Soil moisture is a critical component of the soil-plant-atmosphere continuum(SPAC)in fruit trees.However,highprecision monitoring of orchard soil moisture at the regional scale still remains a challenge.This study pre...Soil moisture is a critical component of the soil-plant-atmosphere continuum(SPAC)in fruit trees.However,highprecision monitoring of orchard soil moisture at the regional scale still remains a challenge.This study presents a two-stage feature space model to estimate root zone soil moisture using UAV remote sensing data.The results indicate that the temperature-leaf area index(TLDI)is negatively correlated with soil water content.The upper triangular space performs highly effectively for deep soil moisture inversion,with R2 values ranging from 0.56 to 0.66,RMSE between 0.20 and 0.27,and RPD from 1.25 to 1.50.Conversely,the lower triangular space yields superior results for shallow soil moisture inversion,with R2 values between 0.67 and 0.82,RMSE from 0.15 to 0.19,and RPD between 1.67 and 2.09.The results suggest that the lower triangular space is optimal for shallow soil moisture inversion,while the upper triangular space is more suited for deep soil moisture inversion.This study presents a novel approach for estimating deep soil moisture in orchards,providing a theoretical basis for improving soil moisture management.展开更多
Most crops were first domesticated about 13 000 to 11 000 years ago. Humans are dependent on crops for survival, and from the beginnings of agriculture have been energetically involved in developing crops that better ...Most crops were first domesticated about 13 000 to 11 000 years ago. Humans are dependent on crops for survival, and from the beginnings of agriculture have been energetically involved in developing crops that better serve their needs （Allard 1999）. During the last decades breeding has contributed approximately a 50% contribution to increasing the world＇s food crop production. However, plant breeding only began to adopt a scientific approach in the 1900s, when Mendel＇s hybridization experiment was rediscovered. Mendelian genetics and the development of the statistical concepts of randomJzatJon and replication had considerable impact on plant breeding methods （Hallauer et al. 1988）. In spite of the fact that scientific crop breeding has only existed for one century, it is a discipline that is developing very quickly. The major objective of crop breeding programs is to develop new genotypes that are genetically superior to those currently available for specific environments. To achieve this objective, breeders employ a range of selection methods and technologies （Hallauer et al. 1988; Falconer and Mackay 1996; Allard 1999）.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.52309050)Key R&D and Promotion Projects in Henan Province(Science and Technology Development)(Grant No.232102110264)+2 种基金Key Scientific Research Projects of Colleges and Universities in Henan Province(Grant No.24B416001)Youth Backbone Teacher Project of Henan University of Science and Technology(Grants No.13450013 and 13450010)Sichuan Province Science and Technology Support Projects(Grants No.2023YFQ0025,2024YFHZ0217,2024ZHCG0101,2024YFHZ0200).
文摘Soil moisture is a critical component of the soil-plant-atmosphere continuum(SPAC)in fruit trees.However,highprecision monitoring of orchard soil moisture at the regional scale still remains a challenge.This study presents a two-stage feature space model to estimate root zone soil moisture using UAV remote sensing data.The results indicate that the temperature-leaf area index(TLDI)is negatively correlated with soil water content.The upper triangular space performs highly effectively for deep soil moisture inversion,with R2 values ranging from 0.56 to 0.66,RMSE between 0.20 and 0.27,and RPD from 1.25 to 1.50.Conversely,the lower triangular space yields superior results for shallow soil moisture inversion,with R2 values between 0.67 and 0.82,RMSE from 0.15 to 0.19,and RPD between 1.67 and 2.09.The results suggest that the lower triangular space is optimal for shallow soil moisture inversion,while the upper triangular space is more suited for deep soil moisture inversion.This study presents a novel approach for estimating deep soil moisture in orchards,providing a theoretical basis for improving soil moisture management.
文摘Most crops were first domesticated about 13 000 to 11 000 years ago. Humans are dependent on crops for survival, and from the beginnings of agriculture have been energetically involved in developing crops that better serve their needs （Allard 1999）. During the last decades breeding has contributed approximately a 50% contribution to increasing the world＇s food crop production. However, plant breeding only began to adopt a scientific approach in the 1900s, when Mendel＇s hybridization experiment was rediscovered. Mendelian genetics and the development of the statistical concepts of randomJzatJon and replication had considerable impact on plant breeding methods （Hallauer et al. 1988）. In spite of the fact that scientific crop breeding has only existed for one century, it is a discipline that is developing very quickly. The major objective of crop breeding programs is to develop new genotypes that are genetically superior to those currently available for specific environments. To achieve this objective, breeders employ a range of selection methods and technologies （Hallauer et al. 1988; Falconer and Mackay 1996; Allard 1999）.
