2023年6月1日 星期四
桂西南石漠化山地土壤种子库的基本特征及植被恢复对策
Basic characters of soil seed bank and measures of vegetation restoration in rock dsertification area in southwest of Guangxi
2007年 第16卷 第1期 页码[6-11]    下载全文[0.9MB]  
摘要

采用幼苗萌发法对广西平果县龙何示范区石漠化山地的土壤种子库进行初步研究。结果表明,该地区土壤种子库共有108种植物,隶属于33科81属,其中草本81种、灌木20种、藤本7种;其土壤种子库的种子密度为64.6~339.7粒.m-2,且在不同土地利用类型区及不同季节存在较大差别。在分析土壤种子库对其植被恢复作用的基础上,认为可采取自然封育和人工造林等措施,以促进现存植被的正向演替。

Abstract

Soil seed banks had been studied preliminarily with seedling germination in rock desertification mountain land in Longhe Eco-demonstration Area of Pingguo County of Guangxi. The results showed that there were 108species belonging to 33families and 81 genera in soil seed banks. These species included 81herbs, 20shrubs and 7vines.Seed densities varied from 64.6 to 339.7grain·m- 2 in according to different land utilization types and seasons. Based on effect of soil seed banks on vegetation restoration, the befitting measures of vegetation restoration were put forward, which included natural close hillsides and artificial forestation to accelerate positive succession of vegetation.

关键词石漠化山地; 土壤种子库; 基本特征; 植被恢复; 对策;
Key wordsrock desertification area; soil seed bank; basic character; vegetation restoration; measure
作者吕仕洪,陆树华,欧祖兰,向悟生,王晓英,覃家科
所在单位广西壮族自治区中国科学院广西植物研究所,广西桂林541006
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基金项目广西科学基金资助项目(桂科基0342001-6); 国家“十五”科技攻关计划项目(2001BA606A-08); 中国科学院“西部之光”人才培养计划; 广西科技攻关项目;