Based on making summarize and conclusion on the definition now inner and outside sustainable use for land resources , the writer recognizes the basic intension for sustainable land use is , first of all , on the basis of to keep and continuously raise capacity of land recourse and ecological environment , based upon the principle that development and use have to combined with protection and management , to use land in reasonable , full , high effective and intensive way . when meet the need for people live to realize of increasing land productivity , improving ecological environment , increasing land capital accumulation 在归纳、总结国内外目前有关土地资源可持续利用定义的基础上，笔者认为土地资源可持续利用的基本内涵就是在维持并不断提高土地资源和生态环境容量的前提下，遵循开发利用和整治保护相结合的原则，适度、充分、集约高效的利用土地，在持续满足人类生存发展需要的同时，实现土地生产力的不断提高、生态环境的日益改善和土地资本的积累增值。
In all , the sustainability of land use of taigu is on the basic development level , productivity and economic feasibility greatly influence on the land sustainable use , however , resource protection and social acceptability restrain its development . as a conclusion , some measures are put forward in this thesis 综合评价结果表明：近几年，太谷县土地利用处于基本可持续阶段，影响最大的是土地生产力水平和经济可行性，但目前主要制约因素是资源保护和社会可接受性，为此提出太谷县土地资源可持续利用的对策。
The paper deals with the main problems of the land resource in sichuan province : both the predominant land form types and the high quality land types make up little share ; not only the photo - temperature productivity but also the land potential productivity need raising ; the quantity of cultivated land , forest land and grazing land averaged to great population is lacking , which indicates that the contradiction between man and land is outstanding ; on the one hand the reserved land resource suitable for cultivation is insufficient , on the other hand the land difficult to cultivate accounts for great share ; the level of land exploitation and utilization is low and the land productivity develops slowly 四川土地资源的主要问题是优势地貌类型占有量少；优质地类比重不大、光温潜力和土地生产潜力的发挥不够；人多地少，人均耕地、林地和牧草地不足，各地类人均占有量极低，人地矛盾十分突出；宜农耕地后备资源贫乏，难利用土地比重大；土地开发利用程度低，土地生产力水平发挥不够。
This paper chooses the indicators of economy and land quality input which has influence on the output , depending on cd - productive function to establish the function between input and output : y : productive forces of the cultivated land f : input of the fertilizer and agricultural chemical i : input of the irrigation l : input of the labor q : input of the land quality a : the level of average management t : the level of changing management a , b , c , d , f : productive elasticity coefficient the factor of the land quality includes texture , content of the organic matter , degree of the pickled , the structure of the soil 本项研究选择了影响农用地总产出的经济投入指标和土地质量投入指标，借助c - d生产函数，建立土地投入产出的函数关系： y = a ? e ~ ( ft ) ? f ~ a ? i ~ b ? l ~ c ? q ~ dy为以土地总产值表示的土地生产力f为化肥和农药的投入i为灌溉投入，即灌溉所需用的水电费l为劳动力投入(考虑了农业机械投入的修正) q为土地质量投入a为平均管理水平t为变化的管理水平a 、 b 、 c 、 d 、 f分别为各相应生产要素的产出弹性系数其中，土地质量因子包括表土质地（ t人有机质含量瞩入盐渍化程度px土体构型p ）等。他们之间的关系为： q （ a ； xt a 。
However , there is less paid attention to the protection of agro - environment , lack of a set of integrated system and method for evaluating ecological effects of agricultural land consolidation , resulting in negative effects of land consolidation on agro - environment and sustainable utilization of land resources 从当前实际情况来看，对通过土地整理增加耕地面积，提高土地生产力这个目标比较重视，也做得比较好；但由于对保护农业生态环境这一目标重视不够，同时缺乏一整套完整的农地整理生态绩效的评价体系和方法，导致土地整理对农业生态环境产生了一些不良影响，影响了土地资源可持续利用。
Land consolidation is an activity that benefits the nation and the people through comprehensive rearrangement of land utilization patterns , structures and distribution , improvement of agricultural production condition , ecology and environment , and enhancement of land productivity and realize intensive land utilization 摘要土地整理是一项旨在通过对土地利用方式、利用结构及利用布局进行综合整治，以达到改善农业生产条件和生态环境，提高土地生产力，实现土地集约化利用的利国利民的活动。
Based on analyzing the concept and the productive features of protected land , the paper analyzes protected land use multi - dimensional characteristic , productivity non - natural trait , intensive and high - efficient trait and the way and essence of protected land increment 本文在保护地概念及其生产特征分析的基础上，从理论上分析了保护地土地利用的特征：保护地土地利用多维性特征、保护地土地生产力形成过程的非自然性、集约高效性特征和保护地土地增值的途径和实质。
Soil erosion in china is serious and causes ecological problems such as river jams , floods , nutrient loss , water pollution , soil degradation , and decrease in land productivity . it has negatively impacted on sustainable agricultural development , and this made many people pay attention 我国是一个水土流失严重的国家，水土流失引起江河淤塞、洪水泛滥、养分流失、水体污染、土壤退化、土地生产力下降等一系列的环境问题，严重地影响了我国农业可持续发展，已引起人们普遍的关注。
