土壤单项污染指数 individual pollution index of soil
第1题：
According to the text. which of the following is NOT true?
A. Soil forms from weathered rock on the earth surface.
B. The deeper layer of soil is darker in colour than the surface soil.
C. Air pollution is partially responsible for acid soil.
D. Groundwater tends to carry away nutrients for plant growth.
第2题：
土壤环境质量评价一般以单项污染指数为主，指数小污染轻，指数大污染则重。
第3题：
According to the text．which of the following is NOT true?
A．Soil forms from weathered rock on the earth surface．
B．The deeper layer of soil is darker in colour than t}le surface soil．
C．Air pollution is partially responsible for acid soil．
D．Groundwater tends to carry away nutrients for plant growth．
第4题：
土壤酶学 soil enzymology
第5题：
稳定指数（stability index（Lyzner index））
第6题：
土壤单项污染指数=土壤污染物实测值/污染物背景值。
第7题：
污染物累积指数 accumulation index of pollutants
第8题：
某市郊区长期采用土壤分级污染指数综合评价土壤环境质量，该指数是根据土壤中污染物浓度及作物污染程度的关系分级来计算的。近期某监测点经过计算得到该分级污染指数为2．76，那么该地区土壤的污染等级为
A.轻污染
B.显著污染
C.非污染
D.中度污染
E.重度污染
第9题：
土壤有机持分解率 decomposition rate of soil organic matter
第10题：
土壤水分状况(Soil moisture regimes)