氮添加对滇中高原森林凋落物养分残留及其持水性的影响

肖文贤; 宋娅丽; 王克勤; 安文雄; 苏孟白

doi:10.13870/j.cnki.stbcxb.2023.03.041

您当前的位置：

首页 >

文章列表页 >

氮添加对滇中高原森林凋落物养分残留及其持水性的影响

更新时间：2025-03-12

- 氮添加对滇中高原森林凋落物养分残留及其持水性的影响
- Influence of Nitrogen Addition on Nutrient Residues and Water Holding Capacity of Forest Litter in Central Yunnan Plateau, China
- 水土保持学报 2023年37卷第3期页码：319-329
- 作者机构：
  
  1. 西南林业大学生态与环境学院,昆明,650224
  2. 国家林业和草原局云南玉溪森林生态系统国家定位观测研究站,昆明,650224
- 作者简介：
  
  [ "肖文贤(1991—),女,在读硕士研究生,主要从事森林凋落物对气候变化响应的研究。E-mail:845388187@qq.com" ]
- 基金信息：
  
  云南省教育厅科学研究基金项目(2022J0510);国家自然科学基金项目(30660037);云南省科技厅"三区"人才支持计划项目(90202101);云南省自然生态监测网络云南玉溪森林生态站运行项目(2022-YN-13);云南玉溪森林生态系统国家长期科研基地项目(2020132550)
- DOI：10.13870/j.cnki.stbcxb.2023.03.041
  中图分类号： S715
- 纸质出版：2023
- 稿件说明：
移动端阅览
肖文贤, 宋娅丽, 王克勤, 等. 氮添加对滇中高原森林凋落物养分残留及其持水性的影响[J]. 水土保持学报, 2023,37(3):319-329.

XIAO Wenxian, SONG Yali, WANG Keqin, et al. Influence of Nitrogen Addition on Nutrient Residues and Water Holding Capacity of Forest Litter in Central Yunnan Plateau, China[J]. 2023, 37(3): 319-329.
肖文贤, 宋娅丽, 王克勤, 等. 氮添加对滇中高原森林凋落物养分残留及其持水性的影响[J]. 水土保持学报, 2023,37(3):319-329. DOI： 10.13870/j.cnki.stbcxb.2023.03.041.

XIAO Wenxian, SONG Yali, WANG Keqin, et al. Influence of Nitrogen Addition on Nutrient Residues and Water Holding Capacity of Forest Litter in Central Yunnan Plateau, China[J]. 2023, 37(3): 319-329. DOI： 10.13870/j.cnki.stbcxb.2023.03.041.

摘要

为揭示森林生态系统养分循环和水分循环对氮沉降的响应机制

以滇中高原华山松(Pinus armandii)和云南松(Pinus yunnanensis)为研究对象

开展野外氮添加下凋落叶、枝原位分解研究试验

设置对照、低氮、中氮和高氮共4个处理

利用尼龙网袋法和室内浸泡法

探究凋落叶、枝养分元素残留率、持水量和持水率及吸水速率对氮添加的响应。结果表明:(1)随着分解时间的持续

2种林分凋落叶、枝碳(C)、氮(N)、磷(P)分别呈释放、富集—释放、富集过程

凋落叶C、N、P残留率显著小于凋落枝(p＜0.05);(2)凋落叶最大持水量和最大吸水速率显著大于凋落枝(p＜0.05)

分解24个月时

与CK相比

LN处理下2种林分凋落叶、枝C

华山松凋落叶N残留率降低1.98%~7.27%

10.79%

HN处理下2种林分凋落叶、枝C

华山松凋落叶、枝和云南松凋落枝N

华山松凋落枝P残留率则增加4.26%~9.08%

11.94%~44.51%

42.42%;(3)分解24个月时

与CK相比

LN、MN和HN处理华山松凋落叶、枝和云南松凋落叶最大持水量和最大吸水速率分别降低11.44%~25.24%

5.81%~32.23%

云南松凋落枝则增加15.48%~24.26%

17.97%~23.74%。 (4)2种林分凋落叶、枝持水量随浸泡时间延长而增加

而吸水速率则为降低

持水量与浸泡时间的关系均呈对数函数关系(m=a+bln t)

吸水速率与浸泡时间的关系呈幂函数关系(v=at-b)。(5)C与云南松凋落枝持水性呈正相关关系(p＜0.05)

N与华山松凋落枝、P与华山松和云南松凋落叶持水性呈负相关关系(p＜0.05)。综上

氮添加通过改变凋落物分解过程中C、N、P养分元素残留特征进而影响其持水性。

Abstract

In order to reveal the response mechanism of nutrient cycling and water cycling to nitrogen deposition in forest ecosystem

we conducted a study on a situ decomposition of leaf and twig litters of Pinus armandii forest and Pinus yunnanensis forest in the middle Yunnan Plateau. Four treatments were set up: control (N 0 g/ (m2·a)

CK)

low nitrogen (N 10 g/ (m2·a)

LN)

medium nitrogen (N 20 g/ (m2·a)

MN) and high nitrogen (N 25 g/ (m2·a)

HN). Nylon mesh bag method and laboratory soaking method were used. The response of nutrient element residual rate

water holding capacity

water holding rate and water absorption rate of leaf and twig litters to nitrogen addition were explored. The results showed that: (1) With the continuation of decomposition time

carbon

nitrogen and phosphorus content of leaf and twig litters in two types of forests showed the trends of release

enrichment-release and enrichment

respectively

and the residue rates of C

N and P in leaf litters were significantly lower than those in twig litters (p ＜ 0.05). (2) The maximum water holding capacity and water absorption rate of leaf litters were significantly higher than that of twig litters (p ＜ 0.05). After 24 months of decomposition

compared with CK

the C residual rates of leaf and twig litters in two types of forests

and the N residual rate of leaf litters in P. armandii forest under LN treatment were reduced by 1.98%~7.27% and 10.79%

respectively. The C residual rates of leaf and twig litters in two types of forests

and the N residual rate of leaf and twig litters in P. armandii forest and twig litters in P. yunnanensis forest

the P residual rate of twig litters in P. armandii forest under HN treatment increased by 4.26%~9.08%

11.94%~44.51% and 42.42%

respectively. (3) After 24 months of decomposition

compared with CK

the maximum water holding capacity and water absorption rate of leaf and twig litters in P. armandii forest and leaf litters in P. yunnanensis forest under LN

MN and HN treatments decreased by 11.44%~25.24% and 5.81%~32.23%

respectively; while twig litters in P. yunnanensis forest increased by 15.48%~24.26%

17.97%~23.74%

respectively. (4) The water capacity of leaf and twig litters in two types of forests increased with the extension of soaking time

but the water absorption rate decreased. The relationship between water capacity and soaking time was logarithmic function (m=a+bln t)

and the relationship between water absorption rate and soaking time was power function (v=at-b). (5) C content was positively correlated with the water holding capacity of twig litters in P. yunnanensis forest (p ＜ 0.05)

N content was negatively correlated with the water holding capacity of leaf litters in two types of forests (p ＜ 0.05). In conclusion

nitrogen addition affects the water holding capacity of litters by changing the residual characteristics of C

N and P nutrient elements during the decomposition process.

关键词

Keywords

references

Kwon T O, Shibata H, Kepfer-Rojas S, et al. Effects of climate and atmospheric nitrogen deposition on early to mid-term stage litter decomposition across biomes[J].Frontiers in Forests and Global Change,2021,90:e678480.

Du E, Feng M E, De V W, et al. Atmospheric nitrogen deposition to global forests:Status, impacts and management options[J].Environmental Pollution,2019,250:1044-1048.

Dong C G, Qiao Y N, Cao Y, et al.Seasonal variations in carbon,nitrogen,and phosphorus stoichiometry of a robinia pseudoacacia plantation on the Loess Hilly region,China[J].Forests,2021,12(2):e214.

Yue K, Fornara D A, Yang W, et al. Effects of three global change drivers on terrestrial C:N:P stoichiometry:A global synthesis[J].Global Change Biology,2017,23(6):2450-2463.

王东丽,郝可欣,梁潇洒,等.干扰对固沙樟子松林凋落物特征及持水性的影响[J].浙江农林大学学报,2019,36(6):1125-1133.

张雨鉴,宋娅丽,王克勤,等.模拟氮沉降对滇中高山栎林凋落物碳氮磷释放和生态化学计量特征的影响[J].西北农林科技大学学报(自然科学版),2022,50(11):70-92.

张乃木,宋娅丽,王克勤,等.模拟氮沉降下滇中亚高山森林凋落物养分元素释放特征[J].生态环境学报,2021,30(5):920-928.

Zhang T A, Luo Y Q, Chen H Y H, et al. Responses of litter decomposition and nutrient release to N addition:A meta-analysis of terrestrial ecosystems[J].Applied Soil Ecology,2018,128:35-42.

丁咸庆,常月,柏菁,等.亚热带不同次生林地凋落物持水特性及季节变化[J].生态学报,2021,41(8):3190-3200.

吴迪,韩振诚,李苇洁,等.马缨杜鹃不同花叶比例凋落物的分解程度和持水性能研究[J].水土保持学报,2020,34(5):186-191.

Jourgholami M, Sohrabi H, Venanzi R, et al. Hydrologic responses of undecomposed litter mulch on compacted soil:Litter water holding capacity, runoff, and sediment[J].Catena,2022,210:e05875.

侯芳,王克勤,宋娅丽,等.滇中亚高山典型森林生态系统碳储量及其分配特征[J].生态环境学报,2018,27(10):1825-1835.

侯芳,王克勤,宋娅丽,等.滇中亚高山5种典型森林乔木层生物量及碳储量分配格局[J].水土保持研究,2018,25(6):29-35.

张晓曦,王丽洁,纪永康.模拟氮沉降对刺槐及沙棘凋落叶分解的影响[J].植物科学学报,2021,39(4):398-406.

周世兴,肖永翔,向元彬,等.模拟氮沉降对华西雨屏区天然常绿阔叶林凋落叶分解过程中基质质量的影响[J].生态学报,2016,36(22):7428-7435.

蒲嘉霖,刘亮.亚热带森林凋落物分解特征及水文效应[J].水土保持研究,2019,26(6):165-170.

王忠禹,刘国彬,王兵,等.黄土丘陵区典型植物枯落物凋落动态及其持水性[J].生态学报,2019,39(7):2416-2425.

李素丽,徐佳文,丁翊东,等.赣江中游水源涵养林乔木和蕨类植物凋落物持水和失水特征[J].水土保持学报,2021,35(3):170-176.

王书丽,黄立君,袁希,等.氮添加和升温对杉木林凋落物分解及碳氮磷化学计量特征的影响[J].生态学杂志,2020,39(9):2842-2850.

Parton W, Silver W L, Burke I C, et al. Global-scale similarities in nitrogen release patterns during long-term decomposition[J].Science,2007,315(5810):361-364.

Moore T R, Trofymow J A, Prescott C E, et al. Patterns of carbon, nitrogen and phosphorus dynamics in decomposing foliar litter in Canadian forests[J].Ecosystems,2006,9(1):46-62.

Osono T. Ecology of ligninolytic fungi associated with leaf litter decomposition[J].Ecological Research,2007,22(6):955-974.

潘禹,王克勤,宋娅丽,等.华山松林凋落物养分释放及土壤生态化学计量特征对模拟氮沉降的短期响应[J].生态环境学报,2021,30(3):492-502.

潘禹,宋娅丽,王克勤,等.模拟N沉降对滇中亚高山典型森林凋落物分解及土壤微生物的影响[J].林业科学研究,2021,34(3):88-97.

郑兴蕊,王克勤,宋娅丽,等.滇中亚高山不同森林土壤酶活性对模拟N沉降的响应[J].林业科学研究,2021,34(2):50-62.

张雨鉴,宋娅丽,王克勤,等.滇中亚高山人工林凋落物分解对模拟氮沉降的响应[J].应用生态学报,2020,31(8):2523-2532.

肖银龙,涂利华,胡庭兴,等.模拟氮沉降对华西雨屏区苦竹林凋落物养分输入量的早期影响[J].生态学报,2013,33(23):7355-7363.

Pereira L C, Balbinot L, Lima M T, et al. Aspects of forest restoration and hydrology:The hydrological function of litter[J].Journal of Forestry Research,2022,33(2):543-552.

Anne F A S, Antonio C P C, Diego T M, et al. Capacidade de retenção hídrica do estoque de serapilheira de eucalipto[J].Floresta e Ambiente,2017,24:e20150303.

刘小娥,苏世平.兰州市南北两山5种典型人工林凋落物的水文功能[J].应用生态学报,2020,31(8):2574-2582.

浏览量

760

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

氮沉降下滇中高原森林凋落物分解特征对其持水性的影响

三种阔叶林凋落物的持水特性

氮添加对巴音布鲁克高寒湿地土壤无机磷形态的影响

三峡库区2种土地利用方式下土壤盐基离子及

黄土高原人工油松林土壤碳氮对短期氮添加的响应