Effect of Diversity Mulching Model on Soil Enzyme Activities in the Loess Plateau Orchard

doi:10.11733/j.issn.1007-0435.2022.10.007

Acta Agrestia Sinica ›› 2022, Vol. 30 ›› Issue (10): 2581-2589.DOI: 10.11733/j.issn.1007-0435.2022.10.007

Effect of Diversity Mulching Model on Soil Enzyme Activities in the Loess Plateau Orchard

TIAN Yu-li¹, WU Xiao-ping¹, CHEN Xin-Fo², GUO Ya-ru¹, LI Ze-lin¹, NI Xin-hua¹, ZHANG Jia-tao¹, LI Hui-ke¹

1. College of Natural Resources and Environment, Northwest Agriculture and Forestry University, Yangling, Shannxi Province 712100, China;
2. Hydrology and Water Resources Survey Bureau of Qinghai Province, Xining, Qinghai Province 810009, China

Received:2022-02-20 Revised:2022-04-27 Published:2022-11-05

黄土高原果园不同覆盖模式对土壤酶活性的影响

田玉莉¹, 吴小苹¹, 陈欣佛², 郭亚茹¹, 李泽林¹, 倪新华¹, 张嘉涛¹, 李会科¹

1. 西北农林科技大学资源环境学院, 陕西杨凌 712100;
2. 青海省水文水资源测报中心, 青海西宁 810009

通讯作者: 李会科,E-mail:lihuike@nwafu.edu.cn
作者简介:田玉莉(1997-),女,汉族,四川德阳人,硕士研究生,主要从事生态环境工程研究,E-mail:1849664657@qq.com
基金资助:
果园地力提升及有机替代化肥减肥增效关键技术研究与示范(K3300220205)资助

Abstract

Abstract: To provide a theoretical basis for the evaluation of soil quality and the extension of mulching technology in the orchard,this study investigated the change characteristics of soil absolute enzyme activity and specific enzyme activity and related influencing factors under different mulching models. Compared with conventional tillage (CT),characteristics and influencing factors of seven soil enzyme activities including α-glucosidase,β-glucosidase,β-xylosidase,cellobiohydrolase,acetylglucosaminidase,leucine aminopeptidase and alkaline phosphatase under corn straw (CS),ryegrass (RE) and white clover (WC) were analyzed. The results showed that the orchard mulching increased the absolute enzyme activity of 0~20 cm and 20~40 cm soil in different degrees. The activity of AG,BG,BXYL,CBH,NAG and ALP showed CS>RE>WC>CT,while LAP showed WC>CS>RE>CT. The change of soil-specific enzyme activities per unit of organic carbon under different mulching treatments was consistent with the soil absolute enzyme activity. Redundancy analysis showed that soil enzyme activity was positively correlated with soil nutrient factors such as organic carbon,total nitrogen,total phosphorus,while negatively correlated with soil pH ralue and bulk density. Organic carbon,nitrate nitrogen,and ammonium nitrogen are the key environmental factors affecting soil absolute and specific enzyme activities.

Key words: Soil absolute enzyme activity, Soil specific enzyme activity, Mulching model, Loess Plateau, Apple orchard

摘要： 为探究土壤绝对酶活性和相对酶活性在果园不同覆盖模式下的变化特征及相关影响因素，为果园土壤质量评价提供理论依据，本试验以传统清耕(Conventional tillage,CT)为对照，研究秸秆(Corn stalk,CS)、黑麦草(Lolium perenne L. Ryrgrass,RE)和白三叶(Trifolium repens L. White clover，WC)处理下α-葡萄糖苷酶(α-glucosidase，AG)、β-葡萄糖苷酶(β-glucosidase，BG)、β-木糖苷酶(β-xylosidase，BXYL)、纤维二糖苷酶(Cellobiosidase,CBH)、乙酰氨基葡萄糖苷酶(Acetylglucosaminidase,NAG)、亮氨酸氨基肽酶(L-leucine aminopeptidase,LAP)和碱性磷酸酶(Alkaline phosphatase,ALP)变化特征及影响因素。结果表明，覆盖措施不同程度提高了0~40 cm各土层土壤绝对酶活性。AG，BG，BXYL，CBH，NAG和ALP活性表现为CS>RE>WC>CT，LAP表现为WC>CS>RE>CT。不同覆盖下土壤相对酶活性变化与绝对酶活性基本一致。冗余分析表明，土壤酶活性与有机碳、全氮、全磷等土壤理化因子含量正相关，而与pH值和容重负相关，有机碳、硝态氮和铵态氮含量是影响土壤酶活性的关键环境因素。

关键词: 土壤绝对酶活性, 土壤相对酶活性, 覆盖模式, 黄土高原, 苹果园

CLC Number:

S154.1

TIAN Yu-li, WU Xiao-ping, CHEN Xin-Fo, GUO Ya-ru, LI Ze-lin, NI Xin-hua, ZHANG Jia-tao, LI Hui-ke. Effect of Diversity Mulching Model on Soil Enzyme Activities in the Loess Plateau Orchard[J]. Acta Agrestia Sinica, 2022, 30(10): 2581-2589.

田玉莉, 吴小苹, 陈欣佛, 郭亚茹, 李泽林, 倪新华, 张嘉涛, 李会科. 黄土高原果园不同覆盖模式对土壤酶活性的影响[J]. 草地学报, 2022, 30(10): 2581-2589.

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Effect of Diversity Mulching Model on Soil Enzyme Activities in the Loess Plateau Orchard

黄土高原果园不同覆盖模式对土壤酶活性的影响

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