土地荒漠化评价是荒漠化研究中的重要问题。
The land desertification assessment is an important theory in the research of desertification.
初步提出柳湾灌丛草场在群落水平上的荒漠化评价指标体系。
The indicator system of scrub pasture desertification assessment on community level was put forward.
初步提出柳湾灌丛草场在群落水平上的荒漠化评价指标体系。
The indicator system of scrub pasture desertification assessment on community level...
遥感信息以其周期性、宏观性和系统性方面的优势，在土地荒漠化评价中得到广泛应用。
Remote sensing information is widely used in the study of desertification evaluation on account of its merits in its cyclical, macro and systematic aspects.
本文以毛乌素沙区柳湾灌丛草场荒漠化为例，应用植被分类、排序和梯度分析等技术，探讨荒漠化评价的理论和方法。
Salix scrub pasture in Maowusu desert as a case was studied. With the vegetation classification, ordination and gradient analysis, the theory and methods for desertification assessment were discussed.
近些年来，遥感以其信息量大、观测范围广、精度高、数据更新速度快等优点，已成为区域荒漠化监测与评价的主要手段。
Remote sensing, with the merit of large information capacity, huge observation scope, high accuracy and speed, has become the main means of regional desertification monitoring and evaluation.
因此，以县为单元，研究建立荒漠化植被监测的框架和信息处理和评价方法很有必要。
Therefore, it is very necessary to research methods and establish a framework of desertification vegetation monitoring and evaluation information system at the county level.
目前，荒漠化程度评价的主要因子为植被因子、土壤因子和地表形态因子。
At present, the mostly factors for the evaluate the degree of desertification are the rate of soil moisture, vegetation factor.
基于遥感手段的荒漠化程度定量化评价是当前遥感应用研究中的一个热点问题。
Study of desertification quantitative evaluation by remote sensing information is a hot spot of remote sensing application research.
本研究是国家自然基金项目“荒漠化因子定量反演及评价遥感信息模型的研究”(项目编号：30371192)的部分内容。
The study is the part of the National Natural Fund project: "Research on quantitative retrieval of the main factors of desertification and assessment of remote sensing information" (No. 30371192).
在此基础上，考虑到非荒漠化土地及各程度荒漠化土地在面积上的组成比例，给出区域性土地风蚀荒漠化总体水平评价模型；
Meanwhile, considering the ratio of non desertified land area and different degree desertified land area, a regional evaluation model of land desertification level was given out.
荒漠化是一个全球性的环境问题，对其现状和趋势进行准确的评价，将有助于采取更为有效的措施加以防治。
Desertification is a globally environmental problem, the accurate assessment to its status, change and trend will be instrumental in global action against it.
这种方法重视不同荒漠化类型的共性特征，适合在多种类型荒漠化遥感评价中应用。
This new approach emphasizes the common characteristics of different types of desertification, so it can be applied in assessments of many types of desertification by remote sensing.
这种方法重视不同荒漠化类型的共性特征，适合在多种类型荒漠化遥感评价中应用。
This new approach emphasizes the common characteristics of different types of desertification, so it can be applied in assessments of many types of desertification by remote sensing.
应用推荐