Effects of Root Cutting and Organic Fertilizer Application on Aboveground Biomass and Soil Nutrients in the Mowing Ggrassland of Leymus chinensis Meadow

doi:10.11733/j.issn.1007-0435.2022.01.027

Acta Agrestia Sinica ›› 2022, Vol. 30 ›› Issue (1): 220-228.DOI: 10.11733/j.issn.1007-0435.2022.01.027

Effects of Root Cutting and Organic Fertilizer Application on Aboveground Biomass and Soil Nutrients in the Mowing Ggrassland of Leymus chinensis Meadow

ZHANG Chu¹, WANG Miao¹, ZHANG Yu¹, WANG Xu¹, CHEN Jin-qiang¹, LI Rui-qiang², DAI Jing-zhong³, BAI Yu-ting⁴, XIN Xiao-ping¹, WEI Zhi-jun⁵, CHENG Li⁶, ZHAO Man⁷, YAN Rui-rui¹

1. Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/ National Field Scientific Observation and Research Station of Hulunbuir Grassland Ecosystem in Inner Mongolia / National Soil Quality Hulunber Observation and Experimental Station, Beijing 100081, China;
2. Inner Mongolia Autonomous Region Environmental Online Monitoring Centre, Hohhot, Inner Mongolia 010055, China;
3. College of Agriculture and Forestry Engineering and Planning, Tongren University, Tongren, Guizhou Province 554300, China;
4. Binzhou University, Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou, Shandong Province 256603, China;
5. College of Ecology and Environment, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010019, China;
6. Institute of Hulunbuir Forestry and Grassland Science, Hailar, Inner Mongolia 021008, China;
7. Hulun Buir Nongken Sheltala Farm and Pasture Co., Ltd., Hulun Buir, Inner Mongolia 021012, China

Received:2021-06-08 Revised:2021-08-11 Published:2022-01-27

切根与施有机肥对羊草草甸草原打草场地上生物量与土壤养分的影响

张楚¹, 王淼¹, 张宇¹, 王旭¹, 陈金强¹, 李瑞强², 代景忠³, 白玉婷⁴, 辛晓平¹, 卫智军⁵, 程利⁶, 赵曼⁷, 闫瑞瑞¹

1. 中国农业科学院农业资源与农业区划研究所/内蒙古呼伦贝尔草原生态系统国家野外科学观测研究站/国家土壤质量呼伦贝尔观测实验站，北京 100081;
2. 内蒙古自治区环境在线监控中心, 内蒙古呼和浩特 010055;
3. 铜仁学院农林工程与规划学院，贵州铜仁 554300;
4. 滨州学院山东省黄河三角洲生态环境重点实验室，山东滨州 256603;
5. 内蒙古农业大学生态环境学院，内蒙古呼和浩特 010019;
6. 呼伦贝尔市林业和草原科学研究所，内蒙古海拉尔 021008;
7. 呼伦贝尔农垦谢尔塔拉农牧场有限公司，内蒙古呼伦贝尔 021012

通讯作者: 闫瑞瑞, E-mail: yanruirui@caas.cn
作者简介:张楚(1998-)，女，回族，山东枣庄人，硕士研究生，主要从事草地生态研究，E-mail: 18513128233@163.com
基金资助:
国家重点研发计划(2017YFE0104500，2016YFC0500601);农业科技创新联盟建设-农业基础性长期性科技工作(NAES037SQ18);国家自然基金面上项目(31971769);中央级公益性科研院所基本科研业务费专项(Y2020YJ19，1610132021016);呼伦贝尔市科技计划项目(YYYFHZ201903, 2021hzzx03)和财政部和农业农村部：国家现代农业产业技术体系资助

Abstract

Abstract: To investigate the effects of organic fertilizer application on aboveground biomass and soil carbon and nitrogen of beating grassland in Hulunbuir meadow steppe, vegetation and soil of natural mowing pasture in Leymus chinensis meadow steppe were taken as the research objects. We set five kinds of treatment: control group (CK), root-cutting (Q), root-cutting + low level organic fertilizer (QO1), root-cutting + medium level organic fertilizer (QO2) and root-cutting + high level organic fertilizer (QO3), so as to provide reference and theoretical basis for restoration and improvement of degraded grassland. The results showed that with the increase of fertilization level, the aboveground biomass of grassland vegetation was increased significantly (P < 0.05). The unit increase of aboveground biomass of community and Leymus chinensis, and the total income were increased with the increase of fertilization. Root cutting + medium level organic fertilizer treatment had the most significant effects on soil organic carbon, pH, total nitrogen and available phosphorus (P < 0.05). Soil total organic carbon and soil available phosphorus were significantly positively correlated with the aboveground biomass of the community (P < 0.01), and soil total nitrogen was significantly positively correlated with aboveground biomass of the community (P < 0.05).

Key words: Meadow grassland, Organic fertilizer, Aboveground biomass, Soil nutrients

摘要： 本试验以呼伦贝尔羊草(Leymus chinensis)草甸草原天然打草场为研究对象，设置五种处理：对照(CK)，切根(Q)，切根+低水平有机肥(QO1)，切根+中水平有机肥(QO2)和切根+高水平有机肥(QO3)，分析不同处理对天然打草场地上生物量与土壤养分的影响，为退化草地的恢复和改良提供参考和理论依据。结果表明：随着施肥水平的增加，草原植被地上生物量呈现显著上升趋势；群落及羊草的地上生物量的单位增加量和总收入随着施肥水平的增加而增加；切根+中水平有机肥处理对土壤有机碳含量、pH值、全氮含量、速效磷含量的影响最显著(P < 0.05)；土壤有机碳含量、土壤速效磷含量与群落地上生物量呈极显著正相关关系(P < 0.01)，土壤全氮含量与群落地上生物量呈显著正相关关系(P < 0.05)。

关键词: 草甸草原, 有机肥, 地上生物量, 土壤养分

CLC Number:

S963.91

ZHANG Chu, WANG Miao, ZHANG Yu, WANG Xu, CHEN Jin-qiang, LI Rui-qiang, DAI Jing-zhong, BAI Yu-ting, XIN Xiao-ping, WEI Zhi-jun, CHENG Li, ZHAO Man, YAN Rui-rui. Effects of Root Cutting and Organic Fertilizer Application on Aboveground Biomass and Soil Nutrients in the Mowing Ggrassland of Leymus chinensis Meadow[J]. Acta Agrestia Sinica, 2022, 30(1): 220-228.

张楚, 王淼, 张宇, 王旭, 陈金强, 李瑞强, 代景忠, 白玉婷, 辛晓平, 卫智军, 程利, 赵曼, 闫瑞瑞. 切根与施有机肥对羊草草甸草原打草场地上生物量与土壤养分的影响[J]. 草地学报, 2022, 30(1): 220-228.

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Effects of Root Cutting and Organic Fertilizer Application on Aboveground Biomass and Soil Nutrients in the Mowing Ggrassland of Leymus chinensis Meadow

切根与施有机肥对羊草草甸草原打草场地上生物量与土壤养分的影响

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[8]	CHEN Bai-jie, FAN Bo, WANG Xin-chuan, ZHANG Zhen-hua. Effects of Different Degradable Material Non-woven on the Soil Stoichiometric Characteristics of Carbon,Nitrogen and Phosphorus in Alpine Artificial Grassland [J]. Acta Agrestia Sinica, 2021, 29(12): 2752-2762.
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[11]	WANG Yue-hua, JIN Yu-xi, WANG Zhong-wu, HAN Guo-dong. Effects of Eight Years Enclosure on Plants and Soil of Desert Steppe in Inner Mongolia [J]. Acta Agrestia Sinica, 2021, 29(10): 2339-2345.
[12]	WANG Rui-feng, YAN Wei, SHI Feng-ling. Effects of Rhizobium,Nitrogen Application Rate and Frequency on Alfalfa Growth and Fiber Content [J]. Acta Agrestia Sinica, 2021, 29(10): 2372-2380.
[13]	Zaituniguli KUERBAN, Tuerxun TUERHONG, SHAN QIMIKE, WANG Hui, TU Zhen-dong, Aikebaier YILAHONG. Study on The Change of Soil Nutrient Content in The Growth Period of Sweet Sorghum under Different Fertilization [J]. Acta Agrestia Sinica, 2021, 29(1): 103-113.
[14]	ZHANG Jun, LIU Ju-hong, CAO Na, ZHANG Cai-qin. Time-lag Response of Aboveground Biomass Dynamic of Leymus chinensis in the Growing Season on Precipitation in Inner Mongolian Typical Grassland [J]. Acta Agrestia Sinica, 2020, 28(6): 1719-1725.
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