湿地松优良半同胞家系蛋白质及糖类对水分胁迫的生理响应

为研究湿地松优良半同胞家系蛋白质及糖类对水分逆境的生理响应，采用盆栽试验和吸光度测定结合的方法，以湿地松普通种子为对照（CK），测定了七个湿地松半同胞家系在正常水分状态（土壤相对含水量为70%）、弱度水分胁迫（土壤相对含水量为55%~60%）、中度水分胁迫（土壤相对含水量为35%~40%）和强度水分胁迫（土壤相对含水量为20%~25%）条件下的可溶性蛋白质、还原性糖、可溶性糖的含量，研究结果表明：无论是不同水分梯度还是不同家系水平，蛋白质、还原性糖、可溶性糖含量的差异均达极显著性水平。随着水分胁迫程度的加剧，各家系蛋白质含量呈先升后降的趋势，在水分胁迫初期，各家系蛋白质含量增加，水分胁迫中、后期各家系蛋白含量呈直线下降；随着水分胁迫的加剧，各家系还原性糖、可溶性糖含量呈直线上升。家系1027、101、464在水分胁迫条件下具有较高的可溶性糖含量，其抗旱性较其它家系要强，是这三个家系速生、高产的生理原因之一。     

Existence of an Arbitrage about Portfolio in an Unequilibrium Market

This article has discussed the problem of an arbitrage about an portfolio in an unequilimarket and got a determinable theorem about existence of an arbitrage about an portfolio. According to this theorem,an arbitrage about portfolio is not existing if there exists a respect martignal measure.A structural result about existence of arbitrage about an portfolio in a market is gotten. All results represent the existence of an arbitrage about an portfolio is related closely to the type of market.     

Stability Analysis on Excavated High Slope of Mozong River Power Station in Wulong

The subject matter of this paper is to analyze the stability of excavated high slope. On the base of typical engineering case in Wulong, Chongqing, the geological conditions and potential failure pattern of the high slope are discussed. Then, the limit equilibrium method and the stereographic projection method are used to synthetically analyze the stability of excavated high slope. As a result, it indicates that the stability of the high slope in insufficient and some retaining structures ought to be adopted for the high slope as soon as possible.     

Comparison between Calibration Procedure and Econometric Estimation

The two methods of estimating parameter in computable general equilibrium(CGE) model are introduced and compared:the calibration procedure and econometric estimation. The conclusions are:the estimation of parameter in CGE model must use the calibration procedure coupled with the econometric estimation method;the elasticity of output with respect to labor input,the marginal expenditure share for households and price elasticity of export demand are estimated by econometric estimation method;and other parameters of the CGE model can be get by calibration procedure.     

Nash Equilibrium Mechanic of Environmental and Human Capital

The externality of surrounding is introduced into the 2-capital of economical increasing models, which includes human factors, to explore the influences of circumstances contradiction on the human capital formation. The normal and special nash equilibrium of environmental and human capital is presented through a limited boundary model of overlapping generations. The character of equilibrium trail and its economical meaning are examined. The study on the model shows that laissez faire economy will be either stagnant,growing,or collapsing in the long-run,depending on the returns of the learning technology with respect to the two kinds of capital,the initial state of economy,and the relative price of the environmental and consumption goods.     

不同农艺措施对旱地谷子水分利用效率的影响

１９８８￣１９９０年在山西省屯留试点进行了不同农艺措施对旱地谷子水分利用效率影响的研究，结果表明，肥料是影响旱地农田水分利用效率的主要因子，其次是品种、密度和播期。     

Study on the Relations between Water Resource and Prataculture Development in Five Mail Pastoral Areas in China

通过对五大牧区草原区草原资源现状及其分布、草原生产力及载畜能力以及水资源现状及开发利用潜力分析,按照国民经济发展和增加农牧民收入要求,预测2010年五大牧区草原区草业发展对水资源的需求。研究结果表明,2010年五大牧区草原区农牧民人均纯收入为3400元,其中人均畜牧业纯收入2584元,需要养殖牲畜总数16413万羊单位,饲草料需求量1198.2亿kg。牧区产草总量可达1003亿kg,载畜能力13705万羊单位。尚有2708万羊单位,年需要饲料约195亿kg,需要发展灌溉饲草料地来解决,对水资源的需求量将达到     

水分胁迫对冬小麦旗叶细胞质膜及叶肉细胞超微结构的影响

随着水分胁迫程度的加剧，冬小麦叶的膜质过氧化物丙二醛的含量升高，膜脂 酸不饱和度降低，叶肉细胞内叶绿体、线粒体的形态、结构异常，甚至裂解，质膜内陷，胞液泡化，胞壁层次减少。表明土壤水分胁迫损害小麦旗叶细胞质膜及叶肉细胞的超微结构，加速衰老进程。     

棉籽制油蒸炒工艺的自动控制与研究

介绍一种棉籽制油自动控制系统以及用于制油工艺中的检测和控制方法。在加工过程中，它可以自动调节给水量和蒸炒温度这两个重要参数，使棉籽饼内的残油率有明显降低，同时节能效果也很显著。     

增加投入实现引黄灌溉良性发展

引黄灌溉经济效益显著,但是灌区管理单位的财务收益却入不敷出。根据经济效益分析与水费收交情况,作者认为应加强水费回收,多方面集资以及深化水费改革等,以利于灌溉事业的良性发展。