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- uncertain soil properties 土参数不确定性
- Effect of long-term single application of chemical fertilizer on soil properties and crop yield. 长期单施化肥对土壤性状及作物产量的影响。
- Effects of rice straw mulch and water-retaining agent on soil properties and crop yield. 施用保水剂和稻草覆盖对作物和土壤的效应。
- The correlation of the degradation parameter with some known soil properties was statistically analyzed. 结果表明地乐酚的降解主要是生物降解。
- Based on soil properties and suitability assessment, effect of remediation technologies on reclaimed land is discussed. 并根据临时用地的土壤特性分析和适宜性评价结果，探讨了临时用地的复垦技术及其对复垦土地的影响。
- Title： Soil properties and water holding capacities of Michelia macclurei,Schima superba and Castanopsis fissa stands. 关键词：阔叶纯林;水源涵养;土壤物理性质;养分;微生物;酶活性
- The effects of FC on soil properties,moisture,and seed bank in the Shapotou region were investigated in this paper. 在沙坡头人工固沙植被区调查了掘穴蚁对不同固沙年代和不同地形人工固沙区土壤的影响；
- Similar variables representing soil properties were also measured in a field infested with S. canadensis. 加拿大一枝黄花还促进了微生物的矿化速率和铵化速率, 这表明该物种提高了土壤无机氮和铵氮的供给。
- Moreover, some effective measures for decreasing the occurrence of pest and disease on street afforestation trees are put forward in terms of the improvement of soil properties. 从改善街路土壤性质入手，提出了相应的减少街路绿化树木病虫害发生的有效措施。
- Trangmar, B. B., R. S. Yost, and G. Uehara (1985) Application of geostatistics to spatial studies of soil properties: Adv. Agron., vol. 38, p. 45-94. 李俊延(1997)台北盆地S波速度构造。国立中央大学地球物理研究所硕士论文，共123页。
- Research advances in soil persistence characteristics of toxins released by transgenic Bt crops and their relationships with soil properties. 转Bt基因作物毒素土壤存活特性及与土壤性质的关系研究进展
- More attention was paid to subareas dividing and values assigning to topographical elements, air temperature, rainfall, soil properties and RCN. 文中对亚区划分和地形要素、气温、降雨、土壤特性和径流曲线系数的赋值给予了较多的注意。
- Qin H L, Gao W S, Ma Y C, Yang S Q, Zhao P Y.Effects of no-tillage on soil properties affecting wind erosion during fallow in ectone of north China. 秦红灵;高旺盛;马月存;杨世琦;赵沛义.;免耕对农牧交错带农田休闲期土壤风蚀及其相关土壤理化性状的影响
- It seems uncertain why he lost the election. 他落选的原因似乎并不清楚。
- Topography and land use types are key factors which affect soil properties variability on catchment scale in the loess hilly area. 摘要在黄土高原小流域尺度上，地形和土地利用是影响土壤变异的重要因素。
- He tells us in no uncertain term not to come again. 他直截了当地告诉我们不要再来了。
- I own to being uncertain about that. 我坦白承认对那件事还没有把握。
- In order to get soil properties and yield information in field, the total 63 sampling points from a 50 m×50 m sampling grid of 13 3 hm 2 winter wheat field were obtained. 为研究田间空间变异性信息和采样策略 ;对 13.;3hm2 冬小麦田以 5 0 m× 5 0 m栅格测得 6 3个数据 ;
- Let us eliminate all uncertain on thought. 让我们从思想上消除一切疑惑。
- I'm uncertain about how to get there. 我不确切知道怎样才能到达那里。
