摘要
以 Salicornia 属的两个野生种为实验材料,在海水处理条件下对其地上部的生长状况及无机养分的吸收特性进行了分析。结果表明:随着海水处理浓度的增加,生物量表现出旺盛的生长趋势,100%海水处理区的生产量最高:两个野生种的地上部 Na 的含量和海水处理浓度之间有明显的正相关。Na 在 Salicornia 属植物体内的积累阻碍 K 离子的吸收。淡水区 S.bigelovii 的 Ca 积累高于各盐水处理区,随着海水处理浓度的增加 Ca 的积累呈缓慢下降趋势。S.herbacea 的 Ca 的积累呈相与 S.bigelovii 相反的趋势。Mg 的积累和 Ca 的积累规律基本上相同。海水处理影响 Salicornia 属地上部氮和碳的积累过程。Salicornia 属的两个野生种 S.bigelovii 和 S.herbacea 在海水处理下的生长及养分积累都表现出极高的趋同性。
The growth and ionic absorption of Salicornia bigelovii and S.herbacea,both of which belong to genera Salicornia,were examined under sea water treatment.The growth was promoted in response to increased sea water concentration.The maximum yield was obtained under 100% sea water treatment.Na contents of the shoot of both species increased conspicuously in response to increased sea water concentration.Potassium (K) absorption was suppressed by Na absorption and accumulation.Calcium (Ca) content of S.bigelovii was high in pure water treatment.It became lower in sea water treatments.Sea water treatments tended to decrease Ca content gradually.On the contrary,Ca content of S.herbacea was low in pure water treatment.Sea water treatments tended to increase Ca contents gradually.For magnesium (Mg) absorption,the tendency was similar as in the case of Ca.N and C in the shoot tended to decrease in res.
出处
《华北农学报》
CSCD
北大核心
2007年第S3期1-4,共4页
Acta Agriculturae Boreali-Sinica
基金
中央级公益性科研院所基本科研业务费及中日合作项目中国内陆荒漠化开发及利用的资助
