中文摘要：

在农户土地利用引起的环境问题日益严重的背景下,如果农户土地利用效率的测度只考虑＂好＂产出,而忽略＂非意欲＂的环境产出,可能造成测度结果不准确。因此,将＂非意欲＂产出引入农户土地利用效率评价模型,利用河南省粮食生产核心区农户抽样调查数据测度环境因素约束下的农户土地利用效率,并探讨其效率状况及影响因素。主要的结论如下：1调查区域环境因素约束下的农户土地利用效率平均值仅为0.612,效率值总体不高,有较大的提升空间。不同规模农户的土地利用效率差异较大,二者呈现＂U型＂变化趋势。2环境因素约束下的农户土地利用效率的影响因素来自多个方面。其中,农户生计方式兼业化在一定程度上降低了环境约束下的农户土地利用效率;种植结构调整虽然能够增加农户农业收入,但不利于环境因素约束下的农户土地利用效率的提升;农地经营规模扩大对环境约束下的农户土地利用效率产生正面影响,但现实中普遍存在的小规模化经营和土地细碎化消减了正面影响。土地产权的稳定性能够提升环境约束下的农户土地利用效率,但无论是集体土地产权还是承包经营权以及农户间非正式的土地流转产权关系稳定性较差,不利于环境约束下的农户土地利用效率的提高。

英文摘要：

The problem of agricultural environment is closely related to the land use of the household, and it is derived from the household＇s land use behavior. Under the background of the increasingly serious environmental problems caused by the household＇s land use, the measure of household land use efficiency which only considering the‘good＇output, but ignoring the‘non-intended＇environmental output, may result in inaccurate measurement. Therefore, this article will introduce the‘non-intended＇environmental output into the evaluation model of household land use efficiency, based on household survey data of the core area of food production in Henan Province, make use of directional distance function model to measure household land use efficiency which considering environmental factors, and lastly explored household land use efficiency condition and its influencing factors. The main findings are： 1）the average household land use efficiency which base on environmental factors of Henan Province was 0.612, indicating that in considering environmental factors, the actual output of household land use accounted for optimal output, compared with only 61.2%. More than half of households efficiency values are under 0.6. It can be seen that the efficiency of the value is not high, there is enormous room for growth. Household land use efficiency of different scale household are with great differences, they presenting‘U-type＇trend. The number of households in the middle land scale is the largest, and the proportion is 44.15%, but the average value of the land use efficiency is the smallest, which shows the potential threat to the current land use and so on. 2） The empirical results show that affecting factors of household land use efficiency considering environmental factors are multifaceted, such as the farm household characteristics（age of household head, education and labor force）, household livelihoods, planting structure, household production scale, the degree of fragmentation of agricultural commerci