sustainable yield

Maximum sustainable yield theory is important and has been widely used in agriculture, forestry, fishery, pest control and biological resources protection.

最大持续产量原理在农业、林业、渔业、有害生物防治、生物资源保护等方面有着广泛的应用。

Lastly, use the model of Optimum Sustainable Yield to realize the environmental protection of sustainable tourism in tourism vacation belt around city of Jinan city.

第四，运用旅游开发最佳可持续产量的经济模型实现济南市环城市旅游度假带可持续旅游的环境保护。

Stock assessment is not only to forecast the static optimum fishing effort and sustainable yield, but also to assess the reactions of fish and fishermen to management choices and other changes.

资源评估不仅仅是预测静止的最佳捕捞努力量和持续产量，而是评估鱼类和渔民对管理决策和其它变化的动态反应。

First it is given to the sufficient conditions that guarantee the existence and global asymptotical stabling of positive periodic solution for the models. Then the maximum sustainable yield per unit time is chosen as management objective, the corresponding optimal population level are determined.

在保证惟一的全局渐近稳定周期解存在的条件下，以单位时间的持久产出作为最终管理目标，得到相应的最佳种群水平和捕获努力量。

As long as high fishing efforts exist in the Yellow Sea, it is impossible for the stock to recover and to reach maximum sustainable yield.

只要黄海周围过高的捕捞力量的存在，小黄鱼资源很难得以恢复并达到最大持续产量。

Maximum Sustainable Yield of Linear Growth Population With Allee Effects for Mammals

线性增长的哺乳种群在Allee效应下的最大持续生产量

In addition, the maximum sustainable yield ( MSY) and the optimum fishing effort ( FMSY) were estimated on the basis of fishery statistics data by Schaefer model and Fox model.

渔捞业中的最佳经济产量是指能使持续的纯利润最大的产量，此时投入的捕捞努力量为最佳经济捕捞努力量。

Review on assessment methods of groundwater sustainable yield

地下水可持续开采量评价方法综述

One approach the maximum long-term yield is as the maximum sustainable yield, or MSY approach.

长期 收获最大产量的一种方法是最大持续产量即MSY法.

Sustainable yield of fishery resources in the Taiwan Straits and its adjacent waters

台湾海峡及邻近海域渔业资源可持续开发量研究

Research on Groundwater Sustainable Yield in Medium and Small Basins of North China

我国北方中小流域地下水可持续开采量的研究

'Our long-term business depends on a sustainable supply of high quality cocoa, and we believe that securing cocoas future begins with increasing yield for the smallholder farmers.'

我们的长期业务依赖于高质量可可的可持续供应，我们相信，为确保可可在未来的供应，必须提高小农户的产量。

At present, the actual fishing effort and the fish yield have exceeded the maximum sustainable yield and the optimum fishing effort.

1997年实际渔获量和捕捞力量均超过了估算的最大持续产量和最大持续捕捞力量。

The highest rate at which a potentially renewable resource can be used indefinitely without reducing its available supply is called its sustainable yield.

在没有减少可用物资的情况下，能够不定期地使用潜在的可再生资源所达到的最高比率被称为可持续性收益。

Estimation of maximum sustainable yield in the fully exploited fisheries

已充分开发渔业中估计最大可持续产量的一种近似方法

A Thousand Marbles The production model produced a maximum sustainable yield ( MSY) of 99.6 Kilo-MT and an optimum fishing effort ( f_opt) of 114.76 Kilo-fishing days.

其结果是99.6千公吨的最大持续产量和114760作业日的最佳捕捞努力量。

It calculates the maximum sustainable yield, maximum sustainable economical yield and corresponding fishing efforts using the equlibrium production models.

运用平衡产量和经济模型分别评估了山东省海洋捕捞的最高持续渔产量与最大持续经济产量及其相应努力量；

Recombinant DNA is a new method to create transgenic rice with foreign genes from other species. This method could be helpful to increase rice yield, quality and consequently to solve the problem between population expansion and sustainable development.

利用DNA重组技术将外源基因导入栽培稻创造转基因水稻的方法为提高水稻产量、抗性和品质，解决日益增长的人口和粮食紧缺矛盾以及农业可持续发展开辟了一条崭新的途径。

Study on the Sustainable Yield of Groundwater in Yanqi Basin, Xinjiang

新疆焉耆盆地地下水可持续开采量研究

Based on the theory of MSY ( Maximum Sustainable Yield), a general optimal-stocking model was formulated.

进一步根据最大可持续产量理论构建了最适放养量模型。

Productivity and maximum sustainable yield of fishery resources in Taiwan Strait and its adjacent waters

台湾海峡及其邻近海域渔业资源生产力和最大持续产量

Methods for assessment of maximum sustainable yield using recruitment curve parameter

用补充曲线参数估算最大持续产量的方法

Definition and evaluation system of groundwater sustainable yield in watershed

流域地下水可持续开采量的定义及评价体系

Estimation of the maximum sustainable yield for chub mackerel and round SCAD in the East China Sea by the surplus production models fitting expert system

用剩余产量模型专家系统（CLIMPROD）评估东海鲐鲹鱼类最大持续产量

Based on the statistical data, the Maximum Sustainable Yield ( MSY) for the different stocks of chub mackerel and round scad in the East China Sea were estimated by the surplus production models fitting expert system ( CLIMPROD).

根据统计资料，利用剩余产量模型专家系统（CLIMPROD）对东海鲐鲹鱼类最大持续产量（MSY）作了评估分析。

Two Players' Harvesting Strategies in Offshore Fishing Industry Based on Maximum Sustainable Yield

基于持续高产的近海渔业双寡头捕捞策略

Can estimate the maximum sustainable yield in absolute terms; With continuing to turn, the reaction is quick, the color of product is light and the product yield is high.

可以估计最大持续产量的绝对值；

It treat fish population or resource stock as a study unit, analyze the relationship between sustainable yield, optimum fishing effort and population size.

它是把种群或资源群体作为一个研究分析的单位，研究一个资源群体的持续产量、最佳捕捞努力量和资源群体大小之间的平衡关系。

Main published work included length frequency analysis, virtual population analysis, production models, and maximum sustainable yield of Qatari fishery.

主要研究成果包括体长分析，世代分析方法，产量模型和卡塔尔国渔业的最大持续产量。

Technological System for High Effective Sustainable Agriculture in High Yield Region in Northern China Plain

华北平原高产区持续高效农业方向及其技术体系