shady slope

Seed rain in sunny slope started earlier than that in the shady slope in same distribution region, while apparent peak time was presented in shady slope.

同一分布区，阳坡落种早于阴坡，而阴坡落种高峰期较集中。

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The soil water characteristics, the soil physical characteristics and the canopy interception of Pinus tabulaeformis plantation were studied in the middle shady slope of Daqing Mountain. The results showed that: ( 1) The thickness of the soil layer was 35~ 104cm.

本文对大青山阴坡中部油松人工林地土壤水分、物理特性及林冠截留等进行了研究，主要研究结果如下：（1）林地土层厚度为35cm～104cm。

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In the 70 cm thick soil layer, there was no adjusting layer of water on the sunny slope, and yet the thickness of water-adjusting layer was up to 30 cm on the shady slope.

在70cm土层内，阳坡无水分调节层，而阴坡水分调节层厚度达30cm。

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The depth of the vertical distribution of both leading roots and absorbing roots on half shady slope was larger than on half sunny slope.

在半阴坡立地上，无论是疏导性根还是吸收性根，垂直分布深度均明显较半阳坡大；

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By using DEM Digital Elevation through analysis, sunny area in 1997 increased 7500 m~ 2 more than in 1982, while the area of shady slope decreased 4900 m~ 2.

通过DEM数字高程分析，1997年阳坡面积比1982年增加7500m~2，而阴坡面积则减少4900m~2。

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Second, total phenols content in the leaves, roots or one-year-old twigs in shady slope was significantly higher than that in sunny slope.

夏蜡梅阴坡的叶、根、一年生枝等器官的总酚含量显著高于阳坡。

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( 7) Stem diameter, height, crown height and crown width in the shady slope were significantly greater than that in the sunny slope.

阴坡油松的胸径、树高、冠高和冠幅均显著大于阳坡。

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Infiltration rate in the shady slope is greater than that in the sunny slope.

不同坡向的入渗率均表现为阴坡大于阳坡。

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The DBH growth of the two forests was declined greatly after 13 years, but the decrement was obviously less in shady slope forest than in sunny slope forest.

两种林分的胸径生长量在13年生以后明显降低，但阴坡林分的降幅明显小于阳坡林分；

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Soil seed bank density in sunny slope was 2.2-3.4 times than that in shady slope.

阳坡的土壤种子库密度为阴坡的2.2~3.4倍；

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The basal area proportion of Dahurian larch should be controlled to 90%-95% on shady slope and to 85%-90% on sunny slope.

落叶松断面积在阴坡应控制在90%～95%，在阳坡应控制在85%～90%；

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The evaporating amount of water surface of the sunny slope was 18.04% more than that of the shady slope in the dry season.

旱季阳坡水面蒸发总量较阴坡高18.04%；

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The weakening coefficient of wind velocity to plot A in sunny slope is under 13.67% by plot A in shady slope.

阳坡样地A的平均风速减弱系数比阴坡样地A低13.67%。

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The proportion of the soil heat flux under vegetation to slope net radiation: the sunny slope about 16%, the shady slope about 12%, are much more than that of the storing heat of the vegetation to slope net radiation ( < 1%).

植被层下土壤热交换量占净辐射量比例：阳坡约16%，阴坡约12%。

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The soil water between 0-2.0m is different in different slope direction. It accounts for 97% of total soil water consumption in sunny slope and only 67% in shady slope.

0-2.0m土层供水量在不同坡向差异很大，阳坡0-2.0m土层供水量占总耗水量的97%，阴坡仅占67%。

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The result shows that soil water storage ability in the forestland ( especially arbor in shady slope) and grassland is the best, the farmland, the middle, and the wasteland, the worst.

结果表明：该流域内林草的土壤蓄水能力最好，农地居中，裸地最差，尤其以阴坡乔木树种的蓄水能力最好；

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The key techniques were presented as follows: ( 1) Planting site should be selected in the sunny slope instead of in the shady slope and hill gully.

提出了其关键技术措施为：（1）植地应选在阳坡，忌种在阴坡和山窝；

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Spectral analysis showed that Chinese pine population in the different site have different growth cycle, and the cycle length on sunny slope is bigger than shady slope.

谱分析表明，不同立地的油松种群生长周期不同，油松种群的周期长度为阳坡阴坡，同时大周期内有小周期的波动。

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The root biomass on half sunny slope was obviously smaller than that of half shady slope.

半阳坡虎榛子根系较半阴坡的生物童明显减少。

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The distribution of plant community fits the characteristics of mountainous desert grassland. The most types of the community are in the shady slope of the mountain.

植物群落分布体现了山地荒漠草原的特征，多数植物群落类型分布在山地阴坡；

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