中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Revealing the role that epikarst fissures filled with soil play in soil erosion and nutrient loss in karst rocky desertification region of Guizhou, China

文献类型：期刊论文

作者Xiong, Bailian3; Gao, Yang1,2; Liu, Junlong3; Yan, Xiong3
刊名JOURNAL OF HYDROLOGY-REGIONAL STUDIES
出版日期2024-02-01
卷号51页码:16
关键词Epikarst fissure filled with soil Rocky desertification slope Underground runoff Soil erosion Nutrient loss
DOI10.1016/j.ejrh.2023.101645
通讯作者Xiong, Bailian(xblxnq@126.com) ; Gao, Yang(gaoyang@igsnrr.ac.cn)
英文摘要Study region: Karst region in Guizhou Province, China. Study focus: Epikarst fissure filled with soil (EFS) is an important pathway connecting the karst surface with karst underground pipelines, and a vital soil resource bank in rocky desertification regions. Being buried underground, EFS is difficult to study, and the characteristics and control mechanism of soil erosion and nutrient loss in EFS need to be further investigated. In this work, we constructed a simulated experimental device that separated the EFS from the whole karst slope, and studied the role of EFS in soil erosion and nutrient loss in karst rocky desertification region. New hydrological insights for the region: Sediment erodes from the bottom of EFS. The scouring effect surpasses the dilution effect, and dominating the process of carbon and nitrogen loss in the EFS. The 0-30 cm soil layer of EFS profile intercepts part of carbon and nitrogen in slope runoff, with a higher interception rate for carbon compared to nitrogen, thereby reducing the C/N ratio in underground runoff. EFS is an important pathway for dissolved total carbon (DTC) and dissolved total nitrogen (DTN) loss. These results reveal the important roles of EFS in soil erosion and C and N loss in karst rocky desertification region, and are promising to provide a theoretical basis on the application of EFS to the ecological restoration in this region.
WOS关键词BARE SLOPES ; LAND-COVER ; CARBON ; RAINFALL ; NITROGEN ; RUNOFF ; AREA ; QUALITY
资助项目National Nature Science Foundation of China[41961047] ; Guizhou Provincial Science and Technology Program ; Demonstration Base for Rural Revitalization Service for the Transfer and Transformation of High-Efficiency Agricultural Science and Technology Achievements in Modern Mountainous Areas in Northern Guizhou Province ; [Qiankehe Foundation [2020]1Y180] ; [QJJ[2022]067]
WOS研究方向Water Resources
语种英语
出版者ELSEVIER
WOS记录号WOS:001164808100001
资助机构National Nature Science Foundation of China ; Guizhou Provincial Science and Technology Program ; Demonstration Base for Rural Revitalization Service for the Transfer and Transformation of High-Efficiency Agricultural Science and Technology Achievements in Modern Mountainous Areas in Northern Guizhou Province
源URL[http://ir.igsnrr.ac.cn/handle/311030/203215]  
专题中国科学院地理科学与资源研究所
通讯作者Xiong, Bailian; Gao, Yang
作者单位1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 101408, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
3.Zunyi Normal Univ, Coll Resources & Environm, Zunyi 563006, Guizhou, Peoples R China
推荐引用方式
GB/T 7714		 Xiong, Bailian,Gao, Yang,Liu, Junlong,et al. Revealing the role that epikarst fissures filled with soil play in soil erosion and nutrient loss in karst rocky desertification region of Guizhou, China[J]. JOURNAL OF HYDROLOGY-REGIONAL STUDIES,2024,51:16.
APA Xiong, Bailian,Gao, Yang,Liu, Junlong,&Yan, Xiong.(2024).Revealing the role that epikarst fissures filled with soil play in soil erosion and nutrient loss in karst rocky desertification region of Guizhou, China.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,51,16.
MLA Xiong, Bailian,et al."Revealing the role that epikarst fissures filled with soil play in soil erosion and nutrient loss in karst rocky desertification region of Guizhou, China".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 51(2024):16.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。