ZHOU Dan-dan,HU Sheng-rong,HAN Min,et al.Research into the Vegetation Restoration Influencing Factor of Salix psammophila Checkerboard[J].Research of Soil and Water Conservation,2008,15(06):115-118,122.
沙柳沙障内植被恢复影响因子探究
- Title:
- Research into the Vegetation Restoration Influencing Factor of Salix psammophila Checkerboard
- 分类号:
- X171.4
- 摘要:
- 以神东矿区宝勒高水库保护区为研究区域，通过野外调查和统计分析，对不同规格、不同坡位沙柳沙障内植被恢复情况、沙障破损情况、植被生长与沙障关系进行了详细调查，以研究影响沙柳沙障植被恢复的几个主要因子。结果表明：2m×2m规格的沙柳沙障最利于植被恢复；沙丘背风坡在降水较好的条件下利于先锋植物种生长，而迎风坡则表现为更利于植被的恢复及演替；背风坡沙障破损较迎风坡严重，每一障格四条边破损度依次为迎下>迎上>顺左>顺右；植被生长对沙障有明显的依附作用，障格中间不利于种子停留和植株生长，在沙丘迎风坡，顺风边植株数量和高度均略高于迎风边，而到了沙丘背风坡，迎风边植株数量和高度都高于顺风边；风力是影响迎风坡植被恢复的主要因子，坡度则是背风坡植被恢复的主要影响因子。
- Abstract:
- Restoration,disrepair and plant growth of the checkerboard were studied in different size and different position Salix psammophila Checkerboard,then the influencing factor of its vegetation restoration were analyzed.The results show 2m×2m size checkerboard is the best one for restoration; the leeward slope is good for pioneer plant growth in the plentiful rain year and the windward slope is better for the vegetation restoration and succession; the checkerboard’s breakage in leeward slope is more serious than the windward slope; in each checkerboard,the breakage level of the four boundary is windward below>windward above>left before the wind>right before the wind; the plant growth has relationship with the checkerboard and the middle don’t suit the seed stay and its growth; in the windward,the plant quantity and height in boundary which before the wind is higher than the windward boundary and it is opposite in the leeward slope; the mainly influencing factor in windward slope and leeward slope is the wind and gradient respectively.
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备注/Memo
收稿日期:2008-5-15;
基金项目:国家自然科学基金（30771765）；国家林业避948项目（2006-4-07）
作者简介:周丹丹（1982- ），女（蒙古族），内蒙古通辽市人，博士研究生，主要从事荒漠化防治研究。E-mail：Zhoudandan414@126.com
通讯作者:高永（1962- ），男，教授，博士，博士生导师，主要从事荒漠化防治、沙尘暴方面的教学和研究工作。E-mail：gaoyong315@yahoo.com.cn