长沙地区樟树林穿透水空间变异及稳定同位素特征

戴军杰; 章新平; 罗紫东; 王锐; 贺新光; 关华德

doi:10.13870/j.cnki.stbcxb.2020.03.043

您当前的位置：

首页 >

文章列表页 >

长沙地区樟树林穿透水空间变异及稳定同位素特征

更新时间：2025-03-12

- 长沙地区樟树林穿透水空间变异及稳定同位素特征
- Spatial Variation and Stable Isotopic Characteristic of Throughfall Under
- 水土保持学报 2020年34卷第3期页码：291-298
- 作者机构：
  
  1. 湖南师范大学资源与环境科学学院,长沙,410081
  2. 湖南师范大学地理空间大数据挖掘与应用湖南省重点实验室,长沙,410081
  3. College of Science and Engineering, Flinders University,SA,Adelaide,5001
- 作者简介：
  
  [ "戴军杰(1995-),男,在读硕士研究生,主要从事生态水文研究。E-mail:473995984@qq.com" ]
- 基金信息：
  
  国家自然科学基金项目（41571021）
- DOI：10.13870/j.cnki.stbcxb.2020.03.043
  中图分类号： S715
- 纸质出版：2020
- 稿件说明：
移动端阅览
戴军杰, 章新平, 罗紫东, 等. 长沙地区樟树林穿透水空间变异及稳定同位素特征[J]. 水土保持学报, 2020,34(3):291-298.

DAI Junjie, ZHANG Xinping, LUO Zidong, et al. Spatial Variation and Stable Isotopic Characteristic of Throughfall Under[J]. 2020, 34(3): 291-298.
戴军杰, 章新平, 罗紫东, 等. 长沙地区樟树林穿透水空间变异及稳定同位素特征[J]. 水土保持学报, 2020,34(3):291-298. DOI： 10.13870/j.cnki.stbcxb.2020.03.043.

DAI Junjie, ZHANG Xinping, LUO Zidong, et al. Spatial Variation and Stable Isotopic Characteristic of Throughfall Under[J]. 2020, 34(3): 291-298. DOI： 10.13870/j.cnki.stbcxb.2020.03.043.

摘要

于2018年4月至2019年3月在长沙地区典型樟树林收集降水、穿透水和相应的冠层信息，分析穿透水量的空间变异及穿透水稳定同位素的特征，旨在揭示林冠层水文过程，为林地水文生态系统的科学管理提供参考。结果表明：樟树林下总穿透水量为340.1 mm，占林外总降水量的71.2%；受观测点距树干距离和冠层叶面积指数等因素的综合影响，穿透水量具有较大的空间变异，且在时间变化上相对稳定。分析表明，研究区穿透水量的空间变异系数随降水量增加而减小，体现了降水特征对穿透水空间变异的重要影响；相对穿透水量而言，穿透水稳定同位素组成受冠层结构和大气条件的影响较小，其空间变异较小，在时间变化上不稳定；大部分降水事件中穿透水稳定同位素较降水稳定同位素富集，但其平均值之间不具有显著性差异，说明穿透水在形成过程中经历了较弱的蒸发作用；穿透水与降水中稳定同位素和过量氘的偏离还暗示了冠层具有选择性穿透效应。

Abstract

In order to reveal the hydrological process of the forest canopy and provide a reference for the scientific management of forest hydrological ecosystem

precipitation

throughfall

and canopy information were collected from typical Cinnamomum Camphora woods during April 2018 to March 2019 in Changsha to study the spatial variability of throughfall and the characteristic of stable isotopes in throughfall. The results showed that the total throughfall under the canopy was 340.1 mm

accounting for 71.2% of the total precipitation outside the forest; comprehensively affected by the canopy structure including the distance from tree trunk and the leaf area index. The throughfall presented great spatial variability and stable temporal variability.The correlation analysis showed that the coefficient of spatial variability decreased with the increase of precipitation

reflecting the important influence of precipitation characteristics on the spatial variation of throughfall.Compared with the amount of throughfall

the stable isotopic compositions in throughfall were hardly affected by canopy structure and atmospheric conditions

not obvious in spatial variation

and not stable in temporal variation. In most precipitation events

stable isotopes in throughfall were richer than those in precipitation

and there was no significant discrepancy between the mean values of them

indicating that throughfall underwent weak evaporation in its formation process. The deviation between the stable isotopes and d in throughfall and those in precipitation suggested that the canopy had the selective penetrating effect.

关键词

Keywords

references

盛后财,蔡体久,俞正祥.大兴安岭北部兴安落叶松(

Larix gmelinii

)林下穿透雨空间分布特征[J].生态学报,2016,36(19):6266-6273.

刘泽彬,王彦辉,邓秀秀,等.六盘山华北落叶松林下穿透雨空间变异特征[J].生态学报,2017,37(10):3471-3481.

Katoa H, Onda Y, Nanko K, et al. Effect of canopy interception on spatial variability and isotopic composition of throughfall in Japanese cypress plantations[J].Journal of Hydrology,2013,504:1-11.

Zhang Y F, Wang X P, Hu R, et al. Throughfall and its spatial variability beneath xerophytic shrub canopies within water-limited arid desert ecosystems[J].Journal of Hydrology,2016,539:406-416.

裴承敏,王云琦,张守红,等.重庆缙云山毛竹林次降雨再分配特征及穿透雨的空间异质性[J].水土保持学报,2018,32(5):202-207.

Sato A M, Avelar A S,Netto A L C.Spatial variability and temporal stability of throughfall in a eucalyptus plantation in the hilly lowlands of southeastern Brazil[J].Hydrological Processes,2011,25(12):1910-1923.

Fan J L, Oestergaard K T, Guyot A, et al. Spatial variability of throughfall and stemflow in an exotic pine plantation of subtropical coastal Australia[J]. Hydrological Processes,2015,29(5):793-804.

Keim R F,Skaugset A E,Weiler M. Temporal persistence of spatial patterns in throughfall[J].Journal of Hydrology,2005,314(1/4):263-274.

时忠杰,王彦辉,徐丽宏,等.六盘山华山松(

Pinus armandii

)林降雨再分配及其空间变异特征[J].生态学报,2009,29(1):76-85.

Allen S T, Brooks J R, Keim R F, et al. The role of pre-event canopy storage in throughfall and stemflow by using isotopic tracers[J].Ecohydrology,2014,7(2):858-868.

Xu X, Guan H D, Deng Z J.Isotopic composition of throughfall in pine plantation and native eucalyptus forest in South Australia[J].Journal of Hydrology,2014,514:150-157.

陶泽,司炳成,靳静静.矮化枣树冠层改变降雨截留历时过程同位素和化学特征[J].水土保持学报,2017,31(5):189-195.

徐振,安树青,王中生,等.川滇高山栎灌丛冠层穿透水及其稳定同位素组成变化特征[J].资源科学,2007,29(5):129-136.

Allen S T, Keim R F, McDonnell J J.Spatial patterns of throughfall isotopic composition at the event and seasonal timescales[J]. Journal of Hydrology,2015,522:58-66.

赵亮生,闫文德,项文化,等.樟树人工林林冠截留效应分析[J].中南林业科技大学学报,2013,33(5):91-95.

Pekin B, Macfarlane C. Measurement of crown cover and leaf area index using digital cover photography and its application to remote sensing[J].Remote Sensing,2009,1:1298-1320.

及莹,蔡体久.小兴安岭原始红松林降雨截留观测及分段模拟[J].北京林业大学学报,2015,37(10):41-49.

方江平,项文化,刘韶辉.西藏原始林芝云杉林雨季林冠降水分配特征[J].生态学报,2010,30(14):3679-3687.

周彬,韩海荣,康峰峰,等.太岳山不同郁闭度油松人工林降水分配特征[J].生态学报,2013,33(5):1645-1653.

韩诚,张金池,庄义琳,等.苏南丘陵区麻栎林冠层水文效应及其影响因素[J].南京林业大学学报(自然科学版),2014,38(2):93-98.

江淼华,吕茂奎,胥超,等.亚热带米槠次生林和杉木人工林林冠截留特征比较[J].水土保持学报,2017,31(1):116-121.

宝虎,刘殿国,赵鹏武,等.大兴安岭南段白桦林降雨再分配特征研究[J].干旱区资源与环境,2016,30(2):82-87.

张宁,郭宾良,张国强,等.沿坝地区天然次生林对降雨再分配的影响[J].水土保持研究,2015,22(6):99-102.

万艳芳,刘贤德,王顺利,等.祁连山青海云杉林冠降雨再分配特征及影响因素[J].水土保持学报,2016,30(5):224-229.

Sun X C, OndaY, Hirata A, et al. Effect of canopy openness and meteorological factors on spatial variability of throughfall isotopic composition in a Japanese cypress plantation[J].Hydrological Processes,2018,32(8):1038-1049.

浏览量

940

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

黄土高寒区典型小流域土壤团聚体稳定性及可蚀性空间变异特征

长江三峡山地集水区土壤水分空间变异特征

块石出露对喀斯特坡耕地土壤理化性质的影响

不同人为管理措施坡面地表微地形变化特征及其对渗流的响应

毛乌素沙地采煤塌陷区土壤水分空间变异研究