文献类型：期刊文献

中文题名：草地灌丛化对土壤水文过程影响研究进展

英文题名：Research Progress of Shrub Encroachment in Grasslands on Soil Hydrologic Process

作者：陈晓娜[1,2] 赵纳祺[1,3] 高君亮[1,3] 张帅[1,3] 徐光甫[1,3] 杨耀科[1,3]

第一作者：陈晓娜

机构：[1]中国林业科学研究院沙漠林业实验中心,内蒙古磴口015200;[2]内蒙古磴口荒漠生态系统国家定位观测研究站,内蒙古磴口015200;[3]乌兰布和沙漠综合治理国家长期科研基地,内蒙古磴口015200

年份：2024

卷号：43

期号：S01

起止页码：90-95

中文期刊名：中国野生植物资源

外文期刊名：Chinese Wild Plant Resources

收录：CSCD:【CSCD_E2023_2024】；

基金：鄂尔多斯市科技重大专项(2022EEDSKLZDZX020-3)。

语种：中文

中文关键词：水文过程;灌丛化;草地;水分再分配特征

外文关键词：Hydrologic process;Shrub encroachment;Grassland;Water redistribution characteristics

分类号：S812.4

摘要：目的:灌丛化是全球草原面临的重要环境难题,影响着草原中整体植被长势及存活情况,厘清灌丛化对草地土壤水分的影响,对草地植被保护及恢复具有重要的科学意义。方法:从降水截留、蒸散发特征、水分入渗、水分利用及水分整体动态5个方面阐述了草地灌丛化对土壤水文过程的影响。结果:灌丛化草地的土壤水分分配除受自身容重与孔隙度的影响,还会受灌丛种类、大小、凋落物、根系分布及外界环境的间接影响。结论:今后相关研究应结合航空拍摄和遥感影像等先进技术,适当延长草地灌丛化后水文变化过程的试验周期,进一步探讨深根系和浅根系植被种类间的水分竞争与共享机制,以期明确草原生态系统的水文阈值及其水分动态平衡。
Objective:Shrub encroachment is the main environmental problem in grassland regions all over the world.It determines the growth and survival of the plant in grassland.It has great scientific significance for grassland vegetation protection and restoration to clarify the influence of scrub on grassland soil moisture.Methods:The effects of grassland shrub on eco-hydrological processes were reviewed from five aspects:rainfall intercept,evapotranspiration characteristics,water infiltration,water utilization and overall water dynamics.Results:The soil water distribution in shrub encroachment grassland was not only affected by its own volume weight and porosity,but also indirectly affected by shrub type,size,litter,root distribution and external environment.Conclusion:In the future,relevant studies should be combined with advanced technologies such as aerial photography and remote sensing images to properly extend the test period of hydrological change process after grassland shrubland.The water competition and sharing mechanism between deep-rooted and shallow-rooted vegetation species should be further explored to clarify the hydrological threshold and water dynamic balance of grassland ecosystems.