查询词典 farmland

Soil was found to be a slight carbon sink during recovery processes in the agro -pastoral area of the northern Loess Plateau with SOCD, being （2.11 kgCm-2） in scrubland 〉（1.95 kgCm-2） in secondary m-2 ） in artificial grassland 〉（ 1.69 kgCm-2 ） in abandoned farmland and 〉（1.68 kgCm-2） in farmland.

以黄土高原北部水蚀风蚀交错带地区不同生长年限的紫花苜蓿人工草地及其退化后形成的次生草地为主要研究对象，探讨了SOCD的动态变化特征。

The future of the world will be wonderful and green. People can see the Selva, Savanna, rainforest of temperate zone, grassland of temperate zone which are not like present forestation, artificial forest or withdrawing from the farmland and restoring the forest, nor withdrawing from the farmland and restoring grassland.

未来的世界是一个美好的绿色世界，人们看到的是热带雨林、温带雨林、热带草原、温带草原，而不是现在的植树造林﹑人工林，或者退耕还林，更不是现在的退耕还草。

Beijing is provided with typical urban landscape, forest land is the maximal and basal landscape patch type (area proportion 42.534%), glebe field (28.754%),spinney land and urban (26.912%) and town residential landuse (10.344%) are main landscape patch categories in Beijing. From landscape, landscape patch types and landscape patch categories levels, landscape patch distributing centralize, and patch shape is simple, main landscape patch fractal dimension indexes are under 1.1, so urban landscape pattern is high influenced by human disturbance.2. From 1985 to 2007, Beijing landscape pattern variational characteristics are as follows:(1) During 1985-2007, patch types and categories change is little, but area and patch number of patch types and categories change distinctly. Town residential landuse area increased 7.66% of Beijing total area, farmland and forest land area decrease in the mass. The total patch number increased at first then decreased. taking one with another, the total number is decreasing, and patch number of farmland and forest land are most distinct.

本研究的主要研究结果如下：1、北京市具有典型的城市景观特征，林地用地的面积占市域面积的42.534%，为基质景观斑块类型，旱田(28.754%)、灌木林(26.912%)、城镇用地(10.344%)是北京市主要景观斑块种类；从景观、景观斑块类型以及景观斑块三个层次的研究均表现出北京市各景观斑块类型及景观斑块集中分布的现象十分突出，斑块形状简单，主要景观斑块种类的景观分维度指数值均不足1.1，表明城市景观格局受到了较大的人为影响。2、北京市1985-2007年间城市景观格局的主要变化特征表现为以下几个方面：(1)在研究时段内，北京市景观斑块种类变化不大，景观组分面积和斑块数变化明显，其中最为显著的是北京市城镇建设用地面积呈单纯的增加趋势，增加幅度为北京市总面积的7.66%，农业用地与林地的面积虽呈波动变化但总体呈减少趋势；景观斑块数量先增后降，总体呈下降趋势，其中耕地与林地斑块数的变化最为明显。

With the development of civilization, peoples demand became more and more , land, as an important product stuff ,the intensity of landuse became higher and higher ,as the result: the quantity of farmland decreasing ; average area of tilth deducing ; urban expanding ; in land structure table ,built-up land ascending ,farmland and non-used land declining .

经济的发展，人类社会的进步，人的需求不断的得到满足，土地作为一项重要的生产要素，其利用结构也随之发生着变化：耕地总量的减少，人均耕地面积的下降，城市的扩张，土地利用结构表中，建设用地比例的上升，农用地和未利用地比例的下降等等。

Focus on the overall planning of land use and land violations of the national industrial policy, ultra vires land, the illegal use of farmland, especially basic farmland land violations.

重点查处违反土地利用总体规划和违反国家产业政策批地、越权批地、非法占用耕地特别是基本农田等土地违法行为。

The comparative advantage degree of the main agricultural products in planting industry were calculated and comprehensively judged The research results showed that Napo County had no comparative advantage in farmland-intensive agricultural products such as grain because of being in lack of farmland resources, backward farming mode and high production and sale cost, But it had an obvious comparative advantage in labor-intensive and resource-monopoly economic crops such as Illicium verum, Chinese herbal medicine and silkworms.

研究结果表明，那坡县因耕地资源匮乏、耕作方式落后和生产销售成本高而在粮食等耕地密集型的农产品上缺乏比较优势，而在八角、中草药、桑蚕等劳动密集型和资源垄断型的经济作物上具有明显的比较优势，建议把重点品种划分为3个层次进行培育和发展。

In order to keep the food supplies safe, the authors forecasted the amount of the cultivated land in future using the Lindo model, decompounded the basic farmland index using the method of entropic coefficient, selected the cultivated land into basic farmland using the method of approaching perfect point.

为保证粮食安全，运用Lindo模型预测了规划期的耕地数量，运用熵权系数法等方法进行了基本农田的指标分解，并运用逼近于理想点的方法划定基本农田。

Through the comparative analysis of the arthropod community between intercropping system and the three control systems～the weeding jujube yard system, not weeding jujube yard system and the system of farmland, it is showed that the intercropping system have a more richer neutral arthropod groups. Compared to Weeding jujube yard system and system of farmland the intercropping system have more advantages in natural enemies groups and more disadvantaged phytophagy groups. And the intercropping system can rebuild the arthropod community more faster than the other systems after the system was seriously disturbed, so it is than compared to other three systems the intercropping system have more proper structure and more stronger regulation ability and also more stronger ability to control pest.

对枣粮间作系统和三种对照系统，即除草枣园系统、未除草枣园系统和农田系统的节肢动物群落进行对比分析发现枣粮间作系统具有更为丰富的中性节肢动物类群，比起除草枣园系统和农田系统有更优势的天敌类群和更劣势的植食性类群，且在遭受生境的巨大变化后新生境重新形成时枣粮间作系统的各亚系统能更迅速的形成节肢动物群落和各种功能类群，说明枣粮间作系统比三种对照系统的节肢动物群落有着更合理的结构、更强的调控能力和更强的控害能力。

If E3 or E5 blend is implemented in Taiwan, the fuel ethanol demand will be satisfied by farmland recultivation. As to E10 blend, the production of recultivated farmland may not satisfy the fuel ethanol demand.

且台湾地区若推行E3甚或E5，经由农地复耕可达到所需燃料酒精需求量，至於E10则无法由台湾自产燃料酒精完全供应之。

After water attaining a designated standard,some reclaimed water went industry's,some went farmland irrigation,the rest for storage which mainly used in farmland irrigation,forestry,con—servation of water and soil tO reduee it to discharge into the South-to-North Water Diversion Project／or guaranteeing the water quality which was the key research item.

充分利用中水灌溉以减少其排入南水北调输水干线，保证调水水质，是南水北调工程研究的重要项目，现就截污导流中水灌溉充分利用情况进行了分析。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。