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[1]赵燕波,纪托未,张丹桔,等.3个树种与巨桉混交土壤理化性质、凋落物量和养分含量特征[J].应用与环境生物学报,2015,21(05):948-953.[doi:10.3724/SP.J.1145.2015.03043]
 ZHAO Yanbo,JI Tuowei,ZHANG Danju,et al.Soil physi-chemical properties, biomass and nutrient contents of forest litter in mixed plantations of Eucalyptus grandis and three tree species[J].Chinese Journal of Applied & Environmental Biology,2015,21(05):948-953.[doi:10.3724/SP.J.1145.2015.03043]
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3个树种与巨桉混交土壤理化性质、凋落物量和养分含量特征()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
21卷
期数:
2015年05期
页码:
948-953
栏目:
研究论文
出版日期:
2015-10-25

文章信息/Info

Title:
Soil physi-chemical properties, biomass and nutrient contents of forest litter in mixed plantations of Eucalyptus grandis and three tree species
作者:
赵燕波 纪托未 张丹桔 张健
四川农业大学生态林业研究所,四川省林业生态工程重点实验室 成都 611130
Author(s):
ZHAO Yanbo JI Tuowei ZHANG Danju ZHANG Jian
Key Laboratory of Ecological Forestry Engineering of Sichuan Province, Institute of Ecology & Forestry, Sichuan Agricultural University, Chengdu 611130, China
关键词:
巨桉混交林土壤理化性质凋落物量养分含量
Keywords:
Eucalyptus grandis mixed plantation soil physic-chemical properties biomass of forest litter nutrient contents
分类号:
S718.5
DOI:
10.3724/SP.J.1145.2015.03043
文献标志码:
A
摘要:
摘 要 比较3年半生的红椿、台湾桤木、檫木与巨桉混交的混交林和巨桉纯林的土壤理化性质、凋落物量和养分含量特征. 结果表明:红椿、台湾桤木和巨桉混交都有助于减缓土壤的酸化. 檫木与巨桉混交能显著改善土壤容重、持水量、孔隙状况,檫木与巨桉混交也能显著增加土壤的全C、N、P、K含量,分别增加了64.7%、41.9%、28.6%、7.7%. 台湾桤木与巨桉混交也能显著增加土壤的全C、N、P含量,分别增加了15.2%、27.9%、47.6%. 3种混交林土壤水解N都显著低于巨桉纯林,有效P都显著高于巨桉纯林,只有台湾桤木与巨桉混交能显著增加土壤速效K含量,其他两种混交林土壤速效K较纯林显著降低. 巨桉红椿混交林凋落物枝、叶现存量都显著高于巨桉纯林,巨桉檫木混交林凋落叶量、凋落物总量略低于巨桉纯林,分别降低了9.8%、9.3%. 巨桉台湾桤木混交林凋落物枝、叶现存量都显著低于巨桉纯林. 3种混交林凋落物中C元素含量都显著低于巨桉纯林,N元素含量都显著高于巨桉纯林,台湾桤木与巨桉混交能显著增加凋落物中P元素含量,檫木与巨桉混交能显著增加凋落物中K元素的含量. 综合考虑各项指标,在此类混交模式下为
Abstract:
In the present study, we compared the soil physical and chemical properties, biomass of forest litter and nutrient contents in three-and-half-year plantations of E. grandis mixed with Toona ciliate, Alnus formosana, Sassafras tzumu. The results indicated that mixing T. ciliate and A. formosana with E. grandis mitigated soil acidification. In E. grandis × S. tzumu plantations, the soil bulk density decreased, but the moisture capacity and porosity increased. The mixed plantations of E. grandis × S. tzumu significantly increased the soil total C, N, P and K content, by 64.7%, 41.9%, 28.6% and 7.7%, respectively. The mixed plantations of E. grandis × A. formosana also significantly increased the soil total C, N and P content, by 15.2%, 27.9% and 47.6%, respectively. Compared with the pure plantations, the mixed plantations had significantly lower soil hydrolysis N and higher available P content. Only the E. grandis × A. formosana plantations had higher soil available K content. Compared with that in pure plantations, the biomass of branch litter and leaf litter was significantly higher in E. grandis × A. formosana plantations but significantly lower in E. grandis × A. formosana and E. grandis × A. formosana plantations; the biomass of leaf litter and total biomass of litter of E. grandis × S. tzumu were 9.8% and 9.3% respectively lower. The litter C content in three kinds of mixed forest was significantly lower and the litter N content was significantly higher than that in the pure plantations. Only the mixed plantations of E. grandis × A. formosana plantations would increase the content of litter P. The mixed plantations of E. grandis × S. tzumu would increase the content of litter K. In general, S. tzumu is the optimal tree species to mix with E. grandis, followed by A. formosana, but T. ciliate is unsuitble for mixed plantation with E. grandis.

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备注/Memo

备注/Memo:
国家“十二五”科技支撑计划项目(2011BAC09B05)资助 Supported by the Sci-tech Pillar Project of the Twelfth Five-year Plan of China (2011BAC09B05)
更新日期/Last Update: 2015-10-29