PDF Download

[1]GAI Haoqi,SHI Peijun,LI Zhi.Impact of Land Use Change on Soil Water Balance in Changwu Tableland of Loess Region[J].Research of Soil and Water Conservation,2023,30(04):154-159.[doi:10.13869/j.cnki.rswc.2023.04.032.]

Copy

Impact of Land Use Change on Soil Water Balance in Changwu Tableland of Loess Region

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 30 Number of periods: 2023 04 Page number: 154-159 Column: Public date: 2023-06-10

Title:: Impact of Land Use Change on Soil Water Balance in Changwu Tableland of Loess Region

Author(s):: GAI Haoqi, SHI Peijun, LI Zhi; (College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China)

Keywords:: loess region; isotope tracing; deep drainage; vegetation change; soil water balance

CLC:: S152.7

DOI:: 10.13869/j.cnki.rswc.2023.04.032.

Abstract:: [Objective] The aim of this study is to explore the impact of land use change(LUC)on various hydrological variables in soil water balance as well as the mechanism of water cycle in loess region, and then to provide technical support for similar research. [Methods] We chose the Changwu loess tableland as the study area, and then collected soil samples from the surface down to 20 m under three land use types(farmland, 18-year apple orchard and 26-year apple orchard). Then, the content of soil water, stable(δ²H and δ¹⁸O)and radioactive(³H)isotopes were measured. The components of soil water balance were decomposed and quantified, and their responses to land use changes were evaluated. [Results] Compared with farmland, the soil water storage under apple orchard(stand age 18 and 26 years)decreased by 7.3%～14.3%, the deep drainage decreased by 41.2%～80.0%, and the evapotranspiration increased by 5.0%～9.6%, of which evaporation decreased by 8.6%～17.2%, while transpiration increased by 12.9%～25.4%. [Conclusion] There were significant differences in soil water contents under three land use types, and the soil water oxygen isotope profiles showed a general trend of decreasing and then stabilizing, with soil water subject to the strongest evaporation under farmland. Deep-rooted fruit trees mainly reduced the flux of other hydrological variables by increasing transpiration water consumption, which significantly affected the hydrological process.

References:: [1] 裴艳武,黄来明,邵明安,等.毛乌素沙地不同地下水位埋深下土壤水补给特征及影响因素[J].农业工程学报,2021,37(12):108-116.
[2] Li B B, Biswas A, Wang Y Q, et al. Identifying the dominant effects of climate and land use change on soil water balance in deep loessial vadose zone[J]. Agricultural Water Management, 2021, 245:106637.
[3] 张瑞,李鹏展,王力.黄土旱塬区土壤水分状况与作物生长、降水的关系[J].应用生态学报,2019,30(2):359-369.
[4] 穆兴民,徐学选,王文龙,等.黄土高原人工林对区域深层土壤水环境的影响[J].土壤学报,2003,40(2):210-217.
[5] 刘锦月,韩晓阳,朱元骏.长武塬区苹果园和农田相互转换的深层土壤水环境效应[J].干旱地区农业研究,2020,38(5):130-135.
[6] 白晓,贾小旭,邵明安,等.黄土高原北部土地利用变化对长期土壤水分平衡影响模拟[J].水科学进展,2021,32(1):109-119.
[7] 程立平,刘文兆,李志.黄土塬区不同土地利用方式下深层土壤水分变化特征[J].生态学报,2014,34(8):1975-1983.
[8] Shi P J, Huang Y N, Ji W J, et al. Impacts of deep-rooted fruit trees on recharge of deep soil water using stable and radioactive isotopes[J]. Agricultural and Forest Meteorology, 2021, 300:108325.
[9] Li B B, Wang Y Q, Hill R L, et al. Effects of apple orchards converted from farmlands on soil water balance in the deep loess deposits based on HYDRUS-1D model[J]. Agriculture, Ecosystems & Environment, 2019, 285:106645.
[10] 刘增进,柴红敏,李宝萍.豫西黄土丘陵区林草植被蒸散量估算研究[J].灌溉排水学报,2012,31(3):99-102,138.
[11] 张建军,李慧敏,徐佳佳.黄土高原水土保持林对土壤水分的影响[J].生态学报,2011,31(23):71-81.
[12] 陶泽,司炳成,靳静静.矮化枣树冠层改变降雨截留历时过程同位素和化学特征[J].水土保持学报,2017,31(5):189-195.
[13] 穆艳,王延平.黄土长武塬区苹果林地水量平衡研究[J].农业现代化研究,2017,38(1):161-167.
[14] Li H, Si B C, Li M. Rooting depth controls potential groundwater recharge on hillslopes[J]. Journal of Hydrology, 2018, 564:164-174.
[15] 李杰彪,苏锐,田霄,等.干旱-半干旱地区地下水补给方法研究综述[J].世界核地质科学,2013,30(3):168-173.
[16] Shi P J, Huang Y N, Yang C Y, et al. Quantitative estimation of groundwater recharge in the thick loess deposits using multiple environmental tracers and methods[J]. Journal of Hydrology, 2021, 603:126895.
[17] Xiang W, Evaristo J, Li Z. Recharge mechanisms of deep soil water revealed by water isotopes in deep loess deposits[J]. Geoderma, 2020, 369:114321.
[18] Li Z, Jasechko S, Si B C. Uncertainties in tritium mass balance models for groundwater recharge estimation[J]. Journal of Hydrology, 2019,571:150-158.
[19] Li Z, Chen X, Liu W Z, et al. Determination of groundwater recharge mechanism in the deep loessial unsaturated zone by environmental tracers[J]. Science of the Total Environment, 2017,586:827-835.
[20] Zhang Z Q, Evaristo J, Li Z, et al. Tritium analysis shows apple trees may be transpiring water several decades old[J]. Hydrological Processes, 2017,31(5):1196-1201.
[21] Huang T M, Pang Z H. Estimating groundwater recharge following land-use change using chloride mass balance of soil profiles: a case study at Guyuan and Xifeng in the Loess Plateau of China[J]. Hydrogeology Journal, 2011,19(1):177-186.
[22] Huang Y N, Li B B, Li Z. Conversion of degraded farmlands to orchards decreases groundwater recharge rates and nitrate gains in the thick loess deposits[J]. Agriculture, Ecosystems & Environment, 2021, 314: 107410.
[23] Ji W J, Huang Y N, Shi P J, et al. Recharge mechanism of deep soil water and the response to land use change in the loess deposits[J]. Journal of hydrology, 2021, 592:125817.
[24] Li H J, Si B C, Wu P T, et al. Water mining from the deep critical zone by apple trees growing on loess[J]. Hydrological Processes, 2019,33(2):320-327.
[25] Lu Y W, Si B C, Li H J, et al. Elucidating controls of the variability of deep soil bulk density[J]. Geoderma, 2019,348:146-157.
[26] Zhang Z Q, Li M, Si B C, et al. Deep rooted apple trees decrease groundwater recharge in the highland region of the Loess Plateau, China[J]. Science of the Total Environment, 2018, 622:584-593.
[27] De Medeiros G A, Arruda F B, Sakai E, et al. The influence of crop canopy on evapotranspiration and crop coefficient of beans(Phaseolus vulgaris L.)[J]. Agricultural Water Management, 2001,49(3):211-224.
[28] 胡良军,邵明安.黄土高原植被恢复的水分生态环境研究[J].应用生态学报,2002,13(8):1045-1048.
[29] Huang Y N, Chang Q R, Li Z. Land use change impacts on the amount and quality of recharge water in the loess tablelands of China[J]. Science of the Total Environment, 2018,628:443-452.
[30] 李晨曦.基于环境同位素的洛川塬区地下水补给机制研究[D].陕西杨凌:西北农林科技大学,2017.
[31] 程立平,刘文兆,李志,等.长武黄土塬区土地利用变化对潜水补给的影响[J].水科学进展,2016,27(5):670-678.

Similar References:

Memo

Last Update: 2023-06-10