... 森林砍伐率 rate of deforestation 沙化草地 desertification of grassland 生活垃圾 domestic refuse ...
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草地沙化 rangeland sandification
退化沙地草地 degraded sandy grassland
退化、沙化和碱化草地 degradation, desertification and alkalinization of grassland
The fraction dimension of patch decrease from 1.23 in 1991 to 1.22 in 2004,which shows that the shape of patches composed the grassland desertification landscape tend to be simple and regular under the disturbance of mankind.
整个沙地景观的斑块分维数由1.23,降到1.22,说明组成景观的沙化斑块形状更趋向于有规律、简单,说明沙化草地斑块受人类干扰影响有增加趋势。
参考来源 - 基于RS与GIS的内蒙古正蓝旗草原沙化动态监测与评价研究The physical clay (< 0.0 lmm) of sandy grassland in north-west Sichuan ranged form 9.9% to 10.7%, so the soil texture mostly was purple sand. And the pH value of soil assumed neutrality in general.
沙化草地的土壤物理性黏粒(<0．01mm)的含量在9．9％-10．7％之间，土壤主要为紫砂土，pH值呈中性。
参考来源 - 川西北沙化草地生态恢复过程中植被与土壤变化研究·2,447,543篇论文数据，部分数据来源于NoteExpress
草地沙化是一个植被、土壤与环境全面退化的过程。
Grassland desertification is also a process of comprehensive degradation of vegetation, soil and environment.
基于NPP和理论载畜量的估算，定量分析了自然因素和人为因素对草地沙化的作用程度。
Based on an estimation of NPP and the theoretical livestock capacity of grassland, the effects of natural and artificial factors on grassland desertification were analyzed quantitatively.
草地沙化是引起草地持续退化和生产力不断下降的主要原因之一。
Grassland sandy desertification is one of the main reasons that the grassland ecosystem degradation and productivity decline continuously.
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