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林地覆盖对黄甜竹土壤温度及生长的影响 被引量:2
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作者 周紫球 周成敏 +2 位作者 宋艳冬 杨艺薇 钟子龙 《湖南林业科技》 2019年第4期28-31,共4页
为促使黄甜竹提早出笋和延长出笋期,采用杏鲍菇废菌糠和麦壳为发热材料,谷壳为保温材料;设计不同覆盖厚度,对黄甜竹林地进行覆盖试验。结果显示:当覆盖杏鲍菇废菌糠的厚度为10cm时,最高土温达31℃,最低土温17℃;当厚度为20cm时,最高土... 为促使黄甜竹提早出笋和延长出笋期,采用杏鲍菇废菌糠和麦壳为发热材料,谷壳为保温材料;设计不同覆盖厚度,对黄甜竹林地进行覆盖试验。结果显示:当覆盖杏鲍菇废菌糠的厚度为10cm时,最高土温达31℃,最低土温17℃;当厚度为20cm时,最高土温39℃,最低土温20℃。当覆盖麦壳的厚度为8cm时,最高土温度28℃,最低土温14℃;当厚度为16cm时,最高土温39℃,最低土温16℃。覆盖麦壳8cm时的出笋期最长,比对照延长52d;出笋数也最多,达363个,比对照增加19.0%;浮鞭数最少、浮鞭长度最小、浮鞭鞭径也最小。因此,利用林地覆盖技术提早黄甜竹出笋,延长出笋期,可选用麦壳作发热材料,厚度控制在8cm左右,然后再加盖20cm厚的保温材料谷壳,其覆盖效果最好。 展开更多
关键词 黄甜竹 土壤温度 出笋期 浮鞭
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FIVE RED TIDE SPECIES IN GENUS PROROCENTRUM INCLUDING THE DESCRIPTION OF PROROCENTRUM DONGHAIENSE LU SP. NOV.FROM THE EAST CHINA SEA 被引量:48
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作者 陆斗定 Jeanette Goebel 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2001年第4期337-344,共8页
A new planktonic dinoflagellate, Prorocentrum donghaiense Lu sp. nov., is described in the present paper. The water sample was collected from the Changjiang Estuary, the East China Sea. The species identification is b... A new planktonic dinoflagellate, Prorocentrum donghaiense Lu sp. nov., is described in the present paper. The water sample was collected from the Changjiang Estuary, the East China Sea. The species identification is based on shape, size, surface micro morphology, ornamentation of thecal plates and the architecture of the periflagellar area and the intercalary bands as seen by light and scanning electron microscope. Prorocentrum donghaiense Lu sp. nov. is compared with other prorocentrum species with respect to morphological characteristics and bloom behavior. It is not known whether Prorocentrum donghaiense Lu sp. nov produces phycotoxins like some other Prorocentrum species. Four other red tide species in the family Prorocentraceae (Dinophyceae), namely P. balticum , P. minimum, P. micans, P. triestinum , were examined and identified by light and scanning electron microscope. They have been recorded as bloom forming species. Some aggregates of Prorocentrum are observed at the end of blooms. An event of strong discoloration caused by P. donghaiense could be detected by satellite sensor in the East China Sea in the late spring of 1995. 展开更多
关键词 PROROCENTRUM micro morphology East China Sea red tide
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