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| 1 | 典型草原区水资源承载能力评价方法研究显示文摘水资源承载能力评价是典型草原区生态系统得以维持的关键因素,也是牧区社会经济可持续发展的必要保障。该文提出了基于模糊评价的指标体系法、承载能力计算模型、GIS方法三种典型草原区水资源承载能力评价方法,以达茂旗为研究区域,对2009年水资源承载能力进行了评价与分析。在指标体系法中,因为人口密度较低、人口增长得到有效控制,故全旗水资源社会承载能力较强;北部的巴音花镇及满都拉镇因工业较少,其水资源承载能力经济层为承载一般的状态;在承载能力计算模型中,人口、工农业分布密集的百灵庙镇人口与经济均存在超载的情况,全旗只有巴音花镇和满都拉镇生态承载能力有富余;在基于GIS的水资源承载能力评价中,达茂旗中南部的百灵庙镇、乌克镇、石宝镇等地水资源承载能力均处于较弱甚至弱的状态,北部的巴音花镇、满都拉镇水资源承载能力则较强。三种方法的评价结果均表明达茂旗水资源承载能力较弱。 | 龙胤慧 郭中小 廖梓龙 徐晓民 刘华琳 宋一凡 | 2014 | 水土保持研究2014，21，3： | 9 |
| 2 | Preliminary Results on Hydrological and Hydrochemical Features of Kartamak Glacier Area in Mt. Muztag Ata显示文摘The variations of the meltwater runoff draining from Kartamak Glacier in Mt. Muztag Ata in China were studied by using the measured hydrological data from 1 June to 25 August 2003. The meltwater runoff is mainly affected by ambient temperature and precipitation. Meltwater and precipitation samples were collected from 10 to 23 August 2003. Their pH, EC (electric conductivity) and the major ions (Na^+, K^+, Ca^(2+), Mg^(2+), Cl^-, NO_3^-, SO_~4^(2-)) were determined. pH values showed a positive correlation with EC values for all samples. Meltwater samples were slightly alkaline. Sulfate and calcium were the dominant anion and cation in the measured ions, respectively. All the ion concentrations had inverse relationships with runoff or water level. In order to discuss the origins of dissolved chemical substances in the glacial meltwater, a principal component analysis was carried out. The results showed that water-rock interaction determined the ion components of the meltwater. | ZHAO Huabiao YAO Tandong XU Baiqing | 2007 | Journal of Mountain Science2007，4，1： | 5 |
| 3 | Spatiotemporal Modeling of Monthly Precipitation in the Upper Shiyang River Watershed in West Central Gansu,Northwest China显示文摘This paper outlines a methodology to estimate monthly precipitation surfaces at 1-km resolution for the Upper Shiyang River watershed(USRW) in northwest China.Generation of precipitation maps is based on the application of a four-variable genetic algorithm(GA) trained on 10 years of weather and ancillary data,i.e.,surface air temperature,relative humidity,Digital Elevation Model-derived estimates of elevation,and time of year collected at 29 weather stations in west-central Gansu and northern Qinghai province.An observed-to-GA predicted data comparison of 10 years of precipitation collected at the 29 weather stations showed that about 84% of the variability in observed values could be explained by the trained GA,including variability in two independent datasets.Point-comparisons of observed and modeled precipitation along an elevation-rainfall gradient demonstrated near-similar spatiotemporal patterns.A precipitation surface for USRW for July,2005,was developed with the trained GA and input surfaces of surface air temperature and relative humidity generated from Moderate Resolution Imaging Spectroradiometer sensor(MODIS) products of land surface temperature.Spatial tendencies in predicted maximum and minimum values of surface air temperature,relative humidity,and precipitation within a 2-km radius circle around selected weather stations were in close agreement with the values measured at the weather stations. | 张存杰 C.P.-A.BOURQUE 孙兰东 Q.K.HASSAN | 2010 | Advances in Atmospheric Sciences2010，27，1： | 1 |
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