文档介绍:2
2 2 2
Ξ
2 2 2
2
2
2
西北农业学报 2004, 13 (2): 119~ 123
A cta A griculturae Bo reali occidentalis Sinica
植物对稀土元素的生理生态响应
周正朝1, 张希彪2, 上官周平1
(1. 中国科学院水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌 712100;
2. 陇东学院生命科学系, 甘肃庆阳 745000)
摘要: 本文对稀土影响植物抗逆性、光合作用和对重金属离子吸收、提高作物产量和品质、增强土壤中2 2 2 2 N、
P、K 等营养元素的利用与转化、以及稀土在土壤中的存在形态和在植物体内的分布等方面的生理生态效应2
进行了评述, 并指出植物对稀土元素的生理生态适应过程研究中存在的问题。
关键词: 稀土; 植物; 生理生态
Ξ中图分类号: Q 614. 33 文献标识码: A 文章编号: 1004 1389 (2004) 02 0119 05
The Plan t Ecophysiolog ical Effect of the Rare Earth Elemen t
ZHOU Zheng chao 1, ZHAN G X i b iao 2, SHAN GGUAN Zhou p ing1
(1. State Key L abo rato ry of So il Ero sion and D ryland Farm ing on the Loess P lateau, Institute of So il and W ater
Conservation, Chinese A cademy of Sciences, Yangling Shaanxi 712100, China; 2. D epartm ent of
L ife Science, Longdong U niversity, Q ingyang Gansu 745000, China)
Abstract: In recen t years, the researchers did m any studies on the app lication of the rare earth in agri
cu ltu re, and go t som e ach ievem en ts. Com b in ing ou r ow n study w o rk, w e try to give a review abou t
the rare earth′s ecophysiological effect in agricu ltu re from the effect of rare earth on p lan t resisting en
vironm en t stress, pho to syn thesis and ab so rb ing heavy m etals ion, increasing crop yield and quality,
enhancing u tilization of the so il nu trien t elem en t such as N ,