基于3S技术的乌海市草原资源调查

发布时间：2018-07-27 20:31

【摘要】：本文以乌海市为研究区,采用遥感、地理信息系统和全球定位系统技术手段,地面调查和卫星影像数据分析相结合,对内蒙古乌海市草原资源进行分析,进而为乌海市草原合理利用及草原生态系统的可持续发展提供数据支撑。主要有以下结论：1、确定乌海市草原分类系统,将草原分为4个类、7个亚类、11个组、25个草原型。2、乌海市草原总面积205.44万亩,可利用面积为179.31万亩。其中,温性荒漠草原类总面积为23.56万亩、温性草原化荒漠类面积135.31万亩、温性荒漠类面积为22.82万亩、低地草甸类草原面积23.75万亩。3、温性荒漠草原类产草量平均为每亩16.25kg,总产量34.89x105kg；温性草原化荒漠类平均单产为每亩31.82kg,总产量35.45×106kg；温性荒漠类单产为每亩47.01kg,总产量65.36×105kg；低地草甸类平年单产每亩50.51kg,总产量10.20×106kg。4、温性荒漠草原类平均暖、冷季载畜量为3004、1666只绵羊单位；温性草原化荒漠类平均暖、冷季载畜量分别是28120、17947只绵羊单位；温性荒漠类暖、冷季载畜量为3920、2645只绵羊单位；盐化低地草甸亚类暖、冷季载畜量为9312、6477只绵羊单位。5、乌海市“三化”面积为192.12万亩,其中退化草地面积为111.90万亩,沙化草地面积为68.36万亩,盐渍化草地面积为11.87万亩。
[Abstract]:Taking Wuhai City as the research area, this paper analyzes grassland resources in Wuhai City, Inner Mongolia, by means of remote sensing, geographic information system and global positioning system, ground survey and satellite image data analysis. It provides data support for rational utilization of grassland and sustainable development of grassland ecosystem in Wuhai City. The main conclusions are as follows: 1. The classification system of Wuhai grassland is determined. The grassland is divided into 4 categories, 7 subclasses, 11 groups, 25 steppe types. The total area of grassland in Wuhai city is 2.0544 million mu, and the usable area is 1.7931 million mu. Among them, the total area of temperate desert steppe is 235600 mu, the area of temperate steppe desert is 1.3531 million mu, and the area of temperate desert is 228200 mu. The grassland area of lowland meadow is 237500 mu 路3, the average yield of temperate desert steppe is 16.25 kg / mu, the total yield is 34.89 x 105 kg, the average unit yield of temperate desert is 31.82 kg / mu, the total yield is 35.45 脳 10 ~ 6 kg, the yield of temperate desert is 47.01 kg / mu, the total yield is 65.36 脳 10 ~ 5 kg; The average annual yield of lowland meadow is 50.51 kg / mu, the total yield is 10.20 脳 10 6 kg 路4, the average warm of temperate desert steppe, the carrying capacity of 300 4 ~ 1666 sheep units in cold season, the average warm of temperate steppe desert type, the average carrying capacity of 28 120 ~ 17 947 sheep units in cold season, the warm type of temperate desert type, the average annual yield per mu of 50.51kg / mu, and the average annual yield of 10.20 脳 10 ~ 6 kg 路4kg. In the cold season, the carrying capacity of livestock was 3920 / 2645 sheep units, the subcategory of meadow in salinized lowland was warm, the carrying capacity of livestock in cold season was 93121.477 sheep units, the area of "Sanhua" in Wuhai City was 1.9212 million mu, the area of degraded grassland was 1.119 million mu, the area of desertified grassland was 683600 mu. Salinized grassland area is 118700 mu.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S812

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