文献类型：期刊文献

英文题名：Deep percolation and soil water dynamics under different sand-fixing vegetation types in two different precipitation regions in semiarid sandy Land, Northern China

作者：He, Liang[1] Cheng, Yiben[1] Yang, Wenbin[2] Guo, Jianbin[1] Xin, Zhiming[3] Chen, Lin[4] Xiong, Wei[2] Wang, Qianqian[1] Liu, Huaiyuan[3]

第一作者：He, Liang

通信作者：Cheng, YB[1];Guo, JB[1]

机构：[1]Beijing Forestry Univ, Sch Soil & Water Conservat, Key Lab State Forestry Adm Soil & Water Conservat, Beiing 100083, Peoples R China;[2]Chinese Acad Forestry, Inst Ecol Conservat & Restorat, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou 015200, Peoples R China;[4]Ningxia Univ, Coll Ecol & Environm Sci, Yinchuan 750021, Ningxia, Peoples R China

年份：2025

卷号：364

外文期刊名：AGRICULTURAL AND FOREST METEOROLOGY

收录：;Scopus(收录号：2-s2.0-85217895787);WOS:【SCI-EXPANDED(收录号:WOS:001444736900001)】；

基金：This work was supported by the National Natural Science Foundation of China [32271959, U2243202] ; National Key Research and Development Program [2023YFF130420103, 2023YFF1305201, 2022YFF1300404] ; Central Public-Interest Scientific Institution Basal Research Fund of CAF [CAFYBB2024ZA028-1] ; Key Research and Development Program of the Ningxia Hui Autonomous Region [2023BEG02049, 2021BEG02005-012] ; Research on Ecological Photovoltaic Vegetation Configuration Model and Restoration Technology [AMKJ2023-17] ; Beijing Forestry University Hotspot Tracking Project: Aid to Mongolia's "one Billion Trees" Planting Initiative and China-Mongolia Desertification Cooperation [2023BLRD04] . The authors are grateful to the anonymous reviewers for their constructive comments that helped us improve this manuscript.

语种：英文

外文关键词：Sandy regions; Deep percolation recorder; Deep percolation; Soil water change; Different precipitation regions; Vegetation restoration

摘要：Large-scale afforestation has undoubtedly aided in combating desertification but it also exerts negative effects on the hydrological cycle, particularly on deep percolation (DP) and soil water dynamics. This study aims to fill the gap in current research on the effect of different sand-fixing vegetation types on DP and soil water in two different precipitation regions through in-situ tests and direct measurements. The experiment focused on various vegetation types in two sites with different precipitation levels: the Mu Us Sandy Land with four plots (mobile sand [MS], Artemisia ordosica semishrub fixed [AOF], Salix psammophila shrub fixed [SPF], and Pinus sylvestrix var. Mongolica arbor fixed [PSMF] sands) and the Horqin Sandy Land with three plots (mobile sand, Caragana microphylla shrub fixed [CMF] and Populus bolleana Lauche arbor fixed [PBLF] sands). To accurately estimate DP and soil water under various vegetation types, DP was measured using a deep percolation recorder and the relative extractable soil water (RESW) was calculated based on soil water. The rainfall threshold (10 mm) of MS for the occurrence of DP was the same in both sites but the precipitation amount during a rainfall event causing significant increases in DP was different. The canopy interception and root uptake of vegetation significantly reduced DP amount compared with MS at the daily and monthly scales. The DP amount in vegetated plots in the two areas could be ranked as follows: semishrub > shrub > arbor. Compared with MS, the soil profile (0-200 cm) of vegetated plots showed significant decreases in RESW. Within the soil layer of 40-200 cm, RESW was significantly higher in shrub plots than in arbor plots. Arbor plots had an imbalanced water budget, consuming more deep soil water (120-200 cm). Our findings provide a scientific foundation for ecological restoration and water resource management.