农田

Using Remote Sensing to monitor cotton grow condition is very useful for cotton field management.

通过遥感技术监测棉花长势，对指导棉花农田管理有重要的实用价值。

Two years age Francis worked with the Conservancy to include his farm in a county farmland protection program.

两年前，弗朗西斯与环保协会合作，把自家的农场纳入了农村农田保护规划中。

County's forest coverage rate of 60% to a farmland water quality standards for the development of the green, pollution-free, organic products provide a good ecological conditions.

全县森林覆盖率达60%，农田水质达到一级标准，为发展绿色、无公害、有机农产品提供了良好的生态条件。

Compared with the soil water content,it will be much more scientific to use the soil water potential as the lowest limit index of crop non-sufficient irrigation and be easier to be applied and extended.

农田非充分灌溉中，习惯将土壤含水率作为控制灌溉的指标，但实质上，用土壤含水率作为控制指标是有缺陷的。

Crop drought index ; wheat in dryland ; drought monitoring and prediction ; service system

作物旱情指标；旱作小麦农田；干旱监测预警；服务系统

In the recent 50 years, farmland ecosystem in Sanquan town develops from simple food production to diversification ecosystem with continuous increasing in multiple crop index and continuous expanding in paddy field area.

近50年来，南川市三泉镇农田生态系统由单纯的粮食生产系统向多种经营生态系统发展，复种指数不断上升，水田比例不断提高。

We took administrative districts at the county level as valuation units, estimated the current economic values of 7 ecosystem services (gas diversification, organism production output, and climate control conservation of water supply, soil formation and conservation, and environment purification, maintenance of organism culture and enter) for 6 biomes (forest, grassland, desert, farmland, wetland, and city).

以县级行政区为评价单元，核算了森林、草地、荒漠、农田、湿地和城市6大类和气体调节、水源涵养、土壤保持、环境净化、生物多样性维护、生物产品产出、文化娱乐7个方面的生态服务价值。

The job of agricultural drainage is to accelerate removing of the excessive water and salt in soil,control the underground water table at favourable depth,so that it can assure crops growing well and avoid salinization.

农田排降任务是加速排除土壤中过量的水分及盐分，控制地下水位在适宜的深度，保证作物的正常生长及防止土壤返盐。

Along both sides of the strait were farmlands, wetlands, reed, ditch Branch, wild and lonely.

沿河两岸曾经错落地散布着农田、湿地、芦苇、沟汊，冷僻的地方野气愈重，&秋风一起，丛苇萧疏，日落时洪澜回紫&。

Based on experimental data from laboratory and field experiments, the relationship between rainfall recharge and groundwater level under farmland drainage is analyzed in this paper.

以室内一维土柱试验和室外水平衡小区观测资料为基础，对农田排水条件下降雨入渗补给与地下水埋深关系进行了分析，根据降雨、蒸发与地下水埋深关系相似的规律，仿照国内外排水计算中较为广泛应用的阿维里扬诺夫经验公式的结构形式，建立起降雨入渗补给与地下水埋深的关系，并采用室内外试验资料对该关系式进行了验证。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。