1) Regional Desertification
区域荒漠化
1.
Studies on the Water Dynamic and the Regional Desertification Characterrisitic in Yanchi Sand Land;
盐池沙地水分动态及区域荒漠化特征研究
2) desertification region
荒漠化地区
1.
Evaluation of Ecological Security in desertification region in Desertification Region in Huailai County;
荒漠化地区生态安全评价——以首都圈怀来县为例
2.
By studying ecological brittle situation of desertification region which is based Duolun county, results show the ecological security evaluation index system and construct principle , divide groups of coefficient by adopting quantity principle and method, definite coefficient weight by using related degree analysis, and put forwa.
以多伦地区为例,提出了荒漠化地区生态安全评价的具体指标体系和构建原则,并采用数量化原理与方法,对各指标进行了具体量级划分,利用关联度分析方法,确定了指标的系数,并提出了衡量生态安全程度的数量化指标、生态安全系数及其计算方法。
3) desertification area
荒漠化地区
1.
Desertification is a serious environmental problem for human beings,in the desertification area of north China,genetic diversity,species diversity,ecosystem diversity and landscape diversity are abundant.
荒漠化是人类所面临的一个非常严峻的生态环境问题,我国北方荒漠化地区在遗传多样性、物种多样性、生态系统多样性及景观多样性层次上相当丰富。
4) desert plain
荒漠平原区域
5) bioclimatic zones of desertification
荒漠化气候区
6) North Shaanxi desertification region
陕北荒漠化地区
1.
Study on technology system for agriculture sustainable development in North Shaanxi desertification region;
陕北荒漠化地区农业持续发展技术体系研究
补充资料:半荒漠草原(温性荒漠草原)
半荒漠草原(温性荒漠草原)
半荒漠草原(温性荒漠草原) 张自和摄
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条