文章利用江苏省太湖上游地区513户农户的微观调查数据，采用双变量Biprobit模型实证分析了农地确权面积与农户环境友好型农业技术采纳行为之间的关系。结果显示：农地确权面积与农户有机肥施用行为间存在"倒U"型关系，其中农户商品有机肥施用最优确权规模是样本农户确权面积最大值的2.6倍，农户农家肥施用的最优确权规模是当地户均农地确权面积的2倍，这意味着样本地区农户确权面积尚未达到有机肥施用的最优规模；此外，风险偏好型农户倾向于施用商品有机肥，而风险规避者认为自产农家肥更可靠。探明农地承包经营权确权究竟如何影响农户环境友好型农业技术采纳行为，是从农地产权制度改革视角改善太湖流域农业面源污染微观治理机制关键着眼点。为提升农户环境友好型农业技术采纳积极性，应通过整合确权政策实现农地适度集中规模化经营，建立环境友好型农业技术采纳风险保障机制，促进农业生产与生态环境保护良性循环。

Based on the micro-survey data of 513 peasant households in the upper reaches of Taihu basin in Jiangsu province, this paper empirically analyzes relationship between acreage of farmland rights certifiation (FRC) and farmers' adoption behavior of environment friendly agricultural technology (EFAT) by using Bivariate Probit model.The results show that there is an "inverted U" relationship between the area of FRC and the farmer's application behavior of organic fertilizer, in which the optimal scale of FRC for farmers applying commercial organic fertilizer is 2.6 times of the maximum size of the sample farmers' confirmed land area, and the optimal scale of FRC for farmers using agricultural fertilizer is 2 times of the average area of sample farmers' FRC.This means that the farmer's confirmed area in the sample area has not reached the optimal scale for organic fertilizer application.Besides, risk-appropriate farmers tend to apply commercial organic fertilizer, while risk averse thinks that self-produced farmyard manure is more reliable.It is critical to explore how the farmland rights certification (FRC) affects the farmers' behavior of adopting environment-friendly agricultural technology (EFAT), to improve the micro-control mechanism of agricultural non-point source pollution in Taihu basin from the perspective of the reform of farmland property right system.To improve the enthusiasm of farmers' behavior of adopting EFAT, it is necessary to integrate policy of FRC to ensure the appropriate centralized and large-scale operation of agricultural land, establish a risk guarantee mechanism of adopting EFAT, and promote a virtuous cycle of agricultural production and ecological environmental protection.

F321.1;F323.3

国家社会科学基金青年项目"农地‘三权分置’下新型农业经营主体与农户的利益共享机制研究"（18CJY031）；江苏省高校哲学社会科学研究基金项目"三权分置下土地经营权属性对经营主体投、融资行为的影响研究——以苏南地区为例"（2017SJB1731）；中国博士后科学基金面上项目"‘三权分置’下农地多元权利主体利益共享机制研究"（2018M642274）