查询词典 terrace cropping

Based on the Arcview platform and compiling programs by ourselves, the DLPM of urban area of Jinan in 1998 and 2001 is established. The main conclusions are: 1 general trend of land price is reduction from central base point to urban edge, but there are different characteristics in different direction; 2 from one edge to another, land price shows low-high-low, and its sections through urban areas show normal school and deflection normal school; 3 land price evolutes with time, concaveness land price terrace changes little or gentle or protruding, and protuberant land price terrace changes little or not, price terrace or big or gentle; 4 the increasing potential of price is analyzed by the increasing rate and increasing speed of land price.

分析数字地价模型得出结论：①地价从中心基点向城市边缘总趋势是降低，但不同方向表现出不同的特点；②在贯穿市区的地价剖面中，一般表现为从一个边缘到另一个边缘的地价由低到高再到低的变化规律，由於地价剖面经过不同的市区区位，呈现出正态和偏正态的分布特点；③在时间演化上，凹性地价阶地变小或变平缓，凹性地价阶地转变为凸性地价阶地，凸性地价阶地变小或转化为非地价阶地，凸性地价阶地变大或平缓；④利用地价增值率和地价增值速度分析了地价的增值潜力。

The level terrace of Bahia - grass rise 〉 contour cultivation 〉 the naked level terrace 〉 clear plough land 〉 naked land, it showed obviously that the level terrace of Bahia - grass rise should be the optimal measure.

梯壁植百喜草的标准水平梯田可作为优选措施，其保水效益非常可观，渗漏量季节特征明显，主要集中在4～8月，占总入渗量的59.6％。

The fault terrace zone controlled the occurrence and distribution of sand deposits, developing alluvial fan-fan delta system on the steep slope fault terrace and alluvial fan-fluvial-delta on the gentle slope fault terrace.

断阶带控制砂体的发育与展布，陡坡断阶带发育冲积扇-扇三角洲沉积体系，而缓坡断阶发育冲积扇-河流-三角洲沉积体系。

But systematic research concerning continuous mono-cropping grafted cucumber obstacle isn't reported. This paper systematically studied the effect of continuous cropping soil on grafted cucumber in aspect of its growth, yield and edaphon in pot experiments. Further more, root exudates of squash and grafted cucumber were collected by solution cultivate and adsorption of XAD-4 resins, and bioassay of the root exudates was did with cucumber and squash as receptors, studied allelopathy of grafted cucumber and squash root exudates on cucumber and squash , physiobiochemistry as well as.

本项研究采用盆栽试验以不同连作年限的土壤为基质比较系统地研究了连作年限对嫁接黄瓜的生长、产量和土壤微生物的影响；采用水培和XAD-4树脂吸附法分别收集嫁接黄瓜和砧木南瓜的根系分泌物并以黄瓜、南瓜为受体进行生物活性测定，并对嫁接黄瓜及其砧木南瓜根系分泌物化感作用的生理机制进行了初步探索。

There isn"t obvious selectivity in blank cutworm imperilment, the onseting quantity and imperilling degree is similar on different crops. It"s more serious in the field of invasion of weeds and corn intercrop potato than single cropping of corn, and the field of forecrop green manure is more serious than single cropping. Imperilment degree of black cutworm is very serious in both high altitude region as Dewu (1780 meters) and low altitude region as Lemin (1450 meters). The imperilment degree in two regions have no obvious differences. 4. The imperilment of second generation armyworm is very serious in both high altitude region of Dewu and low altitude of Lemen town.

3小地老虎的为害对品种没有明显的选择性，各品种小地老虎发生量和受害程度相似；作物对小地老虎发生为害程度影响较大，杂草丛生的地块和玉米与马铃薯间作的地块受害程度明显高于玉米净作地块，而前作为绿肥的地块受害程度也比净作高；土壤条件对小地老虎发生为害程度有影响，土质疏松、肥沃、团粒结构良好的地块受害程度明显比地势低洼、土质粘重、瘠薄的地块重；小地老虎在高海拔的德坞(1780米)和低海拔的乐民(1450米)两地发生为害均较重，为害程度没有明显差异。

Byerlee and Husain, 1952, report profitability of cropping patterns in Mardan District both for traditional and new cropping systems.

Byerlee和Husain 1952年报导过木尔坦地区传统和新式两种种植制度的营利情况（表6）。

Multiple cropping is one of major cropping systems in China and plays an important role in improving comprehensive productivity of cultivated land and ensuring national food security.

复种是我国重要的农作制度之一，对于提高我国耕地综合生产能力和确保国家粮食安全具有重要作用。

Multiple cropping is an important mean for increasing regional grain output and also a crucial cropping pattern in China's farming system.

复种是区域粮食增产的重要途径之一，也是中国粮食生产中一种重要的耕作模式。

In provinces owning cultivated land of higher productivity and higher potential of multiple cropping, the cultivated land is reducing and the rate of multiple cropping is falling.

在耕地粮食生产能力和复种指数潜力较高的一些省区，同时存在耕地的损耗和复种指数的下降，在农产品需求多样化的趋势下，粮食占播种面积的比率也在下降，即使粮食播种面积单产提高也不能从总体上替代实际损耗的耕地。

The yield differences among the three cropping patterns showed that intensive multiple cropping and reasonable adjustment techniques were effective ways to further increase field annual yield in this region.

三种模式产量梯度差异表明，在水肥供应基本充足的情况下，通过集约多熟种植并配合以合理调控技术是在高产基础上进一步提高产量的有效途径。

" I' d like to get some rough idea about music in the baroque ear, please."

请简要介绍一下巴罗克时期的音乐，好吗？

The results showed that the peak latency and pattern of SEPs elicited by electrical needling in LI-l1 and MP were similar. The amplitude of SEPs elicited by electrical needling in LI-l1 was higher than that of MP. There was no obvious SEPs generation when MM was electrical needling.

结果显示，电针刺激曲池穴和其邻近桡侧伸腕长肌运动点诱发性脑电波的波形和波峰时间是类似的，只是穴位的诱发性脑电波波幅较大，而电针刺激非穴位点并没有明显的诱发性脑电位。