经济手段防治白色污染的博弈分析

经济手段在环境管理中的作用及涉及到政府与各利益关系人之间的博弈过程。本文就政府与一次性餐具生产者，销售者之间的博弈关系，分析如何应用经济手段使其在防治“白色污染”中发挥更好的作用。     

Measurement of respiration amount of white birch(Betula platyphylla) population in the mountainousregion of Beijing

Ｍｅａｓｕｒｅｍｅｎｔｏｆｒｅｓｐｉｒａｔｉｏｎａｍｏｕｎｔｏｆｗｈｉｔｅｂｉｒｃｈ（Ｂｅｔｕｌａｐｌａｔｙｐｈｙｌｌａ）ｐｏｐｕｌａｔｉｏｎｉｎｔｈｅｍｏｕｎｔａｉｎｏｕｓｒｅｇｉｏｎｏｆＢｅｉｊｉｎｇＦａｎｇＪｉｎｇｙｕｎ，ＷａｎｇＸｉａｏｋｅ（...     

Cd对小花南芥真菌根际pH影响的研究

研究不同浓度的Cd对铅锌矿区和非矿区重金属超累积植物——小花南芥真菌根际pH的影响，以便更有效地减轻重金属污染。     

2,4,6—三硝基甲苯废水治理技术的研究进展

论述了２，４，６－三硝基甲苯废水中化学耗氧量和色度的研究进展情况，指出生化法中白腐菌综合治理２，４，６－三硝基甲苯废水的处理方法是目前极有前途的有效的技术。     

白腐菌氧化—混凝工艺处理纸浆漂白废水试验研究

报告用白腐真菌氧化—混凝工艺处理纸浆厂四段漂白混合废水的试验情况 ,在最佳工艺条件下 ,混凝处理出水CODCr、OD4 6 5分别为 1 85 .1mg/L、0 .0 0 4 2 ,去除率分别为 86 .5 %、99.4% ,实验结果表明 :白腐真菌氧化—混凝工艺对于纸浆漂白废水是一种有实用价值的处理工艺。     

磷肥厂副产氟硅酸利用的新方法

以磷肥厂副产氟硅酸为原料 ,加上碳酸钠 ,在适宜的工艺条件下反应 ,制取符合GB42 93— 84一级品的氟化钠和符合GB10 5 71— 89的白炭黑。该工艺具有原料易得、能耗低、成本低、投资省、无污染、经济效益好等优点     

白腐真菌降解造纸废水的规律研究

在白腐真菌降解造纸废水的基础上，建立降解反应模型并推导出降解参数方程，并对其进行分析。     

室内常见气传真菌孢子的细胞毒性研究

分别以MTT比色法和细胞克隆形成率实验，观察了室内常见气传真菌孢子对中国仓鼠（CHL）肺上皮细胞的存活和增殖能力的影响，并通过检测细胞培养液中乳酸脱氢酶（LDH）活力，胞内Ca^2 ,K^ 含量，观察真菌孢子对细胞膜通透性的影响，结果表明，室内常见气传真菌孢子能显影响CHL细胞的活性，并可使细胞膜通透性发生改变，引起胞内LDH外渗，细胞内外离子发生交换，细胞内K^ 浓度降低，而细胞外的Ca^2 有内流的趋势。     

Alteration in Rhizosphere Soil Properties of Afforested <Emphasis Type="Italic">Rhamnus lycioides</Emphasis> Seedlings in Short-Term Response to Mycorrhizal Inoculation with <Emphasis Type="Italic">Glomus intraradices</Emphasis> and Organic Amendment

The reestablisment of autochthonous plant species is an essential strategy for recovering degraded areas under semiarid conditions. A field experiment was carried out to assess the short-term effect of two reafforestation methods involving mycorrhizal inoculation and compost addition on soil quality parameters and Rhamnus lycioides seedling growth. The nutrient content (NPK) and enzymatic activities (dehydrogenase, urease, protease-BAA, acid phosphatase and β-glucosidase) increased and bulk density decreased in the rhizosphere soil with the organic amendment. Biomass C of rhizosphere soil increased by at least 240% with respect to the control soil after mycorrhizal inoculation and the combination of compost addition + mycorrhizal inoculation. Both mycorrhizal inoculation and composted organic residue addition increased R. lycioides seedling growth in the same proportion. In the short term, we conclude that the application of both reafforestation methods not only enhances the establishment of R. lycioides seedlings, but also improves soil quality.     

Multivariate characterization of elements accumulated in Wolfiporia extensa mushroom from Yunnan province of China

ABSTRACT

Dried sclerotia of Wolfiporia extensa have been used as medicine in Asia from Eastern Han Dynasty, and also used as traditional snack called “fulingjiabing” in Beijing, China. In this paper, 18 macro and trace elements (Ag, As, Ba, Cd, Co, Cr, Cs, Cu, Fe, Li, Mn, Ni, Pb, Rb, Se, Sr, V, and Zn) in both flesh and peel of Wolfiporia extensa from seven sites of Yunnan province in China were determined by inductively coupled plasma mass spectrometer. The average recovery rates of certified reference materials for GBW10015 (spinach leaves) ranged from 90.5 to 113%, for GBW10028 (citrus leaves) from 92.8 to 106%, and for GBW07603 (bush branch and leaves) from 83.3 to 114.6%. Generally speaking, the concentration of all elements determined was at common level. The results of this survey indicate that mineral compositions in peel were higher than in flesh. In peel, the contents of investigated trace metals in mushroom samples were found to be in the range of 1,660–13,400 µg·g^?1 dry matter (dm) for Fe and 29.6–710 µg·g^?1 dm for Mn. The mean contents of Cr, Cu, Rb, V, and Zn in peel were between 10 and 20 µg·g^?1 dm, followed by As, Co, Li, Ni, Pb, Se, and Sr with mean contents between 1 and 10 µg·g^?1 dm, while Ag, Cd, and Cs had mean contents of <1 µg·g^?1 dm. In flesh, the concentration of Fe was in the range of 54–900 µg·g^?1 dm, and it was 1.5–49 µg·g^?1 dm for Mn, followed by Ba, Cu, Rb, and Zn in the range of 1 to 10 µg·g^?1 dm, while for Ag, As, Cd, Co, Cr, Cs, Li, Ni, Pb, Se, Sr, and V it was <1 µg·g^?1 dm. The concentration of toxic elements, such as As, Cd, and Pb, in both flesh and peel was below the permissible limits of World Health Organization. However, As and Pb contents in peel were higher than the limits permitted in the Chinese Pharmacopoeia. The results of principal component analysis showed that the flesh of Wolfiporia extensa from all the seven sites of the Yunnan province tend to cluster together, most probably because the origin of mineral elements in both flesh and peel is wood substrate (old and dead pine trees).