| 1. | The traits of and diversity of different habitats of alpine grassland plant community in eastern qilian mountains were studied 摘要对东祁连山高寒草地不同生境类型(阴坡、滩地和阳坡)植物群落的和多样性进行了研究。 |
| 2. | The one here was quite different from others . not only because it grows on the sunny and dry slope , but also because it grows from the stone crack 这株茶树却一返常规,不但身处干燥多风的阳坡,而且根植在岩石裂隙间,生存条件极端恶劣。 |
| 3. | Acutesrata and other low trees mixed community ; carpinus turczaninowii , tilia dictyoneura and lindera umbelleta have equal contribution to mixed trees community 对锐齿栎群落的阴阳坡进行比较,可以发现阴坡多样性普遍大于阳坡,而优势度则阳坡大于阴坡。 |
| 4. | There is lack of rainfall in experimental region . during its growth period , soil water content among different site types was : semi - shady > sunny > semi - sunny 黄土高原属土壤水分亏缺型,不同立地条件之间,人工刺槐林土壤含水量从大到小为:半阴坡半阳坡阳坡。 |
| 5. | It decreased with the increase of the gradient . the soil moisture in sunlit slope is greater than that in sunless slope , and changes as the following order in the slope : top < middle < lower 在坡面,随着坡度的增加,土壤含水量逐渐降低;阴坡的土壤含水量高于阳坡;而在同一坡度和坡向,土壤含水量从坡底向坡顶递减。 |
| 6. | The results showed that : from north - facing slope to south - facing slope and plain field , the species evenness and diversity index decreased ; from plain field to north - facing slope and south - facing slope , richness index also decreased 结果表明,当生境由阴坡向滩地到向阳坡变化时,各种多样性指数的变化顺序为,物种丰富度:滩地阴坡阳坡;均匀度和多样性指数:阴坡阳坡滩地。 |
| 7. | The over - wintering form population of hawthorn spider mite in free - pollutant culture apple orchard was ground orchard > southern exposure orchard > northern exposure orchard . there had significant level at 0 . 01 among these three orchards . culture condition affected the distribution of tetranychus viennensis zacher also 果园立地类型对越冬态山楂红蜘蛛的分布有着显著的影响,越冬态山楂红蜘蛛种群数量平地园阳坡园阴坡园,三者之间差异达极显著水平。 |
| 8. | The soil physical properties have obvious vertical distribution characteristic in the slope . the bulk density in sunlit slope is greater than it in sunless slope , and change in the follow order in the slope : top < middle < lower . while saturated soil moisture , field capacity , and wilting moisture are on the contrary 在地形上,土壤物理性质具有明显的垂直分布规律,阴坡除土壤容重外,饱和含水量、田间持水量和萎蔫湿度均大于阳坡;同一坡度和坡向下,容重从坡下向坡上递增,饱和含水量、田间持水量和萎蔫湿度均从坡下向坡上递减。 |