摘要
黄河三角洲地区滩涂资源丰富,滩涂面积随着河流泥沙入海淤积的不断增加,有着巨大的开发潜力,但目前该区的滩涂开发水平低和方法简单,并产生了一些负面影响,因此对滩涂资源的适宜性评价显得尤为重要。目前人工神经网络主要应用于自然科学和工程技术等领域,但在滩涂的适应性评价中应用较少。本文以山东省东营市滩涂资源为例,选取地貌类型、土壤含盐量、土壤类型、土壤质地、土壤全氮含量、土壤速效磷含量和土壤速效钾含量等限制因子作为滩涂用地评价指标体系,采用BP神经网络方法对东营市三县两区的滩涂利用现状进行适宜性评价。结果表明每个县区都有最适宜本区开发的等级,与东营市实际情况较吻合,该方法具有很强的实际应用价值。针对东营市滩涂开发利用中存在的一些问题,提出了合理开发的建设性对策。
Shallow seas and tidelands resources are considerably rich over the Yellow River delta,which is continually growing with increasing river silt to deposit.Exploitation and utilization levels of intertidal zone resources are,however,quite low,with exhibiting large potential to improve.The current mode of the exploitation of intertidal zone resources falls short of a number of aspects,such as a relatively low efficiency,an uncoordinated relationship between exploitation and protection of these resources,a relatively fragile environment,and inadequate water supply.To that end,performing a reasonable evaluation of the suitability of the intertidal zone resources is of particular importance to appropriately make full use of and protect them as well.First,the authors investigated natural and economic conditions with regard to shallow seas and the tidelands environment of Dongying City in the Yellow River delta areas,Shandong Province.An artificial neural network was employed to evaluate the suitability of the intertidal zone resources,with the objective to achieve more efficient mode of resources utilization and sustainable development.A BP network for evaluating the development and utilization of the intertidal zone resources was constructed by accounting for a multitude of key factors which can characterize the comprehensive degree of suitability,involving topography type,soil salinity,soil type,soil texture,soil total nitrogen,soil available phosphorus,and soil available potassium.Results showed a wide range of degrees of suitability for exploitation in each subarea of Dongying City.Suggestions on reasonable planning,exploitation,and protection of the intertidal zone resources over the study area are given as follows：formulating reasonable planning for exploitation and reinforcing the management of enclosing tideland for cultivation,optimizing the industry structure and elevating productivity,as well as reasonable utilization of water resources and enhancing economic development.This study provides a basis for evaluation of the suitability of intertidal zone resources exploration,which would be useful for relevant studies in the future.
出处
《资源科学》
CSSCI
CSCD
北大核心
2010年第12期2336-2342,共7页
Resources Science
基金
国家自然科学基金项目(批准号:40599424和40473006)
甘肃省自然科学基金(批准号:1010RJZA020)
西北师范大学科研骨干和青年基金(批准号:nwnu-kjcxgc-03-59和nwnu-qn-06-30)
