Ecological environmental changes and its impact on water resources and water-sediments relationship in Beiluo River Basin
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摘要:
黄土高原地区水土流失严重，水资源短缺，生态系统脆弱，限制了该区域的社会和经济发展。针对人类活动将如何影响黄土高原水沙变化以及如何配置退耕还林还草面积的问题，目前尚缺乏定量分析和研究。以黄土高原渭河子流域北洛河流域为研究区，分析了北洛河流域近20 a降雨、径流、水资源量、产沙量和归一化植被指数的时空变化，建立了流域分布式水文模型，定量评价了退耕还林还草对水资源和水沙关系的影响，探索了不同决策条件下的最优退耕方案。结果表明：流域水资源总量、径流量、地下水资源量和产沙量呈现递减趋势，年均减少量分别为0.07×108 m3、0.01×108 m3、0.012×108 m3、163×104 t；归一化植被指数和降水呈现递增趋势，年均增加量分别为0.0064，0.65×108 m3；生态环境变化导致径流量和产沙量减少，流域分布式水文模型模拟显示退耕还林还草或植被覆盖率增加会导致流域径流量和产沙量共同减少，但产沙量的响应更为敏感；综合考虑径流与产沙的影响，基于多目标优化提出了退耕还林还草面积的优化配置建议，最优退耕面积约为全部耕地面积的28.1%。本研究可为黄土高原地区生态环境建设、水土保持、水沙资源的合理利用提供决策支持。
Abstract:The Loess Plateau region is seriously affected by soil erosion, water scarcity, and fragile ecosystems, which severely hinder social and economic development in the region. There is currently a lack of quantitative analysis and research on how human activities will affect the changes in water and sediment on the Loess Plateau and how to allocate the areas for reforestation and grassland restoration. This study focuses on the Beiluo River Basin in the Loess Plateau, analyzing the spatiotemporal variations of precipitation, runoff, water resources, sediment yield and normalized difference vegetation index (NDVI) over the past 20 years. The study establishes a distributed hydrological model for the basin, quantitatively evaluates the impact of returning farmland to forests and grassland on water resources and sediment transport, and explores the optimal land retirement plan under different decision-making conditions. The results show that the total water resources, runoff, groundwater resources and sediment yield in the basin are decreasing, and the annual reductions are 7×108 m3, 1×108 m3, 1.2×108 m3, and 1.6×104 tons respectively. While NDVI and precipitation is increasing, and the annual increases are 0.0064 and 65×108 m3 respectively. The continuous increase in NDVI has resulted in a reduction in runoff volume and sediment transport. Returning farmland to forests and grassland or increasing vegetation density can reduce the amount of runoff and sediment transport, with sediment transport being more sensitive. Considering both the impact on runoff and sediment transport, based on multi-objective optimization, an optimal allocation proposal for the area of returning farmland to forest and grass is proposed. The optimal land retirement area is 28.1%. This study provides decision-making support for ecological environment construction, soil and water conservation, and rational utilization of water and sediment resources in the Loess Plateau region.
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表 1 北洛河流域SWAT模型敏感参数
Table 1. Sensitivity parameters in the SWAT model for Beiluo River Basin
参数 物理意义 取值 CN2 SCS径流曲线系数 35～98 Alpha_BF 基流衰退系数 0～1 GWQMN/mm 浅层地下水补给深度 0～5 000 ESCO 土壤蒸发补偿系数 0～1 SOL_K/（mm·h−1） 土壤饱和导水率 0～2 000 CANMX/mm 最大冠层蓄水量 0～100 REVAPMN/mm 浅层地下水蒸发深度 0～500 GW_REVAP 地下水蒸发系数 0.02～0.20 Sol_Z/mm 土壤深度 0～3 500 Sol_Awc 土壤可利用水量 0～1 
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表 2 不同情景模式特征
Table 2. Mode characteristics under different scenarios
情景模式 主要特征 变化量/% A1 森林郁闭度变化 −50，−25，+25，+50 A2 草地覆盖率变化 −50，−25，+25，+50 B1 耕地变为森林 25，50，75，100 B2 耕地变为草地 25，50，75，100
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[1] 王明玮, 温跃修, 严登华, 等. 黄河流域未来极端气候事件变化趋势评估[J]. 人民黄河,2023,45(2):33 − 37. [WANG Mingwei, WEN Yuexiu, YAN Denghua, et al. Assessment of future trends of extreme climate events in the Yellow River Basin[J]. Yellow River,2023,45(2):33 − 37. (in Chinese with English abstract)
WANG Mingwei, WEN Yuexiu, YAN Denghua, et al . Assessment of future trends of extreme climate events in the Yellow River Basin[J]. Yellow River,2023 ,45 （2 ）:33 −37 . （in Chinese with English abstract）[2] 张建云, 贺瑞敏, 齐晶, 等. 关于中国北方水资源问题的再认识[J]. 水科学进展,2013,24(3):303 − 310. [ZHANG Jianyun, HE Ruimin, QI Jing, et al. A new perspective on water issues in North China[J]. Advances in Water Science,2013,24(3):303 − 310. (in Chinese with English abstract) doi: 10.14042/j.cnki.32.1309.2013.03.001
ZHANG Jianyun, HE Ruimin, QI Jing, et al . A new perspective on water issues in North China[J]. Advances in Water Science,2013 ,24 （3 ）:303 −310 . （in Chinese with English abstract）[3] 秦伟, 朱清科, 刘广全, 等. 北洛河上游生态建设的水沙调控效应[J]. 水利学报,2010,41(11):1325 − 1332. [QIN Wei, ZHU Qingke, LIU Guangquan, et al. Regulation effects of runoff and sediment of ecological conservation in the upper reaches of Beiluo River[J]. Journal of Hydraulic Engineering,2010,41(11):1325 − 1332. (in Chinese with English abstract) doi: 10.13243/j.cnki.slxb.2010.11.007
QIN Wei, ZHU Qingke, LIU Guangquan, et al . Regulation effects of runoff and sediment of ecological conservation in the upper reaches of Beiluo River[J]. Journal of Hydraulic Engineering,2010 ,41 （11 ）:1325 −1332 . （in Chinese with English abstract）[4] 姚文艺, 冉大川, 陈江南. 黄河流域近期水沙变化及其趋势预测[J]. 水科学进展,2013,24(5):607 − 616. [YAO Wenyi, RAN Dachuan, CHEN Jiangnan. Recent changes in runoff and sediment regimes and future projections in the Yellow River Basin[J]. Advances in Water Science,2013,24(5):607 − 616. (in Chinese with English abstract) doi: 10.14042/j.cnki.32.1309.2013.05.013
YAO Wenyi, RAN Dachuan, CHEN Jiangnan . Recent changes in runoff and sediment regimes and future projections in the Yellow River Basin[J]. Advances in Water Science,2013 ,24 （5 ）:607 −616 . （in Chinese with English abstract）[5] 赵广举, 穆兴民, 田鹏, 等. 近60年黄河中游水沙变化趋势及其影响因素分析[J]. 资源科学,2012,34(6):1070 − 1078. [ZHAO Guangju, MU Xingmin, TIAN Peng, et al. The variation trend of streamflow and sediment flux in the middle reaches of Yellow River over the past 60 years and the influencing factors[J]. Resources Science,2012,34(6):1070 − 1078. (in Chinese with English abstract)
ZHAO Guangju, MU Xingmin, TIAN Peng, et al . The variation trend of streamflow and sediment flux in the middle reaches of Yellow River over the past 60 years and the influencing factors[J]. Resources Science,2012 ,34 （6 ）:1070 −1078 . （in Chinese with English abstract）[6] 闫瑞, 张晓萍, 李够霞, 等. 基于RUSLE的北洛河上游流域侵蚀产沙模拟研究[J]. 水土保持学报,2017,31(4):32 − 37. [YAN Rui, ZHANG Xiaoping, LI Gouxia, et al. Soil erosion and sediment yield assessment based on RUSLE in Beiluo River on the loess plateau, China[J]. Journal of Soil and Water Conservation,2017,31(4):32 − 37. (in Chinese with English abstract) doi: 10.13870/j.cnki.stbcxb.2017.04.006
YAN Rui, ZHANG Xiaoping, LI Gouxia, et al . Soil erosion and sediment yield assessment based on RUSLE in Beiluo River on the loess plateau, China[J]. Journal of Soil and Water Conservation,2017 ,31 （4 ）:32 −37 . （in Chinese with English abstract）[7] 薛帆, 晁智龙, 何亮, 等. 近70年来不同地貌和植被类型区水沙特征演变及其对生态恢复的响应[J]. 生态学报,2023,43(8):3247 − 3260. [XUE Fan, CHAO Zhilong, HE Liang, et al. Hydrologic and sediment responses to ecological restoration in different geomorphological and vegetation type areas in past 70 years[J]. Acta Ecologica Sinica,2023,43(8):3247 − 3260. (in Chinese with English abstract)
XUE Fan, CHAO Zhilong, HE Liang, et al . Hydrologic and sediment responses to ecological restoration in different geomorphological and vegetation type areas in past 70 years[J]. Acta Ecologica Sinica,2023 ,43 （8 ）:3247 −3260 . （in Chinese with English abstract）[8] 马禹锟. 北洛河下游水资源情况及分析[J]. 陕西水利,2017(6):3 − 4. [MA Yukun. Analysis of water resources situation in the lower reaches of Beiluo River[J]. Shaanxi Water Resources,2017(6):3 − 4. (in Chinese with English abstract) doi: 10.16747/j.cnki.cn61-1109/tv.2017.06.002
MA Yukun . Analysis of water resources situation in the lower reaches of Beiluo River[J]. Shaanxi Water Resources,2017 （6 ）:3 −4 . （in Chinese with English abstract）[9] 薛亚莉. 对北洛河水资源开发利用的调查与思考[J]. 陕西水利,2010(2):21 − 24. [XUE Yali. Investigation and thinking on the development and utilization of Beiluo River water resources[J]. Shaanxi Water Resources,2010(2):21 − 24. (in Chinese with English abstract) doi: 10.3969/j.issn.1673-9000.2010.02.009
XUE Yali . Investigation and thinking on the development and utilization of Beiluo River water resources[J]. Shaanxi Water Resources,2010 （2 ）:21 −24 . （in Chinese with English abstract）[10] 张翔, 李愫. 基于主成分分析的北洛河水质时空分布特征及污染源解析[J]. 水土保持通报,2022,42(4):153 − 160. [ZHANG Xiang, LI Su. Spatial and temporal distribution characteristics of water quality in Beiluo River and pollution sources based on principal component analysis[J]. Bulletin of Soil and Water Conservation,2022,42(4):153 − 160.
ZHANG Xiang, LI Su . Spatial and temporal distribution characteristics of water quality in Beiluo River and pollution sources based on principal component analysis[J]. Bulletin of Soil and Water Conservation,2022 ,42 （4 ）:153 −160 .[11] 谢敏, 张晓明, 赵阳, 等. 北洛河流域水沙变化对降雨和土地利用的响应[J]. 中国水利水电科学研究院学报,2019,17(1):39 − 44. [XIE Min, ZHANG Xiaoming, ZHAO Yang, et al. The mechanism of response of runoff and sediment yield to precipitation and LUCC in Beiluohe River Basin[J]. Journal of China Institute of Water Resources and Hydropower Research,2019,17(1):39 − 44. (in Chinese with English abstract) doi: 10.13244/j.cnki.jiwhr.2019.01.006
XIE Min, ZHANG Xiaoming, ZHAO Yang, et al . The mechanism of response of runoff and sediment yield to precipitation and LUCC in Beiluohe River Basin[J]. Journal of China Institute of Water Resources and Hydropower Research,2019 ,17 （1 ）:39 −44 . （in Chinese with English abstract）[12] 刘二佳, 张晓萍, 谢名礼, 等. 生态恢复对流域水沙演变趋势的影响——以北洛河上游为例[J]. 生态学报,2015,35(3):622 − 629. [LIU Erjia, ZHANG Xiaoping, XIE Mingli, et al. Hydrologic responses to vegetation restoration and their driving forces in a catchment in the Loess hilly-gully area: a case study in the upper Beiluo River[J]. Acta Ecologica Sinica,2015,35(3):622 − 629. (in Chinese with English abstract)
LIU Erjia, ZHANG Xiaoping, XIE Mingli, et al . Hydrologic responses to vegetation restoration and their driving forces in a catchment in the Loess hilly-gully area: a case study in the upper Beiluo River[J]. Acta Ecologica Sinica,2015 ,35 （3 ）:622 −629 . （in Chinese with English abstract）[13] HE Yi, WANG Fei, TIAN Peng, et al. Impact assessment of human activities on runoff and sediment of Beiluo River in the Yellow River based on paired years of similar climate[J]. Polish Journal of Environmental Studies,2016,25(1):121 − 135. doi: 10.15244/pjoes/60492
[14] MANN H B. Nonparametric tests against trend[J]. Econometrica,1945,13(3):245 − 359. doi: 10.2307/1907187
[15] MCLEOD A I. Kendall rank correlation and Mann-Kendall trend test[J]. R Package Kendall,2005,602:1 − 10.
[16] HAMED K H, RAMACHANDRA RAO A. A modified Mann-Kendall trend test for autocorrelated data[J]. Journal of Hydrology,1998,204(1/2/3/4):182 − 196.
[17] HE Yi, SONG Jinxi, HU Yiyi, et al. Impacts of different weather conditions and landuse change on runoff variations in the Beiluo River Watershed, China[J]. Sustainable Cities and Society,2019,50:101674. doi: 10.1016/j.scs.2019.101674
[18] SEN P K. Estimates of the regression coefficient based on Kendall’s tau[J]. Journal of the American Statistical Association,1968,63(324):1379 − 1389. doi: 10.1080/01621459.1968.10480934
[19] NEITSCH S, ARNOLD J, KINIRY J, et al. Soil and water assessment tool theoretical documentation version 2009[R]. Texas Water Resources Institute, 2011.
[20] GASSMAN P W, REYES M R, GREEN C H, et al. The soil and water assessment tool: Historical development, applications, and future research directions[J]. Transactions of the ASABE,2007,50(4):1211 − 1250. doi: 10.13031/2013.23637
[21] LEMMA H, FRANKL A, VAN GRIENSVEN A, et al. Identifying erosion hotspots in Lake Tana Basin from a multisite soil and water assessment tool validation: Opportunity for land managers[J]. Land Degradation & Development,2019,30(12):1449 − 1467.
[22] BAKER T J, MILLER S N. Using the soil and water assessment tool (SWAT) to assess land use impact on water resources in an East African watershed[J]. Journal of Hydrology,2013,486:100 − 111. doi: 10.1016/j.jhydrol.2013.01.041
[23] 黄清华, 张万昌. SWAT分布式水文模型在黑河干流山区流域的改进及应用[J]. 南京林业大学学报(自然科学版),2004,28(2):22 − 26. [HUANG Qinghua, ZHANG Wanchang. Improvement and application of GIS-based distributed SWAT hydrological modeling on high altitude, cold, semi-arid catchment of Heihe River Basin, China[J]. Journal of Nanjing Forestry University,2004,28(2):22 − 26. (in Chinese with English abstract)
HUANG Qinghua, ZHANG Wanchang . Improvement and application of GIS-based distributed SWAT hydrological modeling on high altitude, cold, semi-arid catchment of Heihe River Basin, China[J]. Journal of Nanjing Forestry University,2004 ,28 （2 ）:22 −26 . （in Chinese with English abstract）[24] 郭军庭, 张志强, 王盛萍, 等. 应用SWAT模型研究潮河流域土地利用和气候变化对径流的影响[J]. 生态学报,2014,34(6):1559 − 1567. [GUO Junting, ZHANG Zhiqiang, WANG Shengping, et al. Appling SWAT model to explore the impact of changes in land use and climate on the streamflow in a Watershed of Northern China[J]. Acta Ecologica Sinica,2014,34(6):1559 − 1567. (in Chinese with English abstract)
GUO Junting, ZHANG Zhiqiang, WANG Shengping, et al . Appling SWAT model to explore the impact of changes in land use and climate on the streamflow in a Watershed of Northern China[J]. Acta Ecologica Sinica,2014 ,34 （6 ）:1559 −1567 . （in Chinese with English abstract）[25] 曹灿, 孙瑞, 吴志祥, 等. 基于SWAT模型的南渡江上游流域径流对气候变化的响应[J]. 水土保持研究,2022,29(2):255 − 264. [CAO Can, SUN Rui, WU Zhixiang, et al. Responses of streamflow to climate change in upstream of nandujiang river basin based on SWAT model[J]. Research of Soil and Water Conservation,2022,29(2):255 − 264. (in Chinese with English abstract) doi: 10.3969/j.issn.1005-3409.2022.2.stbcyj202202037
CAO Can, SUN Rui, WU Zhixiang, et al . Responses of streamflow to climate change in upstream of nandujiang river basin based on SWAT model[J]. Research of Soil and Water Conservation,2022 ,29 （2 ）:255 −264 . （in Chinese with English abstract）[26] DOHERTY J E, HUNT R J. Approaches to highly parameterized inversion: A guide to using PEST for groundwater-model calibration[M]. Reston: US Department of the Interior, US Geological Survey, 2010.
[27] 吴玺, 韩双宝, 李海学, 等. 鄂尔多斯盆地北洛河上游河水基流来源的识别[J]. 干旱区资源与环境,2021,35(10):161 − 168. [WU Xi, HAN Shuangbao, LI Haixue, et al. Identification of base flow source of the upper reaches of Beiluo River in Ordos Basin[J]. Journal of Arid Land Resources and Environment,2021,35(10):161 − 168. (in Chinese with English abstract) doi: 10.13448/j.cnki.jalre.2021.284
WU Xi, HAN Shuangbao, LI Haixue, et al . Identification of base flow source of the upper reaches of Beiluo River in Ordos Basin[J]. Journal of Arid Land Resources and Environment,2021 ,35 （10 ）:161 −168 . （in Chinese with English abstract）[28] 邸利, 孙鹏举, 周莉. 甘肃省坡耕地退耕的可行性与退耕还草的必要性分析[J]. 青海草业,2003,12(2):12 − 16. [DI Li, SUN Pengju, ZHOU Li. Feasibility analysis of returning cultivated land of sloping cultivated and necessity analysis of returning cultivated land to grassland in Gansu Province[J]. Qinghai Prataculture,2003,12(2):12 − 16. (in Chinese with English abstract) doi: 10.3969/j.issn.1008-1445.2003.02.003
DI Li, SUN Pengju, ZHOU Li . Feasibility analysis of returning cultivated land of sloping cultivated and necessity analysis of returning cultivated land to grassland in Gansu Province[J]. Qinghai Prataculture,2003 ,12 （2 ）:12 −16 . （in Chinese with English abstract）[29] 王凯利, 王志慧, 肖培青, 等. 气候与下垫面变化对黄土高原蒸散发变化的影响评估[J]. 水土保持学报,2022,36(3):166 − 172. [WANG Kaili, WANG Zhihui, XIAO Peiqing, et al. Assessment on the impact of climate and the changes of underlying surface on the evapotranspiration in the loess plateau[J]. Journal of Soil and Water Conservation,2022,36(3):166 − 172. (in Chinese with English abstract)
WANG Kaili, WANG Zhihui, XIAO Peiqing, et al . Assessment on the impact of climate and the changes of underlying surface on the evapotranspiration in the loess plateau[J]. Journal of Soil and Water Conservation,2022 ,36 （3 ）:166 −172 . （in Chinese with English abstract）[30] 周志鹏, 孙文义, 穆兴民, 等. 2001—2017年黄土高原实际蒸散发的时空格局[J]. 人民黄河,2019,41(6):76 − 80. [ZHOU Zhipeng, SUN Wenyi, MU Xingmin, et al. Temporal and spatial pattern of actual evapotranspiration in the Loess Plateau from 2001 to 2017[J]. Yellow River,2019,41(6):76 − 80. (in Chinese with English abstract) doi: 10.3969/j.issn.1000-1379.2019.06.017
ZHOU Zhipeng, SUN Wenyi, MU Xingmin, et al . Temporal and spatial pattern of actual evapotranspiration in the Loess Plateau from 2001 to 2017[J]. Yellow River,2019 ,41 （6 ）:76 −80 . （in Chinese with English abstract）[31] 鲁俊, 朱信华, 崔振华, 等. 北洛河流域水沙特性与变化原因[J]. 人民黄河,2018,40(3):20 − 24. [LU Jun, ZHU Xinhua, CUI Zhenhua, et al. Characteristics of flow and sediment of Beiluo River Basin and cause of its variation[J]. Yellow River,2018,40(3):20 − 24. (in Chinese with English abstract) doi: 10.3969/j.issn.1000-1379.2018.03.005
LU Jun, ZHU Xinhua, CUI Zhenhua, et al . Characteristics of flow and sediment of Beiluo River Basin and cause of its variation[J]. Yellow River,2018 ,40 （3 ）:20 −24 . （in Chinese with English abstract）[32] 谢剑, 高鹏, 穆兴民, 等. 近80年来北洛河流域径流变化特征及其归因分析[J]. 水土保持研究,2023,30(2):122 − 128. [XIE Jian, GAO Peng, MU Xingmin, et al. Variation characteristics of runoff in Beiluo River Basin over the past 80 years and its attribution analysis[J]. Research of Soil and Water Conservation,2023,30(2):122 − 128. (in Chinese with English abstract)
XIE Jian, GAO Peng, MU Xingmin, et al . Variation characteristics of runoff in Beiluo River Basin over the past 80 years and its attribution analysis[J]. Research of Soil and Water Conservation,2023 ,30 （2 ）:122 −128 . （in Chinese with English abstract）[33] 梁桂星, 覃小群, 崔亚莉, 等. 分布式水文模型在岩溶地区的改进与应用研究[J]. 水文地质工程地质,2020,47(2):60 − 67. [LIANG Guixing, QIN Xiaoqun, CUI Yali, et al. Improvement and application of a distributed hydrological model in Karst regions[J]. Hydrogeology & Engineering Geology,2020,47(2):60 − 67. (in Chinese with English abstract) doi: 10.16030/j.cnki.issn.1000-3665.201904057
LIANG Guixing, QIN Xiaoqun, CUI Yali, et al . Improvement and application of a distributed hydrological model in Karst regions[J]. Hydrogeology & Engineering Geology,2020 ,47 （2 ）:60 −67 . （in Chinese with English abstract）[34] 郭娇, 石建省, 叶浩, 等. 基于RS与GIS的麻地沟土壤侵蚀及其生态环境效应研究[J]. 水文地质工程地质,2011,38(5):92 − 97. [GUO Jiao, SHI Jiansheng, YE Hao, et al. A study of soil erosion and its eco-environment effect of Madigou based on RS and GIS[J]. Hydrogeology & Engineering Geology,2011,38(5):92 − 97. (in Chinese with English abstract) doi: 10.16030/j.cnki.issn.1000-3665.2011.05.014
GUO Jiao, SHI Jiansheng, YE Hao, et al . A study of soil erosion and its eco-environment effect of Madigou based on RS and GIS[J]. Hydrogeology & Engineering Geology,2011 ,38 （5 ）:92 −97 . （in Chinese with English abstract）[35] 陈国光, 刘红樱, 陈进全, 等. 福建长汀县水土流失的地质影响因素及防治对策[J]. 水文地质工程地质,2020,47(6):26 − 35. [CHEN Guoguang, LIU Hongying, CHEN Jinquan, et al. Geological influence factors of soil erosion in Changting County, Fujian Province and the countermeasures to prevent and control[J]. Hydrogeology & Engineering Geology,2020,47(6):26 − 35. (in Chinese with English abstract) doi: 10.16030/j.cnki.issn.1000-3665.202009027
CHEN Guoguang, LIU Hongying, CHEN Jinquan, et al . Geological influence factors of soil erosion in Changting County, Fujian Province and the countermeasures to prevent and control[J]. Hydrogeology & Engineering Geology,2020 ,47 （6 ）:26 −35 . （in Chinese with English abstract） -
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