耕地中的非耕地是影响耕地面积遥感调查精度的主要因素。以2005年度中巴资源卫星数据和Quick B ird数据为信息源,通过对传统的分层抽样方法进行改进,采用GIS和RS技术对伊宁县耕地中的非耕地进行抽样计算,并利用加权法和平均法得到伊宁...耕地中的非耕地是影响耕地面积遥感调查精度的主要因素。以2005年度中巴资源卫星数据和Quick B ird数据为信息源,通过对传统的分层抽样方法进行改进,采用GIS和RS技术对伊宁县耕地中的非耕地进行抽样计算,并利用加权法和平均法得到伊宁县非耕地系数的估计值,计算结果表明:研究区北部地区的非耕地系数为0.142 7,中部地区为0.084 0,南部地区为0.076 1。通过抽样检验,上述结果满足精度要求,可以应用于伊宁县或与伊宁县具有相似状况地区耕地面积的遥感调查,以提高其调查的精度。展开更多
To realize the fusion development of modem agricultural demonstration zone in Beijiang District, on one hand, it should fully depend on its own resource conditions; on the other hand, it should positively promote the ...To realize the fusion development of modem agricultural demonstration zone in Beijiang District, on one hand, it should fully depend on its own resource conditions; on the other hand, it should positively promote the policy innovation and system mechanism innovation. The author thinks that promoting the fusion development of modern agriculture in Beijiang District should first recognize the importance and necessity of fusion development strategy, and then promote this fusion engineering from system and mechanism. Finally, it should make innovations in policy, in order to provide overall protection of modern agricultural fusion development in Beijiang District.展开更多
文摘To realize the fusion development of modem agricultural demonstration zone in Beijiang District, on one hand, it should fully depend on its own resource conditions; on the other hand, it should positively promote the policy innovation and system mechanism innovation. The author thinks that promoting the fusion development of modern agriculture in Beijiang District should first recognize the importance and necessity of fusion development strategy, and then promote this fusion engineering from system and mechanism. Finally, it should make innovations in policy, in order to provide overall protection of modern agricultural fusion development in Beijiang District.