in a paddy soil in Dongting Lake Plain of China. Scientia Agricultura Sinica, 2014,47(20):4007-4015. (in Chinese)

Related Articles 15

[1]	LI XingYu, HUANG Rong, XIAN YiMing, TIAN JiaoJiao, MA XiaoJin, YANG QiaoXi, LI Bing, WANG ChangQuan. Characteristics of Organic Carbon Fractions and Carbon Dioxide Emissions of Different Size Aggregates in Rice Field Soils in Response to Long-Term Fertilization [J]. Scientia Agricultura Sinica, 2026, 59(6): 1255-1271.
[2]	WEI YuanHui, YU YiHui, LI ZiJun, DING WenJie, TU WenLong, MAO YanLing. Effects of Long-Term Fertilization on Soil Organic Carbon Structure and Carbon-Fixing Bacterial Community Structure in Yellow-Mud Paddy Soil [J]. Scientia Agricultura Sinica, 2026, 59(5): 1020-1033.
[3]	LIU MengYang, LIU Jie, CHEN Xiang, WANG QingYun, LUO LaiChao, QI YongBo, TIAN Da, LI JinCai, CHAI RuShan. Effects of Long-Term Straw Return on Distribution of Aggregates and Phosphorus Fractions in Shajiang Black Soil [J]. Scientia Agricultura Sinica, 2026, 59(3): 575-588.
[4]	WANG RenZhuo, LI YueYing, HUANG ShaoMin, JIANG GuiYing, ZHANG Qi, LIU ChaoLin, YANG Jin, WANG MengRu, WANG BeiBei, LIU Fang, GUO DouDou, JIE XiaoLei, SONG Lian, LIU ShiLiang. Effects of Long-Term Combination of Organic and Inorganic Fertilizers on Bacterial Community Structure, Ecological Network, and Key Species in Fluvo-Aquic Soil [J]. Scientia Agricultura Sinica, 2026, 59(2): 354-367.
[5]	WANG BingJie, QIN ShiHan, LI DeCheng, HU WenYou, JIANG Jun, CHI FengQin, ZHANG Chao, ZHANG JiuMing, XU YingDe, WANG JingKuan. Spatial Distribution Pattern and Transfer Function Construction of Soil Bulk Density in Nenjiang City, Heilongjiang Province [J]. Scientia Agricultura Sinica, 2025, 58(9): 1791-1803.
[6]	BAI YuXin, LIU LingZhi, AN TingTing, LI ShuangYi, WANG JingKuan. Eeffects of Long-Term Fertilization on Bacterial Community Structure and Carbon Metabolic Functions in Brown Soil [J]. Scientia Agricultura Sinica, 2025, 58(8): 1579-1590.
[7]	WANG Zhao, ZHANG Bing, DONG SiQi, HU YuXi, QI ShuYu, FENG GuoZhong, GAO Qiang, ZHOU Xue. Effects of Long-Term Nitrogen Fertilizer Application on the Rhizosphere Microbial Community Structure and Function in Black Soil and Sandy Soil [J]. Scientia Agricultura Sinica, 2025, 58(3): 520-536.
[8]	MA HeXiao, GE GuoLong, ZHANG XiangQian, LU ZhanYuan, WANG ManXiu, RONG MeiRen, SHI JingJing, ZHANG DeJian, SUN XuePing. Effects of Different Crop Rotation Systems on Soil Readily Oxidized Organic Carbon and Carbon Pool Activity Differences [J]. Scientia Agricultura Sinica, 2025, 58(24): 5201-5215.
[9]	YUAN HuiLin, LI YaYing, GU WenJie, XU PeiZhi, LU YuSheng, SUN LiLi, ZHOU ChangMin, LI WanLing, QIU RongLiang. Characterization and Correlation Analysis of Soil Dissolved Organic Matter and Microbial Communities Under Long-Term Application of Fresh and Composted Manure [J]. Scientia Agricultura Sinica, 2025, 58(2): 307-325.
[10]	WU Yong, WEN Xue, WANG TianShu, HUANG YanYan, MENG YiLi, JIANG HongYu, BI LiDong, WU HuiJun, YAO ShuiHong. The Influence of Topographic Factors and Ridge Tillage Methods on Soil Nutrients and Fertility Index of Sloping Arable Land in the Black Soil Region [J]. Scientia Agricultura Sinica, 2025, 58(18): 3676-3689.
[11]	GUO DouDou, ZHANG KeKe, HUANG ShaoMin, SONG Xiao, ZHANG ShuiQing, YUE Ke, DING ShiJie, GUO TengFei. Effects of Long-Term Fertilization on Phosphorus Adsorption and Desorption Characteristics of Fluvo-Aquic Soils [J]. Scientia Agricultura Sinica, 2025, 58(14): 2805-2820.
[12]	LU Peng, FENG Jia, LI Li, YANG Li, YANG Lei, LÜ DeZhi, XUE YanFei. Phosphorus Fractions in Rhizosphere and Bulk Soil of Wheat and Their Availability Under Long-Term Fertilization [J]. Scientia Agricultura Sinica, 2025, 58(12): 2382-2396.
[13]	ZHANG Yang, GAO Yan, ZHANG Yan, HUANG DanDan, CHEN XueWen, ZHANG ShiXiu, LIANG AiZhen. Effects of Residue Return Methods on Nitrogen Mineralization and N-Cycling Functional Genes in Black Soil of Northeast China [J]. Scientia Agricultura Sinica, 2025, 58(10): 1958-1968.
[14]	DU JiaQi, ZHANG ZiWei, WANG RuoFei, LI Xing, GUO HongYan, YANG Shuo, FENG Cheng, HE TangQing, Giri Bhoopander, ZHANG XueLin. The Interactive Effects of Organic Fertilizer Substituting Chemical Fertilizers and Arbuscular Mycorrhizal Fungi on Soil Nitrous Oxide Emission in Shajiang Black Soil and Fluvo-Aquic Soil [J]. Scientia Agricultura Sinica, 2025, 58(1): 101-116.
[15]	HU DanDan, SONG HuiJie, DUAN YingHua, WU Yan, HU ZhiHhua, XU XiaoLin, ZHANG WenJu, HE XiaoLin, LIU KaiLou, SU Peng, HUANG QunZhao. Effects of Long-Term Fertilization on Nitrogen Surplus and Deficit and Soil Alkali-Hydrolyzed Nitrogen in Red Soil Double-Cropping Rice System [J]. Scientia Agricultura Sinica, 2024, 57(24): 4907-4918.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 0

No Suggested Reading articles found!

处理 Treatment	大团聚体Macro-aggregate			微团聚体Micro-aggregate
处理 Treatment	>2 mm	2-0.25 mm	总和Sum	0.25-0.053 mm	<0.053 mm	总和Sum
CK	18.6±1.5 a	50.5±4.9 a	69.1±4.3 a	21.8±3.3 c	9.1±1 c	30.9±4.3 c
NPK	16.4±1.1 ab	44.9±8.8 a	61.3±9.7 a	26.7±6.7 c	11.9±3.0 c	38.7±9.7 c
M₂	14.1±3.6 b	49.3±3.9 a	63.4±12.5a	22.5±3.7 c	14.1±3.8 bc	36.6±6.8 c
M₂NPK	5.3±1.5 c	41.2±3.2 ab	46.5±1.6 b	35.2±2.8 b	18.3±1.3 b	53.5±1.6 b
M₄	4.7±1.9 c	32.7±5.5 bc	37.4±6.4 bc	44.5±4.4 a	18.1±2.2 b	62.6±6.4 ab
M₄NPK	3.1±0.2 c	27.7±5.4 c	30.8±5.5 c	41.9±1.5 ab	27.3±4.3 a	69.2±5.5 a

处理 Treatment	平均重量直径MWD (mm)	几何平均直径GMD (mm)	分形维数 D	团聚体破坏率 PAD (%)
CK	0.98a	0.61a	2.37c	23.15c
NPK	0.88a	0.50a	2.44c	31.88c
M₂	0.88a	0.50a	2.47bc	30.08c
M₂NPK	0.63b	0.32b	2.56ab	47.98b
M₄	0.54bc	0.27b	2.57ab	55.64ab
M₄NPK	0.45c	0.21b	2.67a	63.15a

	>0.25 mm水稳性团聚体含量 Content of >0.25 mm aggregate	MWD	GMD	PAD	D
>0.25 mm水稳性团聚体含量 Content of >0.25 mm aggregate	1	0.985**	0.971**	-0.998**	-0.954**
MWD		1	0.987**	-0.985**	-0.960**
GMD			1	-0.968**	-0.972**
PAD				1	0.955**
D					1

处理 Treatment	大团聚体Macro-aggregate			微团聚体Micro-aggregate
处理 Treatment	>2 mm	2-0.25 mm	总和Sum	0.25-0.053 mm	<0.053 mm	总和Sum
CK	21.0 a	58.4 a	79.4 a	24.1 c	8.1 c	32.2 c
NPK	16.8 b	45.8 abc	62.6 b	25.9 c	10.0 bc	35.9 bc
M₂	15.0 b	49.2 ab	64.2 b	25.9 c	10.1 bc	36.0 bc
M₂NPK	6.2 c	46.9 abc	53.1 bc	34.7 b	14.6 b	49.4 ab
M₄	5.5 c	42.1 bc	47.6 cd	47.0 a	13.8 b	60.8 a
M₄NPK	4.5 c	34.7 c	39.2 d	42.6 ab	19.6 a	62.2 a

Effects of Long-Term Fertilization on the Stability of Black Soil Water Stable Aggregates and the Distribution of Organic Carbon

RichHTML

PDF