农业生态

水分对河西青贮玉米土壤化学计量比及稳态性的影响

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  • 1.甘肃农业大学林学院,甘肃 兰州 730070
    2.甘肃农业大学财经学院,甘肃 兰州 730070
谢明君(1995-),女,硕士研究生,研究方向为农地土壤环境化学. E-mail: 1793184186@qq.com

收稿日期: 2021-12-27

  修回日期: 2022-02-10

  网络出版日期: 2022-09-26

基金资助

甘肃省财政专项(GSCZZ-20160909);甘肃省高等学校产业支撑项目(2021CYZC-15);甘肃省重点研究发展计划(20YF8NA135)

Effects of water treatment on stoichiometric ratio and homeostasis of silage corn soil in Hexi

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  • 1. College of Forestry, Gansu Agricultural University, Lanzhou 730070, Gansu, China
    2. College of Finance and Economics, Gansu Agricultural University, Lanzhou 730070, Gansu, China

Received date: 2021-12-27

  Revised date: 2022-02-10

  Online published: 2022-09-26

摘要

为探究河西灌溉区农田生态系统土壤养分限制及其循环规律,明确不同水分处理下青贮玉米植株与土壤的稳态性特征,以甘肃省河西灌溉区W0(传统灌水)、W1(节水10%)、W2(节水20%)、W3(节水30%)4种灌水处理的青贮玉米为研究对象,分析不同灌水处理下土壤、植株有机碳(OC, Organic Carbon)、全氮(TN, Total Nitrogen)、全磷(TP, Total Phosphorus)含量及其生态化学计量特征变化和植株与土壤间的内稳性特征。结果表明:(1) 不同灌水处理下青贮玉米土壤OC、TN、TP含量均在0~10 cm土层达到最高值。(2) 4种灌水处理下,植株器官养分含量在W0灌水处理下显著升高;在0~30 cm土层土壤OC、TN、TP含量在W1灌水处理下最高,且TN、TP显著高于其余灌水处理6.66%~26.17%、4.67%~19.21%;随灌水量减少土壤及植株养分降低显著。(3) 土壤、植株C:N、C:P、N:P值变化范围分别为3.60~61.2、4.39~53.9、1.01~1.24,其中,土壤C:N值在各土层及不同灌水处理下较为稳定,叶片(11.9)、根(7.58)的N:P值均小于植株氮限制的阈值(14),说明植株生长受到氮元素的限制。(4) 4种灌水处理下,植株(根、叶片)OC、TP元素及其化学比值稳态性均呈现绝对稳定状态,但在W2处理下叶片N:P稳态性表现出敏感状态。可见,在河西灌溉区,节水10%不仅有利于青贮玉米土壤养分的存留及保持作物生长的稳定适应能力,也可达到节水目的,进而缓解水资源紧缺的现状。

本文引用格式

谢明君,李广,马维伟,刘帅楠,常海刚,杜佳囝,丁宁 . 水分对河西青贮玉米土壤化学计量比及稳态性的影响[J]. 干旱区研究, 2022 , 39(4) : 1312 -1321 . DOI: 10.13866/j.azr.2022.04.31

Abstract

A study was conducted using irrigation treatments and changes in soil and plant carbon (OC), nitrogen (TN), and phosphorus (TP) stoichiometry and homeostasis were investigated to explore the soil nutrient limitation in farmland ecosystems in the Hexi irrigation area. The following results are presented. (1) The OC, TN, and TP concentrations of silage maize soils under different irrigation treatments reached the highest values in 0-10 cm. (2) Among four irrigation treatments, the nutrient content of plant organs was the highest under W0 irrigation. However, at 0-30 cm soil layers, the values of soil OC, TN, and TP concentrations were the highest under W1 irrigation treatment (i.e., traditional irrigation), soil TN and TP contents were more than those under other irrigation treatments (6.66%-26.17% and 4.67%-19.21%, respectively), and the decrease in soil and plant nutrients was more significant than that in irrigation water amount. (3) The ranges of C:N, C:P, and N:P ratios in soil and plants were at 3.60-61.2, 4.39-53.9, and 1.01-1.24, respectively. Soil C:N ratios were relatively stable among three soil layers and different irrigation treatments. The N:P ratios of leaves (11.9) and roots (7.58) were less than the threshold of plant N limitation (14), indicating that plant growth was limited by N. (4) Among four irrigation treatments, corn OC and TP and their ratios remained stable. However, the leaf N:P homeostasis was more sensitive to W2 treatment (20% water-saving irrigation) than to W0 treatment. Thus, 10% water-saving treatment in the Hexi irrigation area might be beneficial to the retention of soil nutrients in silage corn and maintains the stable adaptability of crop growth, realizing the purpose of water-saving and alleviating the current water scarcity situation.

参考文献

[1] 张娟, 李广, 袁建钰, 等. 水氮调控对旱作春小麦土壤、叶片养分含量的影响[J]. 干旱区研究, 2021, 38(6): 1750-1759.
[1] [Zhang Juan, Li Guang, Yuan Jianyu, et al. Effects of water and nitrogen regulation on soil and leaf stoichiometric characteristics of spring wheat in dry farming[J]. Arid Zone Research, 2021, 38(6): 1750-1759.]
[2] 朱平宗, 张光辉, 杨文利, 等. 红壤区林地浅沟不同植被类型土壤生态化学计量特征[J]. 水土保持研究, 2020, 27(6): 60-65.
[2] [Zhu Pingzong, Zhang Guanghui, Yang Wenli, et al. Characteristics of soil ecological stoichiometry of different vegetation types in ephemeral gully of forestland in red soil region[J]. Research of Soil and Water Conservation, 2020, 27(6): 60-65.]
[3] 陈绍民, 杨硕欢, 张保成, 等. 不同水肥条件下夏玉米/冬小麦农田生态系统碳平衡研究[J]. 农业机械学报, 2021, 52(5): 229-238.
[3] [Chen Shaomin, Yang Shuohuan, Zhang Baocheng, et al. Carbon balance in summer maize/winter wheat farmland ecosystem under different water and fertilizer conditions[J]. Transactions of the Chinese Society for Agricultural Machinery, 2021, 52(5): 229-238.]
[4] 吴建平, 韩新辉, 许亚东, 等. 黄土丘陵区不同植被类型下土壤与微生物C, N, P化学计量特征研究[J]. 草地学报, 2016, 24(4): 783-792.
[4] [Wu Jianping, Han Xinhui, Xu Yadong, et al. Ecological stoichometry of soil and soil microbial biomass C, N, P, under granin-to-green programe in loess hilly region[J]. Acta Agrestia Sinica, 2016, 24(4): 783-792.]
[5] 孙立青. 中国农田土壤碳氮磷化学计量特征的研究[D]. 北京: 中国地质大学, 2018.
[5] [Sun Liqing. The Study of Farmland Soil C:N:P Stoichiometry Characteristics in China[D]. Beijing: China University of Geosciences, 2018.]
[6] 原雅楠, 李正才, 王斌, 等. 不同林龄榧树根、枝、叶的C、N、P化学计量及内稳性特征[J]. 南京林业大学学报(自然科学版), 2021, 45(6): 135-142.
[6] [Yuan Ya’nan, Li Zhengcai, Wang Bin, et al. Ecological stoichiometry in leaves,branches and roots of Torreya grandis with different forest ages and its stoichiometric homoeostasis[J]. Journal of Nanjing Forestry University(Natural Sciences Edition), 2021, 45(6): 135-142.]
[7] Sun Z H, Han J C. Effect of soft rock amendment on soil hydraulic parameters and crop performance in Mu Us Sandy Land, China[J]. Field Crops Research, 2018, 222(1): 85-93.
[8] 梁川. 河西内陆区玉米膜下滴灌高效节水供水供肥模式研究[J]. 甘肃水利水电技术, 2021, 57(7): 28-31.
[8] [Liang Chuan. Study on the model of high-efficiency water-saving water supply and fertilizer supply for corn under mulch drip irrigation in the inland area of Hexi[J]. Gansu Water Resources and Hydropower Technology, 2021, 57(7): 28-31.]
[9] 张雨新, 张富仓, 邹海洋, 等. 生育期水分调控对河西地区滴灌春小麦生长和水分利用的影响[J]. 干旱地区农业研究, 2017, 35(1): 171-177.
[9] [Zhang Yuxin, Zhang Fucang, Zou Haiyang, et al. Effects of soil water regulation in growing period on spring wheat growth and water use in Hexi areas under drip irrigation[J]. Agricultural Research in the Arid Areas, 2017, 35(1): 171-177.]
[10] 柴仲平, 王雪梅, 孙霞, 等. 水氮耦合对红枣植株养分含量的影响[J]. 西南农业学报, 2010, 23(4): 1151-1154.
[10] [Chai Zhongping, Wang Xuemei, Sun Xia, et al. Effect of coupling of water and N on plant nutrient of Ziziphus jujube[J]. Southwest China Journal of Agricultural Sciences, 2010, 23(4): 1151-1154.]
[11] 王攀, 余海龙, 许艺馨, 等. 宁夏燃煤电厂周边土壤、植物和微生物生态化学计量特征及其影响因素[J]. 生态学报, 2021, 41(16): 6513-6524.
[11] [Wang Pan, Yu Hailong, Xu Yixin, et al. C:N:P ecological stoichiometry in soils, plants, microbes, and their influencing factors around the coal-fired power plants in Ningxia[J]. Acta Ecologica Sinica, 2021, 41(16): 6513-6524.]
[12] 王虎兵, 曹红霞, 郝舒雪. 温室番茄植株养分和光合对水肥耦合的响应及其与产量关系[J]. 中国农业科学, 2019, 52(10): 1761-1771.
[12] [Wang Hubing, Cao Hongxia, Hao Shuxue. Responses of plant nutrient and photosynthesis in greenhouse tomato to water-fertilizer coupling and their relationship with yield[J]. Scientia Agricultura Sinica, 2019, 52(10): 1761-1771.]
[13] Mohannadi M, Shabanpour M, Mohannadi M H, et al. Characterizing spatial variability of soil textural fractions and fractal parameters derived from particle size distributions[J]. Pedosphere, 2019, 29(2): 224-234.
[14] 赵如梦, 张炳学, 王晓霞, 等. 黄土高原不同种植年限苜蓿草地土壤与植物化学计量特征[J]. 草业科学, 2019, 36(5): 1189-1199.
[14] [Zhao Rumeng, Zhang Bingxue, Wang Xiaoxia, et al. Ecological stoichiometry characteristics of soil and plant of alfalfa with different growing years on the Loess Plateau[J]. Pratacultural Science, 2019, 36(5): 1189-1199.]
[15] 李菊, 张富仓, 王艳丽, 等. 灌水量和滴灌频率对甘肃省河西地区春玉米生长和水分利用的影响[J]. 中国农业大学学报, 2021, 26(10): 8-20.
[15] [Li Ju, Zhang Fucang, Wang Yanli, et al. Effects of irrigation amount and dirp irrigation frequency on spring maize growth and water use in Hexi area of Gansu Province[J]. Journal of China Agricultural University, 2021, 26(10): 8-20.]
[16] 刘七军, 曲玮, 李昭楠, 等. 耕地细碎化对干旱绿洲区作物生产和农户收入影响效应调查分析——以甘肃省民乐县为例[J]. 干旱地区农业研究, 2011, 29(3): 191-198.
[16] [Liu Qijun, Qu Wei, Li Zhaonan, et al. A survey and analysis of the impacts of land fragmentation on crops production and farmers’ income in arid oasis regions: A case from Minle County of Gansu Province[J]. Agricultural Research in the Arid Areas, 2011, 29(3): 191-198.]
[17] Zhang G Q, Shen D P, Ming B, et al. Using irrigation intervals to optimize water-use efficiency and maize yield in Xinjiang, Northwest China[J]. The Crop Journal, 2019, 7(3): 322-334.
[18] 刘帅楠, 李广, 宋良翠, 等. 早播及耕作措施对黄土高原半干旱区春小麦土壤氮磷元素的影响[J]. 干旱区研究, 2021, 38(5): 1367-1375.
[18] [Liu Shuainan, Li Guang, Song Liangcui, et al. Effects of early sowing and tillage measures on nitrogen and phosphorus in the soil supporting spring wheat in the semi-arid area of the Loess Plateau[J]. Arid Zone Research, 2021, 38(5): 1367-1375.]
[19] 蒋宇新, 郑旭荣, 王振华. 滴灌时长对伊犁河流域土壤理化性质及作物产量的影响[J]. 干旱区研究, 2020, 37(3): 645-651.
[19] [Jiang Yuxin, Zheng Xurong, Wang Zhenhua. Effects of drip irrigation duration on soil physical and chemical properties and wheat yield in the Yili River Basin[J]. Arid Zone Research, 2020, 37(3): 645-651.]
[20] 邓健, 张丹, 张伟, 等. 黄土丘陵区刺槐叶片-土壤-微生物碳氮磷化学计量学及其稳态性特征[J]. 生态学报, 2019, 39(15): 5527-5535.
[20] [Deng Jian, Zhang Dan, Zhang Wei, et al. Carbon, nitrogen, and phosphorus stoichiometry and homeostasis characteristics of leaves, soil, and microbial biomass of Robinia pseudoacacia forests in the loess hilly region of China[J]. Acta Ecologica Sinica, 2019, 39(15): 5527-5535.]
[21] 王建程. 水分胁迫对玉米生理生态特性影响研究[D]. 太原: 山西农业大学, 2004.
[21] [Wang Jiancheng. Effect of Water Stress on the Physiological and Ecological Characteristics of Maize Abstract[D]. Taiyuan: Shanxi Agricultural University, 2004.]
[22] 江叶枫, 叶英聪, 郭熙, 等. 江西省耕地土壤氮磷生态化学计量空间变异特征及其影响因素[J]. 土壤学报, 2017, 54(6): 1527-1539.
[22] [Jiang Yefeng, Ye Yingcong, Guo Xi, et al. Spatial variability of ecological stoichiometry of soil nitrogen and phosphorus in farmlands of Jiangxi Province and its influencing factors[J]. Acta Pedologica Sinica, 2017, 54(6): 1527-1539.]
[23] 刘帅楠, 李广, 杨传杰, 等. 植被类型对黄土丘陵区土壤碳氮磷化学计量特征的季节变异[J]. 水土保持学报, 2021, 35(6): 343-349, 360.
[23] [Liu Shuainan, Li Guang, Yang Chuanjie, et al. Seasonal variation of soil carbon, nitrogen and phosphorus stoichometry under different vegetation types in loess hilly region[J]. Journal of Soil and Water Conservation, 2021, 35(6): 343-349, 360.]
[24] 娄泊远, 王永东, 闫晋升, 等. 亚寒带荒漠草原不同树种人工林土壤生态化学计量特征[J]. 干旱区研究, 2021, 38(5): 1385-1392.
[24] [Lou Boyuan, Wang Yongdong, Yan Jinsheng, et al. Characteristics of soil ecological stoichiometry of different tree spcies in sub-frigid desert steppe[J]. Arid Zone Research, 2021, 38(2): 1385-1392.]
[25] 温晨, 杨智姣, 杨磊, 等. 半干旱黄土小流域不同植被类型植物与土壤生态化学计量特征[J]. 生态学报, 2021, 41(5): 1824-1834.
[25] [Wen Chen, Yang Zhijiao, Yang Lei, et al. Ecological stoichiometry characteristics of plants and soil under different vegetation types in the semi-arid loess small watershed[J]. Acta Ecologica Sinica, 2021, 41(5): 1824-1834.]
[26] 蔡倩, 白伟, 郑家明, 等. 水分胁迫对春玉米光合特性及水分利用效率的影响[J]. 辽宁农业科学, 2021, 21(5): 1-6.
[26] [Cai Qian, Bai Wei, Zheng Jiaming, et al. Effect of water stress on photosynthetic characteristics and water use efficiency of spring maize[J]. Liaoning Agricultural Sciences, 2021, 21(5): 1-6.]
[27] 宁志英, 李玉霖, 杨红玲, 等. 科尔沁沙地优势固沙灌木叶片氮磷化学计量内稳性[J]. 植物生态学报, 2019, 43(1): 46-54.
[27] [Ning Zhiying, Li Yulin, Yang Hongling, et al. Nitrogen and phosphorus stoichiometric homoeostasis in leaves of dominant sand-fixing shrubs in Horqin Sandy Land, China[J]. Chinese Journal of Plant Ecology, 2019, 43(1): 46-54.]
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