称多县高寒草甸草地资源健康评价研究

摘要

The evaluation system of vegetable situation, soit situation intervention is adopted, Based on previous research and theory of grassland health evaluation. 16 items of above biomass, proportion of good-quality forage, proportion of poisonous grass, vegetable coverage, height of prodominant grass, vegetable litter, underground biomass, organic matter and bulk of soil, total nitrogen of soil, thickness of grass layer, soil microbal, bare land area, rat hole density, insect density and grazing intensity were selected respectively for studying. Health evaluation system of Alpine meadow grassland is established and using this system to evaluating Alpine Meadow grassland resource in chengduo coungty.%在总结前人研究和参考草原健康评价理论基础上，采用“植被状况一土壤状况一干扰状况”评价体系。分别选取了地上生物量、优良牧草比例、毒害草比例、植被盖度、优势草群高度、植被枯落物、地下生物量、土壤有机质、土壤容重、土壤全氮、生草层厚度、土壤微生物、裸地面积、鼠洞密度、虫口密度、放牧强度等16项指标。建立了高寒草甸健康评价体系，并利用该体系对称多县高寒草甸草地资源健康评定。