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eco environment sensitivity
相关语句
  生态环境敏感性
     In this study, we reviewed the spatial pattern and correlationship of major eco environmental problems: soil erosion, desertification, salinization, and acid rain. The concept of eco environment sensitivity was proposed, and the factors which influence the eco environment sensitivity in China were analyzed, especially climatic factors were focused. A regional classification of eco environment sensitivity in China was developed, and the characteristics of each sub region of eco environment sensitivity was described.
     本研究首先综述了我国主要生态环境问题——水土流失、沙漠化、盐渍化和酸雨的空间分布格局和空间相关性,提出了生态敏感性的概念,分析了影响我国主要生态环境问题敏感性的因素,特别是气候对生态环境敏感性的影响,综合地提出了中国生态环境敏感性分区,并探讨了各分区的特点。
短句来源
  相似匹配句对
     City Eco-Environment
     城市生态环境
短句来源
     The Value of Eco-environment
     关于生态环境的价值
短句来源
     The Environment
     环境
短句来源
     Environment
     拯救地球环境
短句来源
     sensitivity;
     (5)灵敏度;
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Karst mountain is widely distributed in the Wujiang River valley of Guizhou Province, where the bearing capacity of karst environment is low, the land surface is rugged and eco environment is fragile. Taking the Wujiang River basin as an example, this paper deals with the principles and methods of evaluation of eco environmental sensitivity and establishes preliminarily the index system of evaluation in karst region by analysing the relationship between human activity and environmental...

Karst mountain is widely distributed in the Wujiang River valley of Guizhou Province, where the bearing capacity of karst environment is low, the land surface is rugged and eco environment is fragile. Taking the Wujiang River basin as an example, this paper deals with the principles and methods of evaluation of eco environmental sensitivity and establishes preliminarily the index system of evaluation in karst region by analysing the relationship between human activity and environmental changes. Based on the analysis,the weight of each factor (appraisal index) influencing eco environmental sensitivity is determined with AHP method,and the value of eco environment sensitivity in each county (or city, district, etc.) in the Wujiang River valley is also calculated, which will provide the basis for developing and harnessing the Wujiang River valley.

岩溶地区作为一个独特的地域环境单元,具有环境承载量低、地表崎岖破碎、植被生长困难、生态系统脆弱、环境变化敏感的特点。本文以岩溶地貌极为发育的乌江流域为例,论述了岩溶地区生态环境敏感度评价的原则,探讨了敏感度评价的方法,通过分析人类活动与生态环境变化之间的关系,初步建立起了岩溶地区生态环境敏感度评价的指标体系。并在此基础上,利用层次分析法确定了不同影响因子(评价指标)对生态环境敏感度的权重,并据此计算出了流域内各县(市、区)的生态环境敏感度值,为流域的开发与治理提供依据

The eco environmental degradation has been attracted more and more attention in China. It is becoming a challenge for scientists to find effective measures to tackle the eco environmental problems. In this study, we reviewed the spatial pattern and correlationship of major eco environmental problems: soil erosion, desertification, salinization, and acid rain. The concept of eco environment sensitivity was proposed, and the factors which influence the eco environment...

The eco environmental degradation has been attracted more and more attention in China. It is becoming a challenge for scientists to find effective measures to tackle the eco environmental problems. In this study, we reviewed the spatial pattern and correlationship of major eco environmental problems: soil erosion, desertification, salinization, and acid rain. The concept of eco environment sensitivity was proposed, and the factors which influence the eco environment sensitivity in China were analyzed, especially climatic factors were focused. A regional classification of eco environment sensitivity in China was developed, and the characteristics of each sub region of eco environment sensitivity was described.

我国日益恶化的生态环境越来越引起社会各界的关注。如何对生态环境问题采取有效的综合整治策略,已经成为科学界面临的一个挑战。本研究首先综述了我国主要生态环境问题——水土流失、沙漠化、盐渍化和酸雨的空间分布格局和空间相关性,提出了生态敏感性的概念,分析了影响我国主要生态环境问题敏感性的因素,特别是气候对生态环境敏感性的影响,综合地提出了中国生态环境敏感性分区,并探讨了各分区的特点。

For regional social and economic sustainable development, strengthening ecosystem management at provincial scale is prerequisite. One of the most important tool is to identify the critical or sensitive area that is easy to be degraded. So herein a methodology of eco-environmental sensitivity assessment was proposed and a case of Gansu Province was studied. Eco-environmental sensitivity was defined as the possibility of formation and generation of eco-environment problem in...

For regional social and economic sustainable development, strengthening ecosystem management at provincial scale is prerequisite. One of the most important tool is to identify the critical or sensitive area that is easy to be degraded. So herein a methodology of eco-environmental sensitivity assessment was proposed and a case of Gansu Province was studied. Eco-environmental sensitivity was defined as the possibility of formation and generation of eco-environment problem in a given region influenced by natural factors. High sensitivity region is the one where eco-environmental problems may occur easily in disturbance of human activity. In this paper, eco-environmental problems considered are water erosion, desertification, salinisation as assessment objects. For each object, major influencing factors are identified. water erosion is influenced by rainfall erosivity, soil texture, relief, and vegetation type; desertification is influenced by wetness index, soil texture, days the wind speed > 6 m/s, and vegetation cover; salinisation is influenced by evaporation/precipitation, underwater minerality, and geomorphology. Each influencing factor was graded into 5 classes of sensitivity to eco-environmental problem: insensitive, less sensitive, sensitive, more sensitive, and the most sensitive. Based on the information of eco-environmental investigation and previous studies, we have drawn the distributions of sensitivity of factors influencing eco-environmental problems. Integrated assessments of sensitivity to water erosion, desertification, salinisation have been done from multiplying each sensitivity of influencing factor by GIS technique. The following results have been obtained. Firstly, in Gansu Province, the region sensitive or more to eco-environmental problem was large and widely distributed. The most sensitive region took up 1.1% of the total area of the province, and the more sensitive region 57.4%. In the total area of sensitive or more region, the most sensitive of water erosion cover an area of 0.21%, mainly Malian watershed of Jing River, Hulu river watershed of Wei River and Zuli river watershed of Yellow river. And the more sensitive of water erosion cover an area of 24.6%, mainly in loess plateau, south and north of Gannan Plateau, and Xili and Huicheng basin of Longnan mountainous region. The most sensitive of desertification cover 0.8%, mainly in the north of Gansu, the middle part of Anxi county, and southeast corner of Subei county, the more sensitive region of desertification cover 33.1%, mainly in Hexi Corridor, and its north Alashan Plateau, Beishan Mountain, the front belt of east Aerjin Mountain, north hill of Loess Plateau and Yellow river coastwise of Gannan plateau. There is no region the most sensitive to salinisation. The more sensitive region to salinisation take up 1.1%, mainly in the middle-lower reaches of Shule River, the middle-lower reaches of Hei River and the lower reaches of Shiyang River. Secondly, the sensitivity assessment results are consistent with present distribution of eco-environment problems. High sensitivity region is properly the region where eco-environment problems are very serious now, which shows that it is manipulability and reliability to use GIS-based assessment of eco-environment sensitivity described in this paper. Thirdly, high sensitive region of eco-environment problem identified in this paper should be taken as priority area for ecological protection and restoration, and taken more counter-measure.

为了促进生态环境建设和保护 ,实施宏观规划和管理 ,研究以甘肃省为案例 ,从方法论的角度 ,利用生态环境现状调查资料和相关研究成果进行了生态环境敏感性的综合评价 ,辩识出了甘肃省主要生态环境敏感区域。研究结果表明 :( 1 )在生态环境调查的基础上 ,应用 GIS空间分析方法进行生态环境敏感性评价具有可操作性和结果的可靠性。 ( 2 )甘肃省的生态环境敏感性区域分布比较广泛 ,极敏感区占全省面积的 1 .1 % ,高度敏感区占 5 7.4%。其中水土流失极敏感区占 0 .2 1 % ,高度敏感区占 2 4 .6% ,主要集中在黄土高原 ,甘南高原南部和北部 ,陇南山地的西礼盆地、徽成盆地等地区 ;沙漠化极敏感区面积占 0 .8% ,高度敏感区面积占 33.1 % ,主要集中在甘肃北部、安西中部地区和肃北的东南部 ;土壤盐渍化基本无极敏感区 ,高度敏感区域占 1 .1 % ,主要集中在疏勒河中下游、黑河中游以及石羊河下游。对于这些敏感区域的保护 ,应该是生态环境保护和建设的重中之重。

 
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