简介：ＨＡＫＫＡ“ＦＥＮＧＳＨＵＩＦＯＲＥＳＴＳ”：ＴＨＥＩＲＰＲＥＳＥＲＶＡＴＩＯＮＡＮＤＶＡＬＵＥ￥ＢｙＮｉＧｅｎｊｉｎＴｈｅＨａｋｋａｐｅｏｐｌｅｆｏｒｍａｎｉｍｐｏｒｔａｎｔａｎｄｄｉｓｔｉｎｃｔｉｖｅｃｏｍｐｏｎｅｎｔｏｆｔｈｅＨａｎｎａｔｉｏｎ...

简介：Asanimportambio-resource,insectresourceshavenotbeenputintofullplayashealthyfood.Basedonstudyandanalysis,thenutritivevalueofedibleinsectswasreviewed.Theresultsshowedthatinsectshaverichprotein(20%-70%),aminoacid(30%-60%),fat(10%-50%),fattyacid,carbonhydrate(2%-10%),mineralelements,vitaminsandotheractivatedelementswhicharegoodforhuman'shealth.Asproteinresources,thenutritivevalueofedibleinsectsisasgoodasanimalandplantresources.Insec...

简介：Thispaperisasummarizationonevaluationofvalueofartificialforest.Themaincontentsinclude:(i)thedifferenceinconceptsbetweenecologicalfunction,ecologicalefficiencyandecologicalbenefitsofartificialforest;(ii)themotiveandseveraltachesofeconomicfeedbackorcompensationforecologicalbenefit;(iii)theecologicalefficienciesofartificialforestandthemaincorrelativefactorswhichincludestheecologicalefficienciesofartificialforestandthemaincorrelationfactorsinfectingtheecologicalefficiency;(iv)thebasicmathcorrelationsbetweenecologicalefficienciesofartificialforestandtherelatedfactors;(v)servicerangeoftheecologicalefficienciesofartificialforest;and(vi)thebasicprincipleofmeasurementofecologicalefficienciesofartificialforest.Attheend,thebasicmethodsofmainecologicalefficienciesofartificialforestareexpatiated.

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简介：Foresthasastrongfunctioninstoringwater,conservingsoilandprotectingfarmland.Inthestudy,basedonfleldmanagementandsurvey,theseeffectsofforestinBeijingweredeterminedandquantified.Accordingtotheprinciplesandmethodologyofenvironmenteconomics,thevaluesofforesttoconservesoilandwaterwereaccounted.TheresultshowsthatthetotalvalueofforesttoconservesoilandwaterinBeijingisasmuchas1129.58×10~8yuan,inwhichthevalueofwaterstorageis1107.92×10...

简介：当为林地生产提起机械化层次时，林地机械的合适的匹配是重要的。在匹配的过程，林地机械不必仅仅为解决问题的专家知识，而且改进方法。我由在一个分析、层次的过程计算各种各样的林地机器的量的参数的类似建议基于盒子的推理的联合(CBR)(RBR)并且基于规则的推理。我计算了在森林工业过去常启用更好的选择的机械的类似并且设备匹配。我建议基于单个参数重量在申请的进程在被修改的偏差的广场的和调整方法的重量值。在系统设计的过程期间，我提出了一个设计方法知识库并且产生了推理的一张动态网集成森林工业的过程的框架机械选择和重量值调整。这启用推理效率的完全的系统和改进的范围的扩大。我用一个实际例子表明这个方法的有效性和有实行可能。

简介：Thepapercameupwiththebasicprinciples,technologysystem,planningandforestgovernancesystemofclose-to-natureandvalue-orientedforestmanagementonthebasisofdiscussionsonitsconceptandtheoreticalfoundation,andfinallyintroducedinitialeffectsofclose-to-natureandvalue-orientedforestmanagementimplementedinHarbin.

简介：由偶然的价值方法，我们在Heilongjiang省学习了Hongxing国家自然保护区(HNNR)的沼泽地生态系统服务的弃权价值，东北中国。为HNNR的保护的愿意付钱的回答者(WTP)的比例是63?%。WTP比率受回答者的地理区域，接触性质，个人偏爱，和熟悉的度影响。WTP价值受年龄，教育水平和回答者的事业影响。主要推理因为拒绝支付保护HNNR的人是我不对HNNR熟悉，我没为因为低收入的另外的花有能力。加权的平均单个WTP价值是为有WTP的所有回答者的CNY59.26元ind1年1。HNNR的全部的弃权生态系统服务价值是CNY1430在2013的百万元。遗产价值被存在价值和选择价值最高跟随。从在HNNR的高生态系统服务价值，为保护自然生态系统和自然资源的人的持续使用构造自然保护区是很重要的。

简介：Background:Around2000plantspeciesoccurnaturallyinLorestanProvinceofwhich250speciesaremedicinalandmyrtleisoneofthem.Myrtleisashrubwhoseleavesandfruitshavemedicinalvalueandthus,ifmanagedandharvestedproperly,couldproducesustainedeconomicbenefits.Inrecentyears,however,overhalfofthemyrtlesiteareaswasdestroyed,duetoinappropriatemanagementandexcessiveharvestingpractices.Thus,comingupwithapracticalharvestingapproachalongwithidentifyingthosefactorsdamagingthesites,seemstobeverycrucial.Methods:Inourinvestigation,wecalculatedtheconservationvalueperhectareofmyrtleintheDoorehforestareainLorestanProvince.UsingtheContingentValuation(CV)andDoubleBoundedDichotomousChoice(DBDC)methods,wedeterminedthewillingnesstopay(WTP)formyrtleconservation.TheWTPwasestimatedwithalogitmodelforwhichindiceswereobtainedbasedonamaximumprecisioncriterion.Results:Theresultsshowedthat86.67percentofpeoplewerewillingtopayfortheconservationofthesemyrtlesites.AveragemonthlyWTPperfamilywascalculatedas$0.79.TheannualconservationvalueintermsofWTPforthepreservationofthemyrtlesitesinDoorehwasestimatedas$102,525.Amongthevariablesofthemodelpresented,educationhadapositiveimpact,whiletheamountproposedforpaymentandfamilysizehadanegativeimpactontheWTP.Conclusions:Ourestimateofthevalueofmyrtleconservationshouldprovidejustificationforpolicymakersanddecisionmakingbodiesofnaturalresourcestoimplementpoliciesinordertoconservethenaturalsitesofthisspeciesmoreeffectively.