| 1. | Root growth dynamics of caragana korshinskii using minirhizotrons 观测柠条根系生长动态 |
| 2. | The role of nitrogen in compensatory growth of shrub , caragana korshinskii kom . , following different clipping treatments 氮在柠条不同刈割处理后补偿生长中的作用 |
| 3. | A study on vegetative compensatory growth of shrub , caragana korshinskii , under different clipping treatments in disturbance environment 扰动环境中不同刈割方式对柠条营养生长补偿的影响 |
| 4. | A comparative study on water use characteristics and eco - adaptability of hippophae rhamnoides and caragana korshinskii in semi - arid loess hilly - gully region 半干旱黄土丘陵区沙棘和柠条水分利用与适应性特征比较 |
| 5. | The reproductive characteristics and population structure of artemisia ordosica , hedysantm scoparium , caragana korshinskii and the reproductive characteristics of annual plants eragrostis poaeoides and bassia dasyphylla were observed in shapotou artificial revegetation area . stability of the artificial vegetation was appraised from the views of its persistence and variability under local natural condition . the study showed that : the artificial - natural vegetation built with sandbreaks and plants is stable in shapotou area 通过对沙坡头人工固沙植被区主要建植种群柠条( caraganakorshinskii ) 、花棒( hedysarumscoparium )和油蒿( artemisiaordosica )的繁殖特性及种群结构的研究,以及自然侵入的一年生草本植物小画眉草( eragrostispoaeoides )和雾冰藜( bassiadasyphylla )繁殖特性的研究,探讨了在植被的持久性和变异性,分析评价了主要受恶劣环境压力下的人工固沙区植被的稳定性。 |
| 6. | Abstract : the ecological benefits on various bunds planted with vegetation were studied using fuzzy comparison analysis method , the results showed that the bunds of amorpha fruiticosa , biomass , caragana korshinskii are relatively good , especially the bund of amorpha fruiticosa is the best , whereas the bund of malus spectabilis is somewhat insuperior to any other bunds 文摘:通过对几种生物埂生态效益的模糊对比分析结果表明,紫穗槐、黄花菜、柠条埂的生态效益相对较好,尤其是紫穗槐埂为最优,而海棠埂则稍差一些。 |
| 7. | The study investigated aboveground growths of caragana korshinskii and artemisia ordosica planted in four modes , revealing that in different planting modes their densities , heights and canopy width and biomasses remained unchanged or tended to decrease slightly ; the young shoots of a . ordosica annually grew in a s - shaped cure and the young shoots of c . korshinskii grew fast in spring and grew slowly or cease to grow from july on ; the biomasses and leaf area indexes of c . korshinskii and a . ordosica annually varied in a double peak curve and there were 8 annual plants that invaded in the four planting modes and formed higher coverage ; the quadrat with only a . ordoska appeared to have obviously lower coverage and biomass that the other three quadrats 摘要对腾格里沙漠东南缘2种人工植被柠条和油篙在4种配置方式下地上部分的生长动态进行了研究,结果表明:不同配置方式下它们的密度、高度、冠幅和生物量基本不变或略微呈下降趋势;油篙新梢的年生长动态呈s型曲线,柠条新梢春季生长速度较快, 7月份以后生长速度缓慢或基本停止生长;柠条、油篙地上生物量和叶面积指数的年变化均表现为双峰型, 4种配置方式下共有8种1年生植物人侵,并具有较高的植被盖度;同其它3个样地相比,纯油篙样地1年生植物的密度、盖度和生物量明显偏低。 |
| 8. | The species were separately caragana korshinskii hydysarum scoparim artemisia ordosica in shrubs layer , eragrostis poaeoides bassia dasyphylla in herbs layer , bryum argenteum barbula ditrichodies in microbiotic crusts layer . and the dominant species of them were artemisia ordosica eragrostis poaeoides bryum argenteum respectively . due to the different time and the topographical varieties in the fixing - sand region , the horizontal structure of artificial vegetation manifested out the mosaic characteristics 灌木片层的主要植物种是柠条( caraganakorshinskii ) 、花棒( hydysarumscoparim ) 、油蒿( artemisiaordosica )等灌木植物,其中优势种为油蒿;草本片层的主要植物种有小画眉草( eragrostispoaeoides ) 、雾冰藜( bassiadasyphylla )等,其中优势种是小画眉草;生物结皮由藻类和苔鲜类构成,其中,银叶真鲜( bryumargenteum夕为固沙植被区鲜类地被层优势成分。 |