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亚高山云冷杉林
相关语句
  subalpine spruce fir forest
     The composition and important value of plant species in subalpine spruce fir forest on the northern slope of Changbai Mts.
     长白山北坡亚高山云冷杉林的植物种类组成及重要值
短句来源
  “亚高山云冷杉林”译为未确定词的双语例句
     THE CHANGE OF ECOLOGICAL CONDITIONS ON THE CUTTING AREAS IN THE WEST SUBALPINE AREA OF SICHUAN PROVINCE
     川西亚高山云冷杉林采伐迹地生态因子的变化
短句来源
  相似匹配句对
     ^PICEA-ABIES FORESTS OF THE NORTHEAST CHINA
     中国东北的杉林
短句来源
     THE CHANGE OF ECOLOGICAL CONDITIONS ON THE CUTTING AREAS IN THE WEST SUBALPINE AREA OF SICHUAN PROVINCE
     川西亚高山杉林采伐迹地生态因子的变化
短句来源
     The composition and important value of plant species in subalpine spruce fir forest on the northern slope of Changbai Mts.
     长白山北坡亚高山杉林的植物种类组成及重要值
短句来源
     PHYTOCENOLOGICAL ROLE OF FOREST FLOOR IN SUBALPINE FIR FORESTS IN WESTERN SICHUAN PROVINCE
     川西亚高山杉林枯枝落叶层的群落学作用
短句来源
     STUDY ON MAN-MADE REGENERATION TECHNIQUE OF ALM FROM SECONDARY SUCCESSION OF DRAGON SPRUCE AND FABER FIR FOREST IN FRIGID AND TEMPERATE ZONE
     寒温带杉林次生演替成亚高山草甸人工更新技术的研究
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Tree ring analysis was used to reconstruct the history of growth suppression and release of conifer trees in four stands within a subalpine spruce fir mixed forest in Bitahai Natural Reserve, northr west of Yunnan Province. And then, the canopy disturbance intensity (the percent of mortality of canopy trees per decade) were infered from the frequency of the growth release. For all stands (one was young growth, the others were old growth), the average values of growth release frequency were 7.1% per decade in...

Tree ring analysis was used to reconstruct the history of growth suppression and release of conifer trees in four stands within a subalpine spruce fir mixed forest in Bitahai Natural Reserve, northr west of Yunnan Province. And then, the canopy disturbance intensity (the percent of mortality of canopy trees per decade) were infered from the frequency of the growth release. For all stands (one was young growth, the others were old growth), the average values of growth release frequency were 7.1% per decade in young stand and 7.4% to 9.5% per decade in the old stands. The estimated disturbance intensities were 4.8% per decade in the stand dominated by Picea brachytyla var. complanata (Mast.) Cheng ex Rehd. and 5.9% per decade in Larix potaninii var. macrocarpa Law Picea brachytyla var. complanata (Mast.) Cheng ex Rehd. stand.

对云南碧塔海亚高山云冷杉林内4个样地冠层树木的生长压制和释放的历史,用树木年轮分析方法进行了重建,然后根据生长释放频率推测林冠干扰强度(每10年冠层树木的死亡百分率)。4个林分(1个中龄林,3个成过熟林)生长释放的平均百分率为48%~92%。中龄林内,平均生长释放频率为71%/10a,成过熟林则为74%~95%/10a,在油麦吊云杉〔Piceabrachytylavar.complanata(Mast.)ChengexRehd.〕占优势的林分和大果红杉(Larixpotaninivar.macrocarpaLaw)油麦吊云杉混交林分内,估测的林冠干扰强度分别为48%/10a和59%/10a。

The LINKAGES model was used to simulate potential impact of warmer climate to m ajor tree species in each vegetation zone on Changbai Mountain.The model was par ameterized for forests under the current climate conditions and executed under t he current and warmer climates.The warmer climate was defined as the monthly me an temperature plus 5℃ while precipitation remains unchanged.In the zone of mo untain birch forest, the warmer climate does not change the dominant position of the birch species, but helps...

The LINKAGES model was used to simulate potential impact of warmer climate to m ajor tree species in each vegetation zone on Changbai Mountain.The model was par ameterized for forests under the current climate conditions and executed under t he current and warmer climates.The warmer climate was defined as the monthly me an temperature plus 5℃ while precipitation remains unchanged.In the zone of mo untain birch forest, the warmer climate does not change the dominant position of the birch species, but helps increasing the biomass of spruce, fir, and larch s pecies.Some of birch trees in the lower elevations of the zone are replaced wit h spruce and fir, resulting in the up shift of spruce fir forest zone.In the z o ne of spruce fir forest, the forest structure stays the same under the warmer c limate but spruce and fir have faster growth rates.The biomass of spruce and fir is dramatically increased whereas the biomass of larch has a small increase.Th e dominant tree species of the mixed forest zone have a minor increase in biomas s, so do the other co dominant species, indicating that the mixed forest zone e xperiences little structural changes under the warmer climate.

应用LINKAGES模型对长白山自然保护区内主要树种在各斑块类型中对气候变化的潜在响应进行了模拟 .模拟时选择了目前和未来变暖 2种气候条件 ,对于目前气候状态 ,模型使用目前气象参数 ;而对于未来变暖气候 ,则按温度增加 5℃、降水无明显变化作为模拟假设 ,温度的增加假定各月都相同 ,即各月均增加 5℃ .模拟结果表明 ,对于高山岳桦林 ,气温变暧后岳桦依然扮演重要角色 ,但落叶松、云杉、冷杉等目前这一林带的伴生树种 ,在气温上升后 ,其生物量均有较大辐度的增加 ,部分占据目前岳桦的位置 ,即目前下部的云冷杉林带有上移的趋势 ;对于亚高山云冷杉林 ,其优势种云杉和冷杉在气温变暖后 ,生物量有较大辐度的增加 ,落叶松虽有增加的趋势但辐度较小 ,即云杉和冷杉在未来气温变暖后依然是这一林带的优势种 ,但生长会加快 ;阔叶红松林的主要建群种在气温升高后 ,其生物量只有较小的增加 ,其它主要伴生种的生物量随气温上升的增加趋势非常相似 ,表明阔叶红松林在未来气候变暖情况下仍将维持目前的结构状态 .

 
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