Effects of Native Forest Conversion on Soil Labile Organic Carbon and Enzyme Activity in Northwestern Hunan Province

Xiao Huacui; Li Xue; Sheng Hao; Zhang Lina; Luo Feixue; Zhou Ping

doi:10.13961/j.cnki.stbctb.20231013.001

您当前的位置：

首页 >

文章列表页 >

Effects of Native Forest Conversion on Soil Labile Organic Carbon and Enzyme Activity in Northwestern Hunan Province

- Effects of Native Forest Conversion on Soil Labile Organic Carbon and Enzyme Activity in Northwestern Hunan Province
- Bulletin of Soiland Water Conservation Vol. 43, Issue 5, Pages: 411-418(2023)
- 作者机构：
  
  1. 湖南农业大学资源学院,湖南,长沙,410128
  2. 中国科学院亚热带农业生态研究所, 亚热带农业生态过程重点实验室,湖南,长沙,410125
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.20231013.001
  CLC： S153;S718.55
- Published：2023
- 稿件说明：
移动端阅览
Xiao Huacui, Li Xue, Sheng Hao, et al. Effects of Native Forest Conversion on Soil Labile Organic Carbon and Enzyme Activity in Northwestern Hunan Province[J]. Bulletin of Soiland Water Conservation, 2023, 43(5): 411-418.
DOI：

Xiao Huacui, Li Xue, Sheng Hao, et al. Effects of Native Forest Conversion on Soil Labile Organic Carbon and Enzyme Activity in Northwestern Hunan Province[J]. Bulletin of Soiland Water Conservation, 2023, 43(5): 411-418. DOI： 10.13961/j.cnki.stbctb.20231013.001.

摘要

[目的] 了解土壤活性有机碳(SOC)组分和酶活性对天然林转换的响应，为预测区域土壤健康演变和环境变迁提供科学依据。[方法] 选取本底一致，利用历史清晰的天然常绿阔叶林以及由此转变而来的针叶人工林、果园、坡耕地和水田，应用物理、化学和生物化学分析技术，研究表土活性有机碳组分和酶活性对天然林转换的响应规律与差异。[结果] 天然林改为果园、坡耕地和水田后显著降低土壤有机碳、活性有机碳含量和酶活性，降幅分别为42%～67%，47%～88%和36%～89%。其中，以易氧化有机碳、微生物生物量碳含量和蔗糖酶活性的敏感性相对高于SOC敏感性，敏感地指示土壤有机碳库及活性的降低，易氧化有机碳更适宜推广应用。天然林改为人工林，土壤活性有机碳、酶活性的敏感性一般低于天然林改为果园、坡耕地，相对有利于土壤中活性有机碳库的保存。活性有机碳占总有机碳的比例由天然林改为人工林后显著降低，敏感地指示土壤碳库质量的下降。[结论] 天然林转换不仅导致土壤活性有机碳数量大幅减少，有机碳库的质量下降，与之相关的酶活性也降低；土壤有机碳的活性和酶活性的降低，指示天然林转换后土壤生物健康/质量的退化。

Abstract

[Objective] The response of soil labile organic carbon components and enzyme activities to natural forest conversion was analyzed in order to provide a scientific basis for predicting regional soil health evolution and environmental change. [Methods] A native evergreen broad-leaved forest and a converted conifer plantation

an orchard

a sloping tillage area

and a paddy with similar geographical background and clear land use history were studied. The responses of labile organic carbon fractions and enzyme activities in topsoil to native forest conversion were investigated using various physical

chemical

and biochemical techniques. [Results] The native forest conversion to an orchard

a sloping tillage area

and a paddy significantly reduced the soil organic carbon content

labile carbon fraction contents

and enzyme activities by 42%—67%

47%—88%

and 36%—89%

respectively. Notably

the readily oxidizable organic carbon

microbial biomass carbon

and invertase activity experienced the greatest reduction compared with the native forest conversion

sensitively indicating the reduction in soil organic carbon content and its lability. Readily oxidizable organic carbon was

therefore

considered to be a practical index. Reductions in soil labile organic carbon fractions and enzyme activities were lower for the conversion of native forest conversion to plantation than for the native forest conversion to orchard and sloping tillage area

showing the preservation capacity of soil labile carbon in the plantation. The ratio of labile organic carbon to total organic carbon in soil was significantly reduced after the native forest conversion to plantation

sensitively reflecting the reduction in soil carbon quality. [Conclusion] Native forest conversion led to substantial reductions in labile organic carbon quantity

carbon quality

and related enzyme activities in soil

suggesting a degradation of soil biological health and a decline in soil quality.

关键词

Keywords

references

Food and Agriculture Organization of the United Nations. Forestry Department. Global forest resources assessment 2020: Main report [R]. Rome: Food and Agriculture Organization of the United Nations, 2020.

Sheng Hao, Yang Yusheng, Yang Zhijie, et al. The dynamic response of soil respiration to land-use changes in subtropical China [J]. Global Change Biology, 2010,16(3):1107-1121.

Sheng Hao, Zhou Ping, Zhang Yangzhu, et al. Loss of labile organic carbon from subsoil due to land-use changes in Subtropical China [J]. Soil Biology and Biochemistry, 2015,88:148-157.

Beillouin D, Cardinael R, Berre D, et al. A global overview of studies about land management, land-use change, and climate change effects on soil organic carbon [J]. Global Change Biology, 2022,28(4):1690-1702.

Liptzin D, Norris C E, Cappellazzi S B, et al. An evaluation of carbon indicators of soil health in long-term agricultural experiments [J]. Soil Biology and Biochemistry, 2022,172:108708.

Bongiorno G, Bünemann E K, Oguejiofor C U, et al. Sensitivity of labile carbon fractions to tillage and organic matter management and their potential as comprehensive soil quality indicators across pedoclimatic conditions in Europe [J]. Ecological Indicators, 2019,99:38-50.

Duan Liangxia, Sheng Hao, Yuan Hong, et al. Land use conversion and lithology impacts soil aggregate stability in Subtropical China [J]. Geoderma, 2021,389:114953.

Pérez-Guzmán L, Phillips L A, Seuradge B J, et al. An evaluation of biological soil health indicators in four long-term continuous agroecosystems in Canada [J]. Agrosystems, Geosciences & Environment, 2021,4(2):e20164.

Liang Chao, Schimel J P, Jastrow J D. The importance of anabolism in microbial control over soil carbon storage [J]. Nature Microbiology, 2017,2:17105.

鲁如坤.土壤农业化学分析方法[M].北京:中国农业科技出版社,2000.

Janzen H H, Campbell C A, Brandt S A, et al. Light-fraction organic matter in soils from long-term crop rotations [J]. Soil Science Society of America Journal, 1992,56(6):1799-1806.

Cambardella C A, Elliott E T. Particulate soil organic-matter changes across a grassland cultivation sequence [J]. Soil Science Society of America Journal, 1992,56(3):777-783.

Blair G J, Lefroy R, Lisle L. Soil carbon fractions based on their degree of oxidation, and the development of a carbon management index for agricultural systems [J]. Australian Journal of Agricultural Research, 1995,46(7):1459.

关松荫.土壤酶及其研究法[M].北京:农业出版社,1986.

盛浩,李洁,周萍,等.土地利用变化对花岗岩红壤表土活性有机碳组分的影响[J].生态环境学报,2015,24(7):1098-1102.

胡雪寒,刘娟,姜培坤,等.亚热带森林转换对不同粒径土壤有机碳的影响[J].土壤学报,2018,55(6):1485-1493.

Fang Yunying, Singh B P, Farrell M, et al. Balanced nutrient stoichiometry of organic amendments enhances carbon priming in a poorly structured sodic subsoil [J]. Soil Biology and Biochemistry, 2020,145:107800.

Wang Qingkui, Xiao Fuming, He Tongxin, et al. Responses of labile soil organic carbon and enzyme activity in mineral soils to forest conversion in the subtropics [J]. Annals of Forest Science, 2013,70(6):579-587.

王斐,马锐豪,夏开,等.森林转换对土壤活性有机碳组分的影响[J].水土保持研究,2023,30(1):233-240.

Mujuru L, Gotora T, Velthorst E J, et al. Soil carbon and nitrogen sequestration over an age sequence of

Pinus patula

plantations in Zimbabwean Eastern Highlands [J]. Forest Ecology and Management, 2014,313:254-265.

Liu Yalong, Ge Tida, Zhu Zhenke, et al. Carbon input and allocation by rice into paddy soils: a review [J]. Soil Biology and Biochemistry, 2019,133:97-107.

章晓芳,郑生猛,夏银行,等.红壤丘陵区土壤有机碳组分对土地利用方式的响应特征[J].环境科学,2020,41(3):1466-1473.

Ramesh T, Bolan N S, Kirkham M B, et al. Soil organic carbon dynamics: impact of land use changes and management practices: a review [J]. Advances in Agronomy, 2019,156:1-107.

Padbhushan R, Kumar U, Sharma S, et al. Impact of land-use changes on soil properties and carbon pools in India: a meta-analysis [J]. Frontiers in Environmental Science, 2022,9:794866.

吴慧,赵志忠,吴丹.海南西部热带雨林次生林土壤易氧化有机碳分布特征及影响因素[J].广东农业科学,2022,49(6):74-80.

魏早强,罗珠珠,牛伊宁,等.土壤有机碳组分对土地利用方式响应的Meta分析[J].草业科学,2022,39(6):1115-1128.

周际海,郜茹茹,魏倩,等.旱地红壤不同土地利用方式对土壤酶活性及微生物多样性的影响差异[J].水土保持学报,2020,34(1):327-332.

邰继承,靳振江,崔立强,等.不同土地利用下湖北江汉平原湿地起源土壤有机碳组分的变化[J].水土保持学报,2011,25(6):124-128.

Waring B G, Weintraub S R, Sinsabaugh R L. Ecoenzymatic stoichiometry of microbial nutrient acquisition in tropical soils [J]. Biogeochemistry, 2014,117(1):101-113.

涂志华,周凌峰,黄艳萍,等.海南岛黎母山国家自然保护区热带云雾林土壤酶活性的根际效应[J].水土保持通报,2021,41(3):1-7.

Views

570

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of Different Revegetation Types on Soil Enzyme Activities in Different Aggregates Fractions in Loess Plateau

Spatiotemporal evolution and multi-scenario simulation of carbon storage in Pingxiang City， Jiangxi Province based on PLUS-InVEST model

Spatiotemporal variation characteristics of different grade precipitation in Jilin Province from 1960 to 2024

Impact of resource-exhausted city transformation on net ecosystem productivity——A case study of Xuzhou City， Jiangsu Province

Newly cultivated land changes and multi-scale detection of their driving mechanisms in western Jilin Province

Related Author

JI Xiuyun

LI Yuhua

Related Institution

Bureau of National Natural Reservation Area of Yunwu Mountains in Ningxia

⁰