查询词典 soil cover

It was found that, for the control treatment the average runoff depth was 3.72mm per 10mm, the water loss index was 37.2%, the average soil erosion was 43.6 kg*hm-2*10mm-1, and the soil erosion modulus was 7.42 t*km-2*a-1, which are all high in the 4 treatments. For the other three treatments, the surface runoff and the average soil erosion amount were 2.20%-67.08%and 43.81%-90.83%lower than those of the control, respectively. The most effective pattern for soil conservation was the artificial forest with underbrush treatment, and the best water conservation pattern was the treatment of planting tea bush on contour terrace.

结果表明，CK的平均径流深度为3.72 mm/10 mm，降水流失率为37.2%，平均每10mm降雨的土壤侵蚀量为43.6kg*hm-2，年土壤侵蚀模数为7.42 t*hm-2；其它3个不同植被覆盖处理的地表径流量比裸地对照降低2.20%～67.08%，平均土壤侵蚀量减少43.81%～90.83%；林下地表覆盖处理的保土效果最好，等高梯田种植茶树处理的保水效果最好。

For actual productivity of soybean, the rank is black soil, meadow soil, dark brown soil, chernozem saltierra and saltern, aeolian soil.

不同土壤条件下的大豆现实生产力存在差异：黑土＞草甸土＞暗棕壤＞黑钙土和盐碱土＞风沙土。

For different soils, the rank of actual productivity of maize is black soil, meadow soil, chernozem dark brown soil saltierra and saltern, aeolian soil.

不同类型耕作土壤对玉米和大豆现实生产力的影响分析表明，对于玉米而言，6类不同土壤条件下的玉米现实生产力存在以下规律：黑土＞草甸土＞黑钙土、暗棕壤和盐碱土＞风沙上。

The quality of black soil was best, but 7.97 percent of phaeozem had been changed into middle grade or low grade land.43 percent of chernozem belonged to middle and low product field, thus the black soil degenerated seriously. Since slightly sand soil kept better land quality, the soil might be exploited through intensification of sand regulation and farmland protection.

结果表明：研究区土地质量总体东部优于西部，黑土地质量最好，但已有7.97%的黑土已成为中等或差等土地，黑钙土有43%属于中低产田，黑土地退化严重；轻度沙化土地仍保持较好的土地质量，加强沙化治理与耕地保护，仍可发挥其生产潜力。

Zonal soils chestnut brown calcium soil and soil small size, only the upper part of the distribution of the alluvial fan and central parts of the formation of long-term irrigation Yuguan light meadow soil widespread development, soil depth, with certain fertility, is a good base for grain production.

地带性土壤栗钙土和棕钙土面积不大，仅分布在洪积扇的上部和中部，长期灌溉形成的淤灌浅色草甸土广泛发育，土层深厚，具有一定肥力，是粮食生产的良好基地。

In the 20 yr forest, 304. 6gm〓 C and 11. 6gm〓 N are inputted to the soil. In the 80 yr forest, 502. 3gm〓 C and 17. 2gm〓 N are inputted to the soil. In the climax forest, 430.3gm〓 C and 11. 9gm〓 N are inputted to the soil. Along with forest succession, the C inputted to the soil B layer by fine root increases because of the deepening of root depth distribution.

白桦山杨幼林、白桦山杨成熟林与原始阔叶红松林中，细根每年向林地周转的碳量分别为304.6gm〓、502.3gm〓、430.3gm〓，氮量分别为11.6gm〓、17.2gm〓、11.9gm〓；其中，随着演替的进行，由于根系分布的加深，细根每年向土壤B层周转的碳量会逐渐增加。

As well,in the soil's (0～20 cm)coacervate constitution,the large soil types concent increased,the little soil types concent decreased and the specific surface drooped;furthermore,the water-redention capacities of soil drooped,but the available water content and the specific water capacitiesincreased,the water-supply ability strengthened.

经生物、化学改良后，0～20 cm土层土壤微结构中大粒级颗粒含量增加，小粒级颗粒含量减少，土壤比表面值降低；土壤持水力降低，但有效水含量和比水容量增加，土壤供水能力增强。

The yellow soil, fly ash and sand and stone are analyzed for their abilities of clearing from the impurities to choose the best combination of soil stuffing, in which stuffing is 60cm thick, fly ash covers 5 percent ,and sand and stone are in the ratio of 3 to 1. The acclimated activated sludge added to the soil stuffing in two ways, the PVC tube used which is 160 cm high and whose inside diameter is 110cm, the pint-sized soil stuffing columniation is set up in the lab.

对所选黄壤、粉煤灰、砂石的去污能力进行分析，最终确定粉煤灰投加量为5%、土：砂质量比为3：1为最佳的土壤填料组合，土壤填料厚度为60cm，并以两种方式将驯化的活性污泥添加到土壤填料中，采用内径为11cm、高160cm的PVC管建立起实验室小型的土壤填料柱系统。

Result Under the same climate and rock condition, the distribution of the soil organic matter and N, P, K changed congruously in the soil section. Moreover, soil nutriens were accumulated more intensively in the surface soil.

结果］在同一气候和母质条件下，针阔混交林次生演替群落中土壤有机质与氮、磷、钾等在剖面分布上的变化趋于一致，且在表层土壤中养分积累作用明显，与凋落物-土壤的分解吸收作用有关。

Meters above sea level there is a large area below the distribution of pine forest, Shan-lin, Mao bamboo, soil is red soil (500 meters) and yellow (50-800 or 100 meters); 800 meters above the Huangshan pine and chestnut, chemical incense, bubble tree forests, mountain yellow brown soil; 1500 meters above the grass, mountain meadow soil coppice.

海拔80米以下分布有大面积马尾松林、杉林、毛竹林，土壤为红壤（500米以下）和黄壤（50—800或100米）；800米以上为黄山松林及锥栗、化香、泡树次生林，山地黄棕壤；1500米以上为草丛，山地矮林草甸土。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。