文献类型：期刊文献

英文题名：Soil capacity of intercepting different rainfalls across subtropical plantation: Distinct effects of plant and soil properties

作者：Zhang, Beibei[1] Xu, Qing[1] Gao, Deqiang[1] Wang, Ting[1] Sui, Mingzhen[1] Huang, Jin[2] Gu, Binhe[3] Liu, Futing[2] Jiang, Jing[4]

第一作者：Zhang, Beibei

通信作者：Xu, Q[1]

机构：[1]Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Key Lab Forest Ecol & Environm Natl Forestry & Gr, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[3]Univ Florida, Soil & Water Sci Dept, Gainesville, FL 32603 USA;[4]Univ Calgary, Calgary, AB T2N 1N4, Canada

年份：2021

卷号：784

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20211810277662);Scopus(收录号：2-s2.0-85105695272);WOS:【SCI-EXPANDED(收录号:WOS:000657593600008)】；

基金：We gratefully thank Natalie Defraene for English editing. This work was supported by the National Nonprofit Institute Research Grant of CAF (CAFYBB2017ZB003), National Key Research and Development Program of China (2016YFD0600201) and the National Natural Science Foundation of China (31870716; 31670720).

语种：英文

外文关键词：Hydrogen stable isotope; Plantation; Management practices; Contribution of rainfall to soil water; Subtropics

摘要：Forest management practices play an important role in soil water conservation. However, the soil water-holding capacity and associated drivers under different management practices remain uncertain, especially when the precipitation varies substantially at the regional scale. Here, we used hydrogen stable isotope to explore the contribution of rainfall to soil water (CRSW) under light, moderate and heavy precipitation in Pinus massoniana plantations with multiple management practices (pure stand, mixed stand, understory removal, light-intensity thinning and high-intensity thinning) in subtropical China. We further used variation partitioning analysis and structural equation modeling to identify the dominant driver affecting CRSW. Our results showed that after light rainfall, the highest CRSW (28.7%) was found in the high-intensity thinning plantation. However, after heavy rainfall, the high-intensity thinning plantation received the lowest CRSW (43.3%), while the mixed stand showed the highest CRSW (67.1%). These results demonstrated that the mixed stand of P. massoniana had a stronger capacity for soil water conservation, whereas high-intensity thinning showed poorer capacity. Furthermore, our results revealed that plant properties (i.e., tree, root and litter biomass) were the dominant controls of the CRSW under light rainfall, while soil properties (i.e., bulk density, total porosity, field capacity) were the primary drivers under moderate and heavy rainfall, indicating that the determinants influencing plantation capacity for intercepting rainfall vary with different levels of precipitation. These results highlight the importance Science of the Total Environment 784 (2021) 147120 of the level of precipitation in determining the dominant driver of CRSW. More importantly, these results suggest that the mixed stand, rather than high-intensity thinning, was better forest management since the former has a higher capacity for intercepting heavy rainfall. (c) 2021 Elsevier B.V. All rights reserved.