农田

Mongolica and Ulmus laciniata populations were aggregated distribution; they displayed different degrees of aggregation intensity during different times of forest conservation; aggregation intensity of populations inclined as a whole.

封山育林一般是针对采伐迹地、火烧迹地或弃耕农田等宜林地采取的营林措施。20世纪80年代以后我国封山育林的理论与应用技术研究均得到了迅速发展，研究内容涉及封山育林后的分布格局、群落类型、营养动态等领域[1]。

The port is being modernised and unclogged, partly by increasing the cost of storing containers. Hundreds of miles of new roads and rail track are speeding up transport. Landmines are steadily being removed from farmland that had gone to pot.

官方统治已经被革除，港口通过增加集货箱收费变文明畅通了，新建公路铁路也加速交通，农田里的地雷也被出去，生活更稳定了。

The monsoon rains, which feed India's unirrigated farmland, have been fickle, inflicting drought on almost half of India's districts, followed by floods in some areas as the monsoon departed.

哺育印度干旱农田的季风雨反复无常，使一半以上的印度地区遭受旱灾的折磨，接着便是季风过后在一些地区发生的涝灾。

The premises of the simulation are that the runoff from upreach is 7.8× 108m3/a and the means of economization on water is in effect. When studied it was thought firstly the water for the lake area and the living plant of the oasis, then for forest-sod irrigation and farmland irrigation.

模拟计算是以上游下泄水量7.8×10~8m~3／a为前提条件，在实行节水措施，完善供水系统的情况下，首先满足维持和恢复一定规模湖泊面积，保证绿洲植被正常生长所需水量，然后考虑林草灌溉用水和农田灌溉用水量。

Lastly ,the author compared and studied the above results,With the objective status of research district,based on the previous research on the water recycle of field ,the principle and crop wanter requirements and water-saving agriculture ,water balance models are chosen to draw several reference proposals on the irrigation mode ,wate

最后，比较对照不同计算方法的计算结果，进一步对作物需水量的计算方法进行评价；总结作物的需水规律，结合研究区的客观实际情况，从研究农田水分循环、作物需水量规律、节水农业出发，对灌溉模式、节水技术和水管理等几个方面提出了参考建议。

But it became seriously alimentaled because of the waterhead polluted,discharge of toilet, the rotteness of fallen branches and leaves.

改革开放以后，随着经济的发展，周边农田上建立了许多厂房和民居，废水、废物、废气等污染物不断增加。

Based on an analysis of the data collected, the paper concludes that it is very difficult to prevent the development of waterlogging and soil gleyization under the present economic condition in Jianghan plain.

根据对现有资料的分析，认为在目前的社会经济条件下还难以从根本上阻止江汉平原农田渍害和土壤潜育化的发展。

In order to investigate the compound constructed wetland role on the agricultural waster water purification, we built the biological filter with macrophyte of Zizania caduuciflora and bulrush, gravel and sand as their substrates.

研究了茭草、芦苇两种植物，砾石层、粗砂层、细砂层为基质的生物滤池和木炭吸附池构成的复合人工湿地装置净化溶岩地区农田排水中氨氮、总氮和总磷的去除效果。

The forest community returned from farmland retained the characteristics of original farmland. Its dominant species was Gansu zokor in Qiaoshan,and Chinese zokor in Wuqi.

退耕林地啮齿动物群落保持了原农田群落的特点，其桥山林区的群落优势种是甘肃鼢鼠，而吴旗林区退耕林地为中华鼢鼠。

At the end of the long alley, we found a big big vegetable field full of Kai-lan, Caixin, celery, Chinese parsley, spring onion etc.

在远处的山脚底下，一大片绿色的农田和单层式的传统房舍相连，柔和相衬。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。