草甸草原放牧场退化定量评估指标体系建立
闫瑞瑞,高娃,沈贝贝,张宇,王淼,朱晓昱,辛晓平

Index System for Quantitative Evaluation of Pasture Degradation in Meadow Grassland of Inner Mongolia
YAN RuiRui,GAO Wa,SHEN BeiBei,ZHANG Yu,WANG Miao,ZHU XiaoYu,XIN XiaoPing
表2 指标的权重大小排序
Table 2 Weight ranking of indicators
指标 Factor 权重Weight
地上生物量Above-ground biomass 0.093
盖度Coverage 0.089
平均高度Average height 0.087
退化指示植物比例Degradation indicates plant proportion 0.071
植物种类Plants species 0.056
枯落物量Amount of litter 0.055
土壤有机碳比例Proportion of SOC 0.053
可食草种占总量比例Proportion of herbivores in the total 0.052
土壤容重增加比例Proportion of soil bulk density increased 0.052
中型禾草占比例Proportion of medium grasses 0.048
裸斑、盐碱斑比例Bare spot, saline-alkali spot ratio 0.045
有机质含量减少比例Organic matter content decreases proportionally 0.041
不可食草占总量比例Non-herbivores as a percentage of the total 0.038
有害草占总量比例Proportion of harmful grass in total 0.033
可食草种增加率Increase rate of herbivores 0.029
土壤侵蚀模增加比例Soil erosion patterns increase in proportion 0.028
全氮减少比例 Proportion of TN decreased 0.022
沙化指示植物增加比例Desertification indicates an increased proportion of plants 0.022
盐渍化指示植物增加比例Salinization indicates an increased proportion of plants 0.020
鼠洞面积占草地面积比例 Proportion of rat hole area to grassland area 0.019
禾草类占比例Proportion of grasses 0.018
土壤含盐量增加比例proportion of soil salt increased 0.008