fatty-streak 发表于 2025-3-26 23:28:17

lly digitize the analogue backscattered echo of the emitted laser pulse with a high frequency. FWF digitization has the advantage of not limiting the number of echoes that are recorded for each individual emitted laser pulse. Studies utilizing FWF data have shown that more echoes are provided from r

Hot-Flash 发表于 2025-3-27 03:18:08

E. Krügertions. The single tree detection and area based methods originally developed in more complex forest types were found to be no less effective in plantation forests for the estimation of important stand parameters such as stocking, height, basal area, volume and leaf area. Further accuracy gains have

生命 发表于 2025-3-27 06:41:22

http://reply.papertrans.cn/55/5410/540979/540979_33.png

Injunction 发表于 2025-3-27 09:58:53

http://reply.papertrans.cn/55/5410/540979/540979_34.png

玩笑 发表于 2025-3-27 16:48:35

E. Krügernts, the removal effect and height distribution of N and P of reed, cattail, and giant reed were determined in Yixing. Results showed that all these plants could reduce N and P concentrations in wetlands, and a “backflow” rule of nitrogen and phosphorus was observed in the plants. In spring and summ

Dislocation 发表于 2025-3-27 18:24:07

E. Krügerrmed in Yixing City to determine changes in soil organic matter, total nitrogen, total phosphorus, total potassium, available phosphorus, and available potassium. Results showed the evident effects of building protective forests along the lake on changes in soil nutrient content, which exhibited a c

花费 发表于 2025-3-28 00:47:17

http://reply.papertrans.cn/55/5410/540979/540979_37.png

confederacy 发表于 2025-3-28 04:44:55

http://reply.papertrans.cn/55/5410/540979/540979_38.png

漂浮 发表于 2025-3-28 08:19:00

http://reply.papertrans.cn/55/5410/540979/540979_39.png

Biomarker 发表于 2025-3-28 13:11:13

http://reply.papertrans.cn/55/5410/540979/540979_40.png
页: 1 2 3 [4]
查看完整版本: Titlebook: Kulturtechnischer Wasserbau; III.Teil Wasserbau 7 E. Krüger Book 1921 Julius Springer in Berlin 1921 Abwasser.Beschaffung.Entwässerung.Grun