摘要
三江平原沼泽化草甸优势种群—小叶章（Ｄｅｙｅｕｘｉａａｎｇｕｓｔｉｆｏｌｉａ）种群地上生物量、ＡＢＩ、ＡＡＧＲ、ＡＲＧＲ季节动态均呈单峰型。均至７月末达到极大值。分别为３５８．０５ｇ／ｍ２、２３０．９６ｇ／ｍ２、１４．６８３０ｇ／ｄ，０．０６３８ｇ／ｇ．ｄ。ＢＩ、ＡＧＲ、ＲＧＲ在７月末之前为正，之后为负。极大值均出现在６月末—７月中旬，分别为１０７．９７ｇ／ｍ２、７．７１２ｇ／ｄ、０．０２７４ｇ／ｇ．ｄ。且ＢＩ与ＡＧＲ、ＲＧＲ，ＡＢＩ与ＡＡＧＲ。
Deyexia angustisfolia is a dominant species in marsh meadow on Sanjiang plain. its seasonal dynamics of aboveground biomass, ABI, AAGR, ARGR are all as single peak type, reach their maximum values at the end of July, and are 385.05 g/m 2, 230.96g/m 2, 14.6830g/d and 0.0638g/g d. respectively, BI, AGR and RGR are positive before the end of July, and negetive after that. Their maximum values are all appeared between the end of June to the middle of July are 107.97g/m 2, 7.7121g/d and 0.0274g/g. d respectively. Meanwhile BI with AGR and RGR, ABI with AAGR and ARGR have very significant linear relationships.
出处
《植物研究》
CSCD
北大核心
1996年第4期489-495,共7页
Bulletin of Botanical Research
基金
黑龙江省自然科学基金
东北林业大学森林植物生态学开放研究实验室开放研究基金
关键词
小叶章
种群
地上生物量
生长速率
季节动态
Aboveground biomass
Growth rate
Seasonal dynamics
Deyeuxia angustifolia population
Marsh meadow.
