入侵毛竹皆伐对亚热带森林土壤微生物生物量和酶活性的影响

doi:10.13287/j.1001-9332.202205.015

应用生态学报 ›› 2022, Vol. 33 ›› Issue (5): 1233-1239.doi: 10.13287/j.1001-9332.202205.015

入侵毛竹皆伐对亚热带森林土壤微生物生物量和酶活性的影响

汪亚芳^1,2, 刘宗悦³, 张宝刚^1,2*, 余树全³, 蔡延江^1,2

¹浙江农林大学环境与资源学院, 杭州 311300;
²浙江省森林生态系统碳循环与固碳减排重点实验室, 杭州 311300;
³浙江农林大学林业与生物技术学院, 杭州 311300

收稿日期:2021-08-28 接受日期:2022-02-28 出版日期:2022-05-15 发布日期:2022-11-15
通讯作者: * E-mail: baogang@zafu.edu.cn
作者简介:汪亚芳, 女, 1995年生, 硕士研究生。主要从事森林土壤微生物与养分循环研究。E-mail: wangyafang@stu.zafu.edu.cn
基金资助:
国家自然科学基金项目(42007028)资助。

Effects of the removal of invasive Moso bamboo on soil microbial biomass and enzyme activities in subtropical forests

WANG Ya-fang^1,2, LIU Zong-yue³, ZHANG Bao-gang^1,2*, YU Shu-quan³, CAI Yan-jiang^1,2

¹College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou 311300, China;
²Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Hangzhou 311300, China;
³College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China

Received:2021-08-28 Accepted:2022-02-28 Online:2022-05-15 Published:2022-11-15

摘要/Abstract

摘要： 去除入侵植物是恢复入侵地生态系统的首要步骤。本文研究了天目山毛竹纯林(完全入侵)、入侵毛竹皆伐林(皆伐后经过5年自然更新)和常绿阔叶林(未入侵)的土壤微生物生物量及多种土壤酶活性特征。结果表明: 与毛竹纯林相比,入侵毛竹皆伐林土壤有机碳(SOC)、硝态氮、有效磷和速效钾含量显著升高;土壤微生物生物量碳(MBC)和磷(MBP)显著升高,而土壤微生物生物量氮(MBN)显著降低;α-葡萄糖苷酶(AG)、β-葡萄糖苷酶(BG)、亮氨酸氨基肽酶(LAP)和酚氧化酶(POX)活性显著升高,而纤维二糖水解酶(CBH)、β-N-乙酰-氨基葡萄糖苷酶(NAG)、酸性磷酸酶(ACP)和过氧化物酶(PER)活性未发生显著改变。土壤AG、BG和LAP活性与SOC和MBC呈显著正相关;POX活性与硝态氮含量呈显著正相关。此外,入侵毛竹皆伐林土壤MBC、MBN和MBP及AG、BG、NAG、LAP和ACP活性均显著高于常绿阔叶林。综上,入侵毛竹皆伐促进了森林土壤养分含量、微生物生物量和酶活性的提高,是恢复入侵地森林土壤质量的有效措施,研究结果可为亚热带森林毛竹入侵治理提供科学依据。

关键词: 入侵植物去除, 毛竹, 天目山, 微生物生物量, 胞外酶活性

Abstract: Removal of invasive plant species is the first step to restoring the invaded ecosystems. The soil microbial biomass and extracellular enzyme activities were measured in Moso bamboo (Phyllostachys edulis) pure forest (completely invasion), invasive P. edulis removal forest (secondary succession 5 years after clear cutting), and the evergreen broadleaved forest (no invasion) in Tianmu Mountain. The results showed that compared with P. edulis pure forest, invasive P. edulis removal significantly increased the contents of soil organic carbon (SOC), nitrate nitrogen, available phosphorus and potassium, as well as microbial biomass carbon (MBC) and microbial biomass phosphorus (MBP), while significantly decreased microbial biomass nitrogen (MBN). The activities of α-glucosidase (AG), β-glucosidase (BG), leucine aminopeptidase (LAP) and phenol oxidase (POX) in the forest with removal of invasive P. edulis were significantly higher than those in P. edulis pure forest, while invasive P. edulis removal did not change the activities of cellodisaccharide hydrolase (CBH), β-N-acetyl-glucosaminopeptidase (NAG), acid phosphatase (ACP) and peroxidase (PER). Furthermore, the activities of AG, BG and LAP were positively correlated with SOC and MBC, while the increase in POX activity was positively correlated with soil nitrate content. In addition, MBC, MBN and MBP, and activities of AG, BG, NAG, LAP and ACP in P. edulis removal forest forest were significantly higher than those in evergreen broadleaved forests. Taken together, the removal of invasive P. edulis could increase soil nutrient contents, microbial biomass and extracellular enzyme activities, thus could be considered as an effective way to restore the invaded forests. Our results provide important theoretical basis for controlling P. edulis invasion in subtropical forests.

Key words: invasive plant removal, Phyllostachys edulis, Tianmu Mountain, microbial biomass, extracellular enzyme activity

汪亚芳, 刘宗悦, 张宝刚, 余树全, 蔡延江. 入侵毛竹皆伐对亚热带森林土壤微生物生物量和酶活性的影响[J]. 应用生态学报, 2022, 33(5): 1233-1239.

WANG Ya-fang, LIU Zong-yue, ZHANG Bao-gang, YU Shu-quan, CAI Yan-jiang. Effects of the removal of invasive Moso bamboo on soil microbial biomass and enzyme activities in subtropical forests[J]. Chinese Journal of Applied Ecology, 2022, 33(5): 1233-1239.

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入侵毛竹皆伐对亚热带森林土壤微生物生物量和酶活性的影响

Effects of the removal of invasive Moso bamboo on soil microbial biomass and enzyme activities in subtropical forests

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