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| 1 | Characteristics of Dried Soil Layers Under Apple Orchards of Different Ages and Their Applications in Soil Water Managements on the Loess Plateau of China显示文摘Negative soil water balance(i.e., water input < water output) can lead to soil desiccation and subsequently the occurrence of a dried soil layer(DSL). The DSLs are generally studied at a specific sampling depth(e.g., 500 cm), and the actual extent of DSLs remains unknown due to the challenge of collecting deep soil samples. To investigate the characteristics of actual DSLs under different ages of apple orchards and ascertain the optimal age of apple orchards for avoiding/controlling the formation of DSLs, soil samples were collected to a depth of 1 800 cm under apple orchards of different ages in Changwu on the Loess Plateau of China. As the ages increased, soil water content(SWC) and mean SWC in DSLs showed an overall decreasing trend, whereas while DSL thickness and the quantity of water deficit(QWD) in DSLs demonstrated an increasing trend. The DSL was the thickest(1 600 cm) under the 17-year-old orchard, the forming velocity of DSL thickness was the highest at the apple tree growth stage of 9–17 years(168 cm year-1), and the highest increasing velocity of QWD(-181 mm year-1) was also observed at this stage. The thickness of DSL was significantly correlated with growth age and root depth of apple trees(r > 0.88), whereas the QWD and mean SWC in DSLs were found to have no correlation with them. The optimal age of apple orchards for avoiding/controlling the formation of DSLs was about 9 years. This information provided pertinent references for the management of deep water resources by controlling the growth age of plants. | WANG Yunqiang SHAO Mingan LIU Zhipeng ZHANG Chencheng | 2015 | Pedosphere2015，25，4： | 18 |
| 2 | Evapotranspiration and its main controlling mechanism over the desert riparian forests in the lower Tarim River Basin显示文摘Evapotranspiration(ET) and its controlling mechanism over the desert riparian forests in arid regions are the important scientific basis for the water resources managements of the lower reaches of the inland rivers of China. Nearly three years of continuous measurements of surface ET, soil water content at different depths and groundwater table over a typical Tamarix spp. stand and a typical Populus euphratica stand were conducted in the lower reach of the Tarim River. The ET seasonal trends in the growing season were controlled by plant phenology, and ET in non-growing season was weak. The diurnal variations of ET resulting from the comprehensive effects of all atmospheric factors were significantly related with reference ET. The spatial pattern of ET was determined by vegetation LAI, more vegetation coverage, more ET amount. Groundwater is the water source of surface ET, and the soil water in shallow layers hardly took part in the water exchange in the groundwatersoil-plant-air system. The temporal processes of ET over the Tamarix stand and the Populus stand were similar, but the water consumption of the well-grown Populus euphratica was higher than that of the well-grown Tamarix spp. Further analysis indicates that plant transpiration accounts for most of the surface ET, with soil evaporation weak and negligible; groundwater table is a crucial factor influencing ET over the desert riparian forests, groundwater influences the processes and amounts of ET by controlling the growth and spatial distribution of desert riparian forests; quantifying the water stress of desert riparian forests using groundwater table is more appropriate, rather than soil water content. Based on the understanding of ET and water movements in the groundwater-soil-plant-air system, a generalized framework expressing the water cycling and its key controlling mechanism in the lower reaches of the inland rivers of China is described, and a simple model to estimate water requirements of the desert riparian forests is presented. | YUAN GuoFu LUO Yi SHAO MingAn ZHANG Pei ZHU XuChao | 2015 | Science China Earth Sciences2015，58，6： | 14 |
| 3 | Fractions and Bioavailability of Soil Inorganic Phosphorus in the Loess Plateau of China under Different Vegetations显示文摘植物在土壤磷营养起一个重要作用。然而,在中国的黄土高原的土壤的磷营养上的植物的效果很好没被理解。这研究被进行在中国的黄土高原揭示在植物和 phosphoru 的部分和可获得性之间的关系。22 个植物社区被调查,在不同植物华盖下面的土壤样品为土壤性质和无机的磷分别的决心是镇定的。结果证明 Leguminosae 和 Lilaceae 减少了 pH 并且当 Labiatae 和 Rosaceae 增加了 pH 并且减少时,在他们的华盖下面在土壤增加了有机物,阳离子交换能力,总数和 Olsen 磷在在他们的华盖下面的土壤的有机物,阳离子交换能力,总数和 Olsen 磷。Ca2P, Ca8P,高山和 Fe-P 的内容高度与土壤 Olsen 磷被联系。他们都在在 Leguminosae 和 Lilaceae 下面的土壤是更高级的并且在 Labiatae 和 Rosaceae 下面在土壤降低。这研究的结果显示 Leguminosae 和 Lilaceae 在土壤改进了磷营养,然而, Labiatae 和 Rosaceae 在他们的华盖下面在土壤阻碍了磷营养的改进,它将具有更多的帮助在这个区域指示植被恢复并且为土壤开发提供信息。 | WEI Xiaorong SHAO Mingan SHAO Hongbo GAO Jianlun XU Gang | 2011 | Acta Geologica Sinica(English Edition)2011，85，1： | 6 |
| 4 | Humic acid transport in saturated porous media:Influence of flow velocity and influent concentration显示文摘Understanding the transport of humic acids(HAs)in porous media can provide important and practical evidence needed for accurate prediction of organic/inorganic contaminant transport in different environmental media and interfaces.A series of column transport experiments was conducted to evaluate the transport of HA in different porous media at different flow velocities and influent HA concentrations.Low flow velocity and influent concentration were found to favor the adsorption and deposition of HA onto sand grains packed into columns and to give higher equilibrium distribution coefficients and deposition rate coefficients,which resulted in an increased fraction of HA being retained in columns.Consequently,retardation factors were increased and the transport of HA through the columns was delayed.These results suggest that the transport of HA in porous media is primarily controlled by the attachment of HA to the solid matrix.Accordingly,this attachment should be considered in studies of HA behavior in porous media. | Xiaorong Wei Mingan Shao Lina Du Robert Horton | 2014 | Journal of Environmental Sciences2014，26，12： | 3 |
| 5 | Effects of Nitrogen Nutrition and Water Deficit on Net Photosynthetic Rate and Chlorophyll Fluorescence in Winter Wheat显示文摘 | Zhouping Shangguan Mingan Shao Jens Dyckmans | 2000 | Journal of Plant Physiology2000，，1： | 2 |
| 6 | A comparison of fine root distribution and water consumption of mature Caragana korshinkii Kom grown in two soils in a semiarid region, China显示文摘 | Xiangrong Cheng Mingbin Huang Mingan Shao D. N. Warrington | 2009 | 2009 (1-2)2009，，1： | 2 |
| 7 | Response of soil CO_2 efflux to precipitation manipulation in a semiarid grassland显示文摘Soil CO_2efflux(SCE) is an important component of ecosystem CO_2 exchange and is largely temperature and moisture dependent, providing feedback between C cycling and the climate system. We used a precipitation manipulation experiment to examine the effects of precipitation treatment on SCE and its dependences on soil temperature and moisture in a semiarid grassland. Precipitation manipulation included ambient precipitation, decreased precipitation(- 43%), or increased precipitation(+ 17%). The SCE was measured from July2013 to December 2014, and CO_2 emission during the experimental period was assessed.The response curves of SCE to soil temperature and moisture were analyzed to determine whether the dependence of SCE on soil temperature or moisture varied with precipitation manipulation. The SCE significantly varied seasonally but was not affected by precipitation treatments regardless of season. Increasing precipitation resulted in an upward shift of SCE–temperature response curves and rightward shift of SCE–moisture response curves,while decreasing precipitation resulted in opposite shifts of such response curves. These shifts in the SCE response curves suggested that increasing precipitation strengthened the dependence of SCE on temperature or moisture, and decreasing precipitation weakened such dependences. Such shifts affected the predictions in soil CO_2 emissions for different precipitation treatments. When considering such shifts, decreasing or increasing precipitation resulted in 43 or 75% less change, respectively, in CO_2 emission compared with changes in emissions predicted without considering such shifts. Furthermore, the effects of shifts in SCE response curves on CO_2 emission prediction were greater during the growing than the non-growing season. | Xiaorong Wei Yanjiang Zhang Jian Liu Hailong Gao Jun Fan Xiaoxu Jia Jimin Cheng Mingan Shao Xingchang Zhang | 2016 | Journal of Environmental Sciences2016，28，7： | 2 |
| 8 | MODELING OF INTERRILL EROSION INTHE LOESS PLATEAU OF CHINA显示文摘Based on the field plots data from simulated rainfall experiments, a theoretical model for calculating the kinetic energy of a single raindrop was developed in the Loess Plateau of China Formulae for both single raindrops and rainfall events are presented in this paper.Analysis shows that overland flow and the area producing runoff on the land surface increase with the duration of rainfall, while the effects of raindrop impact on the surface of the hillslope decrease. The rate of interrill erosion decreases gradually with the rainfall duration. A physically-based formula to calculating the area of runoff production is also given in this paper The overland flow and canopy affect jointly the interrill erosion processes. The paper presents an equation to quantitatively evaluate the effect. It is concluded thats (1) the peak rate of interrill erosion is related to rainfall intensity, rainfall kinetic energy, and slope; and (2) the average rate of interrill erosion during an individual time period for variable rainfall intensity varies with the rainfall intensity, rainfall duration and runoff producing area. | Zhanbin LI Mingan SHAO & Zhanli WANG Bing SHEA (Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water resources. Yangling, Shaanxi 712100, China Xi’an University of Technology , Xi’an , Shaanxi 710048, China) | 1999 | International Journal of Sediment Research1999，14，2： | 2 |
| 9 | Integral method for estimating soil hydraulic properties显示文摘 | Shao Mingan Horton Robert | 1998 | Soil Science Society of America Journal1998，62，3： | 1 |
| 10 | Exact solution for horizontal water redistribution by general similarity显示文摘 | Mingan Shao Horton Robert | 2000 | Soil Sci Soc Am J2000，64，： | 1 |
| 11 | Distribution of soil C, N and P in three adjacent land use patterns in the northern Loess Plateau, China 显示文摘 | WEI Xiaorong SHAO Mingan FU Xiaoli | 2009 | Biogeochemistry2009，96，： | 1 |
| 12 | The effects of land use on soil N mineralization during the growing season on the northern Loess Plateau of China显示文摘 | Xiaorong Wei Mingan Shao Xiaoli Fu G?ran I. ?gren Xianqiang Yin | 2010 | Geoderma2010，，3： | 1 |
| 13 | Soil and water loss from the LoessPlateau in China 显示文摘 | Shi Hui Shao Mingan | 2000 | Journal of Arid Environ- ments2000，45，： | 1 |
| 14 | Effect of changing bulk density during water desorption measurement on soil hydraulic properties显示文摘 | Lv Dianqing Shao Mingan Robert Horton | 2004 | Soil Science2004，169，5： | 1 |
| 15 | A pre-liminary investigation of the dynamic characteristics ofdried soil layers on the Loess Plateau of China显示文摘 | Wang Yunqiang Shao Mingan Shao Hongbo | 2010 | Jour-nal of Hydrology2010，381，12： | 1 |
| 16 | Intergral method for estimating soil hydraulic properties显示文摘 | Shao Mingan Horton R | 1998 | Soil Sci Soc AM J1998，62，3： | 1 |
| 17 | A modified Green-Ampt Equation for layered soils and muddy water infiltration显示文摘 | Wang Quanjiu Shao Mingan Robert Horton | 1999 | Soil Science1999，164，7： | 1 |
| 18 | Effects of ni- trogen nutrition and water deficit on net photosynthetic rate and chlorophyll fluorescence in winter wheat显示文摘 | Shangguan Zhouping Shao Mingan Dyckmans J | 2000 | Plant Physiology2000，156，1： | 1 |
| 19 | Modified Green-Ampt models for layered soil infiltration and muddy water infiltration显示文摘 | Wang Quanjiu Shao Mingan Robert Horton | 1999 | Soil Science1999，164，7： | 1 |
| 20 | Soil and water loss from the Lo- ess Plateau in China显示文摘 | Shi Hui Shao Mingan | 2000 | Journal of Arid Environments2000，45，1： | 1 |
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