Palaeoecological analyses including pollen and charcoal analyses on a sediment core (NP3) collected from Nong Pling freshwater spring area in Thong Pha Phum, western Thailand are used to reconstruct past environmental change. The results demonstrate that there were changes in plant composition over the past 700 years resulting from interactions between hydrological conditions in relation to rainfall variability, and anthropogenic activity. Open vegetation such as grasses and lowland forest were established in Nong Pling freshwater spring forest from at least around ad 1300 suggesting drier conditions than present until around ad 1460. After that, decreased lowland forest and increased freshwater spring taxa together with the low charcoal contents indicate wetter conditions than during the former period, which allowed freshwater spring taxa to establish until around ad 1800. There were some fluctuations between freshwater spring taxa and lowland forest with open vegetation, probably due to rainfall fluctuations particularly after ad 1800 until the present. Moreover, recent increases in total charcoal accumulation, especially in large particles and the appearance of domesticated grass pollen may be related to recent human interaction within the ecosystems in Thong Pha Phum.

古生态学分析包括对从泰国西部通帕蓬的农平岭淡水泉水区收集的沉积物核（NP3）进行花粉和木炭分析，以重建过去的环境变化。结果表明，在过去的700年中，由于降雨条件与人为活动有关的水文条件之间的相互作用，植物组成发生了变化。开放植被如草和低地森林，从至少围绕成立于农Pling淡水弹簧森林广告1300表明比本干燥的条件，直到大约广告1460之后，下降低地森林和与低炭含量增加一起淡水泉类群表明潮湿条件下比在以前的时期，这使得淡水泉类群建立，直到大约广告1800年有淡水泉类群和低地之间的一些波动森林与植被的开放，可能是由于尤其是在降雨波动广告1800，直到本。此外，最近的总木炭积累增加，特别是大颗粒中的木炭积累和驯化的花粉的出现可能与通帕蓬生态系统中最近的人类相互作用有关。