| 1. | Officials urge people to grow desert plants instead 政府劝人们养沙漠植物来代替。 |
| 2. | Officials urge people to grow desert plants instead 政府鼓励市民多种适宜沙漠生长的植物。 |
| 3. | Officials urge people to grow desert plants in stead 政府迫切要求当地居民用沙漠植物来取代这种需要浇灌的草地。 |
| 4. | A plant adapted to living in a dry , arid habitat ; a desert plant 旱生植物适应在干燥含碱的土壤里生长的植物;沙漠植物 |
| 5. | 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 |
| 6. | Yuhua is a cactus plant , originating in south africa , mexico and other regions , is a tropical dry naturally in desert plants 昙花是仙人掌科植物,原产于南非、墨西哥等地区,是属于热带沙漠里的旱生性植物。 |
| 7. | 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。 |
| 8. | 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。 |
| 9. | 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。 |