耕地的

The paper applies NDVI as the main index to monitor the entironment of each county in study area. We finded that counties main covering with woodland had the best health status, and counties main covering with hungriness grassland and woodland had comparatively bad health status affected by climate factors.

使用NDVI为主要指标对研究区各旗/县生态环境进行监测，以林地为主的旗/县生态系统健康状况最好，以荒漠化草原和耕地为主的旗/县受气候因素的影响，健康状况较差。

In this paper, the Basin of Northwest Hebei Mountains as the study area, the combination of the remote sensing and GIS technologies will be applied, Firstly the objects of evaluation include forest land、. meadow 、 a part of orchard、 uncultured grass land、 sandlot、 bare land and the margin suitable and unsuitable farming land, the unit of evaluation is 30m*30m grid. Secondly, on the base of probling and building the spatial and attributive database of suitability evaluation through models such as digital elevation and inverse distance weighed interpolation, it establishs the factor system of suitability evaluation of forest land.

本论文以冀西北间山盆地区为研究区域，将地理信息系统与遥感技术相结合，确定了冀西北间山盆地区现有林地、部分园地、牧草地、部分未利用地以及边际适宜和不适宜的耕地为评价对象，以30*30栅格为评价单元，在借助数字高程、反距离加权插值等模型探讨并建立林地适宜性评价因子空间及属性数据库的基础上，对研究区的林地适宜性评价建立了该研究区评价指标体系。

Because of the excessive silt,silt deposition of local irrigational canal system and cultivated land were very serious,and the local cultivation was influenced seriously.

阿瓦提县灌区是阿克苏地区的产棉大县，由于灌区水源含沙量较大，导致灌溉渠系、耕地淤积，严重影响灌区的农业生产，针对阿瓦提县灌区泥沙淤积问题，提出了相应的处理方案。

Until 1959, when the Dalai Lama last presided over Tibet, most of the arable land was still organized into manorial estates worked by serfs.

直到1959年，当达赖喇嘛上次主持西藏，大部分的耕地仍然是有组织的进入庄园屋的工作，由农奴翻身做。

Brown soil and meadow soil from cultivated land were used in the laboratory and pot experiment to study the effects of applying humic acid and organic manure on potassium fixation and release in the soil,The result shown: Applying of humic acids could accelerate potassium releasing and decrease the fixation of added potassium.

以耕地棕壤和草甸土为供试土壤，研究了施用腐殖酸和有机肥对土壤固钾与释钾作用的影响，主要结果如下：施用腐殖酸能够促进土壤钾素的释放和降低土壤的固钾量。

Second, the threshold for each feature was brought up by using CART Algorithm. Finally, the multiple cropping index of 15 provinces of Northern China were extracted in 2005. Then, the result was compared with that of former researches, and it shows that DT method is more efficient.

最终，采用MODIS（moderate-resolution imaging spectroradiometer）/EVI数据，提取了2005年中国北方15个省市区的耕地复种指数，与之前的研究结果进行比较验证发现该方法具有较高的提取效率和精度。

Avec des cham qui représentent à peine 7％de la surface cultivée du monde, notre agriculture nourrit une population qui dépa e un cinquième de la population mondiale.

我们的农业以不到世界百分之七的耕地面积，却养活了超过世界五分之一的人口。

Which shows that the grade of water resources development is badly low in Longhetun, measures of water development to diverse types of plowland according to the difference in south- or north-slope and the bottom of the depression.

结果表明龙何屯水资源的利用程度极低，存在洼地南北坡和洼地底的差异，提出针对不同耕地类型、不同作物种类的水分开发利用方式。

The changes of all land using types indicated that all the 11 countryside's grassland reduced, unused-land increased, and plowland increased only in those countryside along the river and have commodious river valley.

以乡为单位，各类型用地的变化显示，全县11个乡镇的草地面积减少，未利用地面积增加，耕地面积只在沿江具有宽阔河谷的各乡有所增加。

And pointed out that there has no certain relation between this kind of management and the protection of plowland, and baffles the communication between countryside and town, increases the cost of social management, does no good to ease the contradiction between countryside and town.

本文还从宅基地法律关系调整的利益的角度，分析了严格限制宅基地交易与农民利益要求、城镇居民合理利益要求的冲突，指出这种法律调整与耕地保护之间没有必然联系，同时阻碍城乡交流，增加社会管理成本，无益于城乡矛盾缓和。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。