Regional Environmental Quality Research Articles

Association of serum levels of typical organic pollutants with polycystic ovary syndrome (PCOS): a case-control study.

Is polycystic ovary syndrome (PCOS) associated with increased serum levels of typical organic pollutants? PCOS in Han females from Northern China was significantly associated with elevated serum levels of pollutants, including polychlorinated biphenyls (PCBs), organochlorine pesticides and polycyclic aromatic hydrocarbons (PAHs). PCOS is arguably the most common endocrinopathy in females of reproductive age. The etiology of PCOS is thought to be multifactorial. This was a preliminary case-control study undertaken at the Division of Reproductive Center, Peking University Third Hospital. Fifty participants affected by PCOS and 30 normal controls were recruited between August and October 2012 from Northern China. All participants were Han women. PCOS participants were diagnosed according to the 2003 Rotterdam criteria. The control participants were non-pregnant females unable to conceive solely due to male azoospermia. Serum levels of a wide range of organic pollutants, including PCBs, organochlorine pesticides, PAHs and more than 20 phenolic pollutants, were analyzed using gas chromatographic mass spectrometry. Serum levels of PCBs, pesticides and PAHs were significantly higher in the PCOS group than the control group. Concentrations of PCBs, p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE) and PAHs in serum above median levels were associated with PCOS with odds ratios of 3.81 [95% confidence interval (CI), 1.45-10.0], 4.89 (95% CI, 1.81-13.2) and 2.39 (95% CI, 0.94-6.05), respectively. Partial least-squares-discriminant analysis (PLS-DA) confirmed that serum levels of organic pollutants were associated with PCOS, especially for p,p'-DDE and PCBs. Some other possible covariates (e.g. dietary and income) were missed in this study, although education and occupation have been considered as an indicator of personal income. The PLS-DA model allowed a quasi-exposome analysis with over 60 kinds of typical organic pollutants; however, the possibility of other pollutants involved in the PCOS still could not be excluded. Our study identified that bodily retention of environmental organic pollutants-including PCBs, pesticides (especially p,p'-DDE) and PAHs-was associated with PCOS. This research was supported by the Ministry of Science and Technology of China Grants (973 program; 2014CB943203 and 2015CB553401), National Natural Science Foundation of China (21322705, 21190051, 41121004 and 81170538), National Key Technology R&D Program in the Twelve Five-Year Plan (2012BAI32B01) and the Collaborative Innovation Center for Regional Environmental Quality. There are no conflicts of interest to declare. None. This is not a clinical trial.

Regional environmental performance and governance quality: a nonparametric analysis

This paper applies nonparametric estimators to examine the effect of regional quality of government on the environmental performance in the NUTS 1 regions in France, Germany, and the UK. A novel measure on governance is used, gauging the partiality, corruption and effectiveness of government services in each region. By utilizing regional-level measures of three pollutants (CO2, CH4 and N2O), the effect of governance on environmental efficiency is analyzed. The empirical analysis suggests that there is a nonlinear relationship between regions’ governance quality levels and their environmental performance. It appears that the effect of regional quality of governance is positive up to a certain level, then turning slightly negative. This suggests that higher governance quality will not always result in increased environmental efficiency.

Regional restrictions on environmental impact assessment approval in China: the legitimacy of environmental authoritarianism

The poor enforcement and effectiveness of environmental impact assessment (EIA) on construction and investment projects in China has long been blamed for not preventing environmental pollution and degradation. At the same time, freezing EIA approval of all new projects in an administrative region, introduced in 2006 as a punishment for failing to meet regional environmental quality targets, has been regarded as an innovative administrative instrument used by higher level environmental authorities on local governments. But it also raised controversies. Applying an environmental authoritarianism perspective, this study analyzed the legitimacy and environmental effectiveness of freezing EIA approval procedures by reviewing all 25 national cases and 12 provincial cases of so-called EIA Restrictions Targeting Regions between 1 December 2006 and 31 December 2013. The results show that such an environmental authoritarian measure is to some extent environmentally effective but lacks legality and transparency towards and participation of third parties, and hence falls short in legitimacy. Legal foundations and wider third party participation are essential for the long term effectiveness of this policy and its transfer to other countries.

基于GIS重庆土壤侵蚀及土壤保持分析

PDF HTML阅读 XML下载 导出引用 引用提醒 基于GIS重庆土壤侵蚀及土壤保持分析 DOI: 10.5846/stxb201309152278 作者: 作者单位: 中国科学院生态环境研究中心 城市与区域生态国家重点实验室,中国科学院生态环境研究中心 城市与区域生态国家重点实验室,中国科学院生态环境研究中心 城市与区域生态国家重点实验室,中国科学院生态环境研究中心 城市与区域生态国家重点实验室,中国科学院生态环境研究中心 城市与区域生态国家重点实验室 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金重点项目(40901289);国家科技支撑计划课题(2011BAC09B08-02) GIS-based spatial analysis of soil erosion and soil conservation in Chongqing, China Author: Affiliation: Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences,Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences,,, Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:土壤侵蚀作为一个重大的全球环境问题,严重地威胁着区域生态环境质量和社会经济。在考虑植被覆盖度与土壤侵蚀关系的前提下,通过查表法,构建不同土地覆盖类型和不同植被覆盖度下的C值图层,并基于地理信息技术(GIS)和通用土壤侵蚀方程(USLE)估算了重庆地区土壤侵蚀量,土壤保持量和土壤保持价值。结果表明:重庆地区2010年土壤侵蚀量约为2.23 亿t/a;土壤保持量约为14.69 亿t/a。利用市场价值法,机会成本法和影子工程法评价了各类生态系统土壤保持的生态价值。研究区2010年土壤保持价值相对于2006年有所提升,2010年生态系统因防止土壤侵蚀而产生的土壤保持总价值约为6.18×105 万元,其中保持土壤养分的价值为5.44×105 万元;减少废弃地的价值为2.65×104 万元;减轻泥沙淤积灾害的价值为4.78×104 万元。各生态系统类型中,森林生态系统土壤保持价值量最大,单位面积价值最高。 Abstract:Soil erosion is an important global environmental problem that signicantly impacts regional environmental quality and the social economy. Ecosystems protect soil from water and wind erosion and thereby provide "soil erosion control services," which is one of the most fundamental ecosystem services that safeguard human welfare. Chongqing Region is one of the most important ecological zones in China, and is located on the upper reaches of the Three Gorges Reservoir Area (TGRA), which is the largest dam project worldwide. The status of the ecosystem functions in Chongqing Region directly affects the TGRA. Recently, the ecological environment of this region has rapidly changed because of extensive change in land cover, due to rapid population growth and economic development. In addition to climate change mitigation and adaption, global changes in climate have highlighted the role of ecosystems in soil conservation. Owing to a combination of natural factors and recent human activities, soil erosion in certain parts of the Chongqing Region is becoming increasingly serious. However, few studies have focused on the quantitative estimates of the soil conservation service and its ecological value in the Chongqing Region.This study aimed to construct the C value layer of different land cover types and different vegetation coverage based on the table lookup method. In addition, soil loss and soil conservation services in Chongqing Region were evaluated by geographic information system (GIS) technology and the universal soil loss equation (USLE) with localized parameters. The spatial patterns of the soil conservation service and its ecological value were revealed. The results of the study indicate that, compared to the single land cover assignment method, the improved C value layer containing more spatial information enhances the accuracy of soil erosion results. To verify that this model may be reliability applied, we validated the model results based on observed data and statistical data based on average annual estimates between 2006 and 2010. Simulations of average annual soil erosion rates agreed well with the observation-based data (R2=0.85, P=0.000), which indicated that the simulated models may be used to infer soil erosion levels in this study. The results of the models showed that the total amount of soil loss and soil conservation services in Chongqing Region are 2.23×108 t/a and 14.69×108 t/a, respectively. Furthermore, we found that the soil conservation service improved from 2006 to 2010 as a result of vegetation restoration. Moreover, market valuation, opportunity cost, and shadow engineering methods were used to evaluate the ecological value of the soil conservation service. The total value of the soil conservation service in 2010 was about 6.18×109 yuan (RMB) /a, of which, about 5.44×109 yuan was of holding nutrients for N, P and K, about 2.65×108 yuan was of decreasing soil loss, and about 4.78×108 yuan was reducing reservoir silt. In addition, ecosystems located in the counties of Wuxi, Chengkou, and Fengjie (i.e., the east mountain areas), had much better erosion control than ecosystems in the west, and generally displayed much higher ecological value than the west with a capacity of >2×108 yuan/a. Among all ecosystem types, forests were superior in the total amount and capacity of soil conservation service value. These results provide specific information that is necessary for strengthening public awareness about protecting and restoring ecosystems. 参考文献 相似文献 引证文献

An Analysis of Land Use Change Dynamics and Its Impacts on Hydrological Processes in the Jialing River Basin

Land use changes are important aspects of global change and affect regional water cycles, environmental quality, biodiversity and terrestrial ecosystems. To understand the temporal and spatial land use change in the Jialing River Basin and its impacts on the hydrological cycle, land use change models and the variable infiltration capacity (VIC) model were applied separately to the Jialing River Basin. Real change and final change were analyzed to determine the consequences of land use changes and their hydrological consequences. Real change is defined as the total variation during a fixed period, including increases and decreases. Thus, real change is the sum of the absolute values of the decrease and the increase. Final change is defined as the difference between the beginning and end of a given period for a specific factor. Overall, the amounts of settlement and shrub land area changed significantly in the entire Jialing River (with final change rates of 20.77% and −16.07%, respectively, and real change rates of 34.2% and 30.1%, respectively, from 1985 to 1995, as well as final and real change rates of 29.37%, 12.40%, 39.9% and 32.8%, respectively, from 1995 to 2000). Compared with the final change, the real change highlighted the rate of change and the change in woodland area. The land use changes in the Lueyang (LY), Shehong (SH) and Fengtan (FT) subcatchments were more dynamic than in the other subcatchments. The economy, population and macro-policy were the main factors responsible for driving the land use changes. The decrease in woodland area in the LY subcatchment corresponded with an increase in evapotranspiration (ET) and with decreases in the other hydrological elements. Overall, the final changes in the hydrological elements in the LY, SH and FT subcatchments were not significant due to the average and compensation effects. The LY subcatchment was mainly affected by the average effect, whereas the SH and FT subcatchments were affected by the average and compensation effects. The use of real change can increase the detectability of hydrological elements changes caused by land use change in SH and FT. The results of this study provide new insights regarding the examination of the effects of land use changes on hydrological regimes. These results are useful for land use planners and water resource managers.

Research on Environmental Master Factors Discrimination of Sea Area in Tianjin Port

Incremental tendency method is used to discriminate master factors of regional environmental quality. In this article, incremental tendency method has been revised. Taken Tianjinport sea area as an example, the collation of environmental quality master factors in 2012 has been listed. It is advanced that environmental quality master factors of Tianjin port sea area are mainly inorganic nitrogen and petroleum substances, and pollution management should also be aimed at these types of substances. Finally the meaning of new model in application has been explained. It provided practical basis for sustainable development of Tianjin sea area protection.

Regional Environmental Quality and Cost Efficiency of International Tourist Hotels in Taiwan

The purpose of this study is to compute the cost efficiency of international tourist hotels ( ITHs) in Taiwan and analyze how regional environmental quality affects cost efficiency. The study collects a variety of operating data of international tourist hotels in Taiwan between 1998 and 2009 from the Annual Tourist Hotels Operational Analysis Report, as published by the Tourism Bureau. The data of regional environmental quality are collected from the Taiwan Environment Data Warehouse. This study first uses data envelopment analysis ( DEA) for computing cost efficiency, and then applies the truncated regression to investigate the impact of environmental indicators on cost efficiency. Namely, it is a two-stage DEA-regression method. The empirical results indicate that the density of pungent air pollutants, such as O3 and SO2, have significantly negative impacts on the cost efficiency of ITHs in Taiwan. However, the high volume of waste disposal and low recycling rate reflect a higher business activity intensity in a region, which positively enhances ITHs’ cost efficiency.

Urbanization, Economic Development and Environmental Change

This paper applies the pressure-state-response (PSR) model to establish environmental quality indices for 30 administrative regions in China from 2003 to 2011 and employs panel data analysis to study the relationships among the urbanization rate, economic development and environmental change. The results reveal a remarkable inverted-U-shaped relationship between the urbanization rate and changes in regional environmental quality; the “turning point” generally appears near an urbanization rate of 60%. In addition, the degree and mode of economic development have significant, but anisotropic effects on the regional environment. Generally, at a higher degree of economic development, the environment will tend to improve, but an extensive economic growth program that simply aims to increase GDP has a clear negative impact on the environment. Overall, the results of this paper not only further confirm the “environmental Kuznets curve hypothesis”, but also expand it in a manner. The analysis in this paper implies that the inverted-U-shaped evolving relationship between environmental quality and economic growth (urbanization) is universally applicable.

Coal Mine Land Reclamation Measures — Open-Pit Coal Mine of Baofa Coal Co., LTD

The coal mining has brought a series of ecological and environmental problems, including the most obvious one —land damage. Coal mine land reclamation can restore and rebuild the mine ecology, improve regional environmental quality, the establishment of social - economic - naturally coordinated development of a mine, ecologically virtuous circle of green industrial ecosystem. Open-pit coal mine of Baofa Coal Co., LTD. For its current land use, based on the "land reclamation technical standards" and other relevant standards and comprehensive study of area natural and socio-economic conditions, land suitability factors, the land reclamation countermeasures of open-pit coal mine are given out.

Assessing regional environmental quality by integrated use of remote sensing, GIS, and spatial multi-criteria evaluation for prioritization of environmental restoration.

This study was an attempt to analyse the regional environmental quality with the application of remote sensing, geographical information system, and spatial multiple criteria decision analysis and, to project a quantitative method applicable to identify the status of the regional environment of the study area. Using spatial multi-criteria evaluation (SMCE) approach with expert knowledge in this study, an integrated regional environmental quality index (REQI) was computed and classified into five levels of regional environment quality viz. worse, poor, moderate, good, and very good. During the process, a set of spatial criteria were selected (here, 15 criterions) together with the degree of importance of criteria in sustainability of the regional environment. Integrated remote sensing and GIS technique and models were applied to generate the necessary factors (criterions) maps for the SMCE approach. The ranking, along with expected value method, was used to standardize the factors and on the other hand, an analytical hierarchy process (AHP) was applied for calculating factor weights. The entire process was executed in the integrated land and water information system (ILWIS) software tool that supports SMCE. The analysis showed that the overall regional environmental quality of the area was at moderate level and was partly determined by elevation. Areas under worse and poor quality of environment indicated that the regional environmental status showed decline in these parts of the county. The study also revealed that the human activities, vegetation condition, soil erosion, topography, climate, and soil conditions have serious influence on the regional environment condition of the area. Considering the regional characteristics of environmental quality, priority, and practical needs for environmental restoration, the study area was further regionalized into four priority areas which may serve as base areas of decision making for the recovery, rebuilding, and protection of the environment.

The Problems and Thinking of Planning and Construction in Rural Communities under New Urbanization

Promoting new urbanization is urban and rural development to solve the "three rural" issue, the only way to achieve modernization in rural areas, is an important way to solve the "three rural" issue is to promote balanced regional development of strong support, with the economic and social rapid development, increasing people's living standards, housing, environmental requirements are also increasing, but the face of the land uncontrolled urbanization serious regional environmental quality of urban decline, ecological damage is more common, and many other problems. Described the outstanding issues of community planning and construction of small towns and rural work under the new urbanization exist, and propose relevant measures for policy makers, builders reference.

基于变权-物元分析模型的老工业基地区域生态安全动态预警研究—以吉林省为例

生态安全预警是生态安全研究的重要内容，对维护区域生态安全具有重要的意义。老工业基地区域生态安全预警研究具有一定的特殊性和典型性，选取吉林省为研究区，基于压力、状态、响应（P-S-R）和生态、环境、经济、社会（E-E-E-S）框架模型构建生态安全预警指标体系，运用变权-物元分析模型对1991—2011年吉林省区域生态安全的预警等级进行了测度，并结合灰色系统GM（1，1）预测模型对2015年、2020年区域生态安全态势进行预测预警。研究结果表明：（1）1991--2011年，吉林省生态安全总体水平呈逐步上升的趋势，区域生态安全预警等级从“巨警”上升为“轻警”，指示灯由“红色预警”逐步变为“蓝色预警”；（2）2015年，吉林省的生态安全预警等级属于“轻警”，指示灯为“蓝色预警”，到2020年，吉林省的生态安全预警等级属于“无警”，指示灯为“绿色预警”，但具有向“轻警”变化的态势；（3）制约吉林省生态安全水平提升的主要因素包括单位面积耕地化肥负荷量、城镇化、人均水资源量、GDP增长率、第一产业占GDP比重等，这些因素应是今后生态环境保护调控的重点，本研究为吉林省经济一生态．社会可持续发展提供参考。

The Impact of Energy Consumption and Economic Development on Changes in China’s Provincial-Level Environmental Quality

Based on the features of energy consumption and economic development in China, since single pollutant can hardly express the situation of environmental pollution, we propose a pollution emissions index that can reflect the level of environmental quality, measure China’s 28 provinces’ environmental quality from 1995 to 2010 with a dynamic objective evaluation method based on the overall differences first time. Then panel data model was applied to analyze the impact of energy consumption and economic development on China’s and regional environmental quality. The results showed that emissions index varied among different regions and there was great potential for emission reduction; there was a significant positive correlation between emissions index and scale of economies and industrial structure; there was a negative correlation between emissions index and energy efficiency, energy prices and degree of opening up. Policy implications are as follows: 1) reduction policies should be made in line with local conditions; 2) the eastern region is the key areas of emissions reduction; 3) to improve energy efficiency is an important way to reduce emissions.

Simulation of Air Quality and Pollution Control Countermeasures of Chengdu Urban Agglomeration

The CMAQ model (Community Multiscale Air Quality model) was used to stimulate the atmospheric environmental quality of Chengdu urban agglomeration. The result shows that air pollutant concentration in some zones of the urban agglomeration is higher than the allowable limit of the national grade II standard. Fortunately, such zones only cover a small area. Zones where the average daily and annual PM10 concentration is higher than the allowable limit only account for 4% of the total area of Chengdu urban agglomeration. Less than 1% of the total area has the concentration of other pollutants higher than the limit. Zones with pollutant concentration higher than the limit are mainly distributed in Chengdu City, Mianyang City, and Meishan City. Pollutants emitted from the cities of Chengdu urban agglomeration shift on to and interact with each other. Therefore, the air pollutant concentration of one city is partially attributable to pollutants emitted from its own pollution sources and a part of or even most of it results from pollutants from other cities. For example, regarding PM10 in air of Deyang City, only 12% comes from its own pollution sources, and 55% comes from pollution sources of Chengdu, and the rest 29% comes from pollution sources of Mianyang. Regarding Sulfur dioxide in air of Chengdu, 59% comes from local pollution sources of Chengdu and 23% comes from pollution sources of Deyang. Other pollutants are also subject to such a rule. As in the urban agglomeration, there are zones where pollutant concentration is higher than the allowable limit, the existing pollution sources must be further controlled by setting reduction target according to the total capacity. The pollutant emission should be reduced by means of eliminating backward productivity, adjusting structure and layout of industries, and controlling pollution sources in depth to effectively improve the regional environmental air quality. At the same time, as pollutants emitted from the cities interact with each other, the 5 cities must sign a joint prevention and control agreement to collaborate in control of sulfur dioxide, nitrogen oxides, smoke and dust, and organic pollutants.

Agricultural Adaptation to a Changing Climate: Economic and Environmental Implications Vary by U.S. Region

Global climate models predict increases over time in average temperature worldwide, with significant impacts on local patterns of temperature and precipitation. The extent to which such changes present a risk to food supplies, farmer livelihoods, and rural communities depends in part on the direction, magnitude, and rate of such changes, but equally importantly on the ability of the agricultural sector to adapt to changing patterns of yield and productivity, production cost, and resource availability. Study findings suggest that, while impacts are highly sensitive to uncertain climate projections, farmers have considerable fl exibility to adapt to changes in local weather, resource conditions, and price signals by adjusting crops, rotations, and production practices. Such adaptation, using existing crop production technologies, can partially mitigate the impacts of climate change on national agricultural markets. Adaptive redistribution of production, however, may have signifi cant implications for both regional land use and environmental quality.

Bayesian univariate space-time hierarchical model for mapping pollutant concentrations in the municipal area of Taranto

An analysis of air quality data is provided for the municipal area of Taranto (Italy) characterized by high environmental risks as decreed by the Italian government in the 1990s. In the context of an agreement between Dipartimento di Scienze Statistiche—Universita degli Studi di Bari and the local regional environmental protection agency air quality, data were provided concerning six monitoring stations and covering years from 2005 to 2007. In this paper we analyze the daily concentrations of three pollutants highly relevant in such an industrial area, namely SO2, NO2 and PM10, with the aim of reconstructing daily pollutants concentration surfaces for the town area. Taking into account the large amount of sparse missing data and the non normality affecting pollutants’ concentrations, we propose a full Bayesian separable space-time hierarchical model for each pollutant concentration series. The proposed model allows to embed missing data imputation and prediction of pollutant concentration. We critically discuss the results, highlighting advantages and disadvantages of the proposed methodology.

Construction of an Indicator System for Integrated Assessment of Environmental Quality of the Dianchi Basin

There are few indicator systems available for monitoring and assessing the environmental quality of large-scale regions. We constructed an indicator system for integrated assessment of the environmental quality of the Dianchi Basin. First, the definition of regional environmental quality is determined by both the supply of materials and energy in the region and the extent to which the region is polluted. Second, the indicator categories used for assessment mainly comprise vegetation biomass and the concentrations of various pollutants. Third, owing to spatial heterogeneity of a region, evaluation of the regional environment first requires division into sub-regions, each of which should be relatively homogeneous with regard to physical conditions (e.g. marine and terrestrial) and appearance (e.g. vegetation cover). Finally, the mathematical models for assessing regional environmental quality can be built according to the relationships between the various indicators, the sub-regions and regional environmental quality. The indicator system built using this approach can reflect environmental changes over time and identifies reasons for environmental variation.

Legacy and contemporary persistent organic pollutants in North Pacific albatross

Here we report the first measurements of polybrominated diphenyl ethers (PBDE 47, 99, and 153) alongside 11 organochlorine pesticides (OCPs) and 28 polychlorinated biphenyls (PCBs) in the plasma of albatross from breeding colonies distributed across a large spatial east-west gradient in the North Pacific Ocean. North Pacific albatross are wide-ranging, top-level consumers that forage in pelagic regions of the North Pacific Ocean, making them an ideal sentinel species for detection and distribution of marine contaminants. Our work on contaminant burdens in albatross tissue provides information on transport of persistent organic pollutants (POPs) to the remote North Pacific and serves as a proxy for regional environmental quality. We sampled black-footed (Phoebastria nigripes; n = 20) and Laysan albatross (P. immutabilis; n = 19) nesting on Tern Island, Hawaii, USA, and Laysan albatross (n = 16) nesting on Guadalupe Island, Mexico. Our results indicate that North Pacific albatross are highly exposed to both PCBs and OCPs, with levels ranging from 8.8 to 86.9 ng/ml wet weight and 7.4 to 162.3 ng/ml wet weight, respectively. A strong significant gradient exists between Laysan albatross breeding in the Eastern Pacific, having approximately 1.5-fold and 2.5-fold higher levels for PCBs and OCPs, respectively, compared to those from the Central Pacific. Interspecies levels of contaminants within the same breeding site also showed high variation, with Tern black-footed albatross having approximately threefold higher levels of both PCBs and OCPs than Tern Laysan albatross. Surprisingly, while PBDEs are known to travel long distances and bioaccumulate in wildlife of high trophic status, we detected these three PBDE congeners only at trace levels ranging from not detectable (ND) to 0.74 ng/ml wet weight in these albatross.

Research on Discriminating Environmental Quality Master Factors of Tianjin Sea Area

Incremental tendency method is used to discriminate master factors of regional environmental quality. In this article, incremental tendency method has been revised. Taken Tianjin sea area as an example, the collation of environmental quality master factors in 2006 has been listed. It is advanced that environmental quality master factors of Tianjin sea area are mainly inorganic nitrogen and petroleum substances, and pollution management should also be aimed at these types of substances. Finally the meaning of new model in application has been explained. It provided practical basis for sustainable development of Tianjin sea area.

THE CO2-CONCENTRATION CHARACTERISTICS OF BEIJING OLYMPIC FOREST PARK

As one of the gases which cause the greenhouse effect, the carbon dioxide (CO2) has been a matter of concern in recent years. Beijing Olympic Forest Park (BOFP), plays a important role in improving the regional environment quality. In this paper, data of CO2 from April of 2007 to January of 2008 are presented. 11 sampling points, including 9 in the BOFP and 2 out of the park as control, were chosen and CO2-concentration was measured respectively in a clear day of April, July, November of 2007 and January of 2008. The results indicated that CO2-concentration in the BOFP have apparent characteristics of seasonal and daily, as well as spatial variation.