土壤生物

In order to maintain its normal life activity in adverse circumstance, the microorganism can strengthen its metabolizing intensity.

从本研究的结果及前人的研究结果来看，重金属污染胁迫下土壤的微生物生态效应，在土壤微生物生物量、生理生化代谢活性、种群结构及其动力学特征以及生物修复的机理等基础理论和应用研究上取得了一定的研究成果。

The δ〓C values of cave pond and soil respired CO〓 become light with air temperature increasing, because organism activity is more intensive when temperature increase. 2. The temporal evolution of stable carbon isotope in karst cave system The δ〓C values of plants in October are heavier than those in July.

只有洞穴塘中水DICδ〓C值和月平均气温成相反的变化规律；土壤呼吸CO〓δ〓C值对月均温响应较为明显：月平均温度越高，土壤呼吸CO〓δ〓C值越偏轻，反映了温度较高的时候土壤层中的生物活动较强烈。

The results revealed that the crown canopy can effectively retainrainfall, the mulch can intercept runoff, and the roots comprehensive functions being so significant, hence the measure is worth spreading for slopeland control in local area.

本文通过对张家口地区生物措施在减弱和控制土壤侵蚀中的原因及效用分析，结果表明林冠可有效截流降雨，枯枝落叶可有效拦蓄地表径流，植物根系可固结土壤，减小冲刷，综合作用显著，很值得在当地的坡地治理中推广应用。

In this study, we take severely soil eroded land, ban forest (as the control I ecosystem after planting Pinus massoniana and baned) and a mixed forest of Cunninghamia Lanceolata plantation and Pinus massoniana (as the control II ecosystem after planting a mixed forest of Cunninghamia Lanceolata plantation and Pinus massoniana and taking engineering restoration measurement)for study.

本文以未治理的侵蚀地作为对照，以在侵蚀地上营造马尾松并封禁管理以及通过工程措施后种植杉木—马尾松混交林为研究对象，通过野外观测和实验室分析，研究了不同恢复措施对土壤结构、土壤化学性质、群落生物量、植物养分、生物多样性的影响。

In this paper, some basses and methods are established for these evaluations by selecting proper index and using the geographical point of soil phosphorus equilibrium.

土壤磷素地理平衡点指在特定的地理生物气候背景下，土壤磷素系统循环达到相对稳定平衡时的量化指标的数量水平，它的指标选取和求取方法应根据研究目的需要来确定。

A field trial for plant density has been used for practical remediation in 2004 and 2005, it has four treatments, 10 cm×10 cm、20 cm×20 cm、10 cm×40 cm and 40 cm×40 cm, respectively. The results were follows: the optimization plant density was 20 cm×20 cm; Peteris vittata L. was a herbaceous plant fit to adequacy increased density for enhancing the biomass and removalling of arsenic; with increased the plant density, the plant were accumulated more proportion arsenic in their fronds, and then made promote the efficiency of arsenic removal from contaminated soils.(2) It was a complicated pyrolysis course for plant incineration.

1在10cm×10cm、20cm×20cm、10cm×40cm与40cm×40cm 4个种植密度下，利用蜈蚣草对砷污染土壤进行了2年的田间实际修复，得出如下结论：蜈蚣草是一种适宜于密植的草本植物，具有通过提高栽培密度来提高其地上部生物产量的潜力；同时蜈蚣草密植有利于促使其吸收的砷向地上部富集，从而有利于进一步提高其对砷污染土壤的修复能力；综合考虑修复过程中的收获方式、经济成本与可操作性，在4个密度处理中密度20cm×20cm为蜈蚣草的最佳栽培密度。

An investigation on radionuclide accumulation by native halophytes and its influencing factors,plant variety and parts,soil K content and profile contribution of radionuclide,was carried out for the feasibility of radionuclide phytoremediation at a radionuclide contamination site,in China.

本研究在某放射性典型污染区域取样，测量了该区域盐生植物及其生长土壤的137Cs含量，以生物富集系数为指标，分析了不同核素土壤分布、K元素含量等因素对BC值的影响。

Aimed at the increasing eco-environmental problems, including water shortage, water pollution, soil salinization, water loss and soil erosion, loss of function of the channel and river, biocenose degradation, etc, which severely infected the sustainable development for irrigation area, the main works in this paper are summarized as followed: constituting the measures of water resources shortages for developing agricultural water-saving technologies and adjusting agricultural structures; constructing the water polluting control and purification system of Mushroom lake: source control and decrement-sewage collection and treatment - channel ecological interception - wetland treatment -reservoir purification; putting forward the systematic projects for soil salinization and water loss and soil erosion of the integrated application of water conservancy agriculture and forestry.; constructing the ecological impervious channel model in west bank, from all of which theoretical bases and technical support for the eco-environmental rehabilitant in Manasi irrigation area were offered. All of these works were based on data collection, technical analysis, on-the-spot investigation, experimental research and technical development about Manasi irrigation area, etc.

通过对玛纳斯河灌区进行资料查阅收集、理论分析、现场勘察、试验研究和技术开发等途径，针对玛纳斯河灌区存在的水资源短缺、水体污染、土壤盐渍化、水土流失、沟渠河道功能缺失、生物群落退化等日益突出的严重影响灌区可持续发展的生态环境问题，制定了发展农业节水技术、调整农业结构的灌区水资源短缺的措施，构建了&源头控制减量-污水收集处理-引水调控-渠道生态截留-湿地生态处理-库区生态净化&的蘑菇湖水污染控制与净化系统；提出水利、农业、林业综合应用的灌区土壤盐渍化、水土流失问题的综合治理方案；构建了西岸大渠生态防渗型渠系模式，为玛纳斯河灌区生态环境修复建设提供了理论基础和技术支持。

Mycorrhiza has many positive function such as promote the degradation and transformation of the organic pollutant, promote the growth of plant in the contaminate soil, repair the organic contaminate oil and so on.

菌根在促进有机污染物的降解和转化、促进污染土壤中植物的生长、有机污染土壤的生物修复等方面具有积极的作用。

Cv. for studying their effect on restraining soil salt content in Jing-tai Yellow River irrigation areas.

的田间试验，测定各处理不同土层的土壤可溶性盐分和盐离子含量，研究了其对景泰县引黄灌区土壤盐分的生物抑制效应。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。