[Objective] This study was to provide basis for the scientific management of land use in Haihe River Basin （HRB） through the quantitative exploration of the land use conversion, changes of intensity and spatial dist...[Objective] This study was to provide basis for the scientific management of land use in Haihe River Basin （HRB） through the quantitative exploration of the land use conversion, changes of intensity and spatial distribution in this region. [Method] With the support of remote sensing technology and geographic information technology, the land use maps of the study area in 40 years （1970-2010） were in- terpreted and plotted. Four kinds of tupu, namely, land use change tupu, process tupu, arising tupu and evolution mode tupu were built through the spatial overlay of the land use maps to analyze the change rules of land use patterns. [Result] The conversion of arable land to construction land was the main characteristics of land use changes in HRB for the 40 years; the area of non-stable region accounted for 35% of the total, indicating that the land use changed remarkably, thus, it was nec- essary to strengthen the scientific land management in HRB; the new conversions to all land use patterns were all the lowest in 1980-1990, indicating that land use changed slowly during this period. [Conclusion] The results indicate that, compared with conventional transfer matrix method, geo-information tupu has obvious advantage in analyzing land use changes that it can demonstrate the spatial distribution of interest region, display the multi-dimensional spatial information.展开更多
目的：总结难愈性褥疮的治疗体会。方法褥疮 IV 期（深溃疡）患者40例，随机分为实验组和对照组。两组患者在手术前均进行支持治疗、清创及应用可调式负压吸引装置处理创面，待创面清洁、肉芽新鲜后行手术治疗封闭压疮创面。对照组19例...目的：总结难愈性褥疮的治疗体会。方法褥疮 IV 期（深溃疡）患者40例，随机分为实验组和对照组。两组患者在手术前均进行支持治疗、清创及应用可调式负压吸引装置处理创面，待创面清洁、肉芽新鲜后行手术治疗封闭压疮创面。对照组19例（28侧），采用传统植皮术或皮瓣转移术，实验组21例（32侧），在清除死腔后利用皮肤牵张闭合器术中扩张牵引，减少创缘张力后一期缝合创面，术后持续使用牵张器2~3周。结果对照组平均住院时间（58.2±2.1）天，术后瘢痕明显有组织供区损伤。实验组平均住院时间（50.8±3.2）天，术后瘢痕不明显，无供区组织损伤，患者满意度高。与对照组相比，实验组住院时间明显缩短，差异有统计学意义（P ﹤0.05）。结论使用皮肤牵张闭合器联合可调式负压吸引装置治疗难愈性褥疮具有方法简单、结果可靠、创伤较小、并发症少等优点。展开更多
基金Supported by the Key Technology R&D Program of Hebei Province (10277105D)the Funds of the Chinese Academy of Sciences for Key Topics in Innovation Engineering(KSCX-EW-J-5)~~
文摘[Objective] This study was to provide basis for the scientific management of land use in Haihe River Basin （HRB） through the quantitative exploration of the land use conversion, changes of intensity and spatial distribution in this region. [Method] With the support of remote sensing technology and geographic information technology, the land use maps of the study area in 40 years （1970-2010） were in- terpreted and plotted. Four kinds of tupu, namely, land use change tupu, process tupu, arising tupu and evolution mode tupu were built through the spatial overlay of the land use maps to analyze the change rules of land use patterns. [Result] The conversion of arable land to construction land was the main characteristics of land use changes in HRB for the 40 years; the area of non-stable region accounted for 35% of the total, indicating that the land use changed remarkably, thus, it was nec- essary to strengthen the scientific land management in HRB; the new conversions to all land use patterns were all the lowest in 1980-1990, indicating that land use changed slowly during this period. [Conclusion] The results indicate that, compared with conventional transfer matrix method, geo-information tupu has obvious advantage in analyzing land use changes that it can demonstrate the spatial distribution of interest region, display the multi-dimensional spatial information.
文摘目的：总结难愈性褥疮的治疗体会。方法褥疮 IV 期（深溃疡）患者40例，随机分为实验组和对照组。两组患者在手术前均进行支持治疗、清创及应用可调式负压吸引装置处理创面，待创面清洁、肉芽新鲜后行手术治疗封闭压疮创面。对照组19例（28侧），采用传统植皮术或皮瓣转移术，实验组21例（32侧），在清除死腔后利用皮肤牵张闭合器术中扩张牵引，减少创缘张力后一期缝合创面，术后持续使用牵张器2~3周。结果对照组平均住院时间（58.2±2.1）天，术后瘢痕明显有组织供区损伤。实验组平均住院时间（50.8±3.2）天，术后瘢痕不明显，无供区组织损伤，患者满意度高。与对照组相比，实验组住院时间明显缩短，差异有统计学意义（P ﹤0.05）。结论使用皮肤牵张闭合器联合可调式负压吸引装置治疗难愈性褥疮具有方法简单、结果可靠、创伤较小、并发症少等优点。
