| 1. | The effect of the x2 test for fit to three distributions is bad to desert dominant population
对于荒漠植物优势种群， x ~ 2拟合检验效果不好。 |
| 2. | Spatial distribution characteristics of stable carbon isotope compositions in desert plant reaumuria soongorica
荒漠植物红砂稳定碳同位素组成的空间分布特征 |
| 3. | Cynanchum komarovii is the main constructive plants in maowusu desert . the photosynthesis characteristics of cynanchum komarovii was dynamic studied under natural conditions
本研究对毛乌素沙地主要建群种荒漠植物牛心朴子( cynanchumkomaroviial |
| 4. | The canopies of the desert plants are simple and thus the proportions of their canopies to the quadrat area are used as their eigenvalues to accurately and reliably calculate the eigenvalues of their niches
荒漠植物的冠层单一，以冠幅占样方面积比作为植物的特征值计算其生态位特征值比较准确可靠。 |
| 5. | Low niche breadth and similarity ratio , resulting from the conditions of the droughty desert habitats , are one of the major features of sparsely distributing plants in droughty desert ecological environments
生态位宽度和生态位相似比例小是受制于干旱荒漠生境条件的结果，是干旱荒漠生态环境中稀疏荒漠植物的主要特征之一。 |
| 6. | This thesis is mainly studying the genetic structure and variation of p . sibirica with rapd and the correlation with the surrounding environmental factors . and the survey provide the accurate and scientific information for understanding the genetic background systematic evolutionary of the desert plants and planning the effective conservation strategy
目前对叉毛蓬的研究很少，本文试图运用rapd分子标记技术研究叉毛蓬居群的遗传结构和遗传分化，并且探讨其与生境的相关性，为探明荒漠植物的遗传背景、系统演化及制定保护策略提供科学依据。 |
| 7. | Niche and genetic differentiation of several desert plants were detected to analyze the relationship between niches and genetic diversity of desert plants , test niche breadth variation hypothesis , and probe the reasons for haloxylon ammodendron endangering . in this paper , the study on plant community species diversity and genetic diversity in the region will provide scientific theory basis for conquering desert
从物种多样性和遗传多样性两个层次上，阐明了荒漠地区的生物多样性特征；在分析几种荒漠植物(碱蓬、叉毛蓬和梭梭)遗传变异和生态位的基础上，探讨荒漠植物种的生态位与遗传多样性的关系，验证关于生态环境与遗传变异的生态位宽度变异假说。 |
