An analysis on the inter - relations between turkey and eu after the iraq war 美伊战争后土欧关系发展的内在联系分析
The changes of soil physical properties at burnt site were very great following rainfall 火烧迹地在降第一场雨后土壤的物理性质有很大变化。
On the religious elements of the marriage customs of tujia nationality after being reformed and conformed 改土归流后土家族婚俗中的宗法性因素
Preliminary study on total sulfur in typical marsh wetland and arable soils in sanjiang plain 三江平原典型湿地及其开垦后土壤中总硫变化的初步研究
Dynamics of soil nitrification potential and microbial populations after applying 3 , 5 - dimethylpyrazole 施用后土壤硝化作用潜势及微生物群落动态变化研究
Study on changes of soil fertility as affected by the replacement of chinese fir stand by cinnamomum cassia stand 肉桂林取代杉木林后土壤肥力变化的研究
Soil physical and chemical properties as well as biochemical activities deteriorated after secondary natural forest was replaced by larix olgensis plantations 天然次生林中营造落叶松纯林后土壤理化性能和生化活性向不良方向演变。
According to the meteorologists view , the dust weather has much to do with the scarcity of rain , the dry air and exposed soil with immature plants in the area 据气象专家说,恶劣天气是由天旱少雨、空气干燥和植被稀少后土壤裸露造成的。
In this paper , peanut variety , haihua 1 , was selected as the experimental materials to study the changes of soil ecosystem covered with nonwoven film and plastic film 摘要分析研究了覆盖非织造布地膜和塑料地膜后土壤温度、湿度的变化。