摘要
通过遥感技术、地理信息技术和地面实地调查技术的结合运用,将阿勒泰的历史资料(1985年前草地类型图、草地等级图、放牧利用图)与2009年遥感影像资料、野外测产资料进行对比分析,确定了阿勒泰地区可利用草地系数K1、可食牧草系数K2、草地利用系数K3,建立了各季节牧场产量模型,计算出阿勒泰地区及各县市草地的产草量、理论载畜量、季节牧场载畜量和草地分级资料,对全区及各县理论载畜量、临界载畜量和实际载畜量进行了对比分析,提供阿勒泰地区及各县草地生产力变化的信息和相关对策。
Based on the integration of remote sensing and geographic information system and field survey,the study collected the historical dates（grassland classification map,grassland gradation map,grazing map before 1985）to combine MODIS data in 2009 and the yield data in field for research analysis and management strategies.The ratios of available grassland（K1）,edible forage（K2）,and grassland use（K3）,were determined,forage yield model for each type of seasonal grassland was established,forage yield,theoretic stocking rate,seasonal grassland stocking rate and grassland gradation for whole prefecture and each county were calculated,the comparison analysis of theoretic,threshold and practical stocking rate were provided,as well as information of grassland productivity change and relevant countermeasure for whole prefecture and each county.
出处
《草原与草坪》
CAS
2011年第3期20-26,共7页
Grassland and Turf
基金
国家公益性行业科研项目(200903060)
牧草产业技术体系项目资助
关键词
遥感
地理信息
草地产量
载畜量
grassland productivity change
remote sensing
GIS
grassland yield
stocking rate
