Predicting the stability by water dynamics in plantation stand in dry-hot valley of Yuanmou County
Funds:
云南省中青年学术和技术带头人培养基金资助项目(98C060M); 云南省基础研究基金资助项目(98C012G)
- Received Date: 2000-09-24
- Rev Recd Date: 2000-11-28
- Publish Date: 2001-03-20
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Key words:
- dry-hot valley /
- water balance /
- planted forests /
- Eucalyptus /
- Acacia
Abstract: The maximum loading capacity of soil can be estimated according to the water holding capacity of soil and the water consumption of trees during the drought period .The results showed the proper planting density of Acacia mangium , A .auriformis and A .holosericea was 5 000 trees per hectare (spacing of 2.0m 1.0m)and that of A .aulacocarpa , A .cunninghamii , Eucalyptus camaldulensis , E .exserta ,E .citriodora should be less than 2 000 trees per hectare .If planted over the proper density , the trees would decline and even die for the insufficient supply of water .The data did not against that the trees should be planted in high density in the beginning for increasing the vegetation coverage .However , the intermedium theinning , pruning and other practices should be taken in order to prevent forest degradation due to over loading of water .
| Citation: | MA Huan-cheng, WU Yan-xiong, CHEN De-qiang, et al. Predicting the stability by water dynamics in plantation stand in dry-hot valley of Yuanmou County[J]. Journal of Zhejiang A&F University, 2001, 18(1): 41-45.
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