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| 元谋干热河谷人工林水分平衡分析及稳定性预测 | |
| 引用本文： | 马焕成,吴延熊,陈德强.元谋干热河谷人工林水分平衡分析及稳定性预测[J].浙江林学院学报,2001,18(1):41-45. |
| 作者姓名： | 马焕成 吴延熊 陈德强 |
| 作者单位： | 1. 西南林学院 生态工程研究所，云南 昆明 650224 2. 云南省林业科学院 云南省森林培育与开发重点实验室，云南 昆明 650206 3. Institute of Geography，School of Earth Sciences，Victoria University of Wellington，Wellington，New Zealand |
| 基金项目： | 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) |
| 摘 要： | 根据旱季试验地土壤的自然含水量和植物的凋萎系数，可以计算出旱季土壤所能提供的有效水分总量，再利用各树种的单株水分消耗量，即可估测出土壤对各树种的最大承载力。参照土壤的最大承载力，云南元谋干热河谷的马占相思、大叶相思和绢毛相思的林分的定植密度以5000株 |
| 关 键 词： | 干热河谷 水量平衡 人工林 稳定性 土壤－植物－大气 |
| 文章编号： | 1000-5692(2001)01-0041-05 |
Predicting the stability by water dynamics in plantation stand in dry-hot valley of Yuanmou County |
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| Abstract: | The maximum loading capacity of soil can be estimated accordingto 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 2.0 m×1.0 m）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． |
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