Progress in Researches on Evaluation of Quality of Cultivated Land Consolidated from Coal Mining Sub

来源 :Asian Agricultural Research | 被引量 : 0次 | 上传用户:ccj66417
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The evaluation of consolidated cultivated land quality can provide basic information for how to perfect the program of land consolidation,as well as a reference for the dynamic monitoring of farmland quality in mining area. Based on the consultation and analysis of related literature,we can conclude that: firstly,most scholars focus on soil consolidation,while consider little about land use and economic condition. Secondly,foreign scholars usually use crop yields to judge the success of land consolidation,while domestic scholars have been evaluated the quality of consolidated cultivated land synthetically from several aspects,such as soil fertility,soil environmental quality,and farmland infrastructure conditions. Specifically,most of the evaluations are static,and indicators are different. Besides,the quality of consolidated cultivated land is generally low,and it lacks systematic research on technologies for improving quality of cultivated land consolidated from coal mining subsided land. It is concluded that future researches should focus on establishing scientific and feasible evaluation system to realize comparison of quality change in the dynamic course of “ undisturbed-subsided-consolidated” cultivated land in coal mining areas,as well as technologies for improving quality of cultivated land consolidated from coal mining subsided land. The evaluation of consolidated cultivated land quality can provide basic information for how to perfect the program of land consolidation, as well as a reference for the dynamic monitoring of farmland quality in mining area. Based on the consultation and analysis of related literature, we can conclude that: first, most scholars focus on soil consolidation, while consider consider about about use and economic condition. from several aspects, such as soil fertility, soil environmental quality, and farmland infrastructure conditions. technologies for improving quality of cultivated land consolidated from coal mining subsided land. It is said that future researches should focus on establishing scientific and feasible evaluation system to realize comparison of quality change in the dynamic course of “undisturbed-subsided-consolidated” cultivated land in coal mining areas, as well as technologies for improving quality of cultivated land consolidated from coal mining subsided land.
其他文献
2003年1月-2004年12月,我院收治气道异物患儿83例,紧急手术行异物取出,效果满意。现将手术配合体会报告如下。
2001年1月~2002年12月,我院应用藻酸双酯钠注射液治疗短暂性脑缺血发作(TIA)60例,效果满意。现报告如下。
Based on methods for evaluating the overall planning and implementation of land use of domestic scholars, a comprehensive and highly-operable index system and e
胰岛素注射是治疗糖尿病的重要方法之一,多需患者自己实施.为探索胰岛素治疗的社区管理方法,我们对使用胰岛素治疗的糖尿病患者进行了社区护理干预,现将结果报告如下.
Based on field investigation, the rural empty-nesters in Chongqing were comprehensively analyzed from their family conditions, economic conditions, concept of o
县级电视台要办活农村节目,必须按照贴近实际、贴近生活、贴近群众的总要求,明确责任、准确定位,把体现党的意志和反映人民群众的心声统一起来,把每天发生在农业、农村、农民中的
在竞争日益激烈的电视媒体收视市场上,从电视台的宏观决策,到节目编制和排期,从节目质量评估到广告时间价格的制定,收视率的作用日益凸显,已成为衡量电视媒体强弱和自身价值的重要
<正> 黑龙江日报自2001年8月1日改版至今,创造出了风格弥新、与众不同的版式体系。在近半年多的时间里,由于内容和版式的影响力和阅读率,使黑龙江日报不但其发行量稳中有升,
Through the calculation and analysis of the tourism economic spatial relation,it found that Liaoning central urban agglomeration tourism economic spatial relati
内镜下胆管塑料支架引流术(ERBD)作为梗阻性黄疸内镜治疗的基本技术已被确认,在很大程度取代了PTCD.2003年1月~2004年10月,我院行ERBD共48例,均置管成功.效果满意.现报告如下.