Palynological and other sedimentary records in the south-eastern peninsular India where the retreating (North-East) monsoon brings the main rainfall are scarce. This paper tries to address not only this gap in data but also the methodological challenges of interpreting such data in terms of sea level, depositional environment and climatic changes of the area going back nearly 11040 years. In addition to other (chemical) proxies studied previously, pollen data of a chronologically well constrained sediment core (~20 m) from Porayar (11°01.178′N 79°50.446′E), in the coastal marginal part of the Cauvery delta, Southern India, have been analyzed. The three major pollen zones observed since 11,040 years are presented and discussed, as are the methodological challenges of interpreting the vegetation record in such a dynamic and diverse environment (the delta plains of southern India). The zones observed indicate various transitions: from a lower sea level condition to a more stable sea level that created an estuarine environment filled with brackish water that supported pollen assemblages of a marshland but not a true mangrove. Concurrently, pollen assemblages that indicate catchments at multiple spatial scales – local to regional, extending from the North-East monsoon dominated delta to the Western Ghats is also inferred for climate interpretation.

印度东南部印度半岛的孢粉学和其他沉积记录稀少，后季（东北）季风带来了主要降雨。本文不仅试图解决这一数据缺口，而且还试图从近11040年的海平面，沉积环境和该地区的气候变化方面解释这种数据的方法学挑战。除了先前研究的其他（化学）代理人以外，Cauvery三角洲沿海边缘地区Porayar（11°01.178′N 79°50.446′E）的时间顺序受约束的沉积物芯（〜20 m）的花粉数据也包括在内，印度南部，已被分析。介绍并讨论了自11040年以来观察到的三个主要花粉区，在这种动态变化的环境（印度南部的三角洲平原）中解释植被记录的方法学挑战也是如此。观察到的区域表明了各种过渡：从较低的海平面状况到更稳定的海平面，这创造了一个河口环境，里面充满了微咸的水，这些水支持沼泽地的花粉组合，但不是真正的红树林。同时，还可以推断出花粉组合在多个空间尺度上指示着集水区-从东北到季风为主的三角洲延伸到西高止山脉，从局部到区域都可以用于气候解释。从较低的海平面状况到更稳定的海平面，创造了一个充满咸淡水的河口环境，这些咸水支持了沼泽地的花粉组合，但没有真正的红树林。同时，还可以推断出花粉组合在多个空间尺度上指示着集水区-从东北到季风为主的三角洲延伸到西高止山脉，从局部到区域都可以用于气候解释。从较低的海平面状况到更稳定的海平面，创造了一个充满咸淡水的河口环境，这些咸水支持着沼泽地的花粉组合，但不是真正的红树林。同时，还可以推断出花粉组合在多个空间尺度上指示着集水区-从东北到季风为主的三角洲延伸到西高止山脉，从局部到区域都可以用于气候解释。