Dalian Region belongs to a wet and semi-wet monsoon climate of warm-temperate zone with an annual average temperature between 8 and 10 centigrade,and an annual precipitation of 550-1000 mm.There is a landscape of the conifer and broadleaf forest.The natural forest with pine and oak,ect.is only found in the lower mountainous and hilly areas.Coastal zone has been developed earlier and most of them have become farmlands I.Deposit Environment of PeatThe alongshore peat was mostly deposited in the nutritional cacustrine-swamp environment under the warm-temperate wetted climate from middle-late stage of middle Holocene to early stage of the late Holocene.It belongs to herb-xylophyta type mainly with herbaceous plant and generally the depositiny rate is about 0.7-1.1 mm/a.