摘要
采用系统抽样方法，分别在四周建有泡桐防护林带的苹果园东、西、南、北４个方向上离林带等距离布设样点，对各样点的光照强度、日照时数、叶面温度、蒸腾强度、净光合速率以及苹果的生长发育和产量品质指标进行了观测分析。结果表明，由于泡桐林带遮光对近林带样点的影响，相对日照总量（ＫＳＴ）降低３５．７４％，各项生长发育和产量品质指标均受到不同程度的影响。其影响范围为：距南北向林带８ｍ以内、东西向林带５ｍ以内。据此提出了桐果农在时间和空间上的间作模式，以及苹果园泡桐防护林带（网）的配置方式。
In an apple orchard sheltered by forest belts of Paulownia,sample points were set with isodistance in four directions according to the method of Systematic Sampling. In each sample point, measurement and analysis were made with the light intensity,sunlight lenghth, leaf temperature, transpiration rate, net photosynthetic rate,the growth,development,yield and fruit quality of the apple trees on the nearby points. Results showed that the sum of relative direct sunlight(KST) decreased by 35. 74%. The growth, development, yield and fruit quality of the apple trees were all reduced to varying degrees. The ranges of shading by forest belts within which apple growth, development, yield and furit quality were affected reached 5 m from the westeastern row and 8 m from the north-southern row. The rational models of 'Paulownia+Apple +Crop'intercropping, which could be either in temporal sequence or in spatial mixture, were put forward in the light of these ranges.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1994年第4期409-417,共9页
Journal of Huazhong Agricultural University
关键词
泡桐
苹果
间作
光照强度
paulowina
apple
intercropping
light intensity
