Spatio-temporal pattern evolution and driving factors of the globally important agricultural heritage system mulberry-dykes and fish-ponds
Nanxun District of Huzhou City in Zhejiang Province is one of the most complete and largest areas of mulberry-dykes and fish-ponds,and the mulberry-dyke and fish-pond system in this area has been listed in the globally important agricultural heritage systems.With the development of the social economy,the change of consumer demand and the modernization of agricultural production,the production modes,economies and service values of mulberry-dyke and fish-pond system have undergone great changes.Using remote sensing images,socio-economic data and other data,we analyzed the spatio-temporal pattern evolution and driving factors of mulberry-dykes and fish-ponds in Nanxun District from 1975 to 2019.The results were as follows:1)In terms of scale changes,fish ponds expanded rapidly;mulberry fields decreased significantly;paddy fields shrank dramatically;the scale of mulberry-dykes and fish-ponds decreased significantly;and the proportion of dyke-pond decreased seriously.In terms of morphological changes,fish ponds showed a trend of agglomeration and scaling,while mulberry fields and paddy fields showed a trend of fragmentation,and fish ponds gradually separated from the traditional mulberry-dyke and fish-pond system layout characteristics and existed independently.2)From 2012 to 2019,the economic benefits of fish pond farming were much greater than those of silkworm breeding and rice planting,which was the main driving force leading to the obvious shrinkage of mulberry fields and paddy fields and the large-scale expansion of fish ponds.Therefore,it is necessary to further strengthen the protection and inheritance of the mulberry-dyke and fish-pond system through the establishment of globally important agricultural heritage systems,and it is also an important measure to support sustainable agricultural development in Nanxun District of Huzhou City.
mulberry-dyke and fish-pond systemglobally important agricultural heritage systemsspatio-temporal patterneconomic benefits
NETL
NSTL
万方数据
