WAN Yun,LIU Gui-hua,XU Xiao-niu.Water Holding Capacity of Some Major Forest Types in Jianghuai Hilly Region[J].Research of Soil and Water Conservation,2009,16(03):202-205.
江淮低丘林地水源涵养功能的研究
- Title:
- Water Holding Capacity of Some Major Forest Types in Jianghuai Hilly Region
- Keywords:
- water conservation forest; water holding of litter; water holding of soil; forest vegetation
- 分类号:
- S727.21
- 摘要:
- 林地的水源涵养功能主要依赖于林下的凋落物和土壤的蓄水能力。对江淮低丘5种不同森林类型的凋落物蓄积量、凋落物持水性能及林地土壤蓄水性能进行了研究。结果表明，不同森林类型凋落物层和土壤层水源涵养功能差异明显。麻栎林凋落物蓄水能力最强，其最大持水量为123.7 t/hm2；纯茶园的凋落物蓄水能力最弱，其最大持水量33.5 t/hm2；马尾松和枫香混交林地的土壤蓄水能力最强，而麻栎和马尾松林地土壤蓄水能力较弱。从林地总蓄水量来看，凋落物层蓄水量仅占总蓄水量的较小比例1.9%～4.9%，而土壤层蓄水量占到总蓄水量的90%以上，因此林地总蓄水量是由土壤层蓄水量决定的。
- Abstract:
- Stands water conservation function mainly dependend on forest withers and soil water holding capacity. We have compared with difference of withers quantity, withers conversation capacity and soil holding capacity of five kinds stands in Jianghuai hilly region. Results from the research showed: withers of the Quercus acutissima forest have much stronger water holding capacity, its biggest water capacity is 123.7 t/hm2; and 33.5 t/hm2 of pure tea garden,which is the weakest. Soil water holding capacity of mixed stand of Pinusm assoniana and Liquidambar formosana is the strongest, but the Quercus acutissima stands and Pinusm assoniana stands have much weaker soil water holding capacity. From stands total water-holding capacity, we know that forest withers water-holding capacity only account for the total water-holding capacity much lower, the scope is between 2.0%~5.1%, but the soil water-holding capacity occupies above total water-holding capacity 90%, therefore the stands water-holding capacity is decided by the soil water-holding capacity.
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备注/Memo
收稿日期:2008-11-7。
基金项目:“十一五”国家林业科技支撑项目 （2006BAD03A16）
作者简介:万云（1982- ），女，安徽巢湖人，硕士研究生，主要从事森林生态学方面的研究。E-mail：cloud_wan@163.com
通讯作者:刘桂华（1961- ），男，安徽枞阳人，教授，从事林木生理生态的教学和研究工作。E-mail：ghl611112@yahoo.com.cn