Study on Soil Water Regime and Utilization on Water-Saving Agriculture in Dry Red Soils But the leaching and precipitation coefficients are in reverse order. 我国燥红土的水分状况及节水农业利用研究淋溶系数最大的是灰岩型红土,最小的为γ型红土;
The results indicated that red mud could become a potential material to decrease phosphorus leaching loss from soil, thus to reduce phosphorous environmental pollution. 赤泥可抑制土壤有效磷释放的特性有可能使其成为一种有潜力的降低土壤磷素流失的材料,这样既可以达到废物再利用,又可以减少磷素对环境的污染。
Nutrient degradation in red soils ⅲ: nutrient leaching losses from red soils and plants 红壤养分退化研究Ⅲ:土壤和植株的养分淋失
The accumulation of aluminum and the serious acidification in the soil during its development from qua-ternary red clay stimulated the potassium leaching and decreased the total potassium content in the soil. 第四纪红粘土发育的低丘红壤茶园,由于土壤不断富铝化,酸度大,增强了钾的淋失,全钾含量趋向贫化。
Study on the Optimum Reaction Parameters of Red Soil Acid-leaching 红土酸浸的最佳条件研究
Preparation of iron red oxide from iron concentrate by leaching out the inclusions through selective dissolution 用选择性溶解除杂法由铁精矿制备氧化铁红
The effects of acid rain and several low molecular weight organic acids on red soil pH and exchangeable Al was investigated by simulated leaching experiment with undistributed soil column. 采用原状土柱进行模拟淋溶实验,比较研究了模拟酸雨和几种低分子量有机酸对红壤pH和交换性Al的影响。
Base-translocation of Red Earth and Calcareous Red Earth by Means of Leaching with Simulated Acid Rain 用模拟酸雨淋溶法研究红壤和红色石灰土的盐基迁移状况
The stability of the red pigment in litchi shell, which was extracted by acidic solution leaching from litchi shell, was studied. 以荔枝壳为原料,在酸性条件下浸提荔枝壳红色素,并对其稳定性进行了研究。
Red soil region in China with high weathering 、 strong leaching and strong biological cycle decided the vulnerability and unstability of red soil ecological system; Plus human impact, lead to the increasingly sharpen of soil degradation such as soil impoverishment, soil erosion, acidification and pollution. 我国红壤区域的高风化、强淋溶以及强烈的生物循环过程决定了红壤生态系统的脆弱性和不稳定性;加上人为影响,使得土壤贫瘠化、水土流失、酸化与污染等土壤退化日益加剧。
Large areas of red, yellow and limestone soil that distribute in the south of China are leaching strongly, thus the readily available potassium in soil is also very low. 我国南方有大面积的红壤、黄壤和石灰岩土壤,由于受到强烈淋溶等多种因素的影响,土壤有效钾含量一般较低,大部分钾是难于利用的无效钾。