摘要
为揭示不同小生境中小蓬竹含水率及生物量的分配规律,为喀斯特地区小蓬竹的培育及开发利用提供理论依据,对不同小生境中1~4年生小蓬竹生物量和含水率进行了调查分析。结果表明：同一小生境中,小蓬竹各构件含水率随龄级的增加而降低;构件含水率排序为秆〉地下部分〉枝〉叶;小蓬竹各构件生物量的分配规律为秆〉地下部分〉枝〉叶,各构件生物量随竹龄的分配规律为3年〉2年〉4年〉1年。不同小生境中,同一龄级的小蓬竹秆的含水率排序为石槽〉石缝〉土面〉石沟,枝叶及地下部分含水率变化较小;小蓬竹生物量的分配规律为石槽〉石缝〉土面〉石沟。
The biomass and moisture content of Drepanostachyum luodianense with 1～4 years age in different microhabitats were determined to provide theoretical basis for cultivation,development and utilization of Drepanostachyum luodianense in Karst areas.The results showed that the moisture content of different parts of Drepanostachyum luodianense decreased with the increase of age class,the moisture content and biomass distribution of different parts were both stem〉underground part〉branch〉leaf and the biomass distribution of different parts was three-year age〉two-year age 〉four-year age〉one-year age in the same microhabitat,the stem moisture content of Drepanostachyum luodianense in the same age class was stone slot〉stone crevice〉soil surface〉stone ditch,and the biomass distribution of Drepanostachyum luodianense was stone slot〉v stone crevice〉soil surface〉stone ditch in the same microhabitat.
出处
《贵州农业科学》
CAS
北大核心
2010年第10期163-166,共4页
Guizhou Agricultural Sciences
基金
贵州省科学技术厅对外合作项目[黔科合外G字(2009)700101]
"十一五"国家科技支撑计划课题"中度石漠化环境速生高效林灌草种植与生态演替诱导技术"(2006BAC01A09-2)
关键词
小蓬竹
含水率
生物量
小生境
Drepanostachyum luodianense
moisture content
biomass
microhabitat
