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The land use pattern had changed by a relatively large margin in Neijiang city from 1997 to 2005. The main tendency of this change is that with remarkable reduction of cultivated land that decreased by 9936.11hm~2, unutilized land and water area, while garden land, forest land that increased by 7032.23 hm~2, grass land and building land increased notably. And during the research time, the speed of land use type change reduced from garden land, traffic land, forest land, residential areas and industrial and minings land, cultivated land, unutilized land to water area. The main trend of general dynamic degree changed from progressive increase to degression. From the analyses of land use diversion matrix, we know resulting in the quantity change of land use was that cultivated land being occupied by construction,adjustment in structure of agriculture and the implementation of the national reforesting formerly cultivated land policy in Neijiang city.

结果表明:1997~2005年间,土地利用类型发生较大幅度变化,总体上呈现耕地、未利用地、水域面积显著减小和园地、林地、牧草地、建设用地面积增大的趋势,其中耕地面积减幅最大,达9936.11hm~2,林地增幅最大,达7032.23 hm~2;土地利用类型变化速度依次为园地>交通用地>林地>耕地>居民点及工矿用地>未利用地>水域,其中园地为2.67%,水域为-0.01%,综合土地利用动态度呈现先递增后递减的趋势;从土地利用类型转移矩阵分析得出,建设用地占用耕地、农业结构内部调整、&退耕还林&是导致内江市土地利用类型数量变化的重要原因。

The shovelfuls of loam, black as 'et, brought there by the river when it was as wide as the whole valley, were an essence of soils, pounded champaigns of the past, steeped, refined, and subtilized to extraordinary richness, out of which came all the fertility of the mead, and of the cattle grazing there.

一铲一铲的黑土,像墨玉一样漆黑,是在河流还同山谷一样宽阔时被冲到这儿的,它们是土壤的精华,是过去被打碎的原野经过浸泡、提炼,才变得特别肥沃,从这种土壤里又长出丰茂的牧草,喂养那儿的牛群。

The Buffalo and Elk tell us that they eat the herbs in the spring and summer just as we as ascending humans consume herbal tinctures in support of their physical ascension.

野牛和麋鹿告诉我们,它们会在春夏两季吃牧草,就象我们提升人类食用药草酊剂一样来支持它们的身体提升。

Experiments of bioremediation and control were conducted with the alkali meadow grass planted in saline soil for 3 years. Contrasted with control group, topsoil desalination rate was up to 77.00%; pH value decreased 0.25 pH unit; soil bulk density decreased 0.14 g/m^3; total porosity increased by 5.29%; soil aggregate structure increased by 23.14%; soil water content increased 70.30 g/kg; average triennial alkali grass yield was 36000 kg/hm^2. In addition, planting forage in saline soil as a medium and establishing a compound agro-forestry-animal system promoted the sound combination of planting industry, forestry, and livestock husbandry. Because of the reasons, utilization ratio of land reached more than 184.00%; the income of land increased from 16300 to 35500 yuan/hm^2 average income per farmer in the controlling region increased by 66.00%, from 2160.70 to 1300.80 yuan.

生物修复与调控试验研究表明,草甸盐土经种植碱茅草3a,耕层土壤与对照相比脱盐率达77.00%,pH值下降了0.25个单位,容重降低0.14g/立方公尺,总孔隙度增加5.29%,团粒结构增加了23.14%,自然含水量增加70.30g/kg.3年生碱茅草平均产草量36000 kg/hm^2;盐化耕地采用以种植牧草为中介,将种植业与农区林业、畜牧业有机结合成互相依存,互相促进的农林牧复合生物系统治理后,土地利用率可达184.00%以上,可获得16300~35500元/hm^2的经济收入,治理区农户人均纯收入由1300.80元增加到2160.70元,增加了66.00%。

For some kinds of vegetables and pasturages, the contents of some heavy metals surpass the relevant quality standards, so when some crops were planted on the substrates, the uneatable species should be selected preferably and if some kinds of vegetables and pasturages must be adopted, the output could not be provided to mankind and also not be used in farming, in order to avoid harming peoples'health.5 The expediency evaluation model of pioneer plant on substrates was established and some plants were studied. The results show that the expediency evaluation of pioneer plants were respectively that clover was expedient to substrate 1, juniper, cotton and fescue were expedient to substrate 2 and juniper, annual bluegrass, fescue, cotton and clover were expedient to substrate 3.6 Some indexes to evaluate the capability of the phytoremediation on heavy metals and the comprehension about hyperaccumulator were put forward.

有多种植物的重金属含量超过了相应的国家标准,因此在基质上种植植物时,尽量选择非食用性植物品种,即使种植了蔬菜和牧草等植物,也不应将收获后的产品供人类食用或用于畜牧生产,以免危害人体健康。5建立和研究了复垦基质先锋植物的适宜性评价模型,结果表明,不同基质中适宜的先锋植物分别如下:基质1为苜蓿,基质2为桧柏、棉花和高羊茅,基质3为桧柏、早熟禾、高羊茅、棉花和苜蓿。6探讨了评价重金属元素植物修复能力的指标体系和&超富集植物&的概念。

Indian couchgrass and bahia grass\'s is better during the latter period.

豆科牧草在某些时期盖度相当好。

Shandong Yucheng Yatai Machinery Manufacturing Co., Ltd is a professional manufacturer of harvest machinery and its main products are wheat and rice harvester, wheat and bean harvester (cut width: 1.4 to 1.8 meters), 1.25 to 1.4 meter mower, 1.4 to 2.1 meter grazing cutter , farming machinery and small size loader.

山东禹城市亚泰机械制造有限公司系收获机械专业生产厂,主要产品有麦稻割晒机、小麦收割机(割幅1.4--1.8米)、1.25--1.40割草机、1.4-2.1牧草收割机、2-3行玉米秸秆收割机、芦苇收割机及耕作机械、小型装载机。

Shandong Yucheng Yatai Machinery Manufacturing Co., Ltd is a professional manufacturer of harvest machinery and its main products are wheat and rice harvester, wheat and bean harvester (cut width: 1.4 to 1.8 meters), 1.25 to 1.4 meter mower, 1.4 to 2.1 meter grazing cutter , farming machinery and small size loader.

山东禹城市亚泰机械制造有限公司系收获机械专业生产厂,主要产品有1.4-2.1往复式牧草收割机、2--3行玉米秸秆收割机、芦苇收割机、黄麻收割机、麦稻割晒机、1.4--1.80小麦收割机、1.0--1.80甩刀式割草机及耕作机械、小型装载机。

Shandong Yucheng Yatai Machinery Manufacturing Co., Ltd is a professional manufacturer of harvest machinery and its main products are wheat and rice harvester, wheat and bean harvester (cut width: 1.4 to 1.8 meters), 1.25 to 1.4 meter mower, 1.4 to 2.1 meter grazing cutter , farming machinery and small size loader.

山东禹城市亚泰机械制造有限公司系收获机械专业生产厂,主要产品有1.4-2.1往复式牧草收割机、1.0--1.80甩刀式草坪割草机,0.6-0.81往复式草坪修整机,2--3行玉米秸秆割晒机、芦苇收割机、黄麻收割机、1.0-5.0吨农用拖车,麦稻割晒机、1.4--1.80小麦收割机及耕作机械、小型装载机。

To improve the reconfiguration of hillside field into terrace,holistic techniques of soft-ridged bench terrace engineering,including revegetation with tr...

在生物方面,按照&生物多样性&理论和&景观生态学&原理,把树木和牧草种植在梯田的埂坡外侧面,达到梯田林网化和稳定地埂的目的。

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