条（白蜡条）农间作生态经济效益与配置

根据二十多年来的调查研究,着重论述条农间作在改变生态环境、提高作物产量、增强物质能量循环以及生物效应和经济效益等方面的作用,为条农间作的合理配置、类型划分提出理论依据.     

豆科植物施磷对土壤酸化影响的研究

用9个豆科植物为供试材料，测定在缺磷的砂土上施用Ca（H2PO4）2对9种植物产酸量的影响．研究结果表明：Lupinusalbus，lupinuslutens和Biserrulapelecinus对增施磷肥的需求量比Ciceraritimum,Viciafaba，Medicagopolymorpha,Ornithopussativus和Trifoliumsubterraneun低，而Lupinusangustifolius需求量最高.当增施磷肥，使其达到适度水平时，比酸度有所增加，但进一步增施磷肥则使植株产酸量减少．在几种豆类植物中，C．arietinum产酸量最高，B．pelecinus最低．比酸度与过量阳离子、灰碱、钙和镁等浓度有关．在不考虑施磷和植物种类的情况下，植物产酸总量与植株地上部分过量阳离子总量恰好一致；在施磷量不同的情况下，豆科植物产酸量主要由其吸收阳离子和阴离子的差异决定．     

水曲柳人工幼林高生长节律的研究

通过对水曲柳人工幼林的高生长进行定时、定位观测,运用多元分析方法分析了水曲柳幼林的高生长在生长季节内的动态变化,其中,高生长量最大值出现在6月份,占全年总生长量的61.24％;在此基础上,确定了其生长速度的拐点。最后把人工水曲柳幼林的高生长划分为五个生长阶段,即:初生期、缓慢期、速生期、下降期和终止期。     

IPB及PXE有害工业垃圾焚烧条件的研究

本文论述焚烧法处理电力电容器厂含绝缘油(IPB和PXE)的有害工业垃圾,设计制作了具有一定特色的机械焚烧炉,通过多次运行试验探索出适宜的焚烧工艺条件。     

渭北旱塬花椒灌溉效应研究

利用试验资料分析了不同水文年份、灌水时间、耗水量对花椒产量、水分利用效率(WUE)、品质及新生枝条生长量的影响,结果表明:在无灌溉条件下,降水量较多的年份花椒产量较高;干旱年份,在水量缺乏的情况下,应把有限的水量灌到果实膨大期,保证果实膨大期的花椒需水,不仅可以获得较高的产量及WUE,而且可以获得较好的花椒品质;枝条生长量与生长期水分供应有关,充足的水分供应,可保树势健旺。同时为便于花椒需水量计算,确定出花椒的作物系数为0.91。     

“三个代表”和社会主义本质

江泽民同志“三个代表”的思想,继承了《共产党宣言》中的科学社会主义原则,进一步发展了邓小平建设有中国特色的社会主义理论,站在新的历史高度,对社会主义本质作了新的阐述,是对科学社会主义发展历史进程的科学概括。     

Experimental Analysis High calcium Fly Ash Geopolymers Solidification/Stablization of Heavy Metals

Utilization of high calcium fly ash geopolymer to solidify/stabilize heavy metals was explored. The solidification/stabilization effectiveness of heavy metals was studied using static and dynamic leaching experiments. Additionally, transferring mechanism and long term safety of heavy metals in geopolymer were also investigated. The results show that the leaching concentrations of heavy metals from the solidified/stabilized matrix were far lower than the limit values, and all the solidified/stabilized ratios of heavy metals reached 98% when the geopolymer solidified/stabilized 0.025% Pb(II), 0.025% Cr(VI), and 0.01% Hg(II), respectively. The results Dynamic leaching experiment show that real time leaching concentrations of heavy metals were lower than allowable maximum values, and the accumulated leaching concentrations became stable after 72 h. After dynamic leaching experiment, the radial distributions of heavy metals in geopolymer specimens were similar. Effective diffusion coefficient and dynamic leaching ratios of heavy metals from geopolymer were very low, and this geopolymer has a good long term safety.     

Using Garbage Incinerator in Recycling Disposal of Fly Ash Technology Research

The technology of incinerator fly ash as the main material and the core carbonaceous reducing agent, and the necessary absorption of chlorine and catalyst made of composite pellets, Into the garbage incineration furnace temperature reduction decomposition of dioxin, heavy metal forming glassy slag. The fly ash harmless treatment, fly ash in the incineration plant in their complete closed circulation waste disposal to achieve, Provides the optimum technical route for the treatment of MSW fly ash.     

克拉玛依地区主要树种干部热值与碳含量特征分析

采用量热法、干烧法、干灰化法对克拉玛依地区50个主要树种(乔木34种,灌木16种)干部的热值、碳含量、灰分含量进行研究.结果表明:50个主要树种干部的热值在17.753 ～19.112 kJ·g-1之间,均值为18.285 kJ·g-1,柠条、樟子松相对较大,分别为19.112,19.025 kJ·g-1;碳含量在44.57％ ～50.35％之间,均值为48.88％,以倒榆的碳含量最高(50.35％),其次为樟子松(50.34％)、黑果枸杞(50.11％)、大果沙棘(50.00％);灰分含量在0.29％～2.34％之间,均值为0.82％,胡密杨灰分含量最高(2.34％),樟子松最低(0.29％).在生活型方面,34种乔木干部的平均热值为18.256 kJ·g-1,16种灌木为18.335 kJ·g-1,碳含量分别为48.86％和48.87％,灰分含量分别为0.82％和0.81％,皆不存在显著性差异(P＞0.05).热值与碳含量之间存在极显著的正相关关系(P＜0.01),热值与灰分含量、碳含量与灰分含量之间的相关性不显著(P＞0.05).聚类分析结果将50种树木分成4个大类,其中柠条和樟子松为高热值、高碳含量树种,黑果枸杞、卫矛、紫丁香、杜梨、沙枣、大果沙棘、桑树、李为较高热值、较高碳含量树种,其余树种的热值和碳含量则较低.     

Effect of tire rubber ash and zinc sulfate on yield and grain zinc and cadmium concentrations of different zinc-deficiency tolerance wheat cultivars under field conditions

The aims of these field experiments were to investigate the effectiveness of soil application of rubber tire ash in comparison with soil and foliar applications of zinc (Zn) sulfate to increase Zn and decrease cadmium (Cd) concentrations in wheat grain. A two-year field experiment was conducted during the 2007–2008 and 2007–2008 growing seasons at Isfahan research field, Iran. Ten different Zn-efficiency bread wheat cultivars (Triticum aestivum L.) commonly cultivated in different parts of Iran were subjected to no Zn fertilizer addition (control), soil application of 40 kg ha⁻¹ ZnSO₄, soil application of 100 (for the first year) and 250 (for the second year) kg ha⁻¹ waste rubber tire ash, foliar application of Zn at the mid tillering stage, and foliar application of Zn at the early anthesis stage. In the foliar application, ZnSO₄ was sprayed at a rate of 0.66 kg Zn/ha. Foliar spray of zinc sulfate at early anthesis, in general, had no significant effect on the yield and grain Cd while significantly increased grain Zn concentrations of most cultivars. On average, the foliar Zn treatment at the mid tillering stage (0.66 kg Zn/ha), decreased the mean grain Cd concentration from 0.032 mg kg⁻¹ in the control treatment to 0.024 mg kg⁻¹. While the grain Zn concentrations of some cultivars increased with soil application of Zn sulfate, they were not affected or even decreased in other cultivars. For most studied wheat cultivars, pre-planting application of rubber tire ash in soil resulted in a significant decrease of grain Cd concentrations. The results show that the effectiveness of soil and foliar application of Zn on yield and grain Zn and Cd concentrations greatly depends on the cultivar. The currently recommended rates of soil applications of Zn to ameliorate Zn deficiency are sufficient to increase grain Zn and decrease grain Cd concentrations in some wheat cultivars, while they do not in the others. In this study, soil application of 250 kg rubber tire ash/ha and foliar spray of 0.66 kg Zn/ha at tillering stage were the most effective treatments to ameliorate Zn deficiency and to increase Zn and decrease Cd concentration in grains of most wheat cultivars.