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首页> 外文会议>Asian conference on remote sensing;ACRS >SPATIAL PATTERNS AND PLANT SPECIES ASSOCIATIONS OF COFFEE (COFFEA SPP.) ALONG THE EASTERN SLOPES OF MOUNT MAKILING FOREST RESERVE, LUZON, PHILIPPINES
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SPATIAL PATTERNS AND PLANT SPECIES ASSOCIATIONS OF COFFEE (COFFEA SPP.) ALONG THE EASTERN SLOPES OF MOUNT MAKILING FOREST RESERVE, LUZON, PHILIPPINES

机译：菲律宾LUZON芒格林森林保护区东部斜坡上咖啡的空间格局和植物群落

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摘要

Non-native species can become invasive and threaten the biodiversity of natural ecosystems. In Mount Makiling Forest Reserve (MMFR), the non-native coffee plant was introduced in agroforestry farms in the 1980s. At present, it is observed growing abundantly inside the secondary growth forests. This study determined the factors that are related to the spatial distribution of coffee in MMFR, looked at the differences in plant community characteristics between sites with coffee and without coffee, and identified plant species that are associated with coffee. This study was conducted on the eastern slopes of MMFR, Philippines from November 2014 to March 2015. Data on vegetation and biophysical factors from 57 10 m × 10 m randomly established sample plots were subjected to regression analyses and redundancy analysis. Plant community characteristics were compared using the Mann-Whitney Test. Patterns of spatial distribution were visualized using a Geographic Information System. Results showed that the probability of coffee occurrence decreases with an increase in distance from sites of initial coffee introduction. Abundance increases with decreasing leaf litter and plant species diversity. Species richness, plant diversity, endemic and native species richness, and threatened species richness did not differ between plots with and without coffee; however it is worth mentioning that the number of endemic and threatened plant species was lower in plots with coffee. Coffea liberica was positively associated with Ficus nota and negatively associated with Nephelium ramboutanake and Arenga pinnata. On the other hand, Coffea canephora exhibited a highly negative association with Parashorea malaanonan. The results imply that: 1) coffee does not pose a threat to the reserve's flora at present, however future assessment efforts are needed, 2) if needed in the future, the population of coffee can be limited by manipulating the identified site factors, and 3) coffee can possibly limit or facilitate the growth of other plant species.
机译：非本地物种可能会入侵并威胁自然生态系统的生物多样性。在Makiling的森林保护区（MMFR）中，非本地咖啡植物是在1980年代引入农林业的。目前，观察到在次生林中大量生长。这项研究确定了与MMFR中咖啡的空间分布有关的因素，研究了有咖啡和无咖啡地点之间植物群落特征的差异，并确定了与咖啡有关的植物种类。该研究于2014年11月至2015年3月在菲律宾MMFR的东坡上进行。对57个10 m×10 m随机建立的样地中植被和生物物理因子的数据进行了回归分析和冗余分析。使用Mann-Whitney检验比较了植物群落特征。使用地理信息系统可视化空间分布的模式。结果表明，咖啡发生的可能性随着距初始咖啡引入位置的距离的增加而降低。叶片凋落物和植物物种多样性的降低会增加丰度。有咖啡和没有咖啡的地块的物种丰富度，植物多样性，特有和本地物种丰富度以及受威胁物种丰富度没有差异。但是，值得一提的是，在有咖啡的地块中，特有和受威胁植物的数量较少。利比里亚咖啡与无花果正相关，与兰布塔纳克猪肾和羽扇豆负相关。另一方面，加拿大咖啡与帕拉索拉玛拉诺南（Parashorea malaanonan）表现出高度的消极关联。结果表明：1）咖啡目前不对保护区的植物群构成威胁，但是需要未来的评估工作; 2）如果将来需要，可以通过操纵确定的场所因素来限制咖啡的数量，以及3）咖啡可能会限制或促进其他植物物种的生长。

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