津河水系的修复对天津城市生态环境的影响

针对天津城市生态环境特点和北方城市大气污染现状 ,探讨了津河水系的修复对改善城市环境质量 ,丰富城市景观以及修复城市生态环境的重要意义。

Prognositic value of anoikis and tumor immune microenvironment-related gene in the treatment of osteosarcoma

Objective:Osteosarcoma is a highly aggressive primary malignant bone tumor commonly seen in children and adolescents,with a poor prognosis.Anchorage-dependent cell death(anoikis)has been proven to be indispensable in tumor metastasis,regulating the migration and adhesion of tumor cells at the primary site.However,as a type of programmed cell death,anoikis is rarely studied in osteosarcoma,especially in the tumor immune microenvironment.This study aims to clarify prognostic value of anoikis and tumor immune microenvironment-related gene in the treatment of osteosarcoma.Methods:Anoikis-related genes(ANRGs)were obtained from GeneCards.Clinical information and ANRGs expression profiles of osteosarcoma patients were sourced from the therapeutically applicable research to generate effective therapies and Gene Expression Omnibus(GEO)databases.ANRGs highly associated with tumor immune microenvironment were identified by the estimate package and the weighted gene coexpression network analysis(WGCNA)algorithm.Machine learning algorithms were performed to construct long-term survival predictive strategy,each sample was divided into high-risk and low-risk subgroups,which was further verified in the GEO cohort.Finally,based on single-cell RNA-seq from the GEO database,analysis was done on the function of signature genes in the osteosarcoma tumor microenvironment.Results:A total of 51 hub ANRGs closely associated with the tumor microenvironment were identified,from which 3 genes(MERTK,BNIP3,S100A8)were selected to construct the prognostic model.Significant differences in immune cell activation and immune-related signaling pathways were observed between the high-risk and low-risk groups based on tumor microenvironment analysis(all P<0.05).Additionally,characteristic genes within the osteosarcoma microenvironment were identified in regulation of intercellular crosstalk through the GAS6-MERTK signaling pathway.Conclusion:The prognostic model based on ANRGs and tumor microenvironment demonstrate good predictive power and provide more personalized treatment options for patients with osteosarcoma.

庙岛群岛海域光棘球海胆生态的初步研究

庙岛群岛的光棘球海胆主要分布于北四岛（南、北隍城岛，大、小钦岛），砣矶岛及大、小竹山岛等，而南五岛极少分布。砣矶岛的海胆多是２～３年生壳径４～６ｃｍ的个体，海胆性腺成熟期为７月中旬至８月中旬，性腺发育与水温、栖息场和饵料等有关。海胆体重随季节而变化，繁殖季节体重Ｗ（ｇ）与壳径Ｄ（ｃｍ）相关，Ｗ＝２．５８２Ｄ２．０３４（ｒ＝０．８７），性腺重ＧＷ（ｇ）与壳径Ｄ（ｃｍ）关系为ＧＷ＝０．０４０３Ｄ３．０８２８（ｒ＝０．８２７３），壳径Ｄ（ｃｍ）与壳高Ｈ（ｃｍ）呈线性关系Ｈ＝０．５２２５Ｄ＋０．０６６８（ｒ＝０．９０７８）。壳径生长随年龄而变慢，２．８ｃｍ的幼海胆年增长２．１ｃｍ；６．１ｃｍ的成海胆年增长０．４３ｃｍ。光棘球海胆嗜食海带和裙带菜，平均日摄食量６．０ｃｍ的海胆为２．６ｇ，４．０ｃｍ的为１．３４ｇ，３．１ｃｍ的为１．３ｇ，幼海胆摄食率较高的原因是因其生长发育快速，活动强度和代谢水平高。

家兔秋冬安全饲养管理

1检修笼舍。防寒保暖兔舍窗户要装上玻璃或钉上薄膜，门挂好草、棉帘，防止冷风侵袭兔舍。兔舍内的温度保持在5℃以上。2除湿去潮，保持干燥为了除湿去潮，保持干燥，可撒些草木灰或生石灰，这样既可以除潮，又有利于兔舍的消毒与保暖。3增加垫草厚度，提高床湿为了给家兔创造一个温暖舒适的休养生息环境，可以在兔床上增加一些柔软的垫草，并经常对垫草进行翻晒或更换，以利于兔床的防寒保暖。

月度新闻

1珠江禁渔期结束 本刊讯：6月1日，为期2个月的珠江禁渔期正式结束。禁渔期间珠江流域的广东、广西、云南、贵州、湖南和江西6省（区）共放流鱼苗2780多万尾，投入资金876万元，为开捕后渔民增产增收奠定了良好基础，同时为流域水生生物资源提供了一个良好的休养生息环境，缓解了流域水生生物资源进一步衰退的态势。此次珠江禁渔，涉及流域6省（区）38个市、200个县，禁渔渔船28573艘、渔民114874人。

基于可持续发展理念的道路建设——以德国为例

在道路的建设中怎么样才能够做到保护生态环境,以此来实现符合现实要求的可持续发展的目标。这已经成为本世纪世界上各个国家所采用的道路政策需要面临着的急需解决的问题。不管怎么说,如果想要建设道路,那么生态环境在一定程度上势必就会受到影响,这种说法是经过准确的分析才得出的结果,根据德国、荷兰等国家在道路的建设中针对自然生态环境的合理保护、生物生息环境的创造还有生态系统保全的相关技术和方法,在本文中,通过分析种种现实,在环境的可持续发展理念的道路建设的前提之下,笔者提供了一些相对有用且易于实施的策略。

大兽出山之谜

1雄伟、壮丽、峰峦叠嶂的秦岭山区,是一个博大的森林公园。雨量充沛,气候湿润,满目葱笼,清溪悠悠。复杂的自然环境不口浩瀚的密林,为大熊猫、金丝猴、羚牛、锦鸡等珍禽异兽创造了良好的繁衍生息环境和丰富的食物资源。 秦岭北麓的渭河平原南缘,正是被秦岭山脚下溢出的股股清冽琼液,划成道道黄土高坡,又养育了这里一代又一代勤劳善良的农民。

Eco-Environmental Vulnerability Evaluation in the Yellow River Basin,China

Using remote sensing(RS)data and geographical information system(GIS),eco-environmental vulnerability and its changes were analyzed for the Yellow River Basin,China.The objective of this study was to improve our understanding of eco-environmental changes so that a strategy of sustainable land use could be established.An environmental numerical model was developed using spatial principal component analysis(SPCA)model.The model contains twelve factors that include variables of land use,soil erosion,topography,climate,and vegetation.Using this model,synthetic eco- environmental vulnerability index(SEVI)was computed for 1990 and 2000 for the Yellow River Basin.The SEVI was classified into six levels,potential,slight,light,medium,heavy,and very heavy,following the natural breaks classification. The eco-environmental vulnerability distribution and its changes over the ten years from 1990 to 2000 were analyzed and the driving factors of eco-environmental changes were investigated.The results show that the eco-environmental vulnerability in the study area was at medium level,and the eco-environmental quality had been gradually improved on the whole.However,the eco-environmental quality had become worse over the ten years in some regions.In the study area,population growth,vegetation degradation,and governmental policies for eco-environmental protection were found to be the major factors that caused the eco-environmental changes over the ten years.

Design and Applications of Land Resources and Ecological Environment Information System: A Case Study of Zigui County in the Three Gorges Area of China

The design and applications of a land information system built upon ARC/INFO and ArcView are presented. The proposed system not only maintains all the advantages of the more conventional implementations but also enhances them in the following ways: 1) the application program interfaces (API) are used to transmit data and messages among different parts of the system; 2) the integrated system can support studies on land evaluations and ecological analyses by efficient management of attribute and spatial data and 3) correspondingly, spatial records and attributive records are linked by the same identifiers (ID). A case study application in Zigui County of the Three Gorges Area in China demonstrates that the system could employ land-use maps and land property data to predicate and analyze the land utilization changes in the past, present and future. The ecological environment analysis can be carried out with the data of land, economics and terrain map used, showing that the system can be widely applied, especially to survey land and environment resources in the countryside area.

Vegetation Change Prediction with Geo-Information Techniques in the Three Gorges Area of China

A computerized parametric methodology was applied to monitor, map, and estimate vegetation change in combination with '3S' (RS-remote sensing, GIS-geographic information systems, and GPS-global positioning system) technology and change detection techniques at a 1:50000 mapping scale in the Letianxi Watershed of western Hubei Province, China. Satellite images (Landsat TM 1997 and Landsat ETM 2002) and thematic maps were used to provide comprehensive views of surface conditions such as vegetation cover and land use change. With ER Mapper and ERDAS software, the normalized difference vegetation index (NDVI) was computed and then classified into six vegetation density classes. ARC/INFO and ArcView software were used along with field observation data by GPS for analysis. Results obtained using spatial analysis methods showed that NDVI was a valuable first cut indicator for vegetation and land use systems. A regression analysis revealed that NDVI explained 94.5% of the variations for vegetation cover in the largest vegetation area, indicating that the relationship between vegetation and NDVI was not a simple linear process. Vegetation cover increased in four of areas. This meant 60.9% of land area had very slight to slight vegetation change, while 39.1% had moderate to severe vegetation change. Thus, the study area, in general, was exposed to a high risk of vegetation cover change.

UNRAVELING ECOTOURISM PRACTICE:PROBLEM ANALYSIS BASED ON STAKEHOLDERS

Despite the considerable literatures defined what Ecotourism is or should be, it is experiencing vario- us practices with different features. Now the term "Ecotourism" is almost applied to all tourism activities which are based on nature. Faced to the flooding of those unqualified Ecotourism, it is of great necessity to put forward professional claim. The present writer holds that the key to the realization of rigorous Ecotourism chiefly lies in the relationships among the different interest groups involved in it. So the focus of this paper is just on giving a special analysis to the interest relations between those stakeholders which include local government, tour-operators, local residents and eco-tourists, and thus helping to find out what wrong is in those unqualified Ecotourism and the roots of those problems.

Biomass growth characteristics of 13-year-old Pinus densiflora S.et Z.in a post-fire plantation on different contour conditions in Samcheuk,Korea

We used preliminary data to estimate the growth volume of artificially reforested Pinus densiflora in a post-fire area on three different contour conditions. We compared the growth of P. densiflora on a south-facing slope(Ssth), north-facing slope(Snth) and ridge area(Ridge), using 7 trees selected from each stand aspect. The tree height, diameter and growth volume were measured and the dry weight of each plant part were compared and analyzed. The results revealed that the total dry weight was highest on Ssth(5992.3 g), followed by Snth(4833.2 g) and lowest on Ridge(3160.1 g). The height growth was highest on Snth(285.8 cm), followed by Ssth(274.5 cm) and lowest on Ridge(211.5 cm). The diameter growth was greatest on Ssth(7.37 cm), followed by Snth(7.10 cm) and lowest on Ridge(5.72 cm). The volume growth was highest on Ssth(4257.7 cm3), followed by Snth(3750.7 cm3) and lowest on Ridge(2093.7 cm3). Therefore, we should consider and include the concept of slope orientation together with differences in habitat environments in afforestation projects when creating artificial forests with P. densiflora. These study results can serve as important preliminary data for future establishment of artificial forest of P. densiflora in a post-fire plantation.

Study of Panjin Wetlands Along Bohai Coast:(Ⅰ) the Information System of Wetlands Based on 3S Technique

Based on previot, s stt,dies on Panjin wetlands along the coast of the Bohai Sea, this paper adopts RS, GIS and GPS techniques and establishes the information system for Panjin wetlands. The system involves many functions, such as identification and classification of wetlands, calculation of the area of wetlands and storage of the information of the wetland management. Moreover, our study indicates that remote sensing technique is a useful tool for great macrography, speediness and accuracy to carry out the extraction, analysis, management and handling of information together with geography information system, which has prospective applications in similar kinds of research.

STUDY ON SPATIAL LANDSCAPE PATTERN OF YANTAI CITY BASED ON RS AND GIS

Influenced by artificial factors, landscape pattern of Yantai City, Shandong Province changes continuously. Revealing its landscape pattern and its changing process has a practical significance for the urban development and layout. Zhifu District, Development Zone, Laishan District and Fushan District in Yantai City were selected to study the landscape pattern. Remote sensing technology was used to obtain landscape information of different periods. Under the support of Geographic Information System (GIS), the spatial landscape pattern of Yantai City was analyzed and simulated by using various special quantitative analysis models. The analysis shows that built-up area lies in the center of Yantai City, the outside is vegetable land, irrigated land, dry land, garden land and woodland.

Goal-Setting in the Information-Generating Environment of the Universe

Problem of goal-setting is related to the fundamental principles of informationology and general, rather than specific, aproaches, which enable a more adequate appraisal of certain managerial decisions in terms of their efficiency. In article this problem is considered and from positions of informationology is formulated and on the basis of a method of full mathematical induction the Law of positive dynamics of the Universe is proved. This law establishes preference of the positive purposes in all processes happening in the Universe. Thus, the goal-setting which is carried out from positions of the described Law is the important world outlook prerequisite searching, identification and development of strategic alternatives of purposeful social innovations.

Information Technology in Environmental Monitoring for Territorial System Ecological Assessment

The environmental monitoring dataset of Rivne region territory （Ukraine） was analyzed using remote sensing technology and statistical analysis. The article reveals approaches to anthropogenic impact specificity assessment based on methods of correlation analysis. The information technology to assess soil quality based on satellite images decoding was created.

Physical Land Suitability Assessment for the Large Cardamom Amomum subulatum Roxb.Cultivation in Hills of Kathmandu Valley

Nepal is one of the top three exporters of larger cardamom （Amomum subulatum Roxb.） in the world market contributing largely to the Nepalese economy. Sub-Himalayan range of hilly area of eastern Nepal is popular for large cardamom cultivation. Being similar phytogeographical and ecological setting, cultivation has begun in hills of Kathmandu Valley however land suitability needs to be evaluated with reference to specific need of the crop. Kathmandu is a valley with alluvial bottom and altitudinal range between 1200 and 2730m above sea level having cool to warm temperate climatic range. Varieties of aspects and slope gradient have potentiality for the large cardamom cultivation. Aim of the study was set to categorize available land area in the range of suitability for large cardamon cultivation on the basis of physical characteristics of the land and ecological need of crop. Land evaluation methodology has been designed along with site specific amendment in FAO framework （1976）. Land use map in scale of 1：25 000 was used in geographic information system environment. Suitability was done through map overlaying methods. Aim of the study was set to categorize available land area in the range of suitability categories for large cardamom cultivation based on physical characteristics of the land matching with ecological need of crop. Analysis of data shows that altitudinal range at uplands of Kathmandu Valley and annual average rainfall and temperature are found to be within suitability range for Amomum subulaturn cultivation. Sandy loam soil, slightly acidic in nature with gentle sloping land of about 5-8° provides highly suitable condition. Result showed that more than one-third of total land area above 1800 m of altitude is suitable. Selectively, of the total area, 5% are north facing slope, 13% gentle slopes are highly suitable. 16% lands with north east orientation are moderately suitable. Most of the land areas which are marginaly suitabile for vegetable and cereal crops are highly suitable for large cardamom. Hills of northern boundary hills found to be suitable due to more rainfall distribution pattern compared to southern boundary hills. Therefore, land evaluation also identifies limitations and input requirements for sustainable production.

Panda Habitat Added to World Heritage List

“Bamboo has blossomed. Held in her mother’s arms, Mimi is counting the number of stars in the sky. How beautiful the stars are and where is my breakfast tomorrow...

Design and Realization of Baiyangdian Water Environment Information System Based on ArcGIS Engine

For the need to protect the eco-environment and to strengthen environmental management in Lake Baiyangdian, water environment information aimed to get the water quality information more convenient and more intuitionistic was of significance. Based on massive monitoring data of Lake Baiyangdian and the important advantage of spatial analysis functions of GIS （geographical information system）, a system of B-WEIS （Baiyangdian water environment information system） was designed in the work. Component GIS of ArcEngine 9.3 GIS, combined with GIS and component technology, was used to research and develop the proposed system. This system realized different functions of management, data query, statistic analysis and visualization query to the Lake Baiyangdian water monitoring results. It also integrated with professional water quality model to realize evaluation of water quality and calculation of environmental capacity function. The designed system contributed to expand the management on Lake Baiyangdian more professional and available.

The Impact of Green Accounting for Reducing the Environmental Cost in Production Companies

Green accounting and their impact for reducing cost as a profession is the duty to improve the internal viewpoint of any economic unit and develop information that clarify its role within their environment and their contribution to providing appropriate information for decision-making which leads to the optimal exploitation of resources and the preservation of the environment and averting the threat. Thus, taking into account the environmental accounts especially environmental costs would enable the accounting profession to provide more relevant information and appropriate administrative decision makers, productivity, in particular where the problem lies in the lack of such information, resulting in the adoption of sound decisions which have contributed to the deterioration of the environment rather than addressed. In total, 180 questionnaires were distributed and 155 returned. Through analysis, the study came to the most important results that there were no statistically significant differences between the arithmetic average of the possibility of measuring the environment cost of disclosure, and the study also recommends the allocation of the budget to preserve and protect the environment and the budget of social cost, the development of accounting methods in order to provide environmental information to make sound decisions to exploit these resources.