improved grassland meaning in Chinese

改良草地

Refers to prairies , grasslands on the slopes , and grass - mountains in pastoral and agricultural areas used for herding and grass growing with vegetation coverage above 5 % , including natural , planted or improved grassland
指牧区和农区用于放牧牲畜或割草，植被盖度在5 %以上的草原、草坡、草山等面积。包括天然的和人工种植或改良的草地面积。
The edition of graphical data is operated on mge software and the area of all kinds of grassland types is calculated on the titan gis software . the result shows that : the total rangeland area of xinbaerhuyou banner is 2257078 . 62 hm2 , its area percentage is 89 . 86 % ; the area percentages of temperate steppe type , temperate meadow steppe type , lowland meadow type , marsh type and temperate forage improved grassland are separately 85 . 11 % , 1 . 23 % , 12 . 19 % , 1 . 19 % and 0 . 28 % . in lowland meadow type , two new subtypes - lowland meadow subtype and lowland saline meadow subtype are found , which were not found in the former materials
研究结果表明：新巴尔虎右旗草地类型的总面积为2257078 . 62hm2 ，占总土地面积的89 . 86 % ；温性草原类、温性草甸草原类、低地草甸类、沼泽类及改良草地面积占草地总面积的比例分别为85 . 11 % 、 1 . 23 % 、 12 . 19 % 、 1 . 19 %和0 . 28 % ；低地草甸类中出现了以前没有的低湿地草甸亚类和低地沼泽化草甸亚类。