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VERTICAL DISTRIBUTION OF CHAETOGNATHS IN THE EAST CHINA SEA IN SUMMER OF 1978

2000年间野生稻和栽培稻(O.sativa.L)分布区逆向分离的过程及动力 Ⅱ古今野生稻和栽培稻(O.satival.L)分布区



全 文 :第1 8卷第3期
1 9 9 8年 5月
生 态 学 报
ACTA ECOLOGICA SINlCA
VD1.1 8,NO.3
M av一 1998
2000年间野生稻和栽培稻(0.sativa.L)
分布区逆向分离的过程及动力
Ⅱ 古今野生稻和栽培稻(D.sativa1.L)分布区变化的动力分析
黄 璜① 廖晓兰 王思明@ 黄国勤④ 5 啊厂 /
f①湖南农业大学博士后流动站 长抄 41 01 28 ②湖南农业大学植物保护系 长抄 41 01 28)
(@中国农业科学院农q£遗产酽究室 南京 21 0095 ④中国科学院南京土壤研究所博士后流动站 南京 21 0008)
摘要 』、口增加、凡口扩散从而促进采业发展是野生稻面积缩小、分布北界南移而栽培稻面积扩大、分布区
向北、向东扩张的根盘动力 由于野生稻与栽培稻在所史上处于同一生态位,发展栽培稻使野生稻生境破坏
提出生态位恒定假说并解释丁野生稻与栽培稻分布区变化的特点。
关键._声l 野生稻,栽培稻,逆向分离
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一 — ~ ‘ — — — — — ~
THE PR0CESS AND P0W ER 0F SEPARATION IN AN ADVERSE
DIRECT10N 0F THE DISTRIBUTING AREA 0F W ILD RICE AND
RICE (D.sativa.L)DURING THE PAST 2000 YEARS
Ⅱ THE DYNAM lCS OF THE CHANGE oF DISTRlBUTloN AREA FoR W lLD RlCE
AND RICE (0.stative.L)IN ANCIENT AND M oDERN TIM ES
Huang Huang。 IAao Xiaolan② Wang Siming@ Huang Guoqin
(~Post Do~tr Stati~ oY Hu’ Agricutlura[University.Chnngsha.41O128,China
~Plant Protecti~ Department of Hu ⋯ Agricultural University,Changsha 410128
~S~ction of,4g~Yultural Heritage,Chinese Agricultural Acader~,一Na“pag一210095
:~InsOtute of m ScienCe,Acaderaica Sinica,Na圳ing,210008)
Abstract The increase and spread of population,which enhance the agriculture develop—
ment,is the essential power making the existing area of wild rice reduced and its northern
limit moved toward south.It also make the area of cultivated rice increased and its distri
button area extended toward north and east Owing tO the same ecological niche of both the
wild rice and the cultivated rice.the development of the latter destroyed the habitat of the
former “Niche existing foreve hypothesis is presented with whic h the character of dis一
收稿日期:1 996 O6一册,修改稿收到日期:1996 10 27
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