以下为句子列表：
英文: Based on the color aerial photo and the field survey data, this paper analyze the information of various land use type change and spatial characteristics in Yanan Ecological Construction Demonstration Area from 2000 to 2003 by RS, GIS and statistics metho
中文: 摘要以航片等资料为基础，借助遥感影像解译、地理信息系统空间分析功能以及数理统计方法，分析了延安生态建设示范区2000-2003年间各土地利用类型的数量变化和空间特征，并且首次引入退耕指数、退耕弹性系数等指标对退耕还林工作进行评价。
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英文: In this paper,the importance and necessity of construction of ecological culture during construction of concordant society are explained,the influence of ecological construction to develop concordant society and the existing problems of ecological constru
中文: 阐述了在构建和谐社会的过程中,加快建设生态文化的必然性和重要性,分析了生态文化建设对构建和谐社会的促进作用和中国生态文化建设存在的问题,进一步探讨了生态文化建设的内容并提出了建议。
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英文: Though great progress has been made in ecological construction in West China, the situation of the ecological environment there is still getting worse and worse; so legislation has to be improved to establish efficient legal mechanism so that ecological c
中文: 摘要我国西部的生态建设虽然取得了积极进展，但目前生态环境仍呈不断恶化趋势；因此必须尽快完善立法，建立起有效的生态补偿的法律机制，才能确保西部生态补偿工作得以长期、稳定地实施。
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英文: Water is the most important element,based on this view of point,in order to use rationally water resource and bring into play man's efforts,ecological construction plan is put torward depending on the views of landscape ecological principles and methods.T
中文: 由于水是干旱区内陆河流域的关键因素，为了合理利用水资源，积极发挥人的作用，从景观生态学理论与方法的角度，提出了以河流廊道建设、植被景观建设、绿洲景观建设为核心的生态建设方案，以增加内陆河流域整个生态体系的容载力和稳定性。
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英文: Ecological construction system innovation of the Northwest——Ecological authentication;
中文: 西北地区生态环境建设制度创新研究——生态认证
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