马桑的结瘤、固氮特性

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 成都山地所知识仓储（2009年以前）

	马桑的结瘤、固氮特性
	杨忠
刊名	山地研究
	1993
卷号	11 期号:2 页码:125-128
关键词	马桑结瘤固氮
ISSN号	1008-2786
其他题名	NODULATION AND NITROGEN FIXATION CHARACTERISTICS OF CORIARIA SINICA
通讯作者	杨忠
合作状况	其它
中文摘要	马桑Coriaria sinica根瘤直径2厘米左右,主要发生于4年以下的幼年植株,一般存活6—7年;六年生马桑达到最大结瘤量（10克/株左右）。马桑根瘤固氮活性较高,活性一般随瘤龄的增大而降低,即幼瘤>壮瘤>老瘤。上侏罗统蓬莱镇组（J₃p）粘土岩发育成的紫色土比J₃p砂岩发育成的紫色土,对结瘤固氮更有利。
英文摘要	Cariaria sinica stands,planting on 11 sample plots in Lezhi County,Sichuan Province,China, were investigated so as to study the nodulation and nitrogen fixation characteristics. C. sinica nodule clusters, 1-2cm in diameter and black-brown, are composed of one to several petals which forked by 4-5 levels. The nodules complete their life by the way of five development fashions,e. i. infection and occurrence,forking-growth,declining,and dying.C. sinica nodule occurs mainly on the roots of stands bellow the tree age of 4a. Primary nodules get into forking-growth, branch into petals. The petals fork by 4-5 levels,develop to compact and spheroid nodule clusters with thick,plump and smooth branchs. A few time later the branchs begin to stretch-grow and the nodule cluster loosen even to develop into coral-formed nodule cluster. When the growth stopped the nodule became old and decline,and got shrivelled, shin and rough,stuck and crack.C. sinica nodule can live for 6-7a and may be roughly groped into four classes according to the morphology which reflects the nodule age,e.i. young,robust,old,and declining. The nodule amount of each stand incleases with the growth of nodule,and reaches the highest level of about 10g/plant.C. sinica nodule have a high N2-fixing activity which decreases with an increase of nodule age.e. i. young>robust>old.The purple soils developed from clay rock of Penglaizhen Group of upper Jurassic series (J3p) are more advantageous to nodulation and nitrogen fixation of C. sinica than that from sandstone of J3p.
学科主题	土壤学
收录类别	CSCD ; 北大中文核心
语种	中文
CSCD记录号	CSCD:213193
公开日期	2011-08-08
内容类型	期刊论文
源URL	[http://192.168.143.20:8080/handle/131551/3318]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
作者单位	中国科学院、水利部成都山地灾害与环境研究所
推荐引用方式 GB/T 7714	杨忠. 马桑的结瘤、固氮特性[J]. 山地研究,1993,11(2):125-128.
APA	杨忠.(1993).马桑的结瘤、固氮特性.山地研究,11(2),125-128.
MLA	杨忠."马桑的结瘤、固氮特性".山地研究 11.2(1993):125-128.