摘要
研究了四川茂县大沟流域不同高度、不同土壤类型的土壤活性铝含量和土壤活性铝含量变化与连香树群落生长的关系。
Vegetation rehabilitation was of importance to sustainable development in degraded mountainous areas on the upper branch of Minjiang river, and favorable species and site were the key limited factors to vegetation rehabilitation. Therefore, the studies on site characteristic and plant growth were significant important to vegetation rehabilitation in those areas. The content of available Al of the top soil and its effect on the growth of Cercidiphyllum japonicum communities in Dagou Basin in Sichuan were studied, based on systematic sampling along different elevation and chemical analysis in the paper. The results indicated that, 1. The content of available Al of brown earth and cinnamon soil was 2.57～3.14g/kg and 1.26～1.55 g/kg, respectively. 2 The relationships between the content of available Al of the top soil and the growth of Cercidiphyllum japonicum tree were significant linear correlation. 3 The bigger the available (Ca+Mg)/Al Value is,the faster the growth of Cercidiphyllum japonicum tree is, and vice versa. 4 The most values of the available (Ca+Mg)/Al were less than 1,therefore,Al intoxication was the limited factor of development healthily of forest ecosystem in the areas.
出处
《山地学报》
CSCD
1999年第2期147-151,共5页
Mountain Research
基金
中国科学院"九五"重大攻关项目
中国科学院成都生物研究所茂县生态站资助
关键词
茂县
大沟流域
活性铝
土壤
连香树群落
Dagou Basin in Mao County, available Al in top soil, Cercidiphyllum japonicum community, available (Ca+Mg)/Al
