鼎湖山南亚热带常绿阔叶林林隙生境变化的局部性与偏向性研究 |
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| 出 版 社：中国环境科学出版社 |
| 发表时间：2002 |
| 台 站：
鼎湖山森林生态系统定位研究站
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| 作 者：张德强，叶万辉，周国逸，黄忠良 |
| 点 击 率：5171 |
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| 关 键 字：南亚热带常绿阔叶林；林隙；生境；局部性；偏向性 |
| 摘 要：林隙形成导致了生境条件的变化，但这种变化并非均一发生在林隙内，而是在林隙内的局部区域，形成林隙生境变化的局部性。此外，林隙生境变化最大的区域也并非发生在林隙中部，而是偏向于林隙的某些方向，构成林隙生境变化的偏向性。鼎湖山南亚热带常绿阔叶林大林隙（1000m2）内，光照和土壤因子均有局部性和偏向性的变化。其中光照强度变化区域仅为林隙面积的1／3，并偏向林隙的北部和东部。土壤因子的变化与光照类似，但规律不完全一致，土壤含水量变化区域大于光照，且其偏向性程度小于光照；土壤速效P和速效K的强烈变化区域较小、仅为光照的1／20～1／10，但明显偏向林隙的北部与东部。林隙内生境因子的变化必然会引起林隙内物种的更替、种群的发展过程与格局。因此，对林隙内生境因子强烈变化的局部性和偏向性机制研究，对于理解林隙的恢复、群落更新与长期发展将有重要的意义。 |
| 关 键 字(英文)：monsoon evergreen forest；gap；habitat localization；partiality |
| 摘 要(英文)：The habitat is not changed uniformly in gaps．The changes are clearly in one part of gap and not in others，so called localization. And the changes are not around center of gap，they are partiality in gap. The gap of the Monsoon evergreen forest in Dinghushan Biosphere Reserve is about l000m2，but only l／3 area increase light and mainly extend to North and East of gap. The soil moisture is the same as light，but its localization bigger and partiality smaller. The available P and K of soil is also localization and partiality，but they are very small in area and great extend to North and East of gap. The localization and partiality of gap habitat play a very important role in species generation and its population dynamics. |
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 鼎湖山南亚热带常绿阔叶林林隙生境变化的局部性与偏向性研究.pdf |
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