摘要
进入20世纪90年代以来,由于人口的增加和经济的发展,荒漠化问题日益引起世界各国政府、国际组织和科学家的普遍关注。有关荒漠化程度评价的问题已成为当前土地科学研究领域一个新的热点。先从荒漠、荒漠化、荒漠化评价的概念入手,阐述了荒漠化评价的目的意义,进而说明土地荒漠化的原因、荒漠化过程和荒漠化发展程度、速率,自然环境的脆弱性,以及土地退化的原因等。详细介绍了荒漠化评价的国内外现状,着重探讨了以下几个问题:荒漠化评价类型,荒漠化评价原则,荒漠化评价方法,荒漠化评价的分级标准等。由于荒漠化研究是一门年轻的学科领域,许多荒漠化基础理论问题有待发展和完善,特别是荒漠化评价指标体系的建立还明显存在很多不足。
Since entering 1990s, the increase and development of economy because of population, the desertificated question causes the government all around the world, the general concerns of international organization and scientist day by day. That the desertificated degree is appraised issue concerned has already become a new focus of scientific research field of land at present. This text first from desert, desertification, concept appraised to desertification start with, explain the desertificated purpose and meaning further, desertification purpose lying in explaining why the land is desertificated, desertificated course and desertificated development degree and speed appraised, reason that the land depredate.The article has introduce the fragility of the natural environment, and the the domestic and international current situation appraised in desertification in detail, have probed into the following several question emphatically： Desertification and appraise the type, desertification and appraise the principle, desertificating and appraise the method, setting-up and desertificating the hierarchical standard appraised of the desertificated evaluation index system.
Because it is a young discipline domain to desertification and study, a lot of desertification basic theoretical question and remain to develop and perfect, desertificated evaluation index system at present exist a lot insufficient, remain we go on further research obviously also.
出处
《中国农学通报》
CSCD
2006年第1期305-310,共6页
Chinese Agricultural Science Bulletin
基金
辽宁省国土资源厅"十五"科研攻关项目"辽宁省北部西部地区土地沙漠侵蚀耕地规律调查与沙地治理研究项目实施方案"之子课题"辽西北风蚀荒漠化对耕地质量的影响及其程度评价"。
关键词
荒漠化评价
评价方法
评价指标
Desertification assessment, Assessment＇s method, Evaluation indicator
