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Glacier area change and its impact on runoff in the Manas River Basin,Northwest China from 2000 to 2020

Journal of Arid Land 2024年第7期16卷 877-894页

作者： WANG Tongxia CHEN Fulong long aihua ZHANG Zhengyong HE Chaofei LYU Tingbo LIU Bo HUANG Yanhao College of Water Conservancy&Architectural Engineering Shihezi UniversityShihezi 832000China Key Laboratory of Cold and Arid Regions Eco-Hydraulic Engineering of Xinjiang Production&Construction Corps Shihezi 832000China State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower ResearchBeijing 100038China College of Sciences Shihezi UniversityShihezi 832000China

Understanding the distribution and dynamics of glaciers is of great significance to the management and allocation of regional water resources and socio-economic development in arid regions of Northwest *** this study,based on 36 Landsat images,we extracted the glacier boundaries in the Manas River Basin,Northwest China from 2000 to 2020 using eCognition combined with band operation,GIS(geographic information system)spatial overlay techniques,and manual visual *** further analyzed the distribution and variation characteristics of glacier area,and simulated glacial runoff using a distributed degree-day model to explore the regulation of runoff *** results showed that glacier area in the Manas River Basin as a whole showed a downward trend over the past 21 a,with a decrease of 10.86%and an average change rate of–0.54%/*** the increase in glacier scale,the number of smaller glaciers decreased exponentially,and the number and area of larger glaciers were relatively *** area showed a normal distribution trend of increasing first and then decreasing with *** 97.92%of glaciers were distributed at 3700–4800 m,and 48.11%of glaciers were observed on the northern and northeastern *** retreat rate of glaciers was the fastest(68.82%)at elevations below 3800 *** was a clear rise in elevation at the end of *** at different slope directions showed a rapid melting trend from the western slope to the southern slope then to the northern *** runoff in the basin showed a fluctuating upward trend in the past 21 a,with an increase rate of 0.03×10^(8) m^(3)/*** average annual glacial runoff was 4.80×10^(8) m^(3),of which 33.31%was distributed in the ablation season(June–September).The average annual contribution rate of glacial meltwater to river runoff was 35.40%,and glacial runoff accounted for 45.37%of the total runoff during the ablation *** addition,precipitation and glacial runoff had comp

关键词： glacier area glacial runoff climate change glacier boundary extraction distributed degree-day model Manas River Basin

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Teach-back健康教育在体外受精-胚胎移植助孕高龄患者中的应用

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中国当代医药 2024年第15期31卷 176-179页

作者：洪珉龙爱华刘燕华江西省赣州市妇幼保健院生殖与遗传科江西赣州341000

目的研究和分析Teach-back健康教育应用在体外受精-胚胎移植助孕高龄患者中对干预效果的影响。方法选取2022年6月至2023年8月赣州市妇幼保健院收治的80例体外受精-胚胎移植助孕高龄患者作为研究对象,采用单双数法将其分为观察组(40例)... 详细信息

目的研究和分析Teach-back健康教育应用在体外受精-胚胎移植助孕高龄患者中对干预效果的影响。方法选取2022年6月至2023年8月赣州市妇幼保健院收治的80例体外受精-胚胎移植助孕高龄患者作为研究对象,采用单双数法将其分为观察组(40例)和对照组(40例)。比较两组干预前后焦虑情绪(SAS)评分、健康教育的满意度、治疗依从性和妊娠成功率。结果两组干预前SAS评分比较,差异无统计学意义(P>0.05);两组干预后SAS评分低于本组干预前,且观察组低于对照组,差异有统计学意义(P<0.05)。观察组健康教育总满意度高于对照组,差异有统计学意义(P<0.05)。观察组治疗总依从性高于对照组,差异有统计学意义(P<0.05)。观察组妊娠成功率高于对照组,差异有统计学意义(P<0.05)。结论体外受精-胚胎移植助孕高龄患者的临床干预中实施Teach-back健康教育,可以有效改善患者的心理状态,提高患者对健康教育的满意度和对治疗的依从性,从而提高妊娠成功率,值得临床推广应用。

关键词： Teach-back健康教育体外受精-胚胎移植孕高龄应用效果

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Evaluating agricultural water-use efficiency based on water footprint of crop values: a case study in Xinjiang of China

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Journal of Arid Land 2020年第4期12卷 580-593页

作者： HAI Yang long aihua ZHANG Pei DENG Xiaoya LI Junfeng DENG Mingjiang State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower ResearchBeijing 100038China College of Water Conservancy and Architectural Engineering Shihezi UniversityShihezi 832003China Xinjiang Water Conservancy and Hydropower Planning and Design Management Bureau Urumqi 830000China

Efficient agricultural water use is crucial for food safety and water conservation on a global scale. To quantitatively investigate the agricultural water-use efficiency in regions exhibiting the complex agricultural structure, this study developed an indicator named water footprint of crop values(WFV) that is based on the water footprint of crop production. Defined as the water volume used to produce a unit price of crop(m^3/CNY), the new indicator makes it feasible to directly compare the water footprint of different crops from an economic perspective, so as to comprehensively evaluate the water-use efficiency under the complex planting structure. On the basis of WFV, the study further proposed an indicator of structural water-use coefficient(SWUC), which is represented by the ratio of water-use efficiency for a given planting structure to the water efficiency for a reference crop and can quantitatively describe the impact of planting structure on agricultural water efficiency. Then, a case study was implemented in Xinjiang Uygur Autonomous Region of China. The temporal and spatial variations of WFV were assessed for the planting industries in 14 prefectures and cities of Xinjiang between 1991 and 2015. In addition, contribution rate analysis of WFV for different prefectures and cities was conducted to evaluate the variations of WFV caused by different influencing factors: agricultural input, climatic factors, and planting structure. Results from these analyses indicated first that the average WFV of planting industries in Xinjiang significantly decreased from 0.293 m^3/CNY in 1991 to 0.153 m^3/CNY in 2015, corresponding to an average annual change rate of –3.532%. WFV in 13 prefectures and cities(with the exception of Karamay) has declined significantly during the period of 1991–2015, indicating that agricultural water-use efficient has effectively improved. Second, the average SWUC in Xinjiang decreased from 1.17 to 1.08 m^3/CNY in the 1990 s, and then declined

关键词： agricultural input climatic factors contribution rate planting structure structural water-use coefficient water footprint of crop values

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Transformation of surface water and groundwater and water balance in the agricultural irrigation area of the Manas River Basin,China

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International Journal of Agricultural and Biological Engineering 2017年第4期10卷 107-118页

作者： Yang Guang He Xinlin Li Xiaolong long aihua Xue Lianqing College of Water&Architectural Engineering Shihezi UniversityShihezi 832003China Xinjiang Production&Construction Group Key Laboratory of Modern Water-Saving IrrigationShihezi 832003XinjiangChina China Institute of Water Resources and Hydropower Research Beijing 100038China

Calculation of the water balance is very important to relieve the pressure on water resources in arid agricultural irrigation *** research focused on irrigation water balance calculations in the Manas River Basin of the southern margin of the Junggar Basin of China,and aimed to analyze the groundwater level dynamic trend and response characteristics of the basin water cycle under water-saving irrigation *** surface water and groundwater coupling model of MIKE 11-Visual MODFLOW was used to simulate rainfall runoff in mountainous areas,and quantify the contribution of water balance components in the plain irrigation *** of the delayed watershed in the mountain area was obvious,and when the river runoff exceeded 200 m^(3)/s,the error in the runoff simulation was *** water balance in the plain agricultural irrigation area was in a negative equilibrium state,and the difference between recharge and discharge was−2.65 billion m^(3).The evapotranspiration was 24.49 billion m^(3) under drip irrigation,accounting for only approximately 51%of the total *** lateral discharge of the unsaturated and saturated aquifers was 15.38 billion m^(3),accounting for approximately 32%of the total *** main reason for the groundwater decline in the irrigation area was closely related to the extraction of groundwater,because the amount of recharge and discharge in the natural state was approximately *** MIKE 11-Visual MODFLOW model produced accurate results,and the research method provided a new exploration technique to quantify the effect of water supply mode on the groundwater *** model is suitable for the management of water resources in arid areas.

关键词： water balance coupling model surface water and groundwater water saving irrigation Manas River Basin

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A cultivated area forecasting approach in artificial oases under climate change and human activities

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Journal of Arid Land 2019年第3期11卷 400-418页

作者： ZHANG Shaobo CHEN Fulong CHEN Jie WANG Jing LI Shaofei long aihua School of Water Resources and Hydropower Engineering Wuhan UniversityWuhan 430081China College of Water Conservancy&Architectural Engineering Shihezi UniversityShihezi 832000China Department of Hydraulic Engineering Tianjin Agricultural UniversityTianjin 300384China State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower ResearchBeijing 10003&China

The cultivated area in artificial oases is deeply influenced by global climate change and human ***,forecasting cultivated area in artificial oases under climate change and human activities is of great *** this study,an approach named GD-HM-PSWROAM,consisting of general circulation model downscaling(GD),hydrological model(HM),and planting structure and water resource optimal allocation model(PSWROAM),was developed and applied in the irrigation district of the Manas River Basin in Xinjiang Uygur Autonomous Region of China to forecast the cultivated area ***,the catchment export of the MIKE11 HD/NAM model was set to the Kensiwate hydrological *** results show that the downscaling effects of temperature can be fairly satisfying,while those of precipitation may be not satisfying but *** capacity of the MIKE11 HD/NAM model on the discharge in the Kensiwate hydrological station can meet the requirements of running the *** accuracy of the PSWROAM indicated that this model can perform well in predicting the change of cultivated area at the decadal *** cultivated area in the Manas River Basin under current human activities may be generally decreasing due to the climate *** the adverse effects of climate change can be weakened or even eliminated through positive human *** cultivated area in the Manas River Basin may even be increasing under assumed human activities and future climate *** effects of human activities in the future can be generally predicted and quantified according to the cultivated area trends under current human activities and the situations in the study ***,it is rational and acceptable to forecast the cultivated area tendency in artificial oases under future climate change and human activities through the GD-HM-PSWROAM approach.

关键词： GCM downscaling hydrological model cultivated area climate change human activities Manas River Basin

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Effects of timing and duration under brackish water mulch drip irrigation on cotton yield in northern Xinjiang,China

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International Journal of Agricultural and Biological Engineering 2017年第6期10卷 115-122页

作者： Wang Chunxia Yang Guang Li Junfeng He Xinlin Xue Lianqing long aihua College of Water Conservancy and Architectural Engineering Shihezi UniversityShihezi 832003China Key Laboratory of Modern Water-saving Irrigation of Xinjiang Production and Construction Corps Shihezi 832000China State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai UniversityNanjing 210098China

The brackish water is an important potential water source and has frequently been utilized to drip-irrigate cotton due to the water shortage in the arid region of Xinjiang,northwestern of *** brackish water is usually saline water with salinity ranging from 1 g/L to 5 g/L,which is widely distributed in this area,so the reasonable use of that brackish water may not only play a vital role in the local agricultural production,but also save plenty of ***,irrigation with brackish water usually causes the reduction of crop yield and soil salinization which can negatively impact plants through three major components:osmotic,nutritious and toxic ***,a field experiment,with eight different time-series irrigation modes using brackish water(3.5±0.2)g/L and freshwater(<1 g/L),beneath a combined film and drip-irrigation system was carried out to study the changes of soil salt content and cotton yield aiming to search for a balanced method during the 2 cotton growing seasons in 2012 and *** results indicated that the time-series irrigation modes determined the soil salinity and moisture distribution based on observed spatio-temporal distribution of water content and electric conductivity,and soil salinity generally gathered at the depth of 0-10 cm and 60 cm of soil with the increase of irrigation ***,the results demonstrated that the yields of cotton which was grown using brackish water and freshwater were better than those only using freshwater and the soil salinity with reasonable irrigation timing was not accumulated obviously.

关键词： brackish water mulch drip irrigation timing and duration for irrigation irrigation scheduling cotton

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Land use change characteristics affected by water saving practices in Manas River Basin,China using Landsat satellite images

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International Journal of Agricultural and Biological Engineering 2017年第6期10卷 123-133页

作者： Yang Guang Chen Dong He Xinlin long aihua Yang Mingjie Li Xiaolong College of Water Conservancy and Architectural Engineering Shihezi UniversityShihezi 832000China Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Production and Construction Corps Shihezi 832000China China Water Resources&Hydropower Science Research Institute Beijing 100038China

The characteristics and influencing factors of land use change under arid conditions were studied in the Manas River Basin in Xinjiang Region,Northwest *** satellite images acquired in 1976,1990,2000,2010 and 2015 over the study area were used as basic *** use change,the rate of change of land use,land use transfer and other aspects revealed the characteristics of land use change and related factors as influenced by water conditions in the *** results showed that:(1)Over nearly 50 years,land reclamation in the Manas River Basin resulted in the rapid expansion of an artificial oasis area,and promoted the process of‘oasis urbanization’,and accelerated the development of the river basin economy.(2)In 2000,the popularization of drip irrigation under mulch technology led to the rapid growth of cultivated land and development land in the ***,the water table declined in the desert area of the lower reaches of the river basin,and the area occupied by sparse shrub forest and grassland decreased.(3)Before popularization of water-saving technology,woodland,grassland and development land transformed to cultivated land in the amounts of 93.46 km^(2),2542.93 km^(2) and 137.53 km^(2),respectively,and woodland transformed in the amount of 189.64 km^(2).After water-saving technology was popularized,woodland,grassland and development land were transformed into cultivated land in the amounts of 567.41 km^(2),1756.2 km^(2) and 37.36 km^(2),respectively.(4)The popularization of water-saving technology made the dynamic degree of cultivated land and development land more active,and further increased landscape fragmentation and landscape *** level of urbanization development,the level of economic development and the dry humidity of the basin became the main factors affecting the change of land use in the basin.

关键词： land-use change spatial characteristics influencing factor Manas River Basin Landsat satellite images

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Coupling analysis of social-economic water consumption and its effects on the arid environments in Xinjiang of China based on the water and ecological footprints

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Journal of Arid Land 2020年第1期12卷 73-89页

作者： ZHANG Pei DENG Mingjiang long aihua DENG Xiaoya WANG Hao HAI Yang WANG Jie LIU Yundong State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower ResearchBeijing 100038China Xinjiang Water Conservancy and Hydropower Planning and Design Management Bureau Urumqi 830000China College of Water Conservancy and Architectural Engineering Shihezi UniversityShihezi 832003China College of Soil&Water Conservation Beijing Forestry UniversityBeijing 100083China

In arid areas,ecological degradation aroused by over-exploitation of fresh water,expansion of artificial oasis and shrinkage of natural oasis,has drawn attention of many scholars and *** water and ecological footprints can be used to quantitatively evaluate the water consumption of social-economic activities and their influence on the *** addition,increase of the water footprint indicates the expansion of artificial oasis,and the influence on the natural oasis could be reflected by the variation of the ecological *** study was conducted to answer a scientific question that what is the quantitative relationship between the expansion of the artificial oasis and the degradation of the natural oasis in the arid environments of Xinjiang,***,based on the social-economic data,water consumption data and meteorological data during 2001–2015,we calculated the water and ecological footprints to express the human-related pressure exerted on the water resources and arid environments in Xinjiang(including 14 prefectures and cities),and explore the relationship between the water and ecological footprints and its mechanism by using the coupling analysis and Granger causality *** results show that both the water and ecological footprints of Xinjiang increased significantly during 2001–2015,and the increasing rate of the ecological footprint was much faster than that of the water *** coupling degree between the water and ecological footprints was relatively high at the temporal scale and varied at the spatial *** the 14 prefectures and cities examined in Xinjiang,the greater social-economic development(such as in Karamay and Urumqi)was associated with the lower coupling degree between the two *** in the water footprint will cause the ecological footprint to increase,such that a 1-unit increase in the consumption of water resources would lead to 2–3 units of ecological *** quantitative rela

关键词： water consumption ecological footprint water footprint Granger causality test natural oasis artificial oasis Tarim River

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Land use/cover and landscape pattern changes in Manas River Basin based on remote sensing

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International Journal of Agricultural and Biological Engineering 2020年第5期13卷 141-152页

作者： Xiaolong Li Xinlin He Guang Yang Hongguang Liu aihua long Fulong Chen Bing Liu Xinchen Gu College of Water&Architectural Engineering Shihezi UniversityShihezi 832000XinjiangChina Xinjiang Production&Construction Group Key Laboratory of Modern Water-Saving Irrigation Shihezi 832000XinjiangChina Department of Water Resources China Institute of Water Resources and Hydropower ResearchBeijing 100038China

Large-scale water and soil development in inland river basins in arid areas has made changes in landscape composition and structure,threatening the ecological *** order to study the trend of land use/cover and landscape pattern change and its relationship with water resources utilization in Manas River Basin,the land-use data of five periods in 1976,1990,2000,2010 and 2015 were *** results showed that:(1)During 1976-2015,farmland and construction land continuously increased,forest land and grassland continuously decreased,the water area initially reduced and then increased,the area of saline-alkali land initially increased and then reduced,the overall trend of unused land and the sandy area was decreasing and the area of different time periods is *** areas of land-use types either increased or *** indicates that the landscape pattern of the basin changes dramatically,and human activities are the main reasons for this phenomenon;(2)The oasis area increased from 3480.2 km2 in 1976 to 7982.0 km2 in 2015,with an obvious increasing *** oasis area clearly increased during 1976-1990,the growth rate was 40.6%,the growth rate of the oasis area was 129.4%.In the last 40 years,the degree of desertification fluctuated and *** increase of the oasis area directly leads to the increase of water resources utilization and aggravates the degree of water resources shortage;(3)The pattern of land-use types showed a non-equilibrium *** the region with increasing landscape heterogeneity,the overall landscape pattern was increasingly controlled by the majority of *** intensive land management model and drip irrigation under mulch have improved the utilization efficiency of water resources and saved water resources from engineering renovation and irrigation management.

关键词： arid area Manas River Basin land use/cover change landscape pattern remote sensing driving force

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Morphology-dependent activation of hydrogen peroxide with Cu_(2)O for tetracycline hydrochloride degradation in bicarbonate aqueous solution

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Journal of Environmental Sciences 2024年第3期137卷 567-579页

作者： Xiuying Liu Qianna Xia Jiao Zhou Bowen Li Shuaiqi Zhao long Chen Aimal Khan Xiaoxia Li aihua Xu School of Chemistry and Chemical Engineering Wuhan Textile UniversityWuhan 430200China Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing and Finishing Wuhan Textile UniversityWuhan 430200China School of Environmental Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China

The design of efficient heterogeneous catalysts in bicarbonate-activated hydrogen peroxide systems(BAP)is a hot topic in wastewater *** this work,Cu_(2)O nanoparticles with different morphologies including cubic shape(c-Cu_(2)O),octahedron shape(o-Cu_(2)O)and spherical shape(s-Cu_(2)O),were applied in BAP for the first time to degrade tetracycline hydrochloride(TC).Compared with Cu^(2+)ions and CuO,TC degradation was boosted in the presence of Cu_(2)O in the BAP system,with the degradation rate following the order c-Cu_(2)O>o-Cu_(2)O>s-Cu_(2)*** morphology-dependent effects could be linearly correlated with the ratio of surface oxygen species(O_S),but not with the surface area or Cu(Ⅰ)*** c-Cu_(2)O catalyst with exposure of(100)facets contained 76.6%O_Sas the active site for H_(2)O_(2)adsorption and activation,while the value was much lower for o-Cu_(2)O and s-Cu_(2)O with dominant(111)*** presence of HCO_(3)-enhanced the interactions among Cu_(2)O,H_(2)O_(2)and TC,leading to facile oxidation of Cu(Ⅰ)to Cu(Ⅱ)by H_(2)O_(2),and the formation of various reactive species such as hydroxyl radicals and Cu(Ⅲ)contributed to TC *** work provides a new method for enhancing H_(2)O_(2)activation with heterogeneous catalysts by crystal facet engineering.

关键词： Hydrogen peroxide Bicarbonate Cu_(2)O Morphology-dependent effects

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