文献类型：期刊文献

英文题名：On Change of Soil Moisture Distribution With Vegetation Reconstruction in Mu Us Sandy Land of China, With Newly Designed Lysimeter

作者：Cheng, Yiben[1,2] Yang, Wenbing[3] Zhan, Hongbin[4] Jiang, Qunou[1,2] Shi, Mingchang[1] Wang, Yunqi[1,2] Li, Xinle[5] Xin, Zhiming[5]

第一作者：Cheng, Yiben

通信作者：Cheng, YB[1];Wang, YQ[1];Cheng, YB[2];Wang, YQ[2];Li, XL[3]

机构：[1]Beijing Forestry Univ, Sch Soil & Water Conservat, Beijing, Peoples R China;[2]Beijing Forestry Univ, Jinyun Forest Ecosyst Res Stn, Sch Soil & Water Conservat, Beijing, Peoples R China;[3]Chinese Acad Forestry, Inst Desertificat, Beijing, Peoples R China;[4]Texas A&M Univ, Dept Geol & Geophys, College Stn, TX USA;[5]Chinese Acad Forestry, Inner Mongolia Dengkou Desert Ecosyst Natl Observ, Expt Ctr Desert Forestry, Beijing, Peoples R China

年份：2021

卷号：12

外文期刊名：FRONTIERS IN PLANT SCIENCE

收录：;Scopus(收录号：2-s2.0-85102146176);WOS:【SCI-EXPANDED(收录号:WOS:000625163500001)】；

基金：This study was supported with research grants from the National Natural Science Foundation of China (41771306), the National Science and Technology Major Project (2018YFC0507100 and 2017ZX07101004), the National Nonprofit Institute Research Grant of Chinese Academy of Forestry (grant number CAFYBB2018ZA004), the Fundamental Research Funds for the Central Universities (BLX201814), and funding from Key Technology Research and Demonstration of Ecological Culture Industry in Hunshandake Sandy Land.

语种：英文

外文关键词：rainfed Pinus sylvestris var; Mongolia; infiltration; semi-arid region; vegetation restoration; soil moisture

摘要：Background China's so-called Three North Shelterbelt Program (3NSP) has produced a vast area of lined forest reconstruction in the semi-arid regions. This study uses the lined rain-fed Pinus sylvestris var. mongolica (PSM) sand-fixing forest in the eastern part of Mu Us Sandy Land in Northwestern China as an example to investigate the ecohydrological process in this region. Rain gauges, newly designed lysimeters and soil moisture sensors are used to monitor precipitation, deep soil recharge (DSR) and soil water content, where DSR specifically refers to recharge that can reach a depth more than 200 cm and eventually replenish the underneath groundwater reservoir. Results This study shows that there are two obvious moisture recharge processes in an annual base for the PSM forest soil: a snowmelt-related recharge process in the spring and a precipitation-related recharge process in the summer. The recharge depth of the first process can reach 180 cm without DSR occurring (in 2018). The second process results in noticeable DSR in 2018. Specifically, the DSR values over 2016-2018 are 1, 0.2, and 1.2 mm, respectively. To reach the recharge depths of 20, 40, 80, 120, 160, and 200 cm, the required precipitation intensities have to be 2.6, 3.2, 3.4, 8.2, 8.2, and 13.2 mm/d, respectively. The annual evapotranspiration in the PSM forest is 466.94 mm in 2016, 324.60 mm in 2017, and 183.85 mm in 2018. Conclusion This study concludes that under the current precipitation conditions (including both dry- and wet-years such as 2016-2018), water consumption of PSM somewhat equals to the precipitation amount, and PSM has evolved over years to regulate its evapotranspiration in response to annual precipitation fluctuations in Mu Us Sandy Land of China.