文献类型：期刊文献

中文题名：橡胶与砂仁间作复合生态系统营养元素循环的研究

英文题名：Research on Biological Cycle of Nutrient Elements in Plantation of Rubber Intercropped with Amomum Longiligulare

作者：周再知[1,2] 郑海水[1,2] 杨曾奖[1,2] 尹光天[1,2] 陈康泰[1,2]

第一作者：周再知

通信作者：Zhou Zaizhi[1]

机构：[1]中国林业科学研究院热带林业研究所;[2]广东省徐闻县国营南华农场

年份：1997

卷号：10

期号：5

起止页码：464-471

中文期刊名：林业科学研究

外文期刊名：ROREST RESEARCH

收录：CSTPCD;;Scopus(收录号：2-s2.0-0031393761);北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：加拿大IDRC资助

语种：中文

中文关键词：橡胶树;砂仁;复合经营;营养元素循环

外文关键词：rubber tree Amomum longiligulare intercropping nutrient elements biological cycle

分类号：S794.106;S753.536

摘要：橡胶与砂仁间作和纯橡胶林两种林分营养元素净积累、归还及营养元素在植物、土壤之间生物循环的研究结果表明：间种砂仁可明显增加林分植物库中营养元素的含量，间作林中营养元素总积存量达３４４７．０７ｋｇ／ｈｍ２，是纯胶林的２．５３倍；营养元素总归还量每年每公顷为３６３．２６ｋｇ，是纯胶林的１．４４倍，其中Ｎ，Ｐ，Ｋ，Ｃａ，Ｍｇ的年归还量分别是纯胶林的１．９，２．５４，１．４２，１．０５，１．１６倍；间作林中的Ｎ的归还量为最大，纯胶林中以Ｃａ的归还量为最大，两种林分均以Ｐ的归还量为最小。间作林中营养元素的年吸收总量为１０８３．４３ｋｇ／ｈｍ２，是纯胶林的２．１倍。尽管营养元素的循环系数低于纯胶林，但吸收系数却高于纯胶林，可见间种有利于植物对土壤库中营养元素的吸收。
In rubber( Hevea brasiliensis )plantation intercropped with Amomum longiligulare (RA) and pure rubber plantation(PP) of 30 year old,biomass and nutrient elements(N、P、K、Ca、Mg)of each component of tree,intercrops and litters were detected.Net accumulation and biological cycle of nutrient elements of two plantations have been comparatively studied.The results showed that annual accumulative and uptake amount of 5 nutrient elements of RA was 3 447.07 and 1 083.43 kg/hm 2,2.53 and 2.1 times of PP respectively.Annual return amount of RA was 363.26 kg/hm 2,among which N、P、K、Ca、Mg was 1.9, 2.54, 1.42,1.05,1.16 times of PP respectively.With the comparison of 5 nutrient elements,the return amount of N was more in RA system,and P less for two plantations.Although the cycle coefficient of RA was lower than that of PP,the absorption coefficient was higher than that of PP,that means intercropping can improve rubber tree and A.longiligulare to uptake soil nutrients.