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| Study on carbon sequestration capacity and benefitevaluation of different suitable plants configurationmodes in depression between karst hills |
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| Abstract: |
| In order to integrate increasing carbon sequestration of plants into vegetation restoration and
reconstruction project in Guizhou karst areas，the carbon storage，spatial distribution characteristics and
carbon sequestration benefits of 5 kinds of configuration modes were studied in depression between karst
hills. The results showed that，carbon storage increment of each layer plants in different configuration modes
performanced as herbaceous layer ＞ fujimoto layer ＞ shrub layer ＞ tree layer，the proportion of carbon storage
of herbaceous layer in total carbon storage varied from 36.56% to 78.07%，which was dominant in vegetation
layer. Carbon storage of soil had no significant change compared with the control group，soil carbon storage of
Ligustrum lucidum，Sophora japonica，Zenia insignis and Fraxinus chinensis increased slightly，but decreaced
for Broussonetia papyrifera，and carbon storage of soil was dominant in the total carbon storage of different
configuration modes. the carbon storage of each configuration mode were all increaced after the implementation
of vegetation restoration in research areas，the carbon storage of L. lucidum，S. japonica，Z. insignis，
F. chinensis and B. papyrifera increaced by 0.579
t/hm2、1.813 t/hm2、3.254 t/hm2、1.227 t/hm2、1.349
t/hm2 respectively，carbon sequestration benefits
performanced as Z. insignis（848.97 Yuan/hm2）
＞ S. japonica（473.01 Yuan/hm2）＞ B. papyrifera
（351.95￥/hm2）＞ F. chinensis（320.12 Yuan/hm2）
＞ L. lucidum（151.06 Yuan/hm2）. |
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