耕地

Dynamic change in arable-land resources in Qixia between 1990 and 2000 were studied with the aid of remote sensing.

耕地是一种数量有限的自然资源，保持一定数量的耕地是人类生存和发展的基础。

Based on the acquisition –processing-abstraction of data, the structures an quantities of land use/cover change, the change of degree, the land use/cover dynamic degree and the index of the land use/cover dynamic degree were researched and analyzed comprehensibly in two different periodes(1990-1999,1999-2002) and sum up the conclusion.

结构变化不明显。水域、居民地、耕地动态度比较大，变化较为剧烈；未利用地动态度最小，变化缓慢。1990-2002年间水域、居民地、耕地与其他土地利用/覆盖类型间相互转化面积差额较大，转入面积大于转出面积，即在相互频繁转换同时单边转入明显；林地、草地、未利用地与其他土地利用/覆盖类型间相互转化面积差额不大，处于一种动态均衡状态。

For the purpose of environment protection and reasonable development of scale breeding, Juchao District in Anhui Province, which is situated by the middle of Chaohu Basin, was taken to be studied. The maximum waste load of farmland was estimated through the breeding numbers and respective excretive coefficients. By comparing the actual load of livestock manure with the maximum admissible load, environmental risk of actual breeding scale in each community was evaluated.

以巢湖流域内的安徽省居巢区作为研究区域，结合当地规模化养殖小区的畜禽饲养量、排污量以及有效耕地面积，对畜禽粪便的耕地最大污染负荷量进行了估算，并与当地畜禽粪便的实际负荷量进行比较，对现有养殖规模条件下的环境风险进行了评价。

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。

What farmland protection mirrors is national long-term interests, its carry out the vacancy of main body and land information to forbid is the main reason that urban land uses intertill ground to protect inadequacy.

耕地保护反映的是国家的长远利益，其执行主体的缺位和土地信息不准是城市土地利用中耕地保护不足的主要原因。

The results showed that there were significant differences among parameters of texture feature of the different land utilization. In the desertification, the mean and variance were comparatively high. The gray level was asymmetry, the contrasts between neighboring pixels were significant; while in water and irrigable land, the mean, variance was a little bit low, the grey level was symmetry; the mean, variance and gray level in the forest and dry land was between the above (desertification and water and irrigable land).

不同土地利用类型之间纹理特征参数差异明显，荒漠化土地的均值、方差值较高，灰度分布不均匀，相邻像元反差明显，内部变化剧烈；水体和灌溉耕地的均值、方差值很低，灰度值均匀，内部变化小；林地和旱耕地信息介于上述两类土地之间。

Article 31 The state protects cultivated land and strictly controls turning cultivated land into noncultivated land.

第三十一条国家保护耕地，严格控制耕地转为非耕地。

The Village has 780 mu of paddy fields and 350 mu ofnonirrigated dryland, with an average of 0.6 mu cultivated land per capita (0.4 mupaddy field and 0.2 mu nonirrigated dryland ), an average slightly above that of 0.5mu of the whole province.

全村现有水田780亩、旱地350亩，人均耕地0.6亩（水田4分，旱地2分），人均耕地面积略高于广东省人均0.5亩的数值，水田的比例却是较低的。

The research applied landscape ecology, integrating land using, ecology networks, and the concept of human needed environment model addressed by Odum to build natural and cultural criteria which are used to decide natural factorsand cultural factors. Subsequently, applying the criteria and planning procedures to category land into agricultural and non-agricultural areas. The agriculture areas include basic grain production areas, and leisure agriculture areas. The non- agriculture areas include agriculture of river corridor ecology restoration areas and remnant cultivates lands. Above all, remnant cultivated lands are separated into wilderness, parks or indefinite areas because of different context.

本研究运用之理念包括地景生态学、整合土地使用、生态网络及Odum提出四种人类需求环境模型；据以研拟自然及人文面原则，进行自然因子(NDVI值、坡度、高度、土壤等)及人文因子之准则建构；再依准则及划设流程规划出农业及非农业区域二类型，其中农业类型包括基础粮食生产区、休闲农业区，非农业区包括河廊农业生态复育区及剩余耕地，其中剩余耕地又依背景因子不同划设为荒野化、公园化或模糊区使用。

In order to carry out praedial master plan efficiently, it's necessary to analyse and control existing land utilization. Our first task is to take advantage of arable land. Along with expanding economy, the increasing of population, the faster infrastructure construction and unceasing development of countryside, the demand of land is higher and higher. It made a big stress for the limited land resource.

为了搞好土地的总体规划工作，必须掌握现有的土地利用现状，对目前的土地利用状况做出分析评价，耕地的合理利用是我们当今的首要任务，随着经济的发展、人口的增多，基础设施建设的加快以及城镇的不断拓展，对土地的需求愈来愈大，这就给十分有限的耕地资源造成了巨大的压力。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。