文献类型：期刊文献

英文题名：Transpiration Sensitivity to Drought in Quercus wutaishansea Mary Forests on Shady and Sunny Slopes in the Liupan Mountains, Northwestern China

作者：Liu, Bingbing[1] Yu, Pengtao[1] Zhang, Xue[2] Li, Jiamei[1] Yu, Yipeng[1] Wan, Yanfang[1] Wang, Yanhui[1] Wang, Xiao[1] Liu, Zebin[1] Pan, Lei[3] Xu, Lihong[1]

第一作者：Liu, Bingbing

机构：[1] Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Liupan Mountains Forest Ecosystems National Positioning Observation and Research Station, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, 100091, China; [2] School of Forestry, Northeast Forestry University, Harbin, 150000, China; [3] Dalad Banner Forestry and Grassland Bureau, Erdos, 301700, China

年份：2022

卷号：13

期号：12

外文期刊名：Forests

收录：EI(收录号：20225213314556);Scopus(收录号：2-s2.0-85144621070)

语种：英文

外文关键词：Forestry - Soil conservation - Soil moisture - Transpiration - Vegetation - Water conservation - Water supply

摘要：Forests in water source areas are important factors for water supply security, soil, and water conservation, and their water consumption from transpiration is strongly affected by site conditions, including the slope aspect. However, the lack of research on how the slope aspect interferes with the response of stand transpiration to drought has hindered researchers from developing climate-resilient forest–water coordinated, sustainable development plans for different stand conditions. This study was conducted on Quercus wutaishansea forests in the southern part of Liupan Mountain in northwest China, and two sample plots were built on sunny and shady slopes. The responses of stand transpiration to various soil moisture and meteorological conditions on different slope orientations were analyzed. The results showed better-growing stands on shady slopes transpired more and consumed more soil moisture than those on sunny slopes. The soil moisture on shady slopes decreased rapidly below the threshold level during the drought, leading to a limitation of stand transpiration; however, its transpiration recovered rapidly after the drought. In contrast, stand transpiration on sunny slopes was not affected by this drought and maintained its pre-drought rate. Our results suggested that stands with higher water demand on shady slopes were more susceptible to drought when it occurred. This indicated that in the case of frequent droughts, the vegetation should be managed according to the vegetation-carrying capacities resulting from different site conditions. ? 2022 by the authors.