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| 3种胡枝子根系生长特性及根干重的研究 | |
| 引用本文： | 赵淑芬,孙启忠,丛培明,李艳华.3种胡枝子根系生长特性及根干重的研究[J].草原与草坪,2008(3):17-20. |
| 作者姓名： | 赵淑芬 孙启忠 丛培明 李艳华 |
| 作者单位： | 1. 内蒙古林西县草原工作站,内蒙古,林西,025250 2. 中国农业科学院草原研究所,内蒙古,呼和浩特,010010 3. 内蒙古林西县林西镇动检站,内蒙古,林西,025250 |
| 摘 要： | 对3种胡枝子的根干重及根系生长特征的研究结果表明，尖叶胡枝子，达乌里胡枝子和二色胡枝子具有较大的根干重，在100cm的土层范围内分别达到3472．05，3060．07和8795．66kg／hm^2，根系以粗、中根为主；根干重主要集中在0～20cm的耕作层中，分别占总根量的77．73％，72．289／5和89．02oA；30～50cm的土层中细根占较大比例，分别达到42．91％～5．35％，86．09％～95．41％和71．91％～93．6％。 |
| 关 键 词： | 胡枝子 根系 生长特征 根干重 |
Study on the root growth characteristic and biomass of 3 Lespedeza species |
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| ZHAO Shu-fen,SUN Qi-zhong,CONG Pei-ming,LI Yan-hua.Study on the root growth characteristic and biomass of 3 Lespedeza species[J].Grassland and Turf,2008(3):17-20. | |
| Authors: | ZHAO Shu-fen SUN Qi-zhong CONG Pei-ming LI Yan-hua |
| Institution: | ZHAO Shu-fen, SUN Qi-zhong, CONG Pei-ming, LI Yan-hua (1. Grassland Station of Linxi County of Inner Mongolia ,Linxi 025250,China; 2. Grassland Research Institute of Chinese Academy of Agriculture Sciences, Hohhot 010010,China) |
| Abstract: | The root biomass and growth characteristic of 3 Lespedeza species were studied and the results showed that the root biomass of 3 species were 3 472.05(Lespedeza hedysaroides),3 060.07(L.davurica) and 8 795.66 kg/hm2(L.bicolor) within 100 cm respectively.Most of roots distributed within 0 to 20 cm and accounted for 77.73%,72.28% and 89.02% respectively.The most fiber roots distributed within 30 cm to 50 cm and accounted for 42.91% to 5.35%,86.09% to 95.41% and 71.91% to 93.6% for 3 species. |
| Keywords: | Lespedeza root system growth characteristic root biomass |
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