The effect of spatial pattern on the nutrient reduction is investigated based on the spatial simulation model developed for the study area of the Liaohe Delta, China. Four scenarios are designed to test the effect of ...The effect of spatial pattern on the nutrient reduction is investigated based on the spatial simulation model developed for the study area of the Liaohe Delta, China. Four scenarios are designed to test the effect of different landscape components on the nutrient reduction in the reed marsh: Canal density, reed area size, reed area shrinking pattern, and pumping station position. Based on a spatial model designed for the study area, the nutrient reduction in each case of these scenarios is simulated. The results indicate that each factor brings less than 10% change in the total nutrient reduction rate. More canals will not help much to improve nutrient reduction. Smaller areas are more efficient than larger ones. The shrinkage pattern is better than others in keeping a higher nutrient reduction rate. It is also more efficient to keep the pumping station near the border of the area to be irrigated. These conclusions provide theoretical supports to strategy makers for local land use planning, and contribute to the understanding of the relationship between landscape patterns and functions.展开更多
It could find from the survey and analysis that there existed many problems in landscape status of the west bank of Jinghang Grand Canal in Suqian City.For example,land function was scattered,eco-environment was poor,...It could find from the survey and analysis that there existed many problems in landscape status of the west bank of Jinghang Grand Canal in Suqian City.For example,land function was scattered,eco-environment was poor,facilities were incomplete and road system was not perfect.Guided by the principle for landscape planning and design of waterfront area,some suggestions had been proposed from the perspective of the design of ecological plants community,design of road transport network,revetment management,control of waterfront buildings,and landscape node design,so as to construct the west bank of Jinghang Grand Canal into the most lively,charming and characteristic waterfront area in Suqian City.展开更多
基金National Natural Science Foundation of China, NSFC 49631040, 40001002 Wageningen Agricultural University, the Netherlands Co-s
文摘The effect of spatial pattern on the nutrient reduction is investigated based on the spatial simulation model developed for the study area of the Liaohe Delta, China. Four scenarios are designed to test the effect of different landscape components on the nutrient reduction in the reed marsh: Canal density, reed area size, reed area shrinking pattern, and pumping station position. Based on a spatial model designed for the study area, the nutrient reduction in each case of these scenarios is simulated. The results indicate that each factor brings less than 10% change in the total nutrient reduction rate. More canals will not help much to improve nutrient reduction. Smaller areas are more efficient than larger ones. The shrinkage pattern is better than others in keeping a higher nutrient reduction rate. It is also more efficient to keep the pumping station near the border of the area to be irrigated. These conclusions provide theoretical supports to strategy makers for local land use planning, and contribute to the understanding of the relationship between landscape patterns and functions.
基金Supported by Fund Project for Scientific Research of Suqian College (2010KY17)
文摘It could find from the survey and analysis that there existed many problems in landscape status of the west bank of Jinghang Grand Canal in Suqian City.For example,land function was scattered,eco-environment was poor,facilities were incomplete and road system was not perfect.Guided by the principle for landscape planning and design of waterfront area,some suggestions had been proposed from the perspective of the design of ecological plants community,design of road transport network,revetment management,control of waterfront buildings,and landscape node design,so as to construct the west bank of Jinghang Grand Canal into the most lively,charming and characteristic waterfront area in Suqian City.
