黄土高原抗旱造林技术

本项目主攻目标是解决半干旱区径流林业的理论与技术问题。主要进行了不同造林整地方法径流集存、林地覆盖、吸水剂沾根、幼林地施肥及林草间作等抗旱造林技术措施。技术关键围绕解决黄土丘陵区造林地的水分不足问题。研究提出刺槐、山杏、山桃等主要造林树种系列抗旱造林技术和沙打旺红豆草、披碱草等适于以上树种间作的草种；造林成活率达85%以上，经济林达90%以上，保存率达75%以上，生物产量提高达20%以上。摸索到一套黄土丘陵区水土保持抗旱造林技术措施，为“三北”防护林工程建设提供了科学依据和可行的技术措施。成果达到国际先进水平。经济效益极为显著，主要用于提高造林成活率，保存率及生物产量，在黄土高原及其他半干旱区具有广阔的应用前景

黄土高原抗旱造林技术

本项目主攻目标是解决半干旱区径流林业的理论与技术问题。主要进行了不同造林整地方法径流集存、林地覆盖、吸水剂沾根、幼林地施肥及林草间作等抗旱造林技术措施。技术关键围绕解决黄土丘陵区造林地的水分不足问题。研究提出刺槐、山杏、山桃等主要造林树种系列抗旱造林技术和沙打旺红豆草、披碱草等适于以上树种间作的草种；造林成活率达85%以上，经济林达90%以上，保存率达75%以上，生物产量提高达20%以上。摸索到一套黄土丘陵区水土保持抗旱造林技术措施，为“三北”防护林工程建设提供了科学依据和可行的技术措施。成果达到国际先进水平。经济效益极为显著，主要用于提高造林成活率，保存率及生物产量，在黄土高原及其他半干旱区具有广阔的应用前景

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies