The Influence Analysis Between Non-cropped Habitats Landscape Pattern And The Arable Land Multifunction In Farmland

Non-cropped habitats in farmland plays a significant role in biodiversity and arable land multifunction.At present,the arable land multifunction reduced with the non-cropped habitats gradually dropped,and this phenomenon may by no means sound strange to most people in this day and age.Confronted with such phenomenon,numerous studies on the landscape Ecology Construction of farmland becomes the focus for a long time,at the same time,the arable land multifunction especially the ecological service function,landscape and culture function of arable land showed more and more important.This study based on Shenbei New District in Shenyang city,Liaoning Province,3S technology been used to extract data of the non-cropped habitat on arable land in this paper.Analytic hierarchy process(AHP)has been used to evaluate the arable land multifunction,Comparative analysis approach has been used to analyzes the influence of the non-cropped habitat on arable land and landscape structure(used by CONTAG,SHDI,SHEI)on land production function,social security function,ecological service function,landscape and culture function.There are three aspects of the result.(一)Non-cropped habitats landscape structure analysis results showed that:(1)The non-cropped habitats structure varies with its area ratio.When the proportion of non-cropped habitat area below 10%,Some types of non-cropped habitats are prominent,or water or rural roads,and the remaining non-cropped habitats are less;When the ratio of non-cropped habits is between 10%and 22%,the non-cropped habitats is more uniform;When the non-cropped habitats ratio is greater than 22%,the water area is the largest proportion.(2)The landscape heterogeneity of non-cropped habitats is enhanced with the increase of non-cropped habitats ratio.(二)The cultivated land multi-function evaluation results showed that:(1)The cultivated land multifunction is greatly influenced by the production function and social security function,the ecological service function and the landscape cultural functions of cultivated land has less influence on the cultivated land multi-function.The change trend of cultivated land multi-function is consistent with the trend of cultivated land production and social security.(2)The change between the two functions of cultivated land production,social security function and the ecological service,landscape culture function shows the trend of shifting.(三)Effects of non-cropped habitats on cultivated land multi-function results showed that:(1)With the increase of non-cropped habitats,the cultivated land production function is from increase to decrease.Dividing point is 22%.(2)With the increase of non-cropped habitats,the cultivated land social security function is from increase to decrease.Dividing point is 18%.(3)There are increasing trend on the effect of non-cropped habitats on the ecological service function and the landscape cultural functions of arable land with the rise of non-cropped habitats.(4)The effect of non-cropped habitats on the arable land multifunction is form increase to decrease.Dividing point is 22%for the cultivated land multifunction.