本文研究了延安研究区不同立地类型的刺槐林地土壤含水量的变化。
Soil water changing of artificial Robinia perseudoscacia at different site conditions Yan an experimental area was studied.
本文研究了延安研究区不同立地类型的刺槐林地土壤含水量的变化。
Study on spatial diversification of soil moisture content of oasis and oasis-desert ecotone in the middle reaches of the Heihe River;
结果表明，在年生长期中，刺槐林地水分条件严酷、土壤有效水分少。
The results show that the soil water conduction of the plantation was very poor and the available water content was very low during the growing season.
最后，以北京刺槐林数据为实例，成功地应用了该系统所实现的功能。
Finally, taking the data of Beijing Locust Forest as example, the proposed system is applied in the Beijing Locust Forest, and the related functions are realized successfully.
该树种可望成为辽南地区营造速生林和普通刺槐林更新改造的首选树种。
Tetraploids locust is expected to become the first selection species in silviculture and regeneration in the south of Liaoning Province.
本文根据林分结构和森林产量长期实验林的研究成果，提出了刺槐林的抚育作业次序。
In the paper the sequence of forest tending operations in black locust stands is proposed, based on results of long-term stand structure and forest yield trials.
而延安和固原刺槐林地水分生产力较低且稳定性差，刺槐林稳定生长期不超过40年。
In forestlands of Yan'an and Guyuan, the annual net productivities were low and instable, and stable growth periods did not exceed 40 years.
分析了不同雨量条件下刺槐林地土壤水分下渗过程，得出不同雨量下的土壤水分下渗深度即稳定渗深。
Processes of soil water infiltration in black locust plantation were discussed and stable depths of soil water infiltration under different rainfalls were obtained.
分析了不同雨量条件下刺槐林地土壤水分下渗过程，得出不同雨量下的土壤水分下渗深度即稳定渗深。
Processes of soil water infiltration in black locust plantation were discussed and stable depths of soil water infiltration under different rainfalls were obtained.
应用推荐