التفاصيل البيبلوغرافية
| العنوان: |
Biomass Energy, Carbon and Nitrogen Stores in Different Habitats along a Desertification Gradient in the Semiarid Horqin Sandy Land. |
| المؤلفون: |
Yuqiang Li1 yqLi975@yahoo.com.cn, Halin Zhao1, Xueyong Zhao1, Tonghui Zhang1, Yinping Chen2 |
| المصدر: |
Arid Land Research & Management. Jan-Mar2006, Vol. 20 Issue 1, p43-60. 18p. 4 Charts, 4 Graphs. |
| مصطلحات موضوعية: |
*DESERTIFICATION, *BIOMASS, *HABITATS, *CARBON, *NITROGEN, *ARID regions, *SAND dunes, *HUMUS |
| مصطلحات جغرافية: |
HORQIN Desert (China) |
| مستخلص: |
The Horqin Sandy Land is one of the most seriously desertified regions of China. We sampled total aboveground and belowground biomass, biomass energy, and the C and N stores in five different habitats along a desertification gradient in the Horqin Sandy Land: interdunal lowland, fixed sand dune, semifixed sand dune, semimobile sand dune, and mobile sand dune habitats. These habitats correspond to the potential, light, moderate, severe, and most-severe levels of desertification. We also sampled soil organic C and N stores at all sites. Along the spectrum from potential desertification to most-severe desertification, total aboveground and belowground biomass decreased by 89 and 91%, respectively, versus decreases of 90 and 91% for the aboveground and belowground biomass energy stores, 91 and 87% for the total aboveground biomass C and N stores, 91 and 96% for the belowground biomass C and N stores, and 90 and 83% for the soil organic C and N stores. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
Academic Search Index |
